Invention Grant
- Patent Title: Crystal of erlotinib base and the preparation method thereof
- Patent Title (中): 厄洛替尼碱水晶及其制备方法
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Application No.: US13814929Application Date: 2011-08-12
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Publication No.: US08653264B2Publication Date: 2014-02-18
- Inventor: Ke Xiang , Min Xu
- Applicant: Ke Xiang , Min Xu
- Applicant Address: CN Zhejiang
- Assignee: Zhejiang Huahai Pharmaceutical Co., Ltd.
- Current Assignee: Zhejiang Huahai Pharmaceutical Co., Ltd.
- Current Assignee Address: CN Zhejiang
- Agency: Wolf, Greenfield & Sacks, P.C.
- Priority: CN201010258627 20100814
- International Application: PCT/CN2011/078352 WO 20110812
- International Announcement: WO2012/022240 WO 20120223
- Main IPC: C07D239/94
- IPC: C07D239/94
Abstract:
A novel crystal of antitumor drug erlotinib base and its preparation method are provided in the present invention. A preparation method of erlotinib hydrochloride with high-purity is also provided in the present invention.
Public/Granted literature
- US20130137867A1 NOVEL CRYSTAL OF ERLOTINIB BASE AND THE PREPARATION METHOD THEREOF Public/Granted day:2013-05-30
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