An objective of the present invention is to provide efficient methods for producing D-β-hydroxyamino acids (formula 2 or 4), such as D-erythro-2-amino-3-cyclohexyl-3-hydroxypropionic acid, which are useful as intermediates in the synthesis of pharmaceutical products and others.
The present invention makes it possible to efficiently produce D-erythro-2-amino-3-cyclohexyl-3-hydroxypropionic acid by cleaving unnecessary L-erythro-2-amino-3-cyclohexyl-3-hydroxypropionic acid in industrially feasible concentrations of DL-erythro-2-amino-3-cyclohexyl-3-hydroxypropionic acid used as starting material by using
Pseudomonas putida
-derived L-phenylserine aldolase.
[EN] PYRAZOLOPYRIMIDINONE COMPOUNDS AND USES THEREOF<br/>[FR] COMPOSÉS DE PYRAZOLOPYRIMIDINONE ET LEURS UTILISATIONS
申请人:ADURO BIOTECH INC
公开号:WO2019055750A1
公开(公告)日:2019-03-21
The present invention relates to pyrazolopyrimidinone compounds. The present invention also relates to pharmaceutical compositions containing these compounds and methods of treating autoimmune, inflammatory, and neurodegenerative diseases by administering these compounds and pharmaceutical compositions to subjects in need thereof. The present invention also relates to the use of such compounds for research or other non-therapeutic purposes.
β-Lactams having a sulfonic acid substituent in the 1-position and one or two substituents as specified in the 4-position and an amine function in the 3-position and their use as antibiotics.
β-lactams having a sulfonic acid substituent in the 1-position and one or two substituents as specified in the 4-position and an amine function in the 3-position, are prepared by sulfonating a corresponding β-lactam having a hydrogen substituent in the 1-position and a protected amino substituent in the 1-position and removing said amino protecting group.
PROCESS FOR PRODUCING OPTICALLY ACTIVE ERYTHRO 3-CYCLOHEXYLSERINES
申请人:Nippon Kayaku Kabushiki Kaisha
公开号:EP1538216A1
公开(公告)日:2005-06-08
The present invention relates to a process in which N-acyl form of DL-erythro 3-substituted serines represented by the following general formula (1):
(wherein, R1 means an alkanoyl group having 1-10 carbons, a benzoyl group, a halogen-substituted alkanoyl group having 1-5 carbons or a halogen-substituted benzoyl group, and R2 means a phenyl group or a cyclohexyl group) is subjected to asymmetrical hydrolysis with L-aminoacylase or D-aminoacylase, thereby giving unreacted N-acyl-D-erythro 3-substituted serine in the case of L-aminoacylase or hydrolyzed D-erythro 3-substituted serine in the case of D-aminoacylase. The D-erythro forms are useful as an intermediate for medicines, for example, known to be useful as an anti-HIV drug (WO 01/40227).