Patent ID: 9566344
Date: 2017-02-14
CPC Classifications: A61K,A61P,C07D

Claim:
1. A dasatinib and nonlinear configuration polyethylene glycol conjugate shown as formula I wherein Core is the core structure of the nonlinear configuration of polyethylene glycol, selected from residues of pentaerythritol, methylglucoside, sucrose, diethylene glycol, propanediol, glycerol or polyglycerol removed the hydrogen atom from the hydroxyl group; P is a polyethylene glycol residue with a number-average molecular weight of 300-60000 Da; X is selected from single bond, —CH 2 CO—, —CH 2 CH 2 OCO— or —CH 2 CH 2 NHCO—; and i is selected from 3, 4, 6 or 8.