JP2004043494A - 新規な化合物の製造方法 - Google Patents
新規な化合物の製造方法 Download PDFInfo
- Publication number
- JP2004043494A JP2004043494A JP2003317639A JP2003317639A JP2004043494A JP 2004043494 A JP2004043494 A JP 2004043494A JP 2003317639 A JP2003317639 A JP 2003317639A JP 2003317639 A JP2003317639 A JP 2003317639A JP 2004043494 A JP2004043494 A JP 2004043494A
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- JP
- Japan
- Prior art keywords
- methoxy
- methyl
- benzimidazole
- sulfinyl
- dimethyl
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 68
- 238000000034 method Methods 0.000 title claims description 13
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- 150000003839 salts Chemical class 0.000 claims abstract description 32
- 125000002252 acyl group Chemical group 0.000 claims abstract description 13
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Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
- C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
- C07D401/12—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a chain containing hetero atoms as chain links
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- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
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- A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
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Abstract
【解決手段】 式
【化1】
(式中、アシルはRまたはS−配置を有するマンデロイルのようなキラルアシル基を示す)のジアステレオマーエステルを分離しそして分離したジアステレオマーをアルカリ性溶液に溶解して、アシルオキシメチル基を加水分解して光学的に純粋な(−)−5−メトキシ−2−〔〔(4−メトキシ−3,5−ジメチル−2−ピリジニル)メチル〕スルフィニル〕−1H−ベンズイミダゾールのNa+、Mg2+、Li+、K+、Ca2+およびN+(R)4塩(式中、Rは1〜4個の炭素原子のアルキルである)を製造する。この化合物は胃酸分泌阻害用および胃腸炎症疾患治療用の医薬として有用であり、少ない個人間の差のような望ましい治療プロファイルを示す。
【選択図】 なし
Description
本発明の光学的に純粋な化合物、すなわち単一のエナンチオマーは、次の型の式IV
また、安定剤および(または)緩衝剤を含有することができそして種々な単位投与量のアンプルまたはバイアル中で製造することができる。非経口投与用の溶液は、使用前に即座に適当な溶剤で再構成される乾燥した製剤として製造することもできる。
本発明を、さらに以下の実施例によって説明する。
(+)−5−メトキシ−2−〔〔(4−メトキシ−3,5−ジメチル−2−ピリジニル)メチル〕スルフィニル〕−1H−ベンズイミダゾールナトリウム塩の製造
(−)−5−メトキシ−2−〔〔(4−メトキシ−3,5−ジメチル−2−ピリジニル)メチル〕スルフィニル〕−1H−ベンズイミダゾール((+)−異性体の3%で不純化された)100mg(0.3ミリモル)を、撹拌しながら2−ブタノン1mlに溶解した。5.0M水酸化ナトリウムの水溶液60μlおよびトルエン2mlを加えた。得られた混合物は非−均質であった。透明な溶液を得るために、さらに2−ブタノン(約1ml)を加えそして混合物を周囲温度で一夜撹拌した。形成した沈殿を濾去しそしてエーテルで洗浄した。白色の結晶として標記化合物51mg(46%)を得た。融点(分解)246〜248℃。キラルカラムクロマトグラフィーによって分析された光学純度(e.e.)は、≧99.8%であった。〔α〕D 20=+42.8°(c=0.5%,水)。
NMRデータは、以下に示される。
(−)−5−メトキシ−2−〔〔(4−メトキシ−3,5−ジメチル−2−ピリジニル)メチル〕スルフィニル〕−1H−ベンズイミダゾールナトリウム塩の製造
(+)−5−メトキシ−2−〔〔(4−メトキシ−3,5−ジメチル−2−ピリジニル)メチル〕スルフィニル〕−1H−ベンズイミダゾール((−)異性体の3%で不純化された)100mg(0.3ミリモル)を、撹拌しながら2−ブタノン1mlに溶解した。5.0M水酸化ナトリウムの水溶液60μlおよびトルエン2mlを加えた。得られた混合物は、非−均質であった。透明な溶液を得るために、さらに2−ブタノン(約1ml)を加えそして混合物を周囲温度で一夜撹拌した。形成した沈殿を濾去しそしてエーテルで洗浄した。白色の結晶として標記化合物56mg(51%)を得た。融点(分解)247〜249℃。キラルカラムクロマトグラフィーにより分析した光学純度(e.e.)は、≧99.8%であった。〔α〕D 20=−44.1°(c=0.5%,水)。
NMRデータは、以下に示される。
上記実施例1および2に示されているように、オメプラゾールから光学的に純粋なそのナトリウム塩を製造する場合には、(−)オメプラゾールからは(+)ナトリウム塩そして(+)オメプラゾールからは(−)ナトリウム塩が得られたようにその旋光性の方向は変化した。
(+)−5−メトキシ−2−〔〔(4−メトキシ−3,5−ジメチル−2−ピリジニル)メチル〕スルフィニル〕−1H−ベンズイミダゾールマグネシウム塩の製造
NaOHの0.1M溶液2.9mlを、(+)−5−メトキシ−2−〔〔(4−メトキシ−3,5−ジメチル−2−ピリジニル)メチル〕スルフィニル〕−1H−ベンズイミダゾール0.10g(0.29ミリモル)に加えた。この混合物に塩化メチレン2mlを加えそして分離漏斗中で混合した後、水溶液を分離した。水中のMgCl2 14mg(0.145ミリモル)を滴加した。形成した沈殿を遠心分離により単離しそして生成物52mg(50%)を、無定形の粉末として単離した。光学純度(e.e.)は98%であったそしてその結果出発物質と同じであった。光学純度は、分析キラルカラム上のクロマトグラフィーにより測定した。〔α〕D 20=+101.2°(c=1%,メタノール)。試料のMg含量は、原子吸収スペクトロスコピーによって3.0%であることが見出された。
(+)−5−メトキシ−2−〔〔(4−メトキシ−3,5−ジメチル−2−ピリジニル)メチル〕スルフィニル〕−1H−ベンズイミダゾールマグネシウム塩の製造
(−)−5−メトキシ−2−〔〔(4−メトキシ−3,5−ジメチル−2−ピリジニル)メチル〕スルフィニル〕−1H−ベンズイミダゾールナトリウム塩(0.500g,1.36ミリモル)を、水(10ml)に溶解した。この混合物に、MgCl2×H2O(138mg,0.68ミリモル)の水溶液10mlを滴加しそして形成した沈殿を遠心分離により単離した。白色の粉末として生成物418mg(86%)を得た。生成物の光学純度(e.e.)は99.8%であった。これは、出発物質の光学純度と同じである。光学純度は、分析キラルカラム上のクロマトグラフィーにより測定した。〔α〕D 20=+129.9°(c=1%,メタノール)
(−)−5−メトキシ−2−〔〔(4−メトキシ−3,5−ジメチル−2−ピリジニル)メチル〕スルフィニル〕−1H−ベンズイミダゾールマグネシウム塩の製造
(+)−5−メトキシ−2−〔〔(4−メトキシ−3,5−ジメチル−2−ピリジニル)メチル〕スルフィニル〕−1H−ベンズイミダゾールナトリウム塩(0.165g,0.45ミリモル)を、水(3ml)に溶解した。この混合物に、MgCl2×H2O(46mg,0.23ミリモル)の水溶液2mlを滴加しそして形成した沈殿を遠心分離により単離した。白色の粉末として生成物85mg(51%)を得た。生成物の光学純度(e.e.)は99.9%であった。これは、出発物質の光学純度と同じまたは良好である。光学純度は、分析キラルカラム上のクロマトグラフィーにより測定した。〔α〕D 20=−128.2°(c=1%,メタノール)
本発明による合成中間体の製造を、以下の実施例において記載する。
6−メトキシ−2−〔〔(4−メトキシ−3,5−ジメチル−2−ピリジニル)メチル〕−(R/S)−スルフィニル〕−1−〔(R)−マンデロイルオキシメチル〕−1H−ベンズイミダゾールの製造
水40ml中の水酸化ナトリウム3.4gの溶液を、硫酸水素テトラブチルアンモニウム14.4g(42ミリモル)および(R)−(−)−マンデル酸6.4g(42ミリモル)の混合物に加えた。混合物を、クロロホルム400mlで抽出した。分離後、有機抽出液を6−メトキシ−2−〔〔(4−メトキシ−3,5−ジメチル−2−ピリジニル)メチル〕スルフィニル〕−1−〔クロロメチル〕−1H−ベンズイミダゾールのラセミ体16.6g(42ミリモル)とともに加熱還流した。溶剤を蒸発し次いでジクロロメタン100mlおよび酢酸エチル700mlでうすめた。混合物を水3×200mlで洗浄しそして有機溶液をMgSO4上で乾燥しそしてそれから蒸発した。粗製物質を、アセトニトリル100mlからの再結晶により精製して、ジアステレオマー混合物として標記化合物8.1g(38%)を得た。
NMRデータは以下に示される。
6−メトキシ−2−〔〔(4−メトキシ−3,5−ジメチル−2−ピリジニル)メチル〕−(R/S)−スルフィニル〕−1−〔(R)−マンデロイルオキシメチル〕−1H−ベンズイミダゾールのより親水性のジアステレオマーの分離
実施例6における標記化合物のジアステレオマーを、逆相クロマトグラフィー(HPLC)を使用して分離した。ジアステレオマー混合物約300mgを熱アセトニトリル10mlに溶解し、これを、水性0.1M酢酸アンモニウムおよびアセトニトリル(70/30)の混合物10mlでうすめた。この溶液をカラムに注入しそして化合物を、水性0.1M酢酸アンモニウムおよびアセトニトリル(70/30)の混合物で溶離した。より親水性の異性体は、低い親水性の異性体よりも純粋に得ることが容易であった。純粋な異性体を含有するフラクションの処理操作は以下の通りである。ジクロロメタンによる抽出、5%炭酸水素ナトリウム水溶液による有機溶液の洗浄、Na2SO4上における乾燥および回転蒸発器上における溶剤の蒸発(蒸発の終りにおいて、アセトニトリルの除去は、さらにジクロロメタンを添加することにより容易にされる)。上述した技術を使用してジアステレオマー混合物1.2gを使用して、より親水性の異性体410mgが無色のシロップとして純粋な状態で得られた。
NMRデータは、以下に示される。
6−メトキシ−2−〔〔(4−メトキシ−3,5−ジメチル−2−ピリジニル)メチル〕−(R/S)−スルフィニル〕−1−〔(S)−マンデロイルオキシメチル〕−1H−ベンズイミダゾールの製造
実施例6におけると同じ操作を使用して、水100ml中の水酸化ナトリウム8.1g(202ミリモル)、硫酸水素テトラブチルアンモニウム34.4g(101ミリモル)、(S)−(+)−マンデル酸15.4g(101ミリモル)および6−メトキシ−2−〔〔(4−メトキシ−3,5−ジメチル−2−ピリジニル)メチル〕−スルフィニル〕−1−〔クロロメチル〕−1H−ベンズイミダゾールのラセミ体39.9g(101ミリモル)から生成物を得た。アセトニトリル100mlから再結晶して、ジアステレオマー混合物として標記化合物21.3g(41%)を得た。
NMRデータは、以下に示される。
6−メトキシ−2−〔〔(4−メトキシ−3,5−ジメチル−2−ピリジニル)メチル〕−(R/S)−スルフィニル〕−1−〔(S)−マンデロイルオキシメチル〕−1H−ベンズイミダゾールのより親水性のジアステレオマーの分離
実施例7において使用した(R)−マンデル酸エステルの代りに6−メトキシ−2−〔〔(4−メトキシ−3,5−ジメチル−2−ピリジニル)メチル〕(R/S)−スルフィニル〕−1−〔(S)−マンデロイルオキシメチル〕−1H−ベンズイミダゾールのジアステレオマー混合物を使用する以外は実施例7におけると同じ方法で逆相クロマトグラフィー(HPLC)を使用して、実施例8における標記化合物のジアステレオマーを分離した。ジアステレオマー混合物2.1gを使用して、より親水性の異性体760mgを、無色のシロップとして純粋な状態で得た。
NMRデータは、以下に示される。
(−)−5−メトキシ−2−〔〔(4−メトキシ−3,5−ジメチル−2−ピリジニル)メチル〕スルフィニル〕−1H−ベンズイミダゾールの製造
6−メトキシ−2−〔〔(4−メトキシ−3,5−ジメチル−2−ピリジニル)メチル〕スルフィニル〕−1−〔(R)−マンデロイルオキシメチル〕−1H−ベンズイミダゾールのより親水性のジアステレオマー0.23g(0.45ミリモル)を、メタノール15mlに溶解した。水0.45ml中の水酸化ナトリウム36mg(0.9ミリモル)の溶液を加えそして10分後に、混合物を蒸発器上で蒸発した。残留物を水15mlとジクロロメタン15mlとの間に分配した。有機溶液を水15mlで抽出しそして合した水溶液に、ギ酸メチル85μl(1.4ミリモル)を加えた。15分後に、混合物をジクロロメタン3×10mlで抽出した。有機溶液をNa2SO4上で乾燥しそしてそれから蒸発した。無色のシロップとして標記化合物0.12g(77%)を得た。キラルカラムクロマトグラフィーにより分析した光学純度(e.e.)は94%であった。〔α〕D 20=−155°(c=0.5%,クロロホルム)
NMRデータは、以下に示される。
(+)−5−メトキシ−2−〔〔(4−メトキシ−3,5−ジメチル−2−ピリジニル)メチル〕スルフィニル〕−1H−ベンズイミダゾールの製造
6−メトキシ−2−〔〔(4−メトキシ−3,5−ジメチル−2−ピリジニル)メチル〕スルフィニル〕−1−〔(S)−マンデロイルオキシメチル〕−1H−ベンズイミダゾールのより親水性のジアステレオマー0.76g(1.5ミリモル)を、メタノール50mlに溶解した。水1.5ml中の水酸化ナトリウム0.12mg(3.0ミリモル)の溶液を加えそして10分後に混合物を蒸発器上で蒸発した。残留物を水25mlとジクロロメタン25mlとの間に分配した。有機溶液を水25mlで抽出しそして合した水溶液に、ギ酸メチル200μl(3.2ミリモル)を加えた。15分後に、混合物をジクロロメタン3×25mlで抽出した。有機溶液を、Na2SO4上で乾燥しそれから蒸発した。無色のシロップとして標記化合物0.42g(81%)を得た。キラルカラムクロマトグラフィーにより分析した光学純度(e.e.)は98%であった。〔α〕D 20=+157°(c=0.5%,クロロホルム)
NMRデータは、以下に示される。
活性成分として本発明の化合物を含有する医薬製剤を、以下の処方において例示する。
活性物質1重量/容量%を含有するシロップを次の成分から製造した。
実施例2による化合物 1.0g
糖(粉末) 30.0g
サッカリン 0.6g
グリセロール 5.0g
風味剤 0.05g
エタノール(96%) 5.0g
蒸留水 100mlの最終容量を得るのに十分な量
糖およびサッカリンを温水60gに溶解した。冷後、活性化合物を糖溶液に加えそしてグリセロールおよびエタノールに溶解した風味剤の溶液を加えた。混合物を水で100mlの最終容量にうすめた。
活性化合物50mgを含有するエンテリック被覆した錠剤を次の成分から製造した。
I. Mg塩としての実施例3による化合物 500g
ラクトース 700g
メチルセルロース 6g
交叉結合したポリビニルピロリドン 50g
ステアリン酸マグネシウム 15g
炭酸ナトリウム 6g
蒸留水 十分な量
II. セルロースアセテートフタレート 200g
セチルアルコール 15g
イソプロパノール 2000g
塩化メチレン 2000g
1ml当り活性化合物4mgを含有する静脈内使用用の非経口的処方を次の成分から製造した。
実施例2による化合物 4g
滅菌水 1000mlの最終容量にする十分な量
活性化合物を、水に溶解して1000mlの最終容量にする。この溶液を0.22μmのフィルターを通して濾過しそしてすぐに10mlの滅菌アンプルに分配した。アンプルは密閉した。
活性化合物30mgを含有するカプセルを、次の成分から製造した。
実施例1による化合物 300g
ラクトース 700g
微小結晶性セルロース 40g
低置換されたヒドロキシプロピルセルロース 62g
燐酸水素二ナトリウム 2g
精製水 十分な量
活性化合物を乾燥した成分と混合しそして燐酸水素二ナトリウムの溶液で顆粒化する。この湿った物質を押出し機を通して通過させそして球状にしそして流動床乾燥機中で乾燥した。
被覆溶液:
ヒドロキシプロピルメチルセルロースフタレート 70g
セチルアルコール 4g
アセトン 200g
エタノール 600g
最終の被覆したペレットをカプセルに充填した。
坐剤は、溶接(welding)操作を使用して、次の成分から製造した。それぞれの坐剤は、活性化合物40mgを含有する。
実施例2による化合物 4g
ウィテプソール(Witepsol)H-15 180g
活性化合物を、41℃の温度でウィテプソールH-15と均質に混合した。溶融物質を、1.84gの正味重量になるように予め製造された坐剤パッケージに充填した。冷後、パッケージを熱密閉した。それぞれの坐剤は、活性化合物40mgを含有する。
ラセミ化に対する本発明の光学的に純粋な化合物の安定性は、冷却器中で、pH8、9.3、10および11.2の水性緩衝溶液中で低濃度で測定した。立体化学安定性は、溶解直後および数日後の緩衝溶液中の5−メトキシ−2−〔〔(4−メトキシ−3,5−ジメチル−2−ピリジニル)メチル〕スルフィニル〕−1H−ベンズイミダゾールの(−)異性体の光学純度を比較することによって測定した。測定は、分析キラルカラム上のクロマトグラフィーにより遂行した。本発明の化合物のアルカリ性条件下における驚くほど高い立体化学安定性は、試験化合物のラセミ化がpH 11.2において21日後においてさえも得られないという事実によって例示される。pH8、9.3および10においては、化合物の化学分解は、より明らかであって、これはラセミ化測定を遂行することを困難にする。しかしながら、これらのpH値において、16日後において検出できるラセミ化は得られない。
Claims (8)
- ジアステレオマーを、クロマトグラフィーまたは分別結晶化により分離することを特徴とする請求項1〜3のいずれかに記載の方法。
- 加溶媒分解を、プロトン性溶剤中の塩基または非プロトン性溶剤中の塩基からなるアルカリ性溶液中で遂行することを特徴とする請求項1〜4のいずれかに記載の方法。
- (−)−5−メトキシ−2−〔〔(4−メトキシ−3,5−ジメチル−2−ピリジニル)メチル〕スルフィニル〕−1H−ベンズイミダゾールのナトリウム塩粗製生成物を中和し次いで非−水性媒質中でNaOHで処理することを特徴とする、結晶性形態の(−)−5−メトキシ−2−〔〔(4−メトキシ−3,5−ジメチル−2−ピリジニル)メチル〕スルフィニル〕−1H−ベンズイミダゾールのナトリウム塩の製法。
- 化合物6−メトキシ−2−〔〔(4−メトキシ−3,5−ジメチル−2−ピリジニル)メチル〕−(R/S)−スルフィニル〕−1−(R)マンデロイルオキシメチル−1H−ベンズイミダゾール。
- 化合物6−メトキシ−2−〔〔(4−メトキシ−3,5−ジメチル−2−ピリジニル)メチル〕−(R/S)−スルフィニル〕−1−(S)マンデロイルオキシメチル−1H−ベンズイミダゾール。
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| SE19939301830A SE9301830D0 (sv) | 1993-05-28 | 1993-05-28 | New compounds |
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| JP50055395A Division JP3549111B2 (ja) | 1993-05-28 | 1994-05-27 | 新規な化合物 |
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| JP50055395A Expired - Lifetime JP3549111B2 (ja) | 1993-05-28 | 1994-05-27 | 新規な化合物 |
| JP2003317637A Expired - Lifetime JP3959056B2 (ja) | 1993-05-28 | 2003-09-10 | 新規な化合物 |
| JP2003317639A Expired - Lifetime JP4039999B2 (ja) | 1993-05-28 | 2003-09-10 | 新規な化合物の製造方法 |
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| JP50055395A Expired - Lifetime JP3549111B2 (ja) | 1993-05-28 | 1994-05-27 | 新規な化合物 |
| JP2003317637A Expired - Lifetime JP3959056B2 (ja) | 1993-05-28 | 2003-09-10 | 新規な化合物 |
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| US4636085A (en) * | 1982-03-16 | 1987-01-13 | Mapro Inc. | Apparatus for removing volatiles from plastic materials delivered to an extrusion or injection molding machine |
| SE8204879D0 (sv) * | 1982-08-26 | 1982-08-26 | Haessle Ab | Novel chemical intermediates |
| SE8301182D0 (sv) * | 1983-03-04 | 1983-03-04 | Haessle Ab | Novel compounds |
| US4445708A (en) * | 1983-05-09 | 1984-05-01 | General Motors Corporation | Energy absorbing steering column for vehicles |
| SE8403179D0 (sv) * | 1984-06-13 | 1984-06-13 | Haessle Ab | New compounds |
| IL75400A (en) * | 1984-06-16 | 1988-10-31 | Byk Gulden Lomberg Chem Fab | Dialkoxypyridine methyl(sulfinyl or sulfonyl)benzimidazoles,processes for the preparation thereof and pharmaceutical compositions containing the same |
| CA1327010C (en) * | 1986-02-13 | 1994-02-15 | Tadashi Makino | Stabilized solid pharmaceutical composition containing antiulcer benzimidazole compound and its production |
| GB2189698A (en) * | 1986-04-30 | 1987-11-04 | Haessle Ab | Coated omeprazole tablets |
| GB2189699A (en) * | 1986-04-30 | 1987-11-04 | Haessle Ab | Coated acid-labile medicaments |
| US5075323A (en) * | 1988-08-24 | 1991-12-24 | Aktiebolaget Hassle | Compounds including omeprazole in the treatment of glaucoma |
| DE4035455A1 (de) * | 1990-11-08 | 1992-05-14 | Byk Gulden Lomberg Chem Fab | Enantiomerentrennung |
| US5232706A (en) * | 1990-12-31 | 1993-08-03 | Esteve Quimica, S.A. | Oral pharmaceutical preparation containing omeprazol |
| JPH08509736A (ja) * | 1993-04-27 | 1996-10-15 | セプラコー,インコーポレイテッド | 光学的に純粋な(−)パントプラゾールを用いる胃の疾患治療の方法と組成 |
| US5877192A (en) * | 1993-05-28 | 1999-03-02 | Astra Aktiebolag | Method for the treatment of gastric acid-related diseases and production of medication using (-) enantiomer of omeprazole |
| SE9301830D0 (sv) * | 1993-05-28 | 1993-05-28 | Ab Astra | New compounds |
| US6875872B1 (en) * | 1993-05-28 | 2005-04-05 | Astrazeneca | Compounds |
| SE9302396D0 (sv) * | 1993-07-09 | 1993-07-09 | Ab Astra | A novel compound form |
| SE9302395D0 (sv) * | 1993-07-09 | 1993-07-09 | Ab Astra | New pharmaceutical formulation |
| EP1078628B1 (en) * | 1994-07-08 | 2008-11-19 | AstraZeneca AB | Multiple unit tableted dosage form |
| SE504459C2 (sv) * | 1994-07-15 | 1997-02-17 | Astra Ab | Förfarande för framställning av substituerade sulfoxider |
| SE508669C2 (sv) * | 1996-04-26 | 1998-10-26 | Astra Ab | Nytt förfarande |
| SE510650C2 (sv) * | 1997-05-30 | 1999-06-14 | Astra Ab | Ny förening |
| SE9704183D0 (sv) * | 1997-11-14 | 1997-11-14 | Astra Ab | New process |
| SE9900274D0 (sv) * | 1999-01-28 | 1999-01-28 | Astra Ab | New compound |
-
1993
- 1993-05-28 SE SE19939301830A patent/SE9301830D0/xx unknown
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1994
- 1994-05-06 IS IS4161A patent/IS1854B/is unknown
- 1994-05-11 TW TW083104255A patent/TW389761B/zh not_active IP Right Cessation
- 1994-05-17 HR HR940307A patent/HRP940307B1/xx active IP Right Review Request
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- 1994-05-26 MA MA23521A patent/MA23210A1/fr unknown
- 1994-05-27 EP EP00108480.5A patent/EP1020461B2/en not_active Expired - Lifetime
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- 1994-05-27 CN CN94190335A patent/CN1055469C/zh not_active Expired - Lifetime
- 1994-05-27 EP EP94917244A patent/EP0652872B1/en not_active Revoked
- 1994-05-27 WO PCT/SE1994/000509 patent/WO1994027988A1/en not_active Ceased
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- 1994-05-27 CA CA002337581A patent/CA2337581A1/en not_active Abandoned
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1995
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1997
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1999
- 1999-09-03 CN CN99118539A patent/CN1107503C/zh not_active Expired - Lifetime
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2001
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- 2001-05-22 CY CY0100010A patent/CY2224B1/xx unknown
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2003
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2007
- 2007-01-02 FI FI20070002A patent/FI20070002A7/fi not_active Application Discontinuation
- 2007-02-27 US US11/679,264 patent/US20080312449A1/en not_active Abandoned
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2009
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2011
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- 2011-09-19 LU LU91870C patent/LU91870I2/fr unknown
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