METHOD FOR PRODUCING INHIBITOR OF ACTIVATED BLOOD COAGULATION FACTOR X (FXA)
申请人:DAIICHI SANKYO COMPANY, LIMITED
公开号:US20170050983A1
公开(公告)日:2017-02-23
An object of the present invention is to provide a novel method for producing a compound, a salt thereof, or a hydrate of the compound or the salt, which is an FXa inhibitor. The object can be attained by a production method in which a production method via a compound represented by formula (1-1), etc., from a compound represented by the following formula (1-x), etc., is used for a method for producing a compound represented by the following formula (X), etc. [wherein X represents a halogen atom or the like, and R
1
represents an optionally substituted phenyl group].
Processes for the Preparation of Edoxaban and Intermediates Thereof
申请人:Apotex Inc.
公开号:US20180179226A1
公开(公告)日:2018-06-28
The present invention provides processes for the preparation of Edoxaban (1) and salts thereof, as well as intermediates thereof. In particular, intermediate compounds and/or salts of the Formulae (3), (4), (6-A), (7-A), (8-A), (9-A) and (10-AS) are provided.
METHOD FOR PRODUCING (1S,4S,5S)-4-BROMO-6-OXABICYCLO[3.2.1]OCTAN-7-ONE
申请人:DAIICHI SANKYO COMPANY, LIMITED
公开号:US20150353577A1
公开(公告)日:2015-12-10
It is an object of the present invention to provide a method for efficiently producing (1S,4S,5S)-4-bromo-6-oxabicyclo[3.2.1]octan-7-one (1), which is important as an intermediate compound for the production of an FXa-inhibiting compound. A method for producing (1S,4S,5S)-4-bromo-6-oxabicyclo[3.2.1]octan-7-one (1), which comprises treating an (R)-α-phenylethylamine salt of (S)-3-cyclohexene-1-carboxylic acid with 1,3-dibromo-5,5-dimethylhydantoin or N-bromosuccinimide in a solvent.