A CRYSTAL FORM OF NEPTINIB di-P-METHYLBENZENESULFONATE, PREPARATION METHOD THEREOF, AND PHARMACEUTICAL COMPOSITION CONTAINING SAME
申请人:SHENZHEN NEPTUNUS PHARMACEUTICAL RESEARCH INSTITUTE CO., LTD.
公开号:US20170342037A1
公开(公告)日:2017-11-30
Provided is a composition of N-[4-[(3-chloro-4-fluorophenyl)amino]-7-[3-(ethoxy)-6-quinazolinyl]-4-(dimethylamino)-2-butenamide p-toluene sulfonate 1.5 hydrate α-polymorph. The α-polymorph has a stable form, a defined melting point, a good chemical stability, and a good endurance to high temperature and light irradiation, and is suitable for pharmaceutical use.