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Legal status
Patent not validated
| (51) | INT.CL. | C07D 471/04 | (2006.01) |
| A61P 35/00 | (2018.01) | ||
| A61K 31/519 | (2006.01) | ||
| C07D 471/04 | (2013.01) | ||
| A61P 35/00 | (2006.01) | ||
| A61K 31/519 | (2013.01) |
| (11) | Number of the document | 3372603 |
| (13) | Kind of document | T |
| (96) | European patent application number | 16861556.5 |
| Date of filing the European patent application | 2016-11-02 | |
| (97) | Date of publication of the European application | 2018-09-12 |
| (45) | Date of publication and mention of the grant of the patent | 2022-01-05 |
| (46) | Date of publication of the claims translation |
| (86) | Number | PCT/CN2016/104330 |
| Date | 2016-11-02 |
| (87) | Number | WO 2017/076288 |
| Date | 2017-05-11 |
| (30) | Number | Date | Country code |
| 201510733519 | 2015-11-02 | CN |
| (72) |
FAN, Haisheng , CN
GUO, Xiaowen , CN
HUANG, Luning , CN
GU, Hong , CN
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| (73) |
Zhejiang Huahai Pharmaceutical Co., Ltd ,
Xunqiao
Linhai, Taizhou, Zhejiang 317024,
CN
Shanghai Syncores Technologies Inc. Ltd. , No. 538 Cailun Road, Zhangjiang Hi-Tech Park, Pudong New District,, Shanghai 201203, CN |
| (54) | PREPARATION METHOD FOR PALBOCICLIB FREE BASE CRYSTAL FORM B |
| PREPARATION METHOD FOR PALBOCICLIB FREE BASE CRYSTAL FORM B |