Process for preparation of lactone derivatives and intermediates thereof
申请人:PHARMARESOURCES (SHANGHAI) CO., LTD.
公开号:US10611739B2
公开(公告)日:2020-04-07
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.
PROCESS FOR PREPARATION OF LACTONE DERIVATIVES AND INTERMEDIATES THEREOF
申请人:PHARMARESOURCES (SHANGHAI) CO., LTD.
公开号:US20190210981A1
公开(公告)日:2019-07-11
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.
Expedient synthesis of α,α-dimethyl-β-hydroxy carbonyl scaffolds via Evans’ aldol reaction with a tertiary enolate
作者:Joshawna K. Nunnery、Takashi L. Suyama、Roger G. Linington、William H. Gerwick
DOI:10.1016/j.tetlet.2011.03.126
日期:2011.6
(DHOYA) and several variants, which are increasingly common fragments encountered in bioactive marine cyanobacterial metabolites, was developed. These fragments were obtained in three steps via a tertiary aldolreaction utilizing an Evans’ chiral auxiliary to afford the desired stereochemistry at the β-hydroxy carbon. Thus far, this methodology has been successfully applied in determination of the absolute