TWI293301B - A1 adenosine receptor antagonists - Google Patents
A1 adenosine receptor antagonists Download PDFInfo
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- TWI293301B TWI293301B TW090129678A TW90129678A TWI293301B TW I293301 B TWI293301 B TW I293301B TW 090129678 A TW090129678 A TW 090129678A TW 90129678 A TW90129678 A TW 90129678A TW I293301 B TWI293301 B TW I293301B
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- JOUDBUYBGJYFFP-FOCLMDBBSA-N thioindigo Chemical compound S\1C2=CC=CC=C2C(=O)C/1=C1/C(=O)C2=CC=CC=C2S1 JOUDBUYBGJYFFP-FOCLMDBBSA-N 0.000 description 1
- 150000007944 thiolates Chemical class 0.000 description 1
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- DRTQHJPVMGBUCF-UHFFFAOYSA-N uracil arabinoside Natural products OC1C(O)C(CO)OC1N1C(=O)NC(=O)C=C1 DRTQHJPVMGBUCF-UHFFFAOYSA-N 0.000 description 1
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Classifications
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Description
1293301 A7 B7 五、發明説明(1 ) 本案主張2000年1 2月1曰申請之美國臨時專利申請案編 號60/250,658之利益,其併入本文供參考。 . 發明之技術領域 本發明係關於醫藥化學及藥理學。本發明更特別關於腺 甞受體之拮抗劑,包括這些化合物之醫藥組合物,以及製 造彼等及使用彼等以治療疾病之方法。 發明之背景 腺荅為到處存在之生物化學傳訊者。腺甞結合及活化七 種穿膜跨越之G蛋白質偶合之受體,激發各種生理反應。 腺甞受體分成四種已知之亞型(即Ai,A2a,A2b及A3)。 這些受體亞型調節不同,有時相反,之作用。例如,腺甞 Αι受體之活化激發腎血管抗性之增加,而腺甞A2a受體之 活化激發腎血管抗體之減少。 在大部份哺乳類器官系統中,代謝壓力(stress)期間造成 組織中腺芬之濃度顯著增加。例如,心臟產生及釋放腺甞 以調節對於壓力之適應反應,如心跳速率降低及冠狀血管 擴張。同樣地,對於低氧,代謝壓力,及許多毒腎物質之 反應,腎中腺荅濃度增加。腎在結構上亦產生腺甞。腎可 調節結構上所產生腺甞之量以調節絲球體之過濾及電解質 之再吸收^關於絲球體過濾之控制,Αι受體之活化導致傳 入小動脈收縮,而A2a受體之活化導致傳出小動脈擴張。 A2a受體之活化對於傳入小動脈產生血管擴張作用。總之, 這些絲球體腺甞受體活化之作用為降低絲球體過濾之速 率。此外,At腺甞受體位於小管近端及小管遠端位置。這 -4- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1293301 A7 B7 五、發明説明(2 ) 些受體之活化刺激鈉由小管腔再吸收。因此,阻斷腺甞對 於這些受體之作用可造成絲球體過濾速率升高及鈉排出增 加0 發明之摘要 本發明係基於發現式I及11之化合物為特定亞型腺芬受體 之有效及選擇性抑制劑。基於此發現,本發明之特徵在於 腺芬拮抗劑可用於預防及/或治療許多疾病,包括心臟及循 環疾病,中樞神經系統之變性疾病,呼吸疾病,及許多適 合利尿治療之疾病。一般而言,本發明之特徵在於腺甞Ai 受體之高度有效及選擇性拮抗劑。 本發明之特·徵在於下式I或11之化合物:
R?
R? ☆
式II -5- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1293301 A7 B7 五、發明説明(3 ) 其中Ri&R2獨立選自下列: a )鼠, b) 烷基,烯基,或炔基,其中該烷基,埽基,或炔基為 未經取代,或具有一或多個選自下列之取代基:羥基,烷 氧基,胺基,烷胺基,二烷胺基,雜環基,醯基胺基,烷 基磺醯基胺基,及雜環基羰基胺基Γ及 c) 芳基或經取代之芳基; R3係選自下列: (a) —個雙環,三環,或五環基,選自下列:
-6 - 本紙張尺度適用中國國家榉準(CNS) A4規格(210 X 297公釐) 1293301 A7 ______B7 五、發明説明(4 )
其中雙環,三環,或五環基為未經取代,戒鼻有一或多個 選自下列之取代基: , (i )燒基,婦基,及块基;其中各嫁基’烯基或块基 為未經取代,或具有一或多個遂自下列之取代基·· (貌氧基談基)芳燒基胺基甲醯慕’(胺基)(D酿基 肼基羰基,(胺基)(r5)醯氧基羧基,(羥基)(烷氧 羰基).烷基胺基甲醯基,醯基膀基烷基胺基,醯氧 基,酸基,婦氧基,埽基胺基,婦基續酿基胺基’ 烷氧基,烷氧基羰基,烷氧基羰基烷基胺基,烷氧 基羰基胺基,烷氧基羰基胺基籬氧基,燒氧基羰基 胺基烷基胺基,烷基胺基,烷基胺基烷基胺基,烷 基胺基甲醯基,烷基膦酸基,嫁基磺醯基胺基,烷 基磺醯基氧基,胺基,胺基醯氧基,胺基烷基芳烷 基胺基甲醯基,胺基烷基胺基f醯基,胺基烷基雜 環基烷基胺基f*醯基,胺基環嫁基烷基環烷基胺基 甲醯基,胺基環烷基胺基甲醯基,芳烷氧基羰基, 芳烷氧基羰基胺基,芳基雜環基,芳基氧基,芳基 績酿基胺基’芳基續酿基氧基’胺基甲酿基’談 基,氰基,氰基烷基胺基甲醯基’環烷基胺基,二 烷基胺基,二烷基胺基烷基胺基,二烷基胺基烷基 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1293301
五、發明説明(5 ) 胺基甲酿基,二垸*基膦酸基,函燒基橫驗基胺基’ 鹵素,雜環基,雜環基烷基胺基,雜環基胺基甲酿 基,羥基,羥基烷基磺醯基胺基,肟基,磷酸基, 膦酸基,-r5,R5-烷氧基,R5-燒基(燒基)胺基’ r5-烷基烷基胺基甲醯基,R5-烷基胺基,R5·烷基 胺基甲龜基,R5 -燒基磺酿基’ Rr烷基續酿基胺 基,r5-烷基硫基,Rr雜環基羰基,經取代之芳燒 基胺基,經取代之芳基羧基烷氧基羰基’經取代之 芳基橫醯基胺基垸基醯基’經取代之雜芳基續酿基 胺基,經取代之雜環基,經取代之雜環基胺基燒基 胺基,經取代之雜環基績酿基胺基’硫氧基 (sulfoxy)酸基胺基’硫胺基甲酿基’三氟甲基,及 (ii) (烷氧基羰基)芳烷基胺基甲醯基,(胺基)(Rs)醯基 肼基羰基,(胺基)(尺5)醯氧基羧基,(羥基)(烷氧 羰基)烷基胺基甲醯基,醯基胺基烷基胺基,醯氧 基,醛基,婦氧基,晞基胺基,烯基磺醯基胺基, 烷氧基,烷氧基羰基,烷氧基羰基烷基胺基,烷氧 基羰基胺基,烷氧基羰基胺基醯氧基,烷氧基羰基 胺基烷基胺基,烷基胺基,烷基胺基烷基胺基,烷 基胺基甲醯基,烷基膦酸基,烷基磺醯基胺基,烷 基磺醯基氧基,胺基,胺基醯氧基,胺基烷基芳烷 基胺基甲醯基,胺基烷基胺基甲醯基,胺基烷基雜 環基烷基胺基甲醯基,胺基環烷基燒基環烷基胺基 甲醯基,胺基環烷基胺基甲醯基,芳烷氧基羰基, -8 - 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公嫠) 1293301 A7 B7 五、發明説明(e ) 芳烷氧基羰基胺基,芳基雜環基,芳基氧基,芳基 磺醯基胺基,芳基磺醯基氧基,胺基甲醯基,羰 基,氰基,氰基烷基胺基甲醯基,環烷基胺基,二 烷基胺基,二烷基胺基烷基胺基,二烷基胺基烷基 胺基甲醯基,二烷基膦酸基,函烷基磺醯基胺基, 鹵素,雜環基,雜環基烷基胺基,雜環基胺基甲醯 基,經基,基燒基續醯基胺基,Μ基,鱗酸基, 膦酸基,-R5,烷氧基,烷基(燒基)胺基, R5-烷基烷基胺基甲醯基,R5-烷基胺基,R5-烷基 胺基甲醯基,R5-烷基磺醯基,R5-烷基磺醯基胺 基,R5-烷基硫基,R5-雜環基羰基,經取代之芳烷 基胺基,經取代之芳基羧基烷氧基羰基,經取代之 芳基續酿基胺基燒基酿基,經取代之雜芳基續酿基 胺基,經取代之雜環基,經取代之雜環基胺基烷基 胺基,經取代之雜環基磺醯基胺基,硫氧基 (sulfoxy)醯基胺基,硫胺基甲醯基,三氟甲基; R4係選自氫,Cle4烷基,Ci.4烷基-C02H,及苯基,其中 Ci-4烷基,Ci.4烷基-C02H,及苯基為未經取代,或具有 一至三個選自下列之取代基:鹵素,-OH,-OMe,NH2, N02,苯甲基,及苯甲基具有一至三個選自鹵素,-OH, -OMe,-NH2,-N02之取代基; R5 係選自-(CHhCOOH,-c(cf3)2oh,-conhnhso2cf3 ,-conhor4,-conhso2r4,-conhso2nhr4, -C(0H)R4P03H2,-NHCOCF3,-NHC0NHS02R4, • 9 - 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1293301 A7 B7 五、發明説明(7 ) -ΝΗΡ03Η2,-NHS02R4,-NHS02NHC0R4,-0Ρ03Η2, -0S03H,-PO(OH)R4,-Ρ03Η2,-S03H,-S02NHR4, -so3nhcor4,-so3nhconhco2r4,及下列:
A係選自- CH = CH,-(CH)m-(CH)m,CH = CH-CH2,及 -ch2-ch = ch ; m = 1 或 2 ; X為0或s ; Z 係選自一單鍵…Ο - ’ - ( CH2)n- ’ - Ο - ( CH2)i-2- ’ -CH2OCH2- J ~(CH2)i-2*〇· j -CH = CHCH2- * -CH = CH- j 及-ch2ch = ch-;及 R 6係選自氫,烷基,醯基,烷基磺醯基,芳烷基,經取代 之芳烷基,經取代之烷基,及雜環基;及 R7係選自下列: * a) 氫; b) 烷基,不少於3個碳之婦基,或不少於3個碳之決基; 其中該烷基,缔基,或炔基為未經取代’或具有一或多個 -10- 本紙張尺度適用中國國W準(CNS) A4規格(21〇X 297公嫠) 1293301 A7 B7 五、發明説明(8 ) 選自下列之取代基:羥基,烷氧基,胺基,烷基胺基,二 烷基胺基,雜環基,醯基胺基,烷基磺醯基胺基,及雜環 基羰基胺基;及 c) 芳基或經取代之芳基; d) 烷基芳基或烷基經取代之芳基。 式I或11之化合物可選擇性呈例如非對掌性化合物,消旋 物,光學活性化合物,純非對映體,非對映體之混合物, 或藥理學上可接受之加成鹽之形式。在某些較佳具體實施 例中,本發明化合物為式I或11中R i及R 2均不為氫之化合 物,及{^及!^各獨立選自下列 a )坑基’缔基’或块基’其中該坑基’婦基,或決基為 未經取代,或具有一或多個選自下列之取代基:羥基,烷 氧基,胺基,燒胺基,二烷胺基,雜環基,醯基胺基,烷 基磺醯基胺基,及雜環基羰基胺基;及 b)芳基或經取代之芳基。 更佳至少R!及R 2之一為烷基。在其他較佳具體實施例 中, A為-(CH)m-(CH)m 〇 在其他較佳具體實施例中,汉7為烷基,Z較佳為一單鍵。 本發明之較佳化合物為: 2-(4 -羥基-雙環[2· 2.2]辛-1-基)-7 -異丙基-4-丙基-1,4,6,7-四氫- l,3,4,5a,8 -五氮雜-艾斯(as)·印達辛 (indacen)-5-酮(化合物 1); 7-乙基- 2-(4 -羥基-雙環μ·2·2]辛-1-基)-4-丙基乂 -11- 本紙張尺度適用中國國家標準(CNS)A4規格(210X297公I) 1293301 A7 ___ B7 五、發明説明(9 ) 1,4,6,7-四氫-1,3,4,5&,8-五氮雜_艾斯(“)_印達辛 (indacen) — 5-酮(化合物 2); 3-[4-(7-乙基-5-氧基-4-丙基 _4,5,6,7-四氫-lH-l,3,4,5a,8 -五氣雜-艾斯(as) -印達辛(indacen)-2 -基)-雙 環[2·2·2]辛-1-基卜丙酸(化合物3); 2- (4-羥基ν雙環[2.2.2]辛-1-基广7_甲基-4·丙基· 1,4,6,7-四氫- l,3,4,5a,8-五氮雜-艾斯(as)_印達辛 (indacen)-5-酮(化合物 4);及 3- [4-(7 -異丙基-5 -氧基-4_丙基-4,5,6,7 -四 氫-ΙΗ-l,3,4,5a,8-五氣雜艾斯(as) -印達辛(indacen)-2 -基)-雙 環[2·2·2]辛-1-基卜丙酸(化合物5)。 本發明化合物可以修飾以增進所欲性質。該修飾為此技 藝中已知’包括在生物學上增加’參透入一個特定生物學系 統(例如血液,淋巴系統,中樞神經系統),增加口服可利 用性’增加溶解度以便經由注射施用,改變代謝,及/或改 變排泄速率。這些修飾之實例包括,但不限於,以聚乙二 醇酿化,以新戊酸酯或脂肪酸取代基衍化,轉化為胺基甲 酸酯,芳環之羥化,及芳環經雜原子取代。 本發明之特徵亦在於一種醫藥組合物,包括任一種上述 化合物單獨或與一種適合賦形劑組合在一起。 本發明之特徵亦在於一種治療顯示Ai腺:y:受體活化為疾 病或達常原因之疾病或達常跡象或徵候之病人之方法。該 方法包括對於該病人施用有效量之任一種上述化合物。該 疾並或達常可為例如系統性高血壓,腎衰竭,糖尿病,氣 -12- 張尺度適用_家標準(⑽)A4giGχ撕公董) 1293301 A7 B7 五、發明説明(1〇 ) 喘,水腫症狀,充血性心臟衰竭,或腎功能不良(例如,腎 功能不良為一種用於治療充血性心臟衰竭之利尿劑所發生 之副作用,或腎毒性為以化學治療劑治療所發生之副作 用)。 本發明化合物提供下列優點。例如,(1 )彼等可以低劑量 使用以使可能發生之副作用減至最少,(2)彼等可併入許多 劑形,包括,但不限於,藥丸,錠,膠囊,氣溶膠,栓 劑,食入或注射之液體調配物,食物補充物,或局部製 劑。除人類醫藥應用外,本發明化合物可用於獸醫之動物 治療。在一些具體實施例中,醫藥組合物係調配以經口, 經靜脈内,經肌肉内,或經皮下施用。 本發明之特徵亦在於一種製備上述化合物之方法,包含 下列步驟:(a) —種硫酮烷基化以產生一種硫醚;b)該硫醚 與一種經取代之胺基醇反應以產生一種醇中間物;及〇該 醇中間物環化以產生一種環化產物、 在一些具體實施例中,上述方法另包含下列步驟:a)該 環化產物轉化為一種羧酸衍生物。在一些具體實施例中, 該方法包含下列步驟:a)一種二胺基尿嘧啶與雙環[2.22] 辛-1,4 -二羧酸一甲酯偶合以產生一種酸;b)該酸還原成一 種對應醇;c)該醇氧化成一種醛;d)該醛與(三苯基亞正膦 基(phosphoroanylidene))醋酸甲酯偶合以產生一種偽合產 物;e)該偶合產物轉化為一種硫酮;f)該硫酮烷基化以產 生一種硫g)該硫醚與一種經取代之胺基醇反應以產生 一種醇中間物;h)該醇中間物環化以產生一種環化產物; -13- 本紙張尺度適用中國國豕標準(CNS) A4規格(210X297公爱) 1293301 A7 B7 五、發明説明(11 ) 及i)該環化產物轉化為一種羧酸衍生物。 在一些具體實施例中,該方法包含下列步驟·· a) —種二 胺基尿嘧啶與雙環[2·2·2]辛-1,4-二羧酸一甲酯偶合以產 生一種酸;b)該酸酯化成一種對應酯;c)該酯轉化以產生 一種硫酮;d )該硫酮烷基化以產生一種硫醚;e )該硫醚與 一種經取代之胺基醇反應以產生一種醇中間物;f)該醇中 間物環化以產生一種環化產物;及g)該環化產物轉化為一 種羧酸衍生物。 在一些具體實施例中,該方法包含下列步驟:a)6-胺基_ 1-丙基-1H -喊咬-2,4-二酮亞確基化以產生一種亞硝基中 間物;b)該亞硝基中間物還原以產生對應之二胺基尿嘧 咬;c)該二胺基尿喊淀轉化為一種胺鹽;d)該胺鹽與4 -幾 基·雙%[2·2·2]辛-1-幾酸偶合以產生一種偶合產物;6)該 偶合產物轉化為一種硫酮;f)該硫酮烷基化以產生一種硫 趟,g)該硫醚與一種經取代之胺基醇反應以產生一種醇中 間物;及h )該醇中間物環化以產生一種環化產物。 本發明之其他特徵及優點可由下列詳細說明及申請專利 範圍而明瞭。 發明之詳細說明 除非另外定義,本文中所有技術及科學術語具有熟習本 發明技蟄人士一般所明瞭之相同意義。雖然相似或相等於 本文中所述之方法及材料可用於本發明之實施或試驗中, 但是適合之方法及材料說明如下。本文中所述之所有公 開專利中請案,專利,及其他參考資料全部併入供參
1293301 A7 B7 五、發明説明(12 ) 考β此外,材料,方法,及實例僅用於例示,並非用於限 制。 在本說明書中,”包含”或其變異如”包括”或”含有”表示 包括所述之整體或整組,但是不排除任何其他整體或整 組。 本文中所用之”缔基”為具有至少一個雙鍵之脂族碳基。 烯基可為直鏈或分支鏈,可具有例如3至6個碳原子於一鏈 中及1或2個雙鍵。埽基之實例包括,但不限於,婦丙基及 異戊二烯基。 本文中所用之”炔基”為具有至少一個三鍵之脂族碳基。 炔基可為直鏈或分支鏈,可具有例如3至6個碳原子於一個 鏈中及1至2個三鍵。炔基之實例包括,但不限於,炔丙基 及丁炔基。 本文中所用之”芳基”為苯基或莕基,或其衍生物經取 代之芳基”為一個芳基經一或多個取代基如燒基,燒氧基, 胺基,硝基’幾基,燒基談基,氰基,燒胺基,二燒胺 基,齒,羥基,羥基烷基,巯基,烷基巯基,三齒烷基, 叛燒基,硫氧基(sulfoxy),或胺基甲酿基取代。 本文中所用之”芳烷基”為烷基經一個芳基取代。芳烷基 之一個實例為苯甲基。 本文中所用之”環烷基”為例如3至8個碳原子之脂族環。 環烷基之實例包括環丙基及環己基。 本文中所用之”醯基”為直鏈或分支之烷基_〇(=〇)_基或 甲酿基。酿基之實例包括燒Si基(例如具有1至6個碳原子於 -15- 本紙張尺度適财® ®家標準(CNS) A4規格(21GX 297公釐)
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1293301 A7 B7 __ 五、發明説明(13 ) 燒基中)。乙酿基及二甲基乙酿基為酿基之實例。酿基可經 取代或未經取代。 本文中所用之”胺基甲醯基”為具有H2N-C〇2·結構之基。 ,,烷基胺基甲醯基”及”二烷基胺基甲醯基”表胺基甲醯基之 氮分別接有一或二個烷基替代氫。相似地,’’芳基胺基甲醯 基"及’,芳基烷基胺基甲醯基’’包括一個芳基替代一個氫,而 在後者,一個虎基替代第二個氫。 本文中所用之”羧基”為-COOH之基。 本文中所用之”烷氧基”為烷基_0·之基,其中Γ烷基」如 上述定義。 本文中所用之”烷氧基烷基”為如上述定義之烷基具有一 個氫經一個如上述定義之烷氧基替代。 本文中所用之”鹵素”或”鹵”為氟,氯,溴,或碘。 本文中所用之”雜環基”為一個5至約10員環結構,其中 環中一或多個原子為一個非碳之元素,例如Ν,〇,S。雜 環基可為芳族或非芳族,即可為飽和,或可部份或完全未 飽和。雜環基之實例包括吹淀基,咪峻基,吱喃基,,塞吩 基,〃塞嗤基,四氫吱喃基,四氫旅喃基,嗎淋基,硫嗎淋 基,W嗓基,4丨嗓淋基,異4丨嗓淋基,六氫π比咬基,喊淀 基,六氫ρ比0井基,異崎嗤基,異今嗅淀基,四吐基,及苯 并咪唑基。 本文中所用之”經取代之雜環基”為一個雜環基中一或多 個氫經取代基如烷氧基,烷氧胺基,二烷基胺基,烷氧羰 基,胺基甲醯基,氰基,鹵,三鹵甲基,羥基,羰基,硫 -16- 本紙張尺度適用中國國家標準(CNS) Α4規格(210X 297公釐)
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1293301 A7 B7 五、發明説明(14 ) 羰基,羥基烷基,或硝基替代。 本文中所用之”羥基烷基”為烷基經一個羥基取代。 本文中所用之”胺磺醯基”具有結構-S(0)2NH2。”烷基胺 磺醯基”及”二烷基胺磺醯基”表胺磺醯基中氮分別接有一或 二個烷基以替代氫。相似地,”芳基胺磺醯基”及”芳基烷基 胺磺醯基”包括一個芳基替代一個氫,而在後者,一個烷基 替代第二個氫3 本文中所用之”拮抗劑”為一種結合於一個受體而未活化 該受體之分子。其與内生性配位體競爭結合位置,因此減 少内生性配位體刺激該受體之能力。 在本發明中,一種”選擇性拮抗劑”為一種結合於一特定 亞型腺甞受體之親和力較結合於其他腺甞受體亞型高之拮 抗劑。例如,本發明之拮抗劑對於Αι受體具有高親和力及 選擇性,(a)對於八1受體具有奈莫耳(nanomolar)結合親和 力,及(b)對於Αι受體亞型之親和力較任何其他受體亞型 之親和力大至少10倍,更佳5 0倍,及最佳至少100倍。 本文中所用之’’醫藥有效量”為可有效治療或預防一種以 腺甞濃度增加及/或對於腺甞敏感性增加為特徵之症狀之 量。本文所用之術語”病人”為一種哺乳類,包括人類。 本文中所用之”醫藥可接受之載劑或佐劑”為一種無毒性 之載劑或佐劑,可與本發明之一種化合物一起施用於動物 而不破壞該化合物之藥理學活性。 一般而言,本發明係關於腺芬Αι受體之有效及選擇性拮 抗劑。本發明化合物之實例述於下表1中。本發明所教導之 -17- 本紙張尺度適用中國國家標準(CNS) A4規格(210X 297公釐) 1293301 A7 B7 五、發明説明(15 ) 化合物對於鼠A1受體之IC50在約7至約1095之範圍内。 腺答拮抗劑化合物之合成 本發明化合物可以許多已知方法製備。例如,這些化合 物可以 Suzuki,F· et al. J· Med. Chem. 1992, 35, 3581-3583 及 /或 Shimada,J; Suzuki, F. Tetrahedron Lett. 1992, 33, 3151-3154中所教導之方法製備。 三種製造本發明化合物之一般合成概圖如下述。 -18- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1293301 A7 B7
1293301 A7 B7
1293301 A7 B7 五、發明説明(18 ) 方法3之一般概圖
熟習技藝人士可明瞭,上述合成概圖並未包含可合成本 案所述及申請專利化合物之所有方式。其他方法為熟習技 藝人士顯而易知。 腺苷拮抗劑化合物之用途 A1亞型腺荅受體之活化激發許多生理反應,包括腎血流 減少,絲球體過濾速率降低,及腎中鈉再吸收增加。A1腺 甞受體之活化亦降低心跳速率,降低傳導速率,及降低收 縮力。這些,及其他器官中A1腺荅受體活化之其他作用, 為正常調節過程。然而,這些作用在許多疾病中變為病 -21 - 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1293301 A7 B7 五、發明説明(19 ) 理。因此,A 1腺甞受體拮抗劑廣泛應用於疾病之預防及治 療。可以A1腺甞受體拮抗劑預防及/或治療之疾病包括A1 腺甞受體之活化在病理生理學中居要角之疾病及達常。該 等疾病及達常包括,但不限於,充血性心臟衰竭;呼吸疾 病(例如支氣管氣喘,過敏性肺病);及許多需要利尿治療 之疾病(例如急性及慢性腎衰竭,腎功能不足,高血壓)。 另外,本發明提供施用高選擇及有效之腺甞A1受體拮抗 劑以激發例如利尿反應(在單獨施用時)及加強對於傳統利 尿劑之利尿反應。此外,A1腺甞受體拮抗劑與傳統利尿劑 之施用可減少傳統利尿劑所引發之絲球體過濾速率之降 低。其在治療例如水腫症狀如充血性心臟衰竭及水腹中有 用。 腺#拮抗劑化合物之施用 化合物可施用於動物(例如哺乳類,如人類,非人類之靈 長類,馬,狗,牛,豬,綿羊,山羊,小鼠,大鼠,天竺 氣,兔,倉鼠,沙鼠,白鼬,蜥蜴,爬蟲類,或烏類)。化 合物可以任何適合醫藥化合物施用之方式施用,包括,但 不限於,藥丸,錠,膠囊,氣溶膠,栓劑,食用或注射用 之液體調配物,或眼或耳滴液,食物補充物,及局部製 劑。化合物可經口,經鼻内,經皮,經皮内,經陰道,經 耳内’經眼内,經頰,經直腸,經黏膜,或經吸入,植入 (例如以外科手術),或經靜脈内施用。 化合物可選擇性與一種非腺甞修飾之醫藥組合物連合(例 如與一種非腺菩修飾之利尿劑組合,例如1999年4月23日
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-22- 1293301 A7 B7 五、發明説明(20 ) 申請之共同審理之申請案PCT/US99/08879中所述)施用。 醫藥紐公物 A1腺嘗受體拮抗劑可調配成施用於動物(包括人類)之醫 藥組合物。這些醫藥組合物較佳包括A i腺答受體拮抗劑之 量可有效減少血管收縮或增進肺血液動力學及一種醫藥可 接受之載劑。 可用於這些醫藥組合物中之醫藥可接受載劑包括例如離 子交換劑,氧化鋁,硬脂酸鋁,卵磷脂,血清蛋白,如人 類血清白蛋白,緩衝物質,如嶙酸鹽,甘胺酸,山梨酸, 山梨酸鉀,飽和植物脂肪酸之部份甘油酯混合物,水,鹽 或電解質,如硫酸魚精蛋白,磷酸氫二鈉,磷酸氫卸,氯 化鈉,鋅鹽,膠體矽石,三矽酸鎂,聚乙晞基吡咯啶酮, 纖維素物質,聚乙二醇,羧甲基纖維素鈉,聚丙烯酸酯, 蠕’聚乙婦-聚乳丙婦-嵌段聚合物,聚乙二醇,及羊毛 脂。 本發明之組合物可以非經腸,經口,由喷灑吸入,經局 部,經直腸,經鼻,經頰,經陰道,或經一個植入貯存器 施用。本文中所用之術語,,非經腸”包括經皮下,經靜脈 内,經肌肉内,經關節内,經滑膜内,經胸骨内,經鞘 内,經肝内,經損傷内及經顱内注射或注入技術。組合物 較佳經口,經腹膜内,或經靜脈内施用。 本發明組合物之滅菌注射形式可為水或油懸浮液。這些 懸浮液可根據此技勢中已知之技術使用適合分散或潤濕劑 及懸浮劑調配。诚菌之注射製劑亦可為一種滅菌之注射溶 -23 - 本紙張尺度適用中國國家標準(CNS) A4規格(210X 297公董j ----- 裝 訂
1293301 A7 B7 五、發明説明(21 ) 液或懸浮液於一種無毒非經腸可接受之稀釋劑或溶劑中, 例如於1,3 - 丁二醇中之溶液。可使用之可接受媒液及溶劑 為水,Ringer氏溶液,及等張氣化鈉溶液。此外,習知使 用滅菌之固定油(fixed oils)作為溶劑或懸浮介質。為此目 的,可使用任何品牌之固定油,包括合成之一或二酸甘油 酉曰。脂肪阪,如油酸,及其甘油醋衍生物可用於注射製劑 中’如天然之醫藥可接受油,如橄禮油或蔑麻油,特別是 其聚氧乙基化形式。這些油溶液或懸浮液亦可含有一種長 鏈醇稀釋劑或分散劑,如羧甲基纖維素,或普遍用於醫藥 可接受劑形(包括乳液及懸浮液)之調配物中之相似分散 劑。其他普遍使用之表面活性劑,如Tweens,Spans,及其 他普遍用於醫藥可接受之固體,液體,或其他劑形之製造 中之乳化劑或生物利用增進劑亦可用於調配。 非經腸調配物可為單一巨(bolus)劑,輸液,或一負載 (loading)巨劑接著一種維持劑。這些組合物可以每天一次 或以”需要”基準施用。 本發明之醫藥組合物可以任何經口可接受之劑形,包括 膠囊,錠,水懸浮液或溶液,經口施用。在經口施用之錠 中,普遍使用之載劑包括乳糖及玉米澱粉。典型亦加入潤 滑劑,如硬脂酸鎂。對於經口施用之膠囊形式,可用之稀 釋劑包括乳糖及乾燥之玉米澱粉。當需要以水懸浮液經口 施用時,活性成份與乳化及懸浮劑組合。若需要,亦可加 入某些甜化劑’調味劑,或著色劑。 或者,本發明之醫藥組合物可以經直腸施用之栓劑形式 -24- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1293301 A7 B7 五、發明説明(22) 施用。這些可由該劑與一種在室溫為固體但在直腸溫度為 液體(因此在直腸中溶解而釋放藥物)之適當無刺激性賦形 劑混合而製備。該等物質可包括可可脂,蜂壤,及聚乙二 醇。 本發明之醫藥組合物亦可局部施用。局部施用可以一種 直腸栓劑調配物(參見上述)或以一種適合之灌腸劑調配物 進行。亦可使用局部經皮貼片。 對於局部施用,醫藥組合物可調配成一種含有活性成份 懸浮於或溶於一或多種載劑中之適當軟膏。供局部施用本 發明化合物之載劑包括礦油,液體石壤脂,白色石蟻脂, 丙二醇,聚氧乙烯,聚乙丙埽化合物,乳化蠟,及水^或 者’醫藥組合物可調配成適當洗劑或乳劑,含有活性成份 懸浮於或溶於一或多種醫藥可接受之載劑中。適合之載劑 包括,但不限於,礦油,一硬脂酸山梨糖醇酐酯,聚山梨 酸酉旨60 ’鯨蟻醋蟻’踪蟻芳基(cetearyi)醇,2-辛基十二 醇,苯甲醇,及水。 對於眼睛使用,醫藥組合物可調配成微粒子化懸浮液於 等張之p Η經調節之滅菌鹽水中,或較佳調配成溶液於等張 之ρ Η經調節之減菌鹽水中,有或無防腐劑,如氯化苯甲烴 銨(benzylalkonium)。或者,對於眼睛使用,醫藥組合物可 調配呈軟膏,如蟻膏。 本發明之醫藥組合物可以鼻氣溶膠或吸入施用。該組合 物係根據醫藥調配物技藝中眾所周知之技術製備,可製備 成落液於鹽水中,使用苯甲醇或其他適合防腐劑,吸收促 '25 - ^紙張尺度適用中國國家標準(CNS) A4規4(210X297公董) 1293301 A7 ______B7 ___ 五、發明説明(23 ) 進劑以增進生物可利用性,氟碳,及/或其他習知助溶或分 散劑。 A χ腺芬受體拮抗劑與載劑物質組合以產生單一劑形之量 將依所治療之宿主及特定施用方式變化。該組合物可調配 成0.01 -100毫克A i腺荅受體拮抗劑/公斤體重之劑量施用於 接受該組合物之病人。在本發明之一些具體實施例中,該 劑量為〇·1-10毫克/公斤體重。該組合物可以單劑,多劑施 用,或以注入施用一定時間。 任何特定病人之特定劑量及治療方法將依各種因素而 定,包括特定之八1腺甞受體拮抗劑,病人之年齡,體重, 一般健康,性別,及食物,以及施用時間,排池速率,藥 物合併,及所治療之特定疾病之嚴重性。醫藥人員判斷該 等因素係在熟習技藝人士之範圍内。拮抗劑之量亦依所治 療之各病人,施用途徑,調配物之種類,所用化合物之特 性,疾病之嚴重性,及所欲效果而定。拮抗劑之量可由此 技藝中眾所周知之藥理學及藥物動力學原則決定。 為使本文中所述之本發明可被更完全明瞭,提供下列實 例。應明瞭,這些實例僅用於例示,並非以任何方式限制 本發明。 實例 實例1 化合物 l,2,4,8,9,ll,12-2l,24,27,28,3l 及32係根據下列方法使用適當胺基醇於步驟5中而製備。 製備化合物所用之胺基醇為:(R)_2-胺基-3 -甲基-1 _ 丁醇 -26 - 本紙張尺度適用中S @家料(CNS) A4规格(21GX 297公1) 1293301 A7 _______B7 五、發明説明(24 ) (化合物1) ; (R)-2-胺基-1-丁醇(化合物2) ; (R)-2-胺基· 1- 丙醇(化合物4) ; (R)-異白胺基醇(化合物8) ; 胺 基-1-丁醇(化合物9) ; (R)-2-胺基-1-戊醇(化合物u); (S ) -1 -胺基-2 -丙醇(化合物1 2 );( R ) - 2 -胺基-2 -苯乙醇 (化合物13) ; (R)-l-胺基-2-丙醇(化合物14) ; (s)_異白 胺基醇(化合物15) ; (R)-2-胺基-3,1-二甲基-丁醇(化 合物16),(R)-2 -胺基-4-甲基-戊-1-醇(化合物17) ; (r)_ 2- 胺基-3-苯基-丙-1-醇(化合物18) ; (R)-2 -胺基-己-1-醇(化合物19) ; 3-胺基丙醇(化合物20) ; 2-胺基乙醇(化 合物21) ; (S)_2-胺基-己-1-醇(化合物24) ; 4-胺基丁醇 (化合物27) ; (R)-4-(2-胺基-3-羥基-丙基)-酚(化合物 28),(R)-3 -胺基-丁-1-醇(化合物31);及(R)-3-胺基· 戊-1 -醇(化合物3 2)。 表1顯示所合成化合物之結構,合成化合物所用之方法, 及化合物之質譜數據。 步驟1 ·· 5,6-二胺墓-1-丙基-1^1-。密淀-2,4-二嗣1|酸鹽: 起始物質6 -胺基-1-丙基-1H -嘧啶-2,4 -二酮係根據已知 之文獻程序(J. Med. Chem. 1989,ρ· 1231)製備。此物質 (8.5克,50毫莫耳)溶於250毫升醋酸水溶液中,然後於冰 浴中冷卻。亞硝酸鈉(4.14克,1.2當量)於10毫升水中之溶 液加入歷約1 5分鐘β在約1 0分鐘後,淡黃色溶液開始由反 應混合物沉澱出。固體以過濾收集,在真空下乾燥過夜, 獲得8.0克亞硝基中間物。 亞硝基中間物(6.0克,30毫莫耳)懸浮於100亳升水中, -27- 本紙張尺度適用中國國家標準(CNS) Α4規格(210 X 297公釐) 1293301 A7 _____ B7 _____ 五、發明説明(25 ) 加熱至80-85。(:。二亞硫磺酸鈉(15·8克,3·0當量)迅速加 入歷約5分鐘。在約5分鐘後,加熱源移除,淡綠色反應混 合物冷卻至室溫,然後於冰浴中冷卻。固體以過濾收集, 在真空下乾燥,獲得二胺基尿嘧啶。然後由溶於1〇毫升 Η2〇含有1.5當量HC1中轉化為鹽酸鹽,然後冰凍乾燥。 免览g ·· 8 -丄4 ·羥基-繫瑷[2 · 2 · 21辛-1 -某)-3 -丙基-3 · 7 -二 氣-嗜今- 2·6 -二g同 5,6 -二胺基-1-丙基qH -嘧啶-2,4-二酮鹽酸鹽(3.4克)與 4-羥基-雙環[2.2.2]辛-1-羧酸(2·5克,15毫莫耳)溶於80 毫升DMF中。HATU(5.9克,1.05當量)加入,然後 Ε“Ν(8·30毫升,4.05當量)加入《生成之反應混合物在室 溫攪拌過夜。反應混合物過濾以移除一些沉澱物。滤液在 減壓下濃縮。生成之殘餘物溶於60毫升Η20含有1〇當量 NaOH(5.9克)中。反應混合物在回流下攪拌1小時,冷卻至 室溫’以濃HC1酸化至ρ Η 2。生成之沉殿物以過遽收集, 乾燥,獲得1.85克黃嗓吟(xanthine)衍生物。 步驟3 : 8-(4-羥基-雙環丨2.2.21辛-1-某)-3-丙基砝其-1,3,6,7 -四氮-嗓吟- 2- S同 8-(4·羥基-雙環[2.2.2]辛-1-基)-3 -丙基-3,7-二氫-嘌 呤-2,6-二酮(500毫克,1.57毫莫耳)溶於10毫升吡淀中。 P4S1G(1.05克,1.5當量)加入,反應混合物在回流下授拌6 小時。然後反應混合物冷卻至室溫,以5毫升Η 2 〇緩慢淬 火。然後混合物在〇 °C以6Ν HC1酸化至ρ Η 5。水層以 EtOAc萃取。合併之有機層乾燥(Na2S04),在減壓下濃 -28 - 本紙張尺度適用中國國家擦準(CNS) A4規格(210 X 297公釐) 1293301 A7 B7 五、發明説明(26 ) 縮。以製備性HPLC純化,獲得100毫克標題化合物。 步騾4 : 8-M-羥基·雙環丨2·2·21辛-1-基甲某硫基 (sulfanvl)-3 -丙矣-3,7 -二氪-嘌呤-2 -酉同 8-(4 -羥基-雙環[2.2· 2]辛-1-基)-3 -丙基-6-硫基-1,3,6,7-四氫-嘌吟-2-酮(120毫克,0.36毫莫耳)懸浮於3 毫升H20及1.5毫升EtOH中。NaOH於0.4毫升H20中之溶 液加入,然後M e I加入。反應混合物在室溫擾拌1小時。然 後以0·1Ν HC1中和,以CHC13萃取。合併之有機層乾燥 (NadCU),在減壓下濃縮,獲得實質上定量之標題化合 物。 步驟5 : 8-(4-韃基-雙環Γ2·2·2〗辛-1-篡•鞀某甲某· 丙基胺基)-3 -丙基-3,7 -二氣-嗓吟-2 -嗣 8-(4-羥基-雙環[2·2·2]辛-1-基)-6-甲基硫基-3 -丙基-3,7-二氫-嗜呤-2-酮(125毫克,0.36毫莫耳)與過量之適當 胺基醇(例如(R)-(-)-2-胺基-1_丁醇(〇.24毫升,7當量), 對於化合物2)溶於3毫升DMSO中。生成之反應混合物在 150 °C攪拌3小時。然後冷卻至室溫,以製備性HPLC純 化,獲得110毫克標題化合物。 步驟6 : 7 -乙基- 2- (4 -經基-雙環丨2·2·2]辛-1-某、-4-丙基· 1,4,6,7-四氮- l,3,4,5a,8-五氮.雜-艾斯(as、-印達辛 (indacenK5- _(化合物 2) 8-(4-羥基-雙環[2·2·2]辛-1·基)-6-(1_羥基甲基-丙基 胺基)-3 -丙基-3,7 -二氫-嘌吟-2-酮(11〇亳克)溶於3毫升 S0C12中,在回流下授拌20分鐘。然後冷卻至室溫,濃 -29- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1293301 A7 -— —____ B7 _____ 五、發明説明(27 ) 縮 殘餘物以飽和NaHC03水溶液淬火,以CHCI3萃取。合 併之有機層乾燥(Na2S04),在減壓下濃縮。以製備性HPLC 純化’獲得5 0毫克標題化合物,呈TF A鹽。 化合物3,5及7係根據下列方法使用適當胺基醇於步驟8 中而製備。製備化合物所用之胺基醇為:(r)-2-胺基-1-丁 醇(化合物3) ; (R)-2-胺基-3-甲基-1-丁醇(化合物5);及 (R)-2-胺基-1-丙醇(化合物7)。 表1顯示所合成化合物之結構,合成化合物所用之方法, 及化合物之質譜數據。 受^1^_4-(2.6-二氣基-3-丙某-2,3,6,7-四氪-111-嘌呤- ^41^環『2.2.21夺-1-#酸 5,6-二胺基-1-丙基-1H-嘧啶-2,4-二酮鹽酸鹽(570毫克) 與雙環[2·2·2]辛-1,4-二羧酸一甲酯(520毫克,2.45毫莫 耳)溶於20毫升DMF中。HATU(980毫克,1·05當量)加 入,然後Et3N(1.40毫升,4.05當量)加入。生成之反應混 合物在室溫攪拌過夜。次日早上,反應混合物過濾以移除 一些沉澱物。濾液在減壓下濃縮。生成之殘餘物溶於1 0毫 升H2〇含有1〇當量NaOH (980毫克)中。反應混合物在回流 下攪摔2小時。然後冷卻至室溫,以濃HC1酸化至p Η 2。生 成之沉澱物以過濾收集,乾燥,獲得680毫克上述酸衍生 物0 步驟2 : 8-(牡淼某甲基-雙瑷[2·2·21辛-1·某V3-丙基-3,7-二氮,-嗓呤-2,6-二酮 -30 - 本紙張尺度適用中國國家標準(CMS) Α4规格(210 X 297公釐) 1293301 A7 B7 五、發明説明(28) 4-(2,6·二氧基-3 -丙基-2,3,6,7-四氫-lH-嘌呤-8-基)-雙環[2·2·2]辛-l-羧酸(3·2克,9·25毫莫耳)溶於l00毫升 無水THF中,冷卻至0°C。硼烷_THF(1.0M於THF中,1.85 毫升,2當量)加入,反應混合物在〇°C攪拌10分鐘,然後 加熱至室溫,攪拌4 8小時。然後反應混合物以1 0毫升 MeOH小心地淬火,然後在減壓下濃縮。生成之殘餘物溶 於20亳升MeOH中,在減壓下濃縮。重複此處理四次,獲. 得所欲醇。 步驟3:4^2.6-二氫基-3-丙基-2,3,6,7-四氣-1{1-嘌呤-8 -基)-繫環f 2.2.21辛-1 -浚醛 8-(4-羥基甲基-雙環[2·2·2]辛-1-基)-3 -丙基- 3,7 -二 氫-嘌呤-2,6-二酮(2.70克,8.13毫莫耳)溶於40毫升DMSO 中。吡啶-S03(3.88克,3當量)加入,然後Et3N(7.4毫升, 7當量)在室溫加入。生成之反應混合物在室溫攪拌1 8小 時。然後以EtOAc稀釋,以5%檸檬酸水溶液,H20,鹽水 洗,乾燥(Na2S04),在減壓下濃縮,獲得900毫克所欲醛。 步驟4 : 3-Γ4“2·6-二氣基-3 -丙某 吟-8 -基)-雙環Γ 2.2.2 1辛-1 -某-1 -丙烯酸甲酯 4-(2,6-二氧基-3-丙基-2,3,6,7-四氫-111-嘌呤-8-基)-雙環[2.2.2]辛-1-羧饉(900毫克,2.73亳莫耳)溶於25毫升 THF中,(三苯基亞正膦基(phosphoranylidene))醋酸甲酯 (1.83克,2當量)加入。生成之反應混合物在回流下攪摔18 小時。然後冷卻至室溫,以製備性HPLC使用乙腈水溶液之 混合物純化,獲得300毫克所欲產物。 -31 - 本紙張尺度適用中國國家標準(CNS) A4規格(210X 297公釐)
裝 訂
k 1293301 A7 B7 五、發明説明(29) 步驟5 ·· 3-『4-Γ2·6-二氣某-3-而篡-2,3,6,7-四氤-11嘌 吟二8-基)-雙環『2.2.21辛-1-盔卜兩酸甲酯 3-[4-(2,6-二氧基-3-丙基-2,3,6,7-四氫-1^1-嘌呤-8-基)-雙環[2,2.2]辛-1-基卜丙烯酸甲酯(300毫克)溶於20毫 升THF中。10% Pd/C(25毫克)加入,生成之反應混合物在 50 psi之Η]下於室溫氫化6小時。反應混合物經Celite過 濾,濾液在減壓下濃縮,獲得280毫克所欲產物。 步—_驟6:3-『4-(2-氧基-3-雨甚-6-硫基-2,3,6,7-四&-111-嗟吟-8-基)-雙環〖2.2.21辛-1-某1-丙酸甲酯 3-[4-(2,6-二氧基-3-丙基-2,3,6,7-四氫-111-嘌呤-8-基)-雙環[2·2·2]辛-1-基卜丙酸甲酯(250毫克,0.64毫莫 耳)溶於8毫升吡啶中。p4s1〇(430毫克,1.5當量)加入,反 應混合物在回流下攪拌3小時。然後冷卻至室溫,以3毫升 KUO淬火,然後以充份6N只^使#至3。生成之反應混合 物以CHCI3萃取。有機層乾燥(Na2S〇4),在減壓下濃縮。祖 殘餘物以製備性HPLC純化,獲得1〇〇毫克所欲產物。 ϋ 7. : 3 -『4 - ( 6 -甲幕硫基(suifanvi)-3 -丙某-3,7 -二氣-2K-嗜呤-8·基雙環『2·2·21辛-1-基丙酸甲酯 3-[4-(2·乳基-3-丙基-6-硫基- 2,3,6,7-四氯-lH-嗓呤- 8-基)-雙環[2·2·2]辛-l-基]-丙酸甲酯(loo毫克)溶於2毫 升EtOH及1毫升Η2〇中。NaOH(20毫克)於1毫升η2〇中之 溶液加入,然後Mel(23微升,1.5當量)加入。生成之反應 混合物在室溫攪拌3 0分鐘。然後以EtOAc萃取。有機層乾 燥(NajO4) ’在減壓下濃縮,獲得1〇5毫克標題化合物。 -32- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐)
裝 訂
1293301 A7 B7 五、發明説明(30 )
步驟8 : 3-{4>丨6-(1-羥基甲基-丙某胺基)-2-氫某-3-丙墓-3,7-二氪-211-嘌呤-8-基卜雙環『2.2.21辛-1-基卜丙酸甲 IL 3-[4-(6 -甲基硫基-2 -氧基-3 -丙基- 3,7 -二氫- 2H -嗓吟· 8-基)-雙環[2·2·2]辛-1-基]-丙酸甲酯(1〇5毫克)與一種適 當胺基醇(例如160微升(R)-(-)-2-胺基-1-丁醇,對於化合 物3)溶於2毫升DMSO中。反應混合物在150°C攪摔3小時。 然後冷卻至室溫,以製備性HPLC純化,獲得5 0亳克標題 化合物。 步騾9:3-『4-(7-乙基-5-氣某-4_丙基-4,5.6,7-四1-111-l,3,4,5a,8-五氤,雜-艾斯(as) -印逵辛(indaceip-2 -基繫 環f 2.2.21辛-1-基卜丙酸(化合物3、 3-{4-[6-(1-羥基甲基-丙基胺基)-2-氧基-3 -丙基-3,7-二氫-2Η -嘌呤-8 -基]-雙環[2.2.2】辛-1-基卜丙酸甲酯(30 毫克)溶於1毫升S0C12中,在回流下攪捽1 5分鐘。然後反 應混合物冷卻至室溫,在減壓下濃縮。生成之殘餘物溶於 含有1毫升水,0·5毫升MeOH,及0.1毫升10% NaOH水溶 液之溶液中。反應混合物在室溫攪拌30分鐘。然後以稀1N HC1酸化至p Η 2,濃縮。生成之粗產物以製備性HPLC純 化,獲得標題化合物。 f例3 化合物6,10,22,23,25,26,29及30係根據下列 方法使用適當胺基醇於步驟3中而製備。製備化合物所用之 胺基醇為:2-胺基乙醇(化合物6) ; (R)-2-胺基-1· 丁醇(化 -33- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1293301 A7 __ B7 五、發明説明(31 ) 合物10) , (R)-2-胺基-1-丙醇(化合物22) ; (R)-2-胺基-1-戊醇(化合物23) ; (R)·異白胺基醇(化合物25) ; (s)_2-胺基-1-丁醇(化合物26) ; 3-胺基丙醇(化合物29);及4-胺基丁醇(化合物30)。表1顯示所合成化合物之結構,合 成化合物所用之方法,及化合物之質譜數據。 步-靂 1 : 4-(2,6-二氧基二3-丙某-2,3·6-7-四f-lH-嘌呤-8-基)-螯瑷『2.2.2〗辛-l-#醴甲醛 4-(2,6-二氧基-3-丙基-2,3,6,7-四氫-11^-嘌呤-8-基)- 雙環[2·2·2]辛-1-羧酸根據上述程序製備。此物質(1<4克) 懸浮於50毫升MeOH中,5滴濃硫酸加入。反應混合物在回 流下擾拌1 8小時。然後冷卻至室溫,在減壓下濃縮。生成 之殘餘物以CH2C12稀釋,以NaHC03水溶液,鹽水洗,乾燥 (Na2S04),濃縮,獲得1.2克標題化合物。 步—驟2 : 4-(6-甲基硫基(sulfanvlV2-氧葚-3-丙基-3,7-二 氫-2H-嘌呤-8-基雙環丨2.2.2Ί辜·1-勒酩τ酯 4-(2,6-二氧基-3-丙基-2,3,6,7-四氫-111-嘌呤-8-基)-雙環[2.2.2]辛-1-羧酸甲酯(1.2克,3.33亳莫耳)溶於20毫 升吡啶中。P4S1()(2.22克,1.5當量)加入,反應混合物在回 流下攪摔3小時。然後冷卻至0 °C,小心地以水淬火。充份 6N HC1加入以使p Η至5,反應混合物以CH2C12萃取。有機 層乾燥(Na2S04),濃縮,獲得860毫克硫酯衍生物。此物質 (860毫克,2·29毫莫耳)溶於5毫升EtOH及5毫升H20中。 NaOH(183毫克,2當量)於2毫升H2〇中之溶液加入,然後 Mel(213微升,1.5當量)加入。生成之反應混合物在室溫攪 -34- 本紙張尺度適用中國國家標準(CNS) A4規格(2说X 297公釐) 1293301 A7 _____B7 __ 五、發明説明(32 ) 拌30分鐘。然後以Et〇Ac萃取。有機層乾燥(Ν&5〇4),在 減壓下濃縮,獲得8〇〇毫克標題化合物。 竟·· 4 - f 6 - ( 2 -勒某-乙胺某、-2 -氲基-3 -而I - 3 · 7 -二氣-2ϋΐ·^-8-基卜雙璟[2·2·21辛-1-淼酩 4-(6 -甲基硫基-2 -氧基-3-丙基-3,7 -二氫- 2Η -嘌呤- 8-基)-雙環[2·2·2]辛-羧酸甲酯(5〇毫克)與一種適當胺基醇 (例如7當量2-胺基乙醇,對於化合物6)溶於2毫升DMSO 中。反應混合物在150 °C攪摔3小時。然後冷卻至室溫,以 製備性HPLC純化,獲得30毫克標題化合物。 童一^ 4 ·· 4-(5·氣某-4-丙某-4.5.6.7- 四翁 -ΙΗ- U,4,5 a,8 五孔雜-艾斯(as、-印遠辛(indacen) - 2 -華^ -雙 遂丄^.21辛-1-#酸 4-[6-(2-羥基-乙基胺基)_2_氧基-3 -丙基-3,7-二氫-2H-嗓呤-8-基]-雙環[2·2·2]辛-1-羧酸甲酯(30毫克)溶於1毫 升S0C12中,在回流下攪拌i 5分鐘ι然後反應混合物冷卻 至室溫,在減壓下濃縮◎生成之殘餘物溶於含有i毫升水, 0.5毫升MeOH,及〇·1亳升1〇% NaOH水溶液之溶液中。反 應混合物在室溫攪拌30分鐘。然後以稀IN HC1酸化至pH 2,濃縮。生成之粗產物以製備性HPLC純化,獲得標題化 合物。 實例4 分析方法 製備許多具有表1所示結構之黃嘌呤衍生物。一些化合物 對於鼠及人類腺甞A!受體之Ki值係根據下列結合分析方案 -35- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1293301 A7 B7 五、發明説明(33 ) 測定。 材料 腺荅去胺酶及HEPES係購自Sigma(St· Louis, MO)。漢氏 (Ham’s)F-12細胞培養基及胎牛血清係購自GIBCO Life Technologies (Gaithersburg, MD) 0 抗生素 G- 418,Falcon 150 mM培養板及Costar 12井培養板係購自Fisher (Pittsburgh, PA)。[3H]CPX 係購自 DuPont-New fengland Nuclear Research Products (Boston,MA)。青黴素/鍵徽素 抗生素混合物係購自Mediatech (Washington,DC)。 HEPES-緩衝之漢克氏(Hank、)溶液之組合物為:130 mM NaCl,5.0 mM Cl,1.5 mM CaCl2,〇·41 mM MgS〇4,〇·49 mM Na2HP04,0.44 mM KH2P〇4,5.6 mM 右旋糖(dextrose) ,及5 mM HEPES (pH 7.4)。 膜製備 鼠Ai受體:膜係由新鮮安逸死之鼠所分離之大腦皮質製 備。組織於緩衝液 A(10 mM EDTA,10 mM Na-HEPES, pH 7.4)補充蛋白酶抑制劑(l〇微克/毫升苯甲脒,100 PMSF,及各2微克/毫升之抑肽酶(aprotinin),胃酶抑素 (pepstatin),及亮肽素(leupeptin))中均質化,在20,000 xg 離心20分鐘。沉澱粒以緩衝液HE(10 mM Na_HEPES,1 mM EDTA,pH 7.4,加蛋白酶抑制劑)再懸浮及洗二次。 最終沉澱粒再懸浮於緩衝液HE補充1 0 % (重量/體積)蔗糖 及蛋白酶抑制劑中,等份冷凍於-8 0 °C。蛋白質濃度使用 BCA蛋白質分析套組(pierce )測量。 -36- 本紙張尺度適用中國國家操準(CNs) A4規格(210X 297公釐) 1293301 A7 B7 五、發明説明(34 ) 人類Ai受體:人類八1腺省:受體cDNA係由RT-PCR獲 得,次選殖於pcDNA3·l(InvitΓogen)。CHO-Kl細胞之穩定 轉感染係使用 LIPOFECTAMINE-PLUS(GIBCO-BRL)進 行,純系於1毫克/毫升G418中選擇,使用放射配位體結合 分析篩檢。對於膜製備,CHO-K1細胞於完全培養基(F 12 + 10% FCS+1毫克/毫升G418)中生長持單層,於PBS中洗, 於缓衝液A補充蛋白酶抑制劑中收穫。細胞均質化,離心 ,以上述之緩衝液HE洗二次。最終沉澱粒等份貯存於-80 °C 〇 放射配位體結合分析 膜(50微克膜蛋白質用於鼠AlARs,及25微克CHO-K1膜 蛋白質用於人類AlARs),放射配位體,及各種濃度之競爭 配位體以三組於0·1毫升緩衝液HE加2單位/毫升腺甞去胺 酶中在2 1 °C培育2.5小時。放射配位體[3H]DPCPX(112 Ci/毫莫耳得自NEN,最終濃度·· InM)用於AiARs之競爭 結合分析。非特異性結合係在10 // M BG9719存在下測量。 結合分析係以Whatman GF/C玻璃纖維濾器過濾,使用 BRANDEL細胞收穫器終止。濾器以3-4毫升冰冷之10 mM Tris-HCl,pH 7·4,及5 mM MgCl2在4°C沖洗三次。濾紙移 入一個小瓶中,加入3毫升閃爍混合物ScintiVersell(Fisher) 。放射活性係於一個Wallac /3 -計數器中計數。 結合數據之分析 對於Ki測定:競爭結合數據係配合一個單一位置結合模 型’並使用Prizm GraphPad作圖。使用Cheng-Prusoff方程 -37- 本纸張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1293301 A7 B7 五、發明説明(35) 式Ki = IC50/(l + [I]/KD)以由IC50值計算Ki值,其中Ki為 競爭配位體之親和力常數,[I]為自由放射配位體之濃度, Kd為放射配位體之親和力常數。 對於結合% :對於一點結合分析,數據係以1 # Μ競爭化 合物之總特異性結合%表示··總% = 1〇〇 * ( 1 # Μ競爭化合物 之特異性結合/總特異性結合)。結合%表在1 # Μ競爭拮抗 劑存在下結合之放射配位體之量。 結果 所有試驗化合物顯示鼠Αι之Ki值在約4至約800 ηΜ之 間。在表2中,顯示化合物之鼠Α1腺甞受體Ki值及結合 % 0 實例5 替代分析方法 材料 參見實例4。 細胞培養 穩定表現重組人類A! AdoR之CHO細胞(CHO : Ai AdoR 細胞)係如(Kollias-Barker et al·,J. Pharma. Exp. Ther· 281(2),761,1997)所述製備,及如CHO : Wild細胞培養。 CHO細胞在塑膠盤上於漢氏(Ham’s) F -12培養基補充10% 胎牛血清’ 100U青黴素G及100微克鏈黴素中在5% C02/ 95%空氣之濕氣壓下於37 °C培養呈單層。CHO細胞中 [3H]CPX結合位置之密度為26土 2(n = 4)fmol/毫克蛋白 質。在使用1 mM EDTA於不含Ca2 + -Mg2 +之HEPES緩衝之 -38 - 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1293301 A7 _B7_ __ 五、發明説明(36 ) 漢克氏(Hank’s)溶液中脫離後,細胞每星期次培養二次。 三個不同群落之CHO : Ai AdoR細胞用於實驗,所有結果 以二或三個群落之細胞確認。在這些細胞中Αχ AdoRs之密 度為4000-8000如〇1/毫克蛋白質,以[311]€?\特真性結合 之分析測定。 放射配位體結合 生長於150毫米培養皿上之CHO細胞以HEPES緩衝之漢克 氏(Hank、)溶液沖洗,然後以一個細胞刮取器移除,於冰 冷之50 mM Tris-HCl,pH 7.4中均質化。細胞膜係由細胞 均質液在48,000 xg離心1 5分鐘而形成沉澱粒。膜沉澱粒由 再懸浮於新鮮緩衝液中及離心而洗二次。最終沉澱物再懸 浮於小體積之50 mM Tris-HCl,pH 7.4中,1毫升之等份貯 存於-80°C直到分析使用時。 為測定CH0細胞膜中Ai AdoRs之密度,100微升等份之 膜(5微克蛋白質)與25°C與0.15-20 nM [3H]CPX及腺苷去 胺酶(2U/毫升)於100微升50 mM Tris-HCl,pH 7.4中培育 2小時。培育係以4毫升冰冷50 mM Tris-HCl緩衝液稀釋而 終止,膜立即以真空過滤(Brandel, Gaithersburg,MD)收集 於玻璃纖維遽器(Schleicher and Schuell,Keene,NH)上。滤 器以冰冷緩衝液迅速洗三次以移除未結合之放射配位體。 含有捕捉膜結合放射配位體之滤盤放入4毫升Scintiverse BD (Fisher)中,放射活性係使用一個液體閃爍計數器定 量。為測定非特異性結合之[3 Η ] CPX,膜如上述培育,10 # M CPT加入培育緩衝液中。非特異性結合係定義為在1〇 -39- 本紙張尺度適用中國國家標準(CNS) Α4規格(210X 297公釐) 1293301 A7 B7 五、發明説明(37 ) /z M CPT存在下結合之[3H] CPX。放射配位體特異性結合 於A1 AdoR係由總結合扣除非特異性結合而測定。發現非 特異性結合隨[3 Η ] CPX濃度之增加而呈線性增加。三組分 析以[3H]CPX之各試驗濃度進行。 為測定A i AdoR之拮抗劑對於CHO細胞中所表現之人類 重組Ai AdoR之親和力,在增加濃度之拮抗劑存在下測量2 nM [3H]CPX之結合。等份之CHO細胞膜(100微升:5微克 蛋白質),[3H]CPX,拮抗劑(0.1 nM -100 i M),及腺甞去 胺酶(2U/毫升)在25°C於200微升50 mM Tris-HCl緩衝液中 (pH 7.4)培育3小時。分析係如上述終止。 其他具體實施例 應明瞭,雖然本發明已結合上述詳細說明作說明,但是 上述說明係用以例示,並非用以限制本發明之範圍,其範 圍係以下列申請專利範圍定義。其他方面,優點,及修飾 係在下列申請專利範圍内。 -40- 本纸張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1293301 A7 B7 五、發明説明(38 ) 表1 化合物 結構 ;合成方法j MS(M+1) 1 1 386 1 1 1 2 V 1 372 3 2 428 4 &令 1 358 5 2 442 6 3 372 -41 - 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1293301 A7 B7 五、發明説明(39 ) 化合物 5 結構 •合成方法 MS (M+-1) 7 2 414 8 。心^-Λ 1 400 9 1 356 10 3 400 11 1 386 12 Λϊί^- 1 358 -42 * 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1293301 A7 B7 五、發明説明(4〇 ) 化合物 結構 合成方法1 t MS(M^1) 13 〇 1 420 14 ..·,&鲁 H 1 358 15 1 400 16 %, 1 400 17 1 400 18 〇-νΝ - 1 434
裝 訂
線 -43-本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1293301 A7 B7 五、發明説明(41 ) 化合物 結構 ^ 合成方法1 MS(Mf1) 19 1 400 20 1 358 21 'V 1 .344 22 3 386 23 3 414 24 < 1 372 -44- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1293301 A7 B7 五、發明説明(42 ) 化合物 結構 {合成方法1 MS (M+1) 25 。丄 3 414 26 产 3 400 27 V 1 372 28 1 450 29 3 386 30 &鲁: 3 400 -45- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1293301 A7 B7 五、發明説明(43 )
裝 化合物 結構 {合成方法1 31 Λ 1 372 32 X 1 372 訂
k -46- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 1293301 A7 B7 五、發明説明(44 ) 表2 化合物號碼 Ki(nM) 結合% 化合物號碼 Ki(nM) 結合% 1 4.4 ND 17 166.7 ND 2 5.75 ND 18 708 ND 3 8.38 ND 19 ND 18.1 4 9.92 ND 20 ND 52.7 5 10.5 1.9 21 ND 12.2 6 ND 2.6 22 ND 24 7 13.7 2.5 23 ND 22.8 8 14.1 1 24 ND 11 9 26.7 0.1 25 ND 46.7 10 40.2 6.2 26 ND 41.1 11 43.2 3.7 27 ND 16.3 12 51.3 8.6 28 ND 36.3 13 68.3 ND 29 ND 81.8 14 68.5 7.8 30 ND 71 15 93 7.7 31 ND 40 16 155 ND 32 ND 61 -47- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐)
Claims (1)
1293多6Ui^29678號專利申請案 _^文申請專利範圍替換木(96车5月) 、申請專利範圍 一種下式I,之化合物: A8 B8 C8 D8 98· 5. 03!
式Γ 其中R!及R2獨立選自下列所組成之群: a)氫; 烷基,其為未經取代,或被一個苄基取代基官 能基化,其中該芊基係為未經取代或被一個羥基取代基 官能基化;及 c)苯基; R3係為 其為未經取代,或被一或多個選自下列所組成之取代基 官能基化:羥基、羰基-C ! . 6燒基友藥基; A 係為 _(CH2)m_(CH2)m ; m = 1或2 ;及 75281-960503.doc 本纸張尺度適用中國國家標準(CNS) A4規格(210X297公釐) A8 BB C8 D8 1293301 、申請專利範園 R 7係為c、- 6燒基。 2·根據申請專利範圍第1項之化合物,其中化合物係呈選自 非對掌性化合物,消旋物,光學活性化合物,純非對映 體’非對映之混合物,及藥理學上可接受之加成鹽所組 成之群之形式。 3·根據申請專利範圍第1項之化合物,其中Ri&r2係獨立 選自下列所組成之群: (a) Cr·6烷基,其為未經取代,或被一個苄基取代基官 能基化,其中該苄基係為未經取代或被一個羥基取代基 官能基化;及 (b) 苯基。 4.根據申請專利範圍第3項之化合物,其中Ri&r2中至少 一嗰為未經取代之Cle6烷基。 5·根據申請專利範圍第i項之化合物,其中m為1。 6.根據申請專利範圍第丨項之化舍物,其中化合物係選自表 1之化合物1 - 3 2 〇 7·根據申請專利範圍第6項之化合物,其中化合物係選自下 列所組成之群: 2-(4-羥基-雙環[2.2.2]辛-1 -基異丙基4 -丙基_ 1,4,6,7_四氫-1,3,4,5&,8-五氮雜_艾斯(&8)-印達辛 (indacen)-5-酮(化合物 1); 7_乙基-羥基_雙環[2·2·2]辛-1-基丙基_ 1,4,6,7_四氫-1,3,4,5&,8-五氮雜_艾斯(&3)-印達辛 (indacen)--5-酮(化合物 2); -2 - 75281-960503.doc 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) ——~ ——---- A8 B8 C8 D8 1293301 穴、申請專利範圍 3 - [ 4 - ( 7 _ 乙基-5 -氧基丙基 4,5,6,7 四氫-1 jj · 1,3,4,5&,8_五氮雜_艾斯(^)_印達辛(111如(^11)-2-基)· 雙%[2.2.2]辛-1-基]_丙酸(化合物3); 2- (4-羥基-雙環[2.2.2]辛-1-基)-7 -甲基-4 -丙基-1,4,6,7 -四氫_ l,3,4,5a,8 -五氮雜-艾斯(as)_印達辛 (indacen)-5-酮(化合物 4);及 3- [4-(7 -異丙基-5 -氧基-丙基_4,5,6,7 -四氫Vltj二 1,3,4,5 a,8 -五氮雜-艾斯(as)_ 印達辛(indacen)_2_ 基)· 雙%[2.2.2]辛-1-基]-丙酸(化合物5)。 8· —種用於治療病人顯示Al|苷受體活化作用為疾病或失 調原因之跡象或徵候之醫藥組合物,其包括醫藥有效量 之根據申請專利範圍第1項之化合物及醫藥可接受之載 劑、佐劑或媒液。 9·根據申請專利範圍第8項之醫藥組合物,另包含非腺芬修 飾劑。 10.根據申請專利範圍第8項之醫藥組合物,其中該組合物係 調配成經口、經靜脈内、經肌肉内或經皮下施用。 11_根據申請專利範圍第1 - 7項中任一項之化合物,其係用於 製造阻斷病人Ai腺苷受體之藥物。 12_根據申請專利範圍第1 - 7項中任一項之化合物,其係用於 製造用於治療或預防A1腺甞受體活化作用為疾病或失調 原因之病人疾病或失調之藥物。 13·根據申請專利範圍第8項之醫藥組合物,其中該疾^病 < 失 調係選自系統性高血壓、腎哀竭、糖尿病、氣喘、水腫 75281-960503.doc -3- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) " --- 1293301 六、申請專利範圍 A8 B8 C8 D8
症狀、充血性心臟衰竭及腎功能不良所組成之群。 14· 一種製備根據申請專利範圍第1項之化合物之方法,其包 含下列步驟: 八匕 a )將位於經雙環[2 · 2 · 2 ]辛_丨-基取代之嘌呤上之硫酉同 燒基化以產生硫醚; b)將該硫醚與經取代之胺基醇反應以產生醇中間物, 其中該經取代之胺基醇係以如申請專利範圍第1 ,中所定 義之Ri及r2取代;及 Ο將該醇中間物環化以產生環化產物。 15·根據申請專利範圍第1 4項之方法,其另包含下列步驟: a)將該環化產物轉化為幾酸衍生物。 16·根據申請專利範圍第15項之方法,其另包含下列步驟: a) 將二胺基尿嘧啶與雙環[2·2·2]辛—上仁二羧酸單甲 酉旨偶合以產生酸; b) 將該酸還原成對應醇; c) 將該醇氧化成酸; d) 將該駿:與(二苯基亞正膦基(phosphoroanyiidene))醋 酸甲酯偶合以產生偶合產物;及 e) 將該偶合產物轉化成為硫酮。 17.根據申請專利範圍第1 5項之方法,其另包含下列步驟: a) 將二胺基尿嘧啶與雙環[2 · 2 · 2 ]辛· 1,4 -二羧酸單甲 酯偶合以產生酸; b) 將該酸酯化成對應酯; 〇將該酯轉化以產生硫酮。 75281-960503.doc 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公嫠y A8 B8 C8 D8 1293301 六、申請專利範園 18.根據申請專利範圍第1 4項之方法·,其另包含下列步驟: a )將6 -胺基-1-丙基- ΙΗ-ρ密淀-2,4-二酬亞硝基化以產 生亞硝基中間物; b) 將該亞硝基中間物還原以產生對應之二胺基尿嘧 啶; c) 將該二胺基尿嘧啶轉化為胺鹽; d )將該胺鹽與4 -羥基-雙環[2.2.2 ]辛-1 -羧酸偶合以產 生偶合產物;及 e)將該偶合產物轉化為硫酮。 75281-960503.doc -5- 本紙張尺度適用中國國家標準(CNS) A4規格(210X297公釐)
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| WO2004074247A2 (en) * | 2003-02-19 | 2004-09-02 | Endacea, Inc. | A1 adenosine receptor antagonists |
| US20040229901A1 (en) * | 2003-02-24 | 2004-11-18 | Lauren Otsuki | Method of treatment of disease using an adenosine A1 receptor antagonist |
| RU2367442C2 (ru) * | 2003-04-25 | 2009-09-20 | Новокардия, Инк. | Способ нормализации мочеиспускания при нарушении функции почек |
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| CA2528385C (en) * | 2003-06-06 | 2011-03-15 | Endacea, Inc. | A1 adenosine receptor antogonists |
| CA2601032A1 (en) * | 2005-03-11 | 2006-09-21 | Aderis Pharmaceuticals, Inc. | Substituted 9-alkyladenines and the use thereof |
| US7795427B2 (en) * | 2006-02-14 | 2010-09-14 | New York University | Methods for inhibiting osteoclast differentiation, formation, or function and for increasing bone mass |
| AU2007235372A1 (en) * | 2006-04-06 | 2007-10-18 | Novacardia, Inc. | Co-administration of adenosine A1 receptor antagonists and anticonvulsants |
| MX2008014672A (es) | 2006-05-19 | 2009-03-09 | Abbott Lab | Derivados de alcano azabiciclico sustituidos con bicicloheterociclo fusionado activos en el sistema nervioso central. |
| JP2009540003A (ja) * | 2006-06-16 | 2009-11-19 | ノヴァカーディア,インク. | Aa1raの低頻度投与を含む腎機能の長期間にわたる改善 |
| WO2007150026A2 (en) | 2006-06-23 | 2007-12-27 | Incyte Corporation | Purinone derivatives as hm74a agonists |
| JP5584466B2 (ja) | 2006-06-23 | 2014-09-03 | インサイト コーポレイション | HM74a受容体アゴニストとしてのプリノン誘導体 |
| US20090197900A1 (en) * | 2007-03-29 | 2009-08-06 | Howard Dittrich | Methods of treating heart failure and renal dysfunction in individuals with an adenosine a1 receptor antagonist |
| WO2008121882A1 (en) * | 2007-03-29 | 2008-10-09 | Novacardia, Inc. | Improved methods of administration of adenosine a1 receptor antagonists |
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| US20130109645A1 (en) | 2010-03-31 | 2013-05-02 | The united States of America,as represented by Secretary,Dept.,of Health and Human Services | Adenosine receptor agonists for the treatment and prevention of vascular or joint capsule calcification disorders |
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| ES2152207T3 (es) * | 1989-10-20 | 2001-02-01 | Kyowa Hakko Kogyo Kk | Derivados condensados de la purina. |
| ATE178060T1 (de) | 1991-09-23 | 1999-04-15 | Univ Florida State | Darstellung von substituierten isoserinestern unter verwendung von metallalkoxiden und s- lactamen |
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| CZ20031513A3 (cs) * | 2000-12-01 | 2003-09-17 | Biogen, Inc. | Kondenzované purinové deriváty jako antagonisty A1 adenosinového receptoru |
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