2-Saccharinylmethyl heterocyclic carboxylates useful as proteolytic enzyme inhibitors and pharmaceutical compositions containing them
申请人:STERLING WINTHROP INC.
公开号:EP0550111A1
公开(公告)日:1993-07-07
4-R⁴-R⁵-2-Saccharinylmethyl heterocyclic carboxylates, having the formula:
wherein:
Het is a 5- or 6-membered monocyclic heterocycle or a 9- or 10-membered bicyclic heterocycle containing from 1 to 2 heteroatoms selected from oxygen, nitrogen and sulfur or said heterocycles substituted by from one to three, the same or different, members of the group consisting of lower-alkyl, perfluorolower-alkyl, lower-alkoxy, oxo, phenyl, halogen, and -O-(C₂-C₁₀ alkylene)-N=B where N=B is dilower-alkylamino, 1-pyrrolidinyl, 1-piperidinyl, 4-morpholinyl, 1-piperazinyl, or 4-lower-alkyl-1-piperazinyl;
R⁴ is hydrogen, halogen , lower-alkyl, perfluorolower-alkyl, perchlorolower-alkyl, lower-alkenyl, lower-alkynyl, cyano, carboxamido, amino, lower-alkylamino, dilower-alkylamino, lower-alkoxy, benzyloxy, lower-alkoxycarbonyl, hydroxy or phenyl; and
R⁵ is hydrogen or from one to two substituents in any of the 5-, 6- or 7-positions.
The compounds of the present invention inhibit the activity of serine proteases, specifically human leukocyte elastase and the chymotrypsin-like enzymes, and are thus useful in the treatment of degenerative disease conditions such as emohysema, rheumatoid arthritis, pancreatitis, cystic fibrosis, chronic bronchitis, adult respiratory distress syndrome, inflammatory bowel disease, psoriasis, bullous pemphigoid and alpha-1-antitrypsin deficiency.
4-R⁴-R⁵-2-糖精甲基杂环羧酸盐,其化学式为
其中
Het 是 5 或 6 元单环杂环或 9 或 10 元双环杂环,其中含有 1 至 2 个选自氧、氮和硫的杂原子,或所述杂环被 1 至 3 个相同或不同的杂原子取代、由低级烷基、全氟低级烷基、低级烷氧基、氧代、苯基、卤素和-O-(C₂-C₁₀亚烷基)-N=B 组成的组中的成员,其中 N=B 是稀低级烷基氨基、1-吡咯烷基、1-哌啶基、4-吗啉基、1-哌嗪基或 4-低级烷基-1-哌嗪基;
R⁴ 是氢、卤素、低级烷基、全氟低级烷基、全氯低级烷基、低级烯基、低级炔基、氰基、羧酰胺基、氨基、低级烷基氨基、稀释低级烷基氨基、低级烷氧基、苄氧基、低级烷氧基羰基、羟基或苯基;以及
R⁵ 是氢或 5、6 或 7 位上的一至两个取代基。
本发明的化合物可抑制丝氨酸蛋白酶的活性,特别是人白细胞弹性蛋白酶和糜蛋白酶样酶,因此可用于治疗退行性疾病,如肺气肿、类风湿性关节炎、胰腺炎、囊性纤维化、慢性支气管炎、成人呼吸窘迫综合征、炎症性肠病、银屑病、大疱性类天疱疮和α-1-抗胰蛋白酶缺乏症。