TETRAHYDROFURO (3, 2 -B) PYRROL- 3 -ONE DERIVATIVES AS INHIBITORS OF CYSTEINE PROTEINASES

摘要

A compound of formula (I), or a pharmaceutically acceptable salt, hydrate, complex or pro-drug thereof, wherein one of R1 and R2 is H, and the other is selected from C1-8-alkyl, C3-6-cycloalkyl and C1-8-alkyl-C5-10-aryl; R3 is selected from tert-butylmethyl, zso-propylmethyl, sec- butyl, tert-butyl, cyclopentyl, cyclohexyl and 1-methylcyclopentyl; R9 is selected from the following: wherein: R4 is selected from C1-8-alkyl and C3-8-cycloalkyl; G is selected from: ) CH, ) CMe and N; E is selected from: O, S, ) SO2, )NH, )NMe and N-oxide ()N->O); J and R are independently selected from: )CH, N and N-oxide ()N-^O); and R41 is selected from amino, methylamino, dimethylamino, isopropylamino, isopropyl(methyl)amino, cyclopropylamino, cyclopropyl(methyl)amino, cyclopentylamino, morpholino, piperidin-1-yl, piperidin-1-ylmethyl, morpholinomethyl, 4-methylpiperazin-l-yl, 4-(2-methoxyethyl)piperazin-l-yl, 1- mofholinoethyl, l-(dimethylamino)ethyl, l-(methylamino)ethyl, 4-fluoro-l- methylpyrrolidin-2-yl, 4,4-difluoropiperidin-l-yl, piperidin-4-yl, l-methylpiperidin-4- yl, pyridin-3-ylamino, pyridin-2-ylamino, l-methylpyrrolidin-3-yl, methyl, isopropyl. The invention further relates to pharmaceutical compositions comprising compounds of formula (I), and the use of such compounds in the treatment of various diseases.