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Legal status
Patent not validated
| (51) | INT.CL. | C07D 211/78 | (2006.01) |
| Y02P 20/55 | (2015.11) | ||
| C07C 227/18 | (2006.01) | ||
| C07C 227/18 | (2013.01) | ||
| C07B 53/00 | (2006.01) | ||
| C07D 211/78 | (2013.01) | ||
| C07B 53/00 | (2013.01) |
| (11) | Number of the document | 3733648 |
| (13) | Kind of document | T |
| (96) | European patent application number | 18877299.0 |
| Date of filing the European patent application | 2018-03-06 | |
| (97) | Date of publication of the European application | 2020-11-04 |
| (45) | Date of publication and mention of the grant of the patent | 2022-06-08 |
| (46) | Date of publication of the claims translation |
| (86) | Number | PCT/CN2018/078072 |
| Date | 2018-03-06 |
| (87) | Number | WO 2019/127902 |
| Date | 2019-07-04 |
| (30) | Number | Date | Country code |
| 201711456332 | 2017-12-28 | CN |
| (72) |
QI, Yuxin , CN
LI, Xinfa , CN
XU, Xin , CN
WANG, Baolin , CN
QU, Hu , CN
XIE, Shungen , CN
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| (73) |
Xinfa Pharmaceutical Co., Ltd ,
Huangdian Village
Kenli Town
Kenli County, Dongying, Shandong 257500,
CN
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| (54) | METHOD FOR PREPARING 5R-BENZYLOXYAMINOPIPERIDIN-2S-CARBOXYLIC ACID OR DERIVATIVE THEREOF |
| METHOD FOR PREPARING 5R-BENZYLOXYAMINOPIPERIDIN-2S-CARBOXYLIC ACID OR DERIVATIVE THEREOF |