申请人:STERLING WINTHROP INC.
公开号:EP0542371A1
公开(公告)日:1993-05-19
Compounds having the structural formula
wherein
L is N,O or SOn wherein n is 0,1or 2;
L-R¹ is a leaving group, H-L-R¹ is the conjugate acid thereof and,
when L is N, H-L-R¹ has a pKa value less than or equal to 6,
when L is O, H-L-R¹ has a pKa value less than or equal to 8, and
when L is SOn, H-L-R¹ has a pKa value less than or equal to 5;
R₂ is primary or secondary alkyl of two to four carbon atoms, primary alkylamino of one to three carbon atoms, primary alkylmethylamino of two to four carbon atoms, diethylamino or primary alkoxy of one to three carbon atoms; and R₃ is from one to three of a variety of sustituents at any or all of the 5-, 6- and 7-positions;
or a pharmaceutically acceptable acid addition salt thereof if the compound has a basic functional group or a pharmaceutically acceptable base addition salt thereof if the compound has an acidic functional group,
which inhibit the enzymatic activity of proteolytic enzymes, and processes for preparation thereof, method of use thereof in treatment of degenerative diseases and pharmaceutical compositions thereof are disclosed.
结构式如下的化合物
其中
L 是 N、O 或 SOn,其中 n 是 0、1 或 2;
L-R¹为离去基团,H-L-R¹为其共轭酸,且
当 L 为 N 时,H-L-R¹ 的 pKa 值小于或等于 6、
当 L 为 O 时,H-L-R¹ 的 pKa 值小于或等于 8,以及
当 L 为 SOn 时,H-L-R¹ 的 pKa 值小于或等于 5;
R₂ 是 2 至 4 个碳原子的伯或仲烷基、1 至 3 个碳原子的伯烷基氨基、2 至 4 个碳原子的伯烷基甲基氨基、二乙基氨基或 1 至 3 个碳原子的伯烷氧基;R₃ 是位于 5、6 和 7 位置的任一或全部的各种助位基中的 1 至 3 个;
如果化合物具有碱性官能团,则为其药学上可接受的酸加成盐;如果化合物具有酸性官能团,则为其药学上可接受的碱加成盐、
本发明公开了可抑制蛋白水解酶的酶活性的化合物及其制备工艺、用于治疗退行性疾病的方法和药物组合物。