Patent ID: 8426402
Filing Date: 2013-04-23
Classification: A61K,A61P,C07D,C07K

Abstract:
1. A compound selected from formula (IV) or (V): or a pharmaceutically acceptable salt, optical isomer, racemate, diastereomer, or enantiomer thereof, wherein: the double line Y is selected from —OR, —OCOR′, —OCOOR′, —OCONR′R″, —NR′R″, —NRCOR′, —NRCOP, wherein P is an amino acid or a polypeptide containing between 2 to 20 amino acid units, —SR′, —SOR′, —SO W is C═O; R Z is CR R A and A′ are the same or different and are selected from O, CRR′O, S, CRR′S, NR D and D′ are the same or different and are independently selected from a linear, branched or cyclic alkyl, alkenyl or alkynyl having 1 to 10 carbon atoms, optionally substituted with any one of halogen, —OR L is absent, or is a phenyl group or 3- to 18-membered heterocyclic ring having 1 to 6 heteroatoms selected from O, S, N and P, wherein said phenyl group or 3- to 18-membered heterocyclic ring represented by L is optionally substituted, wherein the substituent is the linking group, or is selected from a linear, branched or cyclic alkyl, alkenyl or alkynyl having from 1 to 10 carbon atoms, optionally substituted with any one of halogen, —OR provided that the compound has no more than one linking group.