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Legal status
Patent not validated
| (51) | INT.CL. | C07D 453/04 | |
| B01J 31/02 |
| (11) | Number of the document | 2825536 |
| (13) | Kind of document | T |
| (96) | European patent application number | 13761100.0 |
| Date of filing the European patent application | 2013-03-13 | |
| (97) | Date of publication of the European application | 2015-01-21 |
| (45) | Date of publication and mention of the grant of the patent | 2020-06-17 |
| (46) | Date of publication of the claims translation |
| (86) | Number | PCT/US2013/030688 |
| Date | 2013-03-13 |
| (87) | Number | WO 2013/138413 |
| Date | 2013-09-19 |
| (30) | Number | Date | Country code |
| 201261610746 P | 2012-03-14 | US |
| (72) |
XIANG, Bangping, US
YASUDA, Nobuyoshi, US
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| (73) |
Merck Sharp & Dohme Corp.,
126 East Lincoln Avenue, Rahway, NJ 07065-0907,
US
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| (54) | BIS-QUARTERNARY CINCHONA ALKALOID SALTS AS ASYMMETRIC PHASE TRANSFER CATALYSTS |
| BIS-QUARTERNARY CINCHONA ALKALOID SALTS AS ASYMMETRIC PHASE TRANSFER CATALYSTS |