申请人:Pfizer Limited
公开号:EP0222598A2
公开(公告)日:1987-05-20
1,4-Dihydropyridine anti-ischaemic and antihypertensive agent of the formula:-
or a pharmaceutically acceptable salt thereof,
wherein R is selected from (a) phenyl optionally substituted by 1 or 2 substituents each independently selected from nitro, halo, C₁-C₄ alkyl, C₁-C₄ alkoxy, hydroxy, trifluoromethyl and cyano (b) 1- and 2- naphthyl and (c) benzofuranyl; benzothienyl; pyridyl optionally substituted by methyl, methylthio, cyano or halo; quinolyl; benzoxazolyl; benzothiazolyl; furyl; pyrimidinyl; thiazolyl; 2,1,3-benzoxadiazol-4-yl; 2,1,3-benzothiadiazol-4-yl; and thienyl optionally monosubstituted by halo or C₁-C₄ alkyl;
R¹ and R² are each independently C₁-C₄ alkyl;
X is O or S(O)p where p is 0, 1 or 2;
R³ is H or C₁-C₄ alkyl;
and R⁴ is selected from:-
(i) Het¹ and -CH₂Het¹ where Het¹ is a triazolyl, imidazolyl, imidazolinyl, pyrimidinyl or a partially saturated derivative thereof, pyridyl, furyl, thienyl, oxadiazolyl, thiadiazolyl, triazinyl, thiazolyl, thiazolinyl, -pyrazinyl, pyrrolinyl, tetrazolyl, benzothiazolyl, quinoxalinyl, quinazolinyl or purinyl group, Het¹ being attached to the adjacent carbon atom either by a ring carbon or a ring nitrogen atom, and being optionally substituted by 1 to 3 substituents each selected from C₁-C₄ alkyl, C₁-C₄ alkoxy, halo, hydroxy, oxo, cyano, -(CH₂)nCOOH, -(CH₂)nCOO(C₁-C₄ alkyl), -(CH₂)nCONR⁵R⁶, -NR⁵R⁶ and -SO₂NR⁵R⁶ where n is 0 or 1 and either R⁵ and R⁶ are each independently H or C₁-C₄ alkyl, or R⁵ and R⁶ taken together with the nitrogen atom to which they are attached represent a pyrrolidinyl, piperidino, morpholino, 4-methyl- piperazin-1-yl or 4-formylpiperazin-1-yl group;
(ii) -CH₂OHet², -CH₂SHet², and -CH₂NHHet² where Het² is a group as defined for Het¹ above with the proviso that Het² is attached to the adjacent hetero atom by a ring carbon atom;
(iii) -CH₂N₃;
(iv) -CH₂NR⁵R⁶ where R⁵ and R⁶ are as defined above;
(v) -CH₂-O-(C₁-C₄ alkyl); and
(vi) -(CH₂)m-OH where m is 1 or 2, with the proviso that when m is 2, R³ is H.
式中的 1,4-二氢吡啶抗缺血和抗高血压剂
或其药学上可接受的盐、
其中 R 选自 (a) 任选被 1 或 2 个各自独立选自硝基、卤代、C₁-C₄ 烷基、C₁-C₄ 烷氧基、羟基、三氟甲基和氰基的取代基取代的苯基 (b) 1-和 2-萘基和 (c) 苯并呋喃基;苯并噻吩基;可选择被甲基、甲硫基、氰基或卤素取代的吡啶基;喹啉基;苯并恶唑基;苯并噻唑基;呋喃基;嘧啶基;噻唑基;2,1,3-苯并恶二唑-4-基;2,1,3-苯并噻二唑-4-基;以及可选择被卤素或 C₁-C₄ 烷基单取代的噻吩基;
R¹和R²各自独立地为C₁-C₄烷基;
X 是 O 或 S(O)p,其中 p 是 0、1 或 2;
R³ 是 H 或 C₁-C₄ 烷基;
R⁴ 选自
(i) Het¹ 和-CH₂Het¹,其中 Het¹ 是三唑基、咪唑基、咪唑啉基、嘧啶基或其部分饱和衍生物、吡啶基、呋喃基、噻吩基、噁二唑基、噻二唑基、三嗪基、噻唑基、噻唑啉基、吡嗪基、吡咯啉基、四唑基、苯并噻唑基、喹喔啉基、喹唑啉基或嘌呤基,Het¹ 通过环碳或环氮原子与相邻碳原子相连,并任选被 1 至 3 个各自选自 C₁-C₄ 烷基的取代基取代、C₁-C₄烷氧基、卤素、羟基、氧代、氰基、-(CH₂)nCOOH、-(CH₂)nCOO(C₁-C₄烷基)、-(CH₂)nCONR⁵R⁶、-NR⁵R⁶ 和 -SO₂NR⁵R⁶ 其中 n 为 0 或 1,且 R⁵ 和 R⁶ 各自独立地为 H 或 C₁-C₄ 烷基、或 R⁵ 和 R⁶ 与它们所连接的氮原子一起代表吡咯烷基、哌啶基、吗啉基、4-甲基哌嗪-1-基或 4-甲酰基哌嗪-1-基;
(ii) -CH₂OHet²、-CH₂SHet² 和 -CH₂NHHet²,其中 Het² 是上文 Het¹ 所定义的基团,但 Het² 通过环碳原子连接到相邻杂原子上;
(iii) -CH₂N₃;
(iv) -CH₂NR⁵R⁶ 其中 R⁵ 和 R⁶ 如上文所定义;
(v) -CH₂-O-(C₁-C₄烷基);和
(vi) -(CH₂)m-OH 其中 m 为 1 或 2,但当 m 为 2 时,R³ 为 H。