METHOD FOR PRODUCING ALPHA - AMINO ACID INCLUDING PHOSPHORUS AND PRODUCTION INTERMEDIATES THEREOF
申请人:Minowa Nobuto
公开号:US20090270647A1
公开(公告)日:2009-10-29
A method for efficiently producing L-2-amino-4-(hydroxymethylphosphinyl)-butanoic acid, useful as a herbicide, by a catalytic asymmetric synthesis reaction with a high asymmetric yield. The method includes a step in which a compound represented by the below formula (1) and a benzylamine are reacted in the presence of dehydrating agent, then the resulting mass is reacted with hydrogen cyanide in the presence of an asymmetric catalyst, followed by acid hydrolysis, further followed by elimination of a protective group. [chemical formula 1] (1) (where, R
1
represents a C
1-4
alkyl group.)
SPIRO-LACTAM NMDA RECEPTOR MODULATORS AND USES THEREOF
申请人:NAUREX, INC.
公开号:US20150368253A1
公开(公告)日:2015-12-24
Disclosed are compounds having enhanced potency in the modulation of NMDA receptor activity. Such compounds are contemplated for use in the treatment of conditions such as depression and related disorders. Orally available formulations and other pharmaceutically acceptable delivery forms of the compounds, including intravenous formulations, are also disclosed.
Reaction design in asymmetric catalysis has traditionally been predicated on a structurally robust scaffold in both substrates and catalysts, to reduce the number of possible diastereomeric transition states. Herein, we present the stereochemical dynamics in the Ni(II)-catalyzed diastereoconvergent (3 + 2) cycloadditions of isomerizable nitrile-conjugated nitrones with α-ketoesterenolates. Even in