Process for preparation of optically active diamine derivative salt
US8901345B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 2, 2013 |
| Grant date | Dec 2, 2014 |
| Priority date | — |
| Expiry date | Jan 2, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/55
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The problem to be solved is to produce, at high yields with high purity, anhydrous crystals of a compound represented by formula (1) that is an important intermediate for preparation of FXa inhibitor compound (X) or a pharmacologically acceptable salt thereof, or a hydrate thereof. The solution thereto is an industrial preparation process that provides, with high purity, anhydrous crystals of a compound represented by the following formula (1), which is an intermediate for the production of FXa inhibitor compound (X) or a pharmacologically acceptable salt thereof, or a hydrate thereof, wherein Boc represents a tert-butoxycarbonyl group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.