Patent ID: 9328122
Filing Date: 2016-05-03
CPC Classification: A61P,C07D

Claim Text:
1. A compound of formula (I), or a pharmaceutically acceptable salt thereof, wherein W is —OSO Z is selected from the group consisting of H, C R R wherein said substituent is selected from the group consisting of halogen, amino, C 1 -C 6 alkyl amino, di(C 1 -C 6 alkyl)amino, nitro, cyano, hydroxyl, C 1 -C 6 alkoxy, C 1 -C 6 haloalkoxy, mercapto and C 1 -C 6 alkylthio; for said aryl, heteroaryl, C 3 -C 7 cycloalkyl or cycloalkenyl, heterocyclyl and nitrogen-containing heterocyclyl, said substituent is also selected from the group consisting of C 1 -C 6 alkyl, hydroxyl C 1 -C 6 alkyl and C 1 -C 6 haloalkyl; wherein said heteroaryl refers to an aromatic ring group having 1-4 heteroatoms in the ring as ring atom(s), the heteroatom is selected from the group consisting of nitrogen, oxygen and sulfur, and the heteroaryl is a monocyclic heteroaryl having 5-7 ring atoms or a bicyclic heteroaryl having 7-11 ring atoms; wherein said heterocyclyl refers to a non-aromatic cyclic group containing 1-4 heteroatoms as ring members, the heteroatom refers to nitrogen, oxygen or sulfur, and the heterocyclyl is a monocyclic heterocyclyl having 4-8 ring atoms or a bicyclic heterocyclyl having 7-11 ring atoms; and wherein when W is —OC(O)—, Z is not methyl, ethyl or propyl.