[EN] PROCESS FOR PREPARATION OF LACTONE DERIVATIVES AND INTERMEDIATES THEREOF<br/>[FR] PROCÉDÉ DE PRÉPARATION DE DÉRIVÉS DE LACTONE ET DE SES INTERMÉDIAIRES
申请人:PHARMARESOURCES SHANGHAI CO LTD
公开号:WO2018032356A1
公开(公告)日:2018-02-22
A novel process for the preparation of lactone derivatives, and intermediates thereof is described. The lactone derivatives are important precursors for the synthesis of anti-hepatitis C virus agents, including sofosbuvir.
Novel ramoplanin derivatives are disclosed. These ramoplanin derivatives exhibit antibacterial activity. As the compounds of the subject invention exhibit potent activities against gram positive bacteria, they are useful antimicrobial agents. Methods of synthesis and of use of the compounds are also disclosed.
Novel cyclic amino acids which are useful in preparing biologically active peptides as well as a process for the preparation of D and L enantiomers of the cyclic amino acids are described where an N-protected derivative of the racemic cyclic amino acid is treated with (-)cinchonidine and the resulting salt resolved into the desired enantiomers, as well as derivatives thereof and valuable intermediates used in the process.
Enantioselective synthesis of 2-oxazolidinones by ruthenium(<scp>ii</scp>)–NHC-catalysed asymmetric hydrogenation of 2-oxazolones
作者:Wei Li、Marco Wollenburg、Frank Glorius
DOI:10.1039/c8sc01869c
日期:——
An efficient synthesis of optically active 4-substituted 2-oxazolidinones by the ruthenium(II)–NHC-catalysed asymmetric hydrogenation of 2-oxazolones was developed. Excellent enantioselectivities (up to 96% ee) and yields (up to 99%) were obtained for a variety of substrates, bearing a range of functional groups and useful motifs. The hydrogenation reaction was successfully scaled up to gram scale
PROCESS FOR THE PREPARATION OF KINASE INHIBITORS AND INTERMEDIATES THEREOF
申请人:Aerie Pharmaceuticals, Inc.
公开号:US20170204065A1
公开(公告)日:2017-07-20
Described are processes for the synthesis of certain compounds, useful for treating diseases, e.g. eye disease, such as glaucoma and ocular hypertension, in a subject.