Compounds of formula:
and pharmaceutically acceptable salts thereof,
wherein
R¹ is H; C₁-C₃ alkyl optionally substituted with one or more fluoro substituents; or C₃-C₅ cycloalkyl; R² is H, or C₁-C₆ alkyl optionally susbtituted with one or more fluoro subtituents or with C₃-C₆ cycloalkyl; R³ is C₁-C₆ alkyl optionally substituted with one or more fluoro substituents or with C₃-C₆ cycloalkyl; C₃-C₅ cycloalkyl; C₃-C₆ alkenyl; or C₃-C₆ alkynyl; R⁴ is C₁-C₄ alkyl optionally substituted with OH, NR⁵R⁶, CN, CONR⁵R⁶ or CO₂R⁷; C₂-C₄ alkenyl optionally substituted with CN, CONR⁵R⁶ or CO₂R⁷; C₂-C₄ alkanoyl optionally substituted with NR⁵R⁶; hydroxy C₂-C₄ alkyl optionally susbtituted with NR⁵R⁶; (C₂-C₃ alkoxy)C₁-C₂ alkyl optionally substituted with OH or NR⁵R⁶; CONR⁵R⁶; CO₂R⁷; halo; NR⁵R⁶; NHSO₂NR⁵R⁶; NHSO₂R⁸; or phenyl or heterocyclyl either of which is optionally substituted with methyl; R⁵ and R⁶ are each independently H or C₁-C₄ alkyl, or together with the nitrogen atom to which they are attached from a pyrrolidinyl, piperidino, morpholino, 4-(NR⁹)-piperazinyl or imidazoyl group wherein said group is optionally substituted with methyl or hydroxy; R⁷ is H or C₁-C₄ alkyl; R⁸ is C₁-C₃ alkyl optionally substituted with NR⁵R⁶;
and R⁹ is H; C₁-C₃ alkyl optionally substituted with phenyl; hydroxy C₂-C₃ alkyl; or C₁-C₄ alkanoyl;
are selective cGMP PDE inhibitors useful in the treatment of cardiovascular disorders such as angina, hypertension, heart failure and atherosclerosis.
式的化合物:
及其药学上可接受的盐类、
其中
R¹ 是 H;任选被一个或多个
氟取代基取代的 C₁-C₃ 烷基;或 C₃-C₅ 环烷基;R² 是 H,或任选被一个或多个
氟取代基取代的 C₁-C₆ 烷基,或 C₃-C₆ 环烷基;R³ 是任选被一个或多个
氟取代基取代的 C₁-C₆ 烷基,或 C₃-C₆ 环烷基;C₃-C₅ 环烷基;C₃-C₆ 烯基;或 C₃-C₆ 烷炔基;R⁴ 是可选被 OH、NR⁵R⁶、CN、CONR⁵R⁶ 或 CO₂R⁷ 取代的 C₁-C₄ 烷基;任选被 CN、CONR⁵R⁶ 或 CO₂R⁷取代的 C₂-C₄ 烯基;任选被 NR⁵R⁶ 取代的 C₂-C₄ 烷酰基;羟基 C₂-C₄烷基,可选被 NR⁵R⁶取代; (C₂-C₃ 烷氧基)C₁-C₂烷基,可选被 OH 或 NR⁵R⁶ 取代;CONR⁵R⁶;CO₂R⁷;卤素;NR⁵R⁶;NHSO₂NR⁵R⁶;NHSO₂R⁸;或任选被甲基取代的苯基或杂环基;R⁵ 和 R⁶ 各自独立地为 H 或 C₁-C₄ 烷基,或与氮原子相连的
吡咯烷基、
哌啶基、吗啉基、4-(NR⁹)-
哌嗪基或
咪唑酰基,其中所述基团任选被甲基或羟基取代;R⁷ 是 H 或 C₁-C₄ 烷基;R⁸ 是 C₁-C₃ 烷基,可选择被 NR⁵R⁶ 取代;
R⁹是H;任选被苯基取代的C₁-C₃烷基;羟基C₂-C₃烷基;或C₁-C₄烷酰基;
是选择性 cGMP
PDE 抑制剂,可用于治疗心血管疾病,如心绞痛、高血压、心力衰竭和动脉粥样硬化。