CN106117242A - 四氢噻喃并嘧啶类衍生物及其制备方法与应用 - Google Patents
四氢噻喃并嘧啶类衍生物及其制备方法与应用 Download PDFInfo
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- CN106117242A CN106117242A CN201610488310.1A CN201610488310A CN106117242A CN 106117242 A CN106117242 A CN 106117242A CN 201610488310 A CN201610488310 A CN 201610488310A CN 106117242 A CN106117242 A CN 106117242A
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- Prior art keywords
- chloride
- substituted
- bromide
- tetrahydrothiopyranopyrimidine
- dmso
- Prior art date
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- 238000002360 preparation method Methods 0.000 title claims abstract description 30
- 150000001875 compounds Chemical class 0.000 claims abstract description 41
- 229940079593 drug Drugs 0.000 claims abstract description 23
- 239000003814 drug Substances 0.000 claims abstract description 23
- -1 tetrahydrothiopyranopyrimidine compound Chemical class 0.000 claims abstract description 23
- 241000725303 Human immunodeficiency virus Species 0.000 claims abstract description 14
- 150000003839 salts Chemical class 0.000 claims abstract description 9
- 229940002612 prodrug Drugs 0.000 claims abstract description 5
- 239000000651 prodrug Substances 0.000 claims abstract description 5
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 33
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 30
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 21
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 21
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 claims description 20
- SXSMGJJYIWRNHQ-UHFFFAOYSA-N 2,3,4,4a-tetrahydro-1H-thiopyrano[3,2-d]pyrimidine Chemical class N1CNCC2C1=CC=CS2 SXSMGJJYIWRNHQ-UHFFFAOYSA-N 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 17
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
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- JLTDJTHDQAWBAV-UHFFFAOYSA-N N,N-dimethylaniline Chemical compound CN(C)C1=CC=CC=C1 JLTDJTHDQAWBAV-UHFFFAOYSA-N 0.000 claims description 10
- 125000000623 heterocyclic group Chemical group 0.000 claims description 10
- XHXFXVLFKHQFAL-UHFFFAOYSA-N phosphoryl trichloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 claims description 10
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 9
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 claims description 9
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 6
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- AGEZXYOZHKGVCM-UHFFFAOYSA-N benzyl bromide Chemical compound BrCC1=CC=CC=C1 AGEZXYOZHKGVCM-UHFFFAOYSA-N 0.000 claims description 6
- KCXMKQUNVWSEMD-UHFFFAOYSA-N benzyl chloride Chemical compound ClCC1=CC=CC=C1 KCXMKQUNVWSEMD-UHFFFAOYSA-N 0.000 claims description 6
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- 150000002989 phenols Chemical class 0.000 claims description 6
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- NNBBQNFHCVVQHZ-UHFFFAOYSA-N methyl carbamimidothioate;sulfuric acid Chemical compound CSC(N)=N.OS(O)(=O)=O NNBBQNFHCVVQHZ-UHFFFAOYSA-N 0.000 claims description 3
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- BXCBUWKTXLWPSB-UHFFFAOYSA-N 1-(chloromethyl)-2-nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1CCl BXCBUWKTXLWPSB-UHFFFAOYSA-N 0.000 claims description 2
- VGISFWWEOGVMED-UHFFFAOYSA-N 1-(chloromethyl)-3-methoxybenzene Chemical compound COC1=CC=CC(CCl)=C1 VGISFWWEOGVMED-UHFFFAOYSA-N 0.000 claims description 2
- APGGSERFJKEWFG-UHFFFAOYSA-N 1-(chloromethyl)-3-nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC(CCl)=C1 APGGSERFJKEWFG-UHFFFAOYSA-N 0.000 claims description 2
- IZXWCDITFDNEBY-UHFFFAOYSA-N 1-(chloromethyl)-4-fluorobenzene Chemical compound FC1=CC=C(CCl)C=C1 IZXWCDITFDNEBY-UHFFFAOYSA-N 0.000 claims description 2
- MOHYOXXOKFQHDC-UHFFFAOYSA-N 1-(chloromethyl)-4-methoxybenzene Chemical compound COC1=CC=C(CCl)C=C1 MOHYOXXOKFQHDC-UHFFFAOYSA-N 0.000 claims description 2
- LZSYGJNFCREHMD-UHFFFAOYSA-N 1-bromo-2-(bromomethyl)benzene Chemical compound BrCC1=CC=CC=C1Br LZSYGJNFCREHMD-UHFFFAOYSA-N 0.000 claims description 2
- ZPCJPJQUVRIILS-UHFFFAOYSA-N 1-bromo-3-(bromomethyl)benzene Chemical compound BrCC1=CC=CC(Br)=C1 ZPCJPJQUVRIILS-UHFFFAOYSA-N 0.000 claims description 2
- YLRBJYMANQKEAW-UHFFFAOYSA-N 1-bromo-4-(bromomethyl)benzene Chemical compound BrCC1=CC=C(Br)C=C1 YLRBJYMANQKEAW-UHFFFAOYSA-N 0.000 claims description 2
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- KXODOFITUJNMKA-UHFFFAOYSA-N 4-(bromomethyl)benzamide Chemical compound NC(=O)C1=CC=C(CBr)C=C1 KXODOFITUJNMKA-UHFFFAOYSA-N 0.000 claims description 2
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- 125000006297 carbonyl amino group Chemical group [H]N([*:2])C([*:1])=O 0.000 claims description 2
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- 239000003937 drug carrier Substances 0.000 claims description 2
- TWQLMAJROCNXEA-UHFFFAOYSA-N ethyl 4-(bromomethyl)benzoate Chemical compound CCOC(=O)C1=CC=C(CBr)C=C1 TWQLMAJROCNXEA-UHFFFAOYSA-N 0.000 claims description 2
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- C07D495/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having sulfur atoms as the only ring hetero atoms
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Abstract
本发明公开了四氢噻喃并嘧啶类化合物及其制备方法和应用。所述四氢噻喃并嘧啶类化合物或其药学上可接受的盐或前药,具有如下通式I或II所示的结构,本发明还包括四氢噻喃并嘧啶类化合物的制备方法以及含有一个或多个此类化合物的组合物在制备治疗和预防人免疫缺陷病毒(HIV)药物中的应用。
Description
技术领域
本发明属于医药技术领域,具体涉及一种四氢噻喃并嘧啶类衍生物及其药学上可接受的盐、酯或前药,本发明还涉及这类衍生物的制备方法及其在制备抗人免疫缺陷病毒(HIV)药物中的用途。
背景技术
艾滋病(AIDS)是一种严重危害人类健康的重大传染性疾病,每年造成上百万人的死亡。虽然目前已有多种抗艾滋病单体或者复方制剂上市,但是这些药物只能将HIV病毒限制在可检测范围以下,而不能彻底的从人体内清除,因此AIDS感染者需要终生服药。但是,现有HIV药物的长期服用会导致严重的毒副作用和耐药性的出现,因此急需开发新型抗HIV药物。逆转录酶作为HIV病毒生命周期中的关键酶,在HIV病毒复制过程中发挥着重要的作用。已报道的逆转录酶抑制剂主要分为两类:核苷类逆转录酶抑制剂(NRTIs)和非核苷类逆转录酶抑制剂(NNRTIs),NNRTIs由于具有高效低毒的特点而受到人们的广泛关注。但是由于HIV病毒复制过程中缺乏校正的特点,HIV病毒极易发生突变而产生耐药,因此开发新型抗耐药的NNRTIs是目前抗艾滋病药物研究的重要方向之一。
二芳基嘧啶类(DAPY)NNRTIs是一类高效、低毒、抗耐药的HIV-1抑制剂,目前已有依曲韦林和利匹韦林两种药物上市。但是由于该类化合物水溶性较差,导致其口服生物利用度低,大大限制了其临床应用。因此开发活性更好、抗耐药性更强、口服生物利用度更高并且具有自主知识产权的抗HIV-1药物具有重要的意义。
发明内容
针对现有技术的不足,本发明提供了一种四氢噻喃并嘧啶类衍生物及其制备方法,本发明还提供了四氢噻喃并嘧啶类衍生物作为HIV-1抑制剂的应用。
本发明的技术方案如下:
1.四氢噻喃并嘧啶类衍生物
一种四氢噻喃并嘧啶类衍生物,或其药学上可接受的盐或前药,具有通式I或II所示的结构:
其中A为S(=O)n或CH2;B为S(=O)n或CH2,并且A和B不能同时为S(=O)n;n=0,1或2;
X为O或NH;
R1、R2、R3各自独立的为:H、卤素、氰基、C1-C6烷基、C1-C6烷氧基、C2-C6烯基、三氟甲基、氨基、羟基、氰基乙烯基、氰基乙基或环丙基;
Ar为:取代苯环、取代萘环、各种取代的六元杂环、各种取代的五元杂环、各种取代的六元并五元杂环、各种取代的六元并六元杂环、各种取代的五元并五元杂环、各种取代的苯并五元杂环或各种取代的苯并六元杂环。
根据本发明优选的,
R1、R3为甲基,R2为CN、Me或CH=CHCN;Ar为具有通式(a)或者通式(b)的取代苯环:
其中,R4为H、CN、Me、COR5、COOR5、CONH2、CONHR5、SO2R5、SO2NH2、SO2NHR5、NO2、NH2、NHR5、NHCOR5或NHSO2R5;R5为C1-C10烷烃、环烷烃、卤代烷烃、烯烃或芳香烃。优选的,R5为Me或CH3CO。
本发明中所述的“药学上可接受的盐”是指在可靠的医药评价范围内,化合物的盐类适于与人或较低等动物的组织相接触而无不适当的毒性、刺激及过敏反应等,具有相当合理的收益/风险比例,通常是水或油可溶的或可分散的,并可有效地用于其预期的用途。包括药学上可接受的酸加成盐和药学上可接受的碱加成盐,在这里是可做预期的用途并与式I化合物的化学性质相容的。适宜的盐的列表参见S.M.Birge等,J.Pharm.Sci.,1977,66,1-19页。
本发明中所述的“前药”是指药学上可接受的衍生物,以便这些衍生物所得的生物转换产物是如式I化合物所定义的活性药物。
根据本发明进一步优选的,四氢噻喃并嘧啶类化合物为具有下列结构式的化合物之一:
其中,R1、R2、R3、R4如通式I或II所示。
更进一步优选的,四氢噻喃并嘧啶类衍生物为如下具体化合物之一:
2.四氢噻喃并嘧啶类衍生物的制备方法
四氢噻喃并嘧啶衍生物的制备方法,以巯基乙酸甲酯(A)和4-氯丁酸甲酯(B)为原料,在甲醇钠的条件下反应得到4-((2-甲氧基-2-氧代乙基)硫)丁酸甲酯(C),中间体C在甲醇钠条件下经Dieckmann缩合得到氧代四氢噻喃甲酸酯(D),中间体D与甲基异硫脲在氢氧化钾条件下环合得到2-甲巯基四氢噻喃并嘧啶-2-醇(E),中间体E在醋酸条件下水解得到四氢噻喃并嘧啶-2,4-二醇(F),中间体F在三氯氧磷中以N,N-二甲基苯胺为碱氯化得到2,4-二氯四氢噻喃并嘧啶(G),中间体G在碱性条件下与取代苯酚或苯胺反应得到中间体H,中间体H与相应的取代苯胺反应得到目标化合物;或与1-Boc-4-氨基哌啶反应,脱去Boc保护之后与相应的氯苄或溴苄反应得到目标化合物。
合成路线如下:
试剂和条件:(i)甲醇钠,碘化钾,甲醇,回流;(ii)甲醇钠,甲苯,105℃;(iii)甲基异硫脲硫酸盐,氢氧化钾,甲醇;(iv)醋酸/水,110℃;(v)三氯氧磷,N,N-二甲基苯胺,90℃;(vi)碳酸钾,N,N-二甲基甲酰胺,取代苯酚或苯胺;(vii)a)1-Boc-4-氨基哌啶,N,N-二异丙基乙胺,N-甲基吡咯烷酮,120-130℃;b)三氟乙酸/二氯甲烷,室温;c)取代溴苄或氯苄,碳酸钾,N,N-二甲基甲酰胺,室温;(viii)1-取代-4-氨基哌啶,N,N-二异丙基乙胺,N-甲基吡咯烷酮,120-130℃;(ix)4-氨基苯甲腈,2,2'-双-(二苯膦基)-1,1'-联萘,三(二亚苄基丙酮)二钯,1,4-二氧六环。
所述的取代苯酚或苯胺为均三甲基苯酚、2,6-二甲基-4-氰基苯酚、(E)-2,6-二甲基-4-氰基乙烯基苯酚、均三甲基苯胺、2,6-二甲基-4-氰基苯胺或(E)-2,6-二甲基-4-氰基乙烯基苯胺。
所述的取代溴苄或氯苄为邻氯氯苄、间氯氯苄、对氯氯苄、邻溴溴苄、间溴溴苄、对溴溴苄、邻氟氯苄、间氟氯苄、对氟氯苄、2,4-二氟溴苄、3,4-二氟溴苄、邻氰基氯苄、间氰基氯苄、对氰基氯苄、邻硝基氯苄、间硝基氯苄、对硝基氯苄、邻甲氧基氯苄、间甲氧基氯苄、对甲氧基氯苄、对甲磺酰基溴苄、对磺酰胺基溴苄、间磺酰胺基溴苄、对甲酰胺基溴苄、4-溴甲基苯甲酸乙酯、4-溴甲基苯甲酸酰胺、3-溴甲基苯甲酸酰胺、N-(4-溴甲基苯基)甲磺酰胺。
其中,R1、R2、R3、A、B、X的定义同上通式I或II所述。
本发明所述的室温为20-30℃。
3.四氢噻喃并嘧啶类衍生物的抗HIV-1野生株及突变株活性及应用
对按照上述方法合成的部分四氢噻喃并嘧啶类衍生物进行了细胞水平的抗HIV-1(IIIB),单耐药突变株L100I、K103N、Y181C、Y188L以及双耐药突变株RES056(K103N/Y181C)、F227L/V106A的活性筛选。经过实验得出:本发明的四氢噻喃并嘧啶衍生物是一系列具有新颖骨架的非核苷类HIV-1抑制剂,表现出了极强的抗HIV-1野生株和突变株活性。因此,四氢噻喃并嘧啶类化合物具有进一步研发的价值,可作为抗HIV-1的先导化合物加以利用。
本发明的四氢噻喃并嘧啶衍生物可作为非核苷类HIV-1抑制剂应用。具体地说,作为HIV-1抑制剂用于制备抗艾滋病药物。
一种抗HIV-1药物组合物,包括本发明的四氢噻喃并嘧啶衍生物和一种或多种药学上可接受载体或赋形剂。
本发明提供了结构全新的四氢噻喃并嘧啶类衍生物、其制备方法、其抗HIV-1活性筛选结果及其在抗病毒领域中的首次应用。经实验证明,本发明的四氢噻喃并嘧啶类衍生物可作为HIV-1抑制剂应用,并具有很高的应用价值。具体地说,作为HIV-1抑制剂用于制备抗艾滋病药物。
具体实施方式
通过下述实例有助于理解本发明,但不能限制本发明的内容。
实施例中所涉及的合成路线如下:
合成路线一:
实施例1:母环2,6-二氯-7,8-二氢-6H-噻喃[3,2-d]嘧啶(7)的制备
4-((2-甲氧基-2-氧代乙基)硫)丁酸甲酯(3)的制备。
巯基乙酸甲酯(3.93mL,44mmol)溶于甲醇钠(2.75g,51mmol)的甲醇(30mL)溶液,搅拌0.5h,加入碘化钾(50mg)和4-氯丁酸甲酯(6.2mL,51mmol)升温至65℃,反应20h。反应液冷却,过滤后浓缩,加二氯甲烷(100mL)后用水洗(20mL×3),饱和食盐水洗,无水硫酸钠干燥,过滤浓缩得浅黄色液体2-甲氧基2-氧代乙硫基丁酸甲酯(8.24g)。中间体无需纯化直接进行下一步。
1H NMR(600MHz,CDCl3)δ:3.75(s,3H),3.66(s,3H),3.21(s,2H),2.77(t,J=7.2Hz,2H),2.66(t,J=7.2Hz,2H),1.93(p,J=7.2Hz,2H).ESI-MS:m/z 207.3(M+1)+,224.4(M+18)+.C8H14O4S(206.06).
3-氧代四氢-2H-噻喃-2-甲酸甲酯(4)的制备
中间体3(5g,24.3mmol)溶于甲苯(40mL)中,室温搅拌下加入甲醇钠(1.43g,26.5mmol),升温至105℃反应3h。冷却,反应液倒入冷却的12N HCl(5mL)中,乙酸乙酯萃取(30mL×3),合并有机层,饱和食盐水洗,无水硫酸钠干燥,过滤浓缩后硅胶柱色谱分离得浅黄色液体(1.93g)。
产率45.8%,1H NMR(CDCl3)δ:12.18(1H,s),2.79-2.83(2H,m),2.42(2H,t,J=6.6Hz),2.10-2.17(2H,m).ESI-MS:m/z 175.3(M+1)+,192.5(M+18)+.C7H10O3S(174.04).
2-甲巯基-7,8-二氢-6H-噻喃[3,2-d]嘧啶-2-醇(5)的制备
氢氧化钾(0.57g,10.76mmol)溶于甲醇(30mL)中,加入中间体4a(1.25g,7.17mmol)和甲基异硫脲硫酸盐(1g,3.58mmol),室温搅拌16h。反应完成后将反应液倒入冰水中(40mL),加醋酸2mL后过滤,收集沉淀,干燥后得白色固体,反应无需纯化继续进行下一步。
熔点:234-236℃,1H NMR(400MHz,DMSO-d6)δ:12.70(s,1H),2.94-2.84(m,2H),2.61(t,J=6.3Hz,2H),2.45(s,3H),2.08-1.95(m,2H).ESI-MS:m/z 215.4(M+1)+,237.3(M+23)+.C8H10N2OS2(214.02).
7,8-二氢-6H-噻喃[3,2-d]嘧啶-2,4-二醇(6)的制备
中间体5(1.05g)悬浮于10mL水中,加醋酸20mL后反应液在110℃回流反应3天。反应液冷却,过滤,水洗得无色晶体(0.5g)。
两步产率37.7%,熔点:>300℃,1H NMR(400MHz,DMSO-d6)δ:11.17(s,1H),10.82(s,1H),2.84(d,J=6.0Hz,2H),2.43(t,J=6.3Hz,2H),2.04-1.91(m,2H).ESI-MS:m/z185.0(M+1)+,207.2(M+23)+.C7H8N2O2S(184.03).
2,4-二氯-7,8-二氢-6H-噻喃[3,2-d]嘧啶(7)的制备
中间体6(0.42g,2.3mmol)溶于三氯氧磷(2mL)中,加入N,N-二甲基苯胺(70μL)后升温至90℃反应18小时。冷却至室温后倒入50mL冰水中,二氯甲烷萃取(30mL×3),合并有机层,饱和食盐水洗,无水硫酸钠干燥,过滤后浓缩,硅胶柱色谱分离,得浅灰色固体(0.35g)。
产率69.4%,熔点:105-108℃,1H NMR(CDCl3)δ:3.09-3.13(2H,m),2.99(2H,t,J=6.3Hz),2.21-2.28(2H,m).ESI-MS:m/z 221.3(M+1)+.C7H6Cl2N2S(219.96).
合成路线二:
实施例2:4-((2-氯-7,8-二氢-6H-噻喃[3,2-d]嘧啶-4-基)氧)-3,5-二甲基苯甲腈(8a)的制备
中间体7(0.5g,2.26mmol)溶于N,N-二甲基甲酰胺中,加入碳酸钾(0.38g,2.71mmol)和3,5-二甲基-4-羟基苯甲腈(0.40g,2.71mmol),室温搅拌过夜。过滤,蒸干后加二氯甲烷溶解,水洗三次,饱和食盐水洗,无水硫酸钠干燥,过滤后蒸干乙酸乙酯/石油醚重结晶得浅灰色粉末(0.54g)。
产率72.5%,熔点:176-179℃,1H NMR(400MHz,DMSO-d6)δ:7.73(s,2H),3.16(d,J=5.6Hz,2H),2.92(t,J=6.2Hz,2H),2.23-2.13(m,2H),2.07(s,6H).ESI-MS:m/z 332.4(M+1)+.C16H14ClN3OS(331.05).
2-氯-4-(2,4,6-三甲基苯基)-7,8-二氢-6H-噻喃[3,2-d]嘧啶(8b)的制备
操作步骤同8a,所不同的是起始原料用的是2,4,6-三甲基苯酚代替3,5-二甲基-4-羟基苯甲腈。
浅灰色粉末(0.48g),产率66.6%,熔点:254-255℃,1H NMR(400MHz,DMSO-d6)δ:7.05(s,2H),3.04-2.93(m,2H),2.66(t,J=6.1Hz,2H),2.24(s,3H),2.09(dt,J=12.1,6.1Hz,2H),1.98(s,6H).ESI-MS:m/z 321.4(M+1)+.C16H17ClN2OS(320.08).
E-3-(4-((2-氯-7,8-二氢-6H-噻喃[3,2-d]嘧啶-4-基)氧)-3,5-二甲基苯基)丙烯酰胺(8c)的制备
操作步骤8a,所不同的是起始原料用的是3-(3,5-二甲基-4-羟基苯基)丙烯腈代替3,5-二甲基-4-羟基苯甲腈。
浅灰色粉末(0.7g),产率86.1%,熔点:240-242℃,1H NMR(400MHz,CDCl3)δ:7.34(d,J=16.7Hz,1H),7.19(s,2H),5.82(d,J=16.6Hz,1H),3.17-3.05(m,2H),2.97(t,J=6.3Hz,2H),2.30(p,J=6.2Hz,2H),2.13(s,6H).ESI-MS:m/z 358.3(M+1)+.C18H16ClN3OS(357.07).
实施例3:化合物的制备
中间体8a(0.5g,1.5mmol)和对氨基苯甲腈(0.36g,3mmol)溶于二氧六环(20mL)中,加入2,2'-双-(二苯膦基)-1,1'-联萘(93mg,0.15mmol)和三(二亚苄基丙酮)二钯(140mg,0.15mmol)室温搅拌溶解后加入碳酸铯(0.98g,3mmol),氮气保护下升温至100℃反应3h。冷却过滤后浓缩,乙酸乙酯(100mL)溶解后水洗(20mL×3),饱和食盐水洗,无水硫酸钠干燥,过滤后硅胶柱色谱分离得白色固体(0.48g)。
产率77.0%,熔点:253-254℃,1H NMR(400MHz,DMSO-d6)δ:9.98(s,2H),7.78(s,2H),7.45(s,4H),3.19-3.05(m,2H),2.88(t,J=6.2Hz,2H),2.26-2.16(m,2H),2.11(s,6H).13C NMR(100MHz,DMSO-d6)δ:163.63,163.07,154.68,154.12,145.20,133.10,133.02,132.98,119.92,119.00,118.05,109.09,104.50,102.39,31.74,26.34,22.96,16.12.ESI-MS:m/z 414.5(M+1)+,431.5(M+18)+.C23H19N5OS(413.13).
操作步骤同IA-1-1,所不同的是使用中间体8c(0.2g)代替中间体8a。
白色粉末(100mg),产率40.6%。熔点:278-280℃,1H NMR(400MHz,DMSO-d6)δ:9.95(s,1H),7.68(d,J=16.7Hz,1H),7.54(s,2H),7.48(d,J=8.6Hz,2H),7.39(d,J=8.8Hz,2H),6.48(d,J=16.7Hz,1H),3.19-3.06(m,2H),2.87(t,J=6.2Hz,2H),2.20(p,J=6.0Hz,2H),2.08(s,6H).13C NMR(100MHz,DMSO-d6)δ:163.47,163.30,154.76,152.47,150.45,145.29,132.97,131.93,131.63,128.64,119.95,119.33,118.06,104.49,102.26,96.93,31.71,26.33,22.98,16.40.ESI-MS:m/z 440.6(M+1)+,457.6(M+18)+.C25H21N5OS(439.15).
IA-1-1(200mg,0.48mmol)溶于二氯甲烷(5mL)中,冷却至-78℃,氮气保护下滴加间氯过氧苯甲酸(107mg,0.57mmol)的二氯甲烷溶液(3mL),反应1h。反应液升至室温,加饱和亚硫酸氢钠(30mL),乙酸乙酯萃取(20mL×3),饱和食盐水洗,无水硫酸钠干燥,过滤后硅胶柱色谱分离得白色粉末(150mg)。
产率72.2%,熔点:247-249℃,1H NMR(400MHz,DMSO-d6)δ:10.52(s,1H),7.80(d,J=4.6Hz,2H),7.50(s,4H),3.32-3.19(m,1H),3.09-2.79(m,3H),2.61-2.51(m,2H),2.15(d,J=14.7Hz,6H).13C NMR(100MHz,DMSO-d6)δ:169.09,167.61,158.94,153.63,144.12,133.16,133.08,119.60,119.31,118.95,111.11,109.44,104.19,60.21,45.19,32.08,16.22,12.89.ESI-MS:m/z 447.5(M+18)+,452.3(M+23)+.C23H19N5O2S(429.13).
IA-1-1(100mg,0.24mmol)溶于二氯甲烷(10mL)中,加入间氯过氧苯甲酸(125mg,0.73mmol),室温搅拌过夜。反应液加二氯甲烷萃取(50mL),饱和亚硫酸氢钠洗(30mL),水洗(20mL×2),饱和食盐水洗,无水硫酸钠干燥,过滤蒸干后乙酸乙酯/氯仿重结晶得无色晶体(67mg)。
产率62.2%,熔点:263-265℃,1H NMR(400MHz,DMSO-d6)δ:10.62(s,1H),7.81(s,2H),7.64-7.18(m,4H),3.69-3.55(m,2H),3.02(t,J=6.0Hz,2H),2.34(d,J=5.1Hz,2H),2.16(s,6H).13C NMR(100MHz,DMSO-d6)δ:169.89,164.70,158.49,153.31,143.82,133.19,133.08,132.92,119.52,119.44,118.92,112.61,109.52,104.48,52.49,32.08,18.98,16.08.ESI-MS:m/z463.5(M+18)+,468.4(M+23)+.C23H19N5O3S(445.12).
合成路线四:
实施例4:3,5-二甲基-4-((2-(哌啶-4-氨基)-7,8-二氢-6H-噻喃[3,2-d]嘧啶-4-基)氧)苯甲腈(9a)的制备
中间体8a(2g,6.03mmol)和1-Boc-4-氨基哌啶(1.45g,7.23mmol)溶于N-甲基吡咯烷酮(10mL)中,加入N,N-二异丙基乙胺(1.2mL)后升温至100-120℃反应4-6h。冷却,乙酸乙酯溶解后水洗(30mL×3),饱和食盐水洗,无水硫酸钠干燥,过滤蒸干后溶于三氟乙酸和二氯甲烷溶液中,室温反应4h,加饱和碳酸氢钾调节pH显中性后用乙酸乙酯萃取(30mL×3),合并有机层,饱和食盐水洗,无水硫酸钠干燥,过滤蒸干后硅胶柱色谱分离得白色粉末(1.5g)。
产率62.9%,熔点:250℃分解,1H NMR(400MHz,DMSO-d6)δ:9.00(s,2H),7.67(s,2H),7.02(s,1H),3.14(d,J=12.5Hz,2H),3.07-2.99(m,2H),2.71(t,J=6.3Hz,4H),2.18-2.09(m,2H),2.07(s,6H),1.81(s,2H),1.54(s,2H).13C NMR(100MHz,DMSO-d6)δ:163.27,157.76,154.08,132.96,132.77,119.08,108.60,46.02,41.99,31.86,28.05,26.31,23.39,16.18.ESI-MS:m/z 396.4(M+1)+.C21H25N5OS(395.18).
4-(2,4,6-三甲基苯基)-N-(哌啶-4-基)-7,8-二氢-6H-噻喃[3,2-d]嘧啶-2-氨(9b)的制备
操作步骤同9a,所不同的是使用中间体8b(1g)代替中间体8a。
白色粉末(0.34g),产率28.7%,熔点:290℃分解,1H NMR(400MHz,DMSO-d6)δ:8.91(s,2H),6.90(s,3H),3.15(d,J=12.6Hz,2H),3.07-2.96(m,2H),2.69(t,J=6.3Hz,4H),2.24(s,3H),2.12(p,J=5.9Hz,2H),1.98(s,6H),1.82(s,2H),1.54(s,2H).13C NMR(100MHz,DMSO-d6)δ:164.00,157.90,147.95,134.59,130.15,129.29,46.06,42.15,31.84,28.14,26.30,23.45,20.81,16.44.ESI-MS:m/z 385.5(M+1)+.C21H28N4OS(384.20).
E-3-(3,5-二甲基-4-((2-(哌啶-4-氨基)-7,8-二氢-6H-噻喃[3,2-d]嘧啶-4-基)氧)苯基)丙烯酰胺(9c)的制备
操作步骤同9a,所不同的是使用中间体8c(0.5g)代替中间体8a。
白色粉末(0.32g),产率54.2%,熔点:280℃分解,1H NMR(400MHz,DMSO-d6)δ:8.85(s,2H),7.59(d,J=16.7Hz,1H),7.43(s,2H),7.30(s,2H),6.66(s,1H),6.40(d,J=16.7Hz,1H),3.43(s,2H),3.08-2.95(m,2H),2.68(t,J=6.2Hz,4H),2.15-2.09(m,2H),2.06(s,1H),2.03(s,6H),1.61(s,4H),1.32(s,2H).13C NMR(100MHz,DMSO-d6)δ:163.65,158.05,152.59,150.58,131.62,131.45,126.05,119.42,96.51,62.02,52.67,49.07,31.89,26.34,23.50,16.46.ESI-MS:m/z 422.5(M+1)+.C23H27N5OS(421.19).
实施例5:化合物的制备
中间体9a(0.2g,0.51mmol)溶于N,N-二甲基甲酰胺(10mL)中,加入对溴甲基苯磺酰胺(0.19g,0.76mmol)和碳酸钾(0.11g,0.76mmol)室温下搅拌过夜,反应液过滤,真空泵下浓缩,乙酸乙酯溶解(50mL)后水洗(20mL×3),饱和食盐水洗,无水硫酸钠干燥,过滤后浓缩,硅胶柱色谱分离,产物用甲醇冲洗涤即得产物(0.24g)。
以不同的取代溴(氯)苄和中间体9a-9c得到目标化合物IIA-1-1~IIA-1-13,结果如下:
白色粉末,产率84.1%,熔点:193-195℃,1H NMR(400MHz,DMSO-d6)δ:7.77(d,J=8.3Hz,2H),7.66(s,2H),7.45(d,J=8.0Hz,2H),7.30(s,2H),6.88(s,1H),3.45(s,2H),3.13-2.95(m,2H),2.91-2.57(m,4H),2.16-2.08(m,2H),2.06(s,6H),1.99-0.81(m,6H).13CNMR(100MHz,DMSO-d6))δ:163.25,157.97,154.22,143.35,143.13,133.02,132.66,129.41,126.04,119.10,108.56,61.97,52.61,49.07,31.86,31.65,26.34,23.48,16.15.ESI-MS:m/z 565.5(M+1)+.C28H32N6O3S2(564.20).
操作步骤同IIA-1-1,所不同的是使用中间体9b(0.2g)代替中间体9a。
白色粉末(157mg),产率43.6%,熔点:218-220℃,1;H NMR(400MHz,DMSO-d6)δ:7.77(d,J=8.3Hz,2H),7.44(d,J=8.0Hz,2H),7.30(s,2H),6.88(s,2H),6.60(s,1H),3.45(s,2H),3.08-2.91(m,2H),2.79-2.57(m,4H),2.23(s,3H),2.10(dt,J=11.8,5.4Hz,2H),1.97(s,6H),1.72-1.47(m,2H),1.46-1.10(m,2H).13C NMR(100MHz,DMSO-d6))δ:163.97,162.36,158.15,148.02,143.36,143.13,134.49,130.15,129.42,129.22,126.03,61.99,52.65,49.07,31.86,31.74,26.33,23.54,20.80,16.43.ESI-MS:m/z 554.5(M+1)+.C28H35N5O3S2(553.22).
操作步骤同IIA-1-1,所不同的是使用中间体9c(0.2g)代替中间体9a。
白色粉末(0.18g),产率64.2%,熔点:237-239℃,1H NMR(400MHz,DMSO-d6)δ:7.77(d,J=8.3Hz,2H),7.59(d,J=16.7Hz,1H),7.43(s,4H),7.30(s,2H),6.66(s,1H),6.40(d,J=16.7Hz,1H),3.43(s,2H),3.08-2.95(m,2H),2.68(t,J=6.2Hz,4H),2.15-2.09(m,2H),2.06(s,1H),2.03(s,6H),1.61(s,4H),1.32(s,2H).13C NMR(100MHz,DMSO-d6))δ:163.65,158.05,152.59,150.58,143.41,143.14,131.62,131.45,129.43,128.33,126.05,119.42,96.51,62.02,52.67,49.07,31.89,31.68,26.34,23.50,16.46.ESI-HRMS:m/z 591.2257(M+1)+.C30H34N6O3S2(590.2134).
操作步骤同IIA-1-1,所不同的是使用3-溴甲基苯磺酰胺(152mg)代替4-溴甲基苯磺酰胺。
白色粉末(0.21g),产率73.5%,熔点:170-172℃,1H NMR(400MHz,DMSO-d6)δ:7.74(s,1H),7.71(d,J=7.4Hz,1H),7.67(s,2H),7.51(t,J=7.5Hz,1H),7.47(d,J=7.5Hz,1H),7.36(s,2H),6.80(s,1H),3.46(s,2H),3.02(dd,J=6.7,4.1Hz,2H),2.69(t,J=6.1Hz,4H),2.19-2.09(m,2H),2.08(s,1H),2.06(s,6H),1.66(s,4H),1.32(s,2H).13C NMR(100MHz,DMSO-d6)δ:163.25,157.84,154.22,144.59,144.09,140.31,133.01,132.74,132.47,129.26,125.92,124.68,119.13,108.55,62.05,52.62,49.07,31.82,31.65,26.30,23.45,16.18.ESI-HRMS:m/z 565.2045(M+1)+.C28H32N6O3S2(564.1977).
操作步骤同IIA-1-1,所不同的是使用4-氯甲基苯甲腈(92mg)代替4-溴甲基苯磺酰胺。
白色粉末(0.21g),产率81.3%,熔点:184-186℃,1H NMR(400MHz,DMSO-d6)δ:7.77(d,J=8.2Hz,2H),7.66(s,2H),7.47(d,J=8.1Hz,2H),6.89(br,1H),3.48(s,2H),3.12-2.95(m,2H),2.69(t,J=6.3Hz,5H),2.19-2.02(m,8H),1.63(s,4H),1.32(s,2H).13C NMR(100MHz,DMSO-d6)δ:163.26,158.00,154.22,145.26,133.01,132.66,132.58,129.87,119.38,119.10,110.08,108.56,61.93,52.59,48.66,31.84,31.66,26.33,23.47,16.16.ESI-MS:m/z 511.6(M+1)+.C29H30N6OS(510.22).
操作步骤同IIA-1-1,所不同的是使用3-溴甲基苯甲腈(119mg)代替4-溴甲基苯磺酰胺。
白色粉末(0.21g),产率81.3%,熔点:164-166℃,1H NMR(400MHz,DMSO-d6)δ:7.72(d,J=7.6Hz,1H),7.68(s,1H),7.65(s,2H),7.62(d,J=7.8Hz,1H),7.53(t,J=7.7Hz,1H),6.87(s,1H),3.45(s,2H),3.09-2.94(m,2H),2.69(t,J=6.3Hz,4H),2.19-2.09(m,2H),2.09(s,1H),2.06(s,6H),1.63(s,4H),1.31(s,2H).13C NMR(100MHz,DMSO-d6)δ:163.26,157.96,154.22,140.90,134.02,133.02,132.68,132.44,131.22,129.89,119.34,119.10,111.65,108.56,61.46,55.38,52.49,31.86,31.64,31.15,26.33,23.47,21.52,16.16.ESI-HRMS:m/z 511.2335(M+1)+.C29H30N6OS(510.2202).
操作步骤同IIA-1-1,所不同的是使用2-溴甲基苯甲腈(92mg)代替4-溴甲基苯磺酰胺。
白色粉末(0.2mg),产率77.5%,熔点:206-208℃,1H NMR(400MHz,DMSO-d6)δ:7.79(d,J=7.6Hz,1H),7.70-7.61(m,3H),7.52(d,J=7.7Hz,1H),7.46(t,J=7.6Hz,1H),6.86(s,1H),3.56(s,2H),3.10-2.94(m,2H),2.69(t,J=6.2Hz,4H),2.17-2.09(m,2H),2.09(s,1H),2.06(s,6H),1.59(s,4H),1.30(s,2H).13C NMR(100MHz,DMSO-d6)δ:163.26,158.00,154.22,142.82,133.42,133.41,133.02,132.69,130.48,128.36,119.08,118.11,112.53,108.57,60.36,60.22,52.54,31.88,31.58,31.19,26.33,23.47,16.17,14.56.ESI-MS:m/z511.3(M+1)+.C29H30N6OS(510.22).
操作步骤同IIA-1-1,所不同的是使用4-氯甲基苯甲酰胺(103mg)代替4-溴甲基苯磺酰胺。
白色粉末(0.2g),产率74.8%,熔点:261-263℃,1H NMR(400MHz,DMSO-d6)δ:7.91(s,1H),7.81(d,J=8.1Hz,2H),7.66(s,2H),7.33(d,J=7.9Hz,2H),7.30(s,1H),6.86(br,1H),3.43(s,2H),3.08-2.94(m,2H),2.69(t,J=6.2Hz,4H),2.17-2.10(m,2H),2.09(s,1H),2.06(s,6H),1.60(s,4H),1.31(s,2H).13C NMR(100MHz,DMSO-d6)δ:168.25,163.26,158.04,154.23,142.60,142.52,133.45,133.02,132.69,128.88,127.88,119.11,108.56,79.65,62.19,52.63,31.84,31.65,31.16,26.33,23.47,16.16.ESI-MS:m/z 529.5(M+1)+,551.6(M+23)+.C29H32N6O2S(528.23).
操作步骤同IIA-1-1,所不同的是使用3-氯甲基苯甲酰胺(103mg)代替4-溴甲基苯磺酰胺。
白色粉末(0.19g),产率71.1%,熔点:245-247℃,1H NMR(400MHz,DMSO-d6)δ:7.95(s,1H),7.76(d,J=11.6Hz,2H),7.66(s,2H),7.39(d,J=7.3Hz,2H),7.33(s,1H),6.86(s,1H),3.43(s,2H),3.02(s,2H),2.77-2.58(m,4H),2.19-2.09(m,2H),2.09(s,1H),2.06(s,6H),1.63(s,4H),1.32(s,2H).13C NMR(100MHz,DMSO-d6)δ:168.43,163.26,157.96,154.22,139.22,134.68,133.02,132.68,132.03,128.45,126.44,119.10,108.56,62.44,52.60,48.81,31.87,31.65,31.15,26.33,23.47,16.16.ESI-MS:m/z 529.4(M+1)+,551.6(M+23)+.C29H32N6O2S(528.23).
操作步骤同IIA-1-1,所不同的是使用4-氯甲基苯甲酸乙酯(148mg)代替4-溴甲基苯磺酰胺。
白色粉末(0.16g),产率56.7%,熔点:181-183℃,1H NMR(400MHz,DMSO-d6)δ:7.91(d,J=8.1Hz,2H),7.65(s,2H),7.41(d,J=8.1Hz,2H),6.87(br,1H),4.30(q,J=7.1Hz,2H),3.46(s,2H),3.09-2.97(m,2H),2.69(t,J=6.2Hz,4H),2.16-2.09(m,2H),2.09(s,1H),2.06(s,6H),1.60(s,4H),1.31(t,J=7.1Hz,5H).13C NMR(100MHz,DMSO-d6)δ:166.11,163.26,157.99,154.24,144.87,141.04,133.02,132.74,129.52,129.29,128.98,119.10,108.56,62.16,61.04,56.50,52.62,31.88,31.65,31.16,26.33,23.47,16.15,14.66.ESI-MS:m/z 558.6(M+1)+.C31H35N5O3S(557.25).
操作步骤同IIA-1-1,所不同的是使用4-溴甲基硝基苯(131mg)代替4-溴甲基苯磺酰胺。
浅黄色粉末(140mg),产率52.2%,熔点:190-192℃,1H NMR(400MHz,DMSO-d6)δ:8.18(d,J=8.7Hz,2H),7.66(s,2H),7.55(d,J=8.6Hz,2H),6.88(s,1H),3.53(s,2H),3.11-2.92(m,2H),2.69(t,J=6.2Hz,4H),2.19-2.10(m,2H),2.09(s,1H),2.06(s,6H),1.59(s,4H),1.33(s,2H).13C NMR(100MHz,DMSO-d6)δ:163.26,157.99,154.23,147.51,146.97,133.02,132.67,130.03,123.80,119.10,108.56,61.63,52.61,31.84,31.66,31.15,26.33,23.47,19.03,16.15.ESI-MS:m/z 531.5(M+1)+.C28H30N6O3S(530.21).
操作步骤同IIA-1-1,所不同的是使用1-氯甲基-4-甲砜基苯(151mg)代替4-溴甲基苯磺酰胺。
白色粉末(0.19g),产率66.7%,熔点:265-267℃,1H NMR(400MHz,DMSO-d6)δ:7.87(d,J=8.3Hz,2H),7.66(s,2H),7.54(d,J=8.2Hz,2H),6.89(br,1H),3.50(s,2H),3.20(s,3H),3.10-2.95(m,2H),2.69(t,J=6.2Hz,4H),2.11(m,2H),2.09(s,1H),2.06(s,6H),1.64(s,4H),1.32(s,2H).13C NMR(100MHz,DMSO-d6)δ:163.26,158.00,157.98,154.22,145.46,139.81,133.02,132.69,129.77,127.39,119.12,108.56,61.89,52.65,48.68,44.07,31.86,31.66,26.33,23.47,16.16.ESI-MS:m/z 564.5(M+1)+,586.5(M+23)+.C29H33N5O3S2(563.20).
合成路线五:
实施例6:化合物IIA-1-13的制备
铁粉(0.56g,10mmol)溶于5mL水中,加0.12mL醋酸,50℃条件下搅拌15分钟,快速加入化合物IIA-1-12(0.53g,1mmol)的N,N-二甲基甲酰胺(10mL),50℃反应1h。冷却,用碳酸氢钠溶液调节pH>9,硅藻土过滤,固体用乙酸乙酯洗涤,液体用乙酸乙酯萃取(15mL×3),合并有机层,饱和食盐水洗,无水硫酸钠干燥,硅胶柱色谱分离,甲醇洗涤产物得淡黄色粉末(0.31g)。
产率63.6%,熔点:169-171℃,1H NMR(400MHz,DMSO-d6)δ:7.66(s,2H),6.87(d,J=8.1Hz,2H),6.49(d,J=8.2Hz,2H),4.94(s,2H),3.17(s,2H),3.08-2.95(m,2H),2.68(t,J=6.1Hz,4H),2.12(d,J=5.3Hz,2H),2.09(s,1H),2.05(s,6H),1.48(s,4H),1.23(s,2H).13C NMR(100MHz,DMSO-d6)δ:163.24,158.03,154.22,147.95,133.01,132.65,130.16,125.66,123.82,119.11,114.01,108.55,62.55,52.39,31.65,26.31,23.46,21.24,19.03,16.16,14.56.ESI-MS:m/z501.5(M+1)+.C28H32N6OS(500.24).
实施例7:化合物IIA-1-14的制备。
化合物IIA-1-13(0.2g,0.4mmol)和三乙胺(32μL,0.4mmol)溶于二氯甲烷中,冰浴条件下滴加甲磺酰氯(100μL,1.2mmol),反应2h后升至室温搅拌过夜。加水15mL后用饱和碳酸氢钠调节pH>7后用乙酸乙酯萃取(15mL×3),合并有机层,饱和食盐水洗,无水硫酸钠干燥,甲醇/氯仿重结晶得白色粉末(40mg)。
产率17.3%,熔点:153-157℃,1H NMR(400MHz,DMSO-d6)δ:9.68(s,1H),7.66(s,2H),7.21(d,J=8.3Hz,2H),7.14(d,J=8.4Hz,2H),6.70(br,1H),3.32(s,2H),3.07-2.99(m,2H),2.96(s,3H),2.69(t,J=6.3Hz,4H),2.11(t,J=5.7Hz,2H),2.09(s,1H),2.06(s,6H),1.55(s,4H),1.23(s,2H).13C NMR(100MHz,DMSO-d6)δ:163.25,137.49,134.60,133.01,132.90,132.77,132.70,130.12,120.24,119.13,108.54,100.98,62.08,52.56,39.62,36.25,31.81,31.63,31.17,26.30,23.45,16.16.ESI-HRMS:m/z 579.2250(M+1)+.C29H34N6O3S2(578.2134).
合成路线六:
实施例8:化合物IIC-1-1,IIC-1-2及IIC-2-1的制备。
中间体8a(0.2g,0.6mmol)和3-(4-氨基哌啶-1-基)苯甲腈(145mg,0.72mmol)溶于N-甲基吡咯烷酮(5mL)中,加N,N-二异丙基乙胺(120μL)后升温至100-120℃,反应过夜。反应液冷却,加水析出固体,过滤后甲醇/氯仿重结晶即得白色粉末(129mg)。
产率43.1%,熔点:186-187℃,1H NMR(400MHz,DMSO-d6)δ:7.65(s,2H),7.34(dd,J=8.5,7.4,1H),7.26(s,1H),7.21(d,J=8.5Hz,1H),7.09(d,J=7.4Hz,1H),6.82(br,1H),3.67(s,3H),3.02(p,2H),2.70(t,J=6.0Hz,3H),2.12(t,J=5.7Hz,2H),2.08(s,1H),2.07(s,6H),1.69(s,2H),1.35(s,2H).13C NMR(100MHz,DMSO-d6)δ:163.26,157.91,154.17,151.25,133.01,132.73,130.64,121.53,120.26,119.84,119.12,118.11,112.37,108.58,56.52,47.19,31.85,31.16,30.82,26.31,23.42,18.98,16.18.ESI-HRMS:m/z 497.2133(M+1)+.C28H28N6OS(496.2045).
操作步骤同IIC-1-1,所不同的是使用3-(4-氨基哌啶-1-基)苯甲酰胺(0.16g)代替3-(4-氨基哌啶-1-基)苯甲腈。
白色粉末(109mg),产率35.1%,熔点:232-234℃,1H NMR(400MHz,DMSO-d6)δ:7.91(s,1H),7.68(s,2H),7.38(s,1H),7.29(s,1H),7.25(s,1H),7.23(s,1H),7.03(d,J=4.1Hz,2H),6.73(s,1H),3.65(s,2H),3.03(d,J=5.4Hz,2H),2.72(t,J=6.3Hz,3H),2.13(t,J=5.7Hz,2H),2.09(s,1H),2.09(s,6H),1.72(s,2H),1.42(s,2H).13C NMR(100MHz,DMSO-d6)δ:168.71,163.27,157.95,154.18,151.18,135.40,133.01,132.75,129.25,119.11,118.66,117.98,115.09,108.58,56.50,48.06,31.88,31.16,26.32,23.46,19.04,16.21.ESI-HRMS:m/z 515.2226(M+1)+.C28H30N6O2S(514.2151).
实施例9:目标化合物的体外抗HIV活性测试实验
测试原理
活细胞能够吸收3-(4,5-二甲基噻唑-2)-2,5-二苯基四氮唑溴盐(MTT),吸收进入细胞内的MTT可以在线粒体内被还原,由黄色变成蓝紫色,吸收波长会发生变化,而死细胞则不能还原MTT。测定540nM和690nM处的光密度值(OD值),光密度值与活细胞的数量成正比,即可求出相应的存活率。
感染了HIV病毒的细胞最多能够存活5-7天,而加入HIV-1抑制剂之后能够抑制病毒的复制,从而保护细胞免于病变。向感染HIV病毒的MT-4细胞内加入梯度稀释的抑制剂,培养5-7天以后,用MTT法测定细胞存活率,利用抑制剂浓度与细胞存活率做标准曲线即可得到保护50%细胞免于病变的化合物浓度(即EC50值)。
同理,向正常MT-4细胞内加入梯度稀释的抑制剂,可以计算出使50%正常细胞发生病变的抑制剂浓度(即CC50值),然后得出选择性系数SI(SI=CC50/EC50)。
1.测试材料和方法
(1)HIV-1(IIIB)、HIV-2(ROD)毒株、各种HIV-1耐药株:由比利时鲁汶大学医学院Rega研究所提供。
(2)MT-4细胞:由比利时鲁汶大学医学院Rega研究院提供。
(3)MTT:购自美国Sigma公司。
(4)样品处理:样品临用前溶于DMSO配成适当浓度,并用双蒸水作5倍稀释,各5个稀释度。
(5)阳性对照药:奈韦拉平(NVP)、依法韦仑(EFV)、依曲韦林(ETR)、利匹韦林(RPV)和齐多夫定(AZT)。
(6)测试方法:样品稀释后加入到HIV感染MT-4细胞悬浊液中,经过一段时间后用MTT比色法测定细胞活力,用酶标仪中记录在590nm下的吸光度(A)值,计算出EC50,CC50以及SI。
(7)MTT比色法:加入样品溶液培养一段时间后,向每孔加入MTT溶液(5mg/ML)20μL,继续培养若干小时后,弃染色液,并向每孔加入150μL DMSO,充分混合,用酶标仪中测定590nm下的吸光度(A)值。
2.实验方法
在96孔细胞培养板上,加入50μL含1×104MT-4细胞培养液,再分别加入20μL感染HIV-1(IIIB、RES056或其它变异株)或HIV-2(ROD)的MT-4细胞混悬液(每毫升含100倍CCID50)或者空白培养基(毒性测定),然后加入不同浓度的待测化合物溶液或者阳性对照药物,每个浓度设计3个复孔。接着细胞在5%CO2氛围,37℃下培养5天,向每个孔中加入20μL(5mg/mL)MTT溶液,继续培养2小时,然后加入DMSO,使用酶标仪测定反应溶液在540nm处的吸收度,计算化合物不同浓度下的细胞增值率P%。同时设空白和药物对照组和阳性药物对照组,由此计算化合物保护50%的细胞免于HIV诱导的细胞病变所需浓度(EC50)。选择指数的计算:SI=CC50/EC50。
3.四氢噻喃并嘧啶类衍生物的抗HIV-1野生株及突变株活性及应用
对按照上述方法合成的部分四氢噻喃并嘧啶类衍生物进行了细胞水平的抗HIV-1(IIIB),单耐药突变株L100I、K103N、Y181C、Y188L以及双耐药突变株RES056(K103N/Y181C)、F227L/V106A的活性筛选,以奈韦拉平(NVP)、依法韦伦(EFV)、依曲韦林(ETV)、利匹韦林(RPV)和齐多夫定(AZT)为阳性对照。它们的抗HIV-1活性数据列于表1中。
表1部分化合物和参考药物的结构及其抗HIV-1活性(MT-4细胞)
注:aEC50:保护50%感染HIV-1的MT-4细胞免于细胞病变的化合物浓度;A代表化合物EC50<10nM,B代表化合物EC50值为10-100nM,C代表化合物EC50>100nM;NVP、EFV、AZT、ETV、RPV分别代表上市药物奈韦拉平、依法韦伦、齐多夫定、依曲韦林和利匹韦林。
4.结论:
由表1可以看出,本发明的四氢噻喃并嘧啶衍生物是一系列具有新颖骨架的非核苷类HIV-1抑制剂,表现出了极强的抗HIV-1野生株和突变株活性。绝大部分化合物抑制野生株和突变株的EC50值在1μM以下,其中,化合物IA-1-3的活性尤为突出,其对HIV-1野生株的EC50值是第一代抗艾滋病药物奈韦拉平(NVP)的30倍以上,与最新一代药物依曲韦林(ETV)相当。化合物IA-1-3亦表现出了高的安全性,其对HIV-1野生株的选择性指数大于1000。对单突变株K103N和Y188L,化合物IA-1-2表现出了与依曲韦林相当的抑制活性,对于单突变株L100I,Y181C和双突变株(F227L/V106A和Y181C/K103N)的抑制活性为依曲韦林的2倍以上。因此,四氢噻喃并嘧啶类化合物具有进一步研发的价值,可作为抗HIV-1的先导化合物加以利用。
Claims (9)
1.一种四氢噻喃并嘧啶类衍生物,或其药学上可接受的盐或前药,其特征在于具有通式I或II所示的结构:
其中A为S(=O)n或CH2;B为S(=O)n或CH2,并且A和B不能同时为S(=O)n;n=0,1或2;
X为O或NH;
R1、R2、R3各自独立的为:H、卤素、氰基、C1-C6烷基、C1-C6烷氧基、C2-C6烯基、三氟甲基、氨基、羟基、氰基乙烯基、氰基乙基或环丙基;
Ar为:取代苯环、取代萘环、各种取代的六元杂环、各种取代的五元杂环、各种取代的六元并五元杂环、各种取代的六元并六元杂环、各种取代的五元并五元杂环、各种取代的苯并五元杂环或各种取代的苯并六元杂环。
2.如权利要求1所述的四氢噻喃并嘧啶类衍生物,其特征在于所述通式I或II中R1、R3为甲基,R2为CN、Me或CH=CHCN。
3.如权利要求1所述的四氢噻喃并嘧啶类衍生物,其特征在于所述通式II中Ar为具有通式(a)或者通式(b)的取代苯环:
其中,R4为H、CN、Me、COR5、COOR5、CONH2、CONHR5、SO2R5、SO2NH2、SO2NHR5、NO2、NH2、NHR5、NHCOR5或NHSO2R5;R5为C1-C10烷烃、环烷烃、卤代烷烃、烯烃或芳香烃。
4.如权利要求3所述的四氢噻喃并嘧啶类衍生物,其特征在于,R5为Me或CH3CO。
5.如权利要求1所述的四氢噻喃并嘧啶类衍生物,其特征在于为具有下列结构式的化合物之一:
其中,R1、R2、R3、R4如通式I或II中所示。
6.如权利要求5所述的四氢噻喃并嘧啶类衍生物,其特征在于为具有下列结构式的化合物之一:
7.如权利要求1所述的四氢噻喃并嘧啶类衍生物的制备方法,以巯基乙酸甲酯(A)和4-氯丁酸甲酯(B)为原料,在甲醇钠的条件下反应得到4-((2-甲氧基-2-氧代乙基)硫)丁酸甲酯(C),中间体C在甲醇钠条件下经Dieckmann缩合得到氧代四氢噻喃甲酸酯(D),中间体D与甲基异硫脲在氢氧化钾条件下环合得到2-甲巯基四氢噻喃并嘧啶-2-醇(E),中间体E在醋酸条件下水解得到四氢噻喃并嘧啶-2,4-二醇(F),中间体F在三氯氧磷中以N,N-二甲基苯胺为碱氯化得到2,4-二氯四氢噻喃并嘧啶(G),中间体G在碱性条件下与取代苯酚或苯胺反应得到中间体H,中间体H与相应的取代苯胺反应得到目标化合物;或与1-Boc-4-氨基哌啶反应,脱去Boc保护之后与相应的氯苄或溴苄反应得到目标化合物;
合成路线如下:
试剂和条件:(i)甲醇钠,碘化钾,甲醇,回流;(ii)甲醇钠,甲苯,105℃;(iii)甲基异硫脲硫酸盐,氢氧化钾,甲醇;(iv)醋酸/水,110℃;(v)三氯氧磷,N,N-二甲基苯胺,90℃;(vi)碳酸钾,N,N-二甲基甲酰胺,取代苯酚或苯胺;(vii)a)1-Boc-4-氨基哌啶,N,N-二异丙基乙胺,N-甲基吡咯烷酮,120-130℃;b)三氟乙酸/二氯甲烷,室温;c)取代溴苄或氯苄,碳酸钾,N,N-二甲基甲酰胺,室温;(viii)1-取代-4-氨基哌啶,N,N-二异丙基乙胺,N-甲基吡咯烷酮,120-130℃;(ix)4-氨基苯甲腈,2,2'-双-(二苯膦基)-1,1'-联萘,三(二亚苄基丙酮)二钯,1,4-二氧六环;
所述的取代苯酚或苯胺为均三甲基苯酚、2,6-二甲基-4-氰基苯酚、(E)-2,6-二甲基-4-氰基乙烯基苯酚、均三甲基苯胺、2,6-二甲基-4-氰基苯胺或(E)-2,6-二甲基-4-氰基乙烯基苯胺;
所述的取代溴苄或氯苄为邻氯氯苄、间氯氯苄、对氯氯苄、邻溴溴苄、间溴溴苄、对溴溴苄、邻氟氯苄、间氟氯苄、对氟氯苄、2,4-二氟溴苄、3,4-二氟溴苄、邻氰基氯苄、间氰基氯苄、对氰基氯苄、邻硝基氯苄、间硝基氯苄、对硝基氯苄、邻甲氧基氯苄、间甲氧基氯苄、对甲氧基氯苄、对甲磺酰基溴苄、对磺酰胺基溴苄、间磺酰胺基溴苄、对甲酰胺基溴苄、4-溴甲基苯甲酸乙酯、4-溴甲基苯甲酸酰胺、3-溴甲基苯甲酸酰胺、N-(4-溴甲基苯基)甲磺酰胺;
其中,R1、R2、R3、A、B、X的定义同上通式I或II所述。
8.一种如权利要求1-6任一项所述化合物在制备治疗和预防人免疫缺陷病毒(HIV)药物中的应用。
9.一种药物组合物,包含权利要求1-6任一项所述化合物和一种或多种药学上可接受载体或赋形剂。
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| PCT/CN2016/089710 WO2018000450A1 (zh) | 2016-06-27 | 2016-07-12 | 四氢噻喃并嘧啶类衍生物及其制备方法与应用 |
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| CN106117242B (zh) | 2018-08-03 |
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