Enantioselective syntheses of 3-substituted 4-(alkoxycarbonyl)-2-azetidinones from malic acid
摘要:
DOI:
10.1021/jo00146a020
作为产物:
描述:
L-苹果酸 、 L-malic anhydride trifluoroacetate 以
乙醇 为溶剂,
以to provide in 98.7% yield L-malic acid monoethyl ester melting at about 48° to about 49.5° C.的产率得到苹果酸乙酯(S)-2-羟基丁二酸1-乙酯(苹果酸杂质S)
参考文献:
名称:
Monocyclic beta-lactams and process for the preparation thereof
[EN] PROCESSES FOR THE PREPARATION OF ARGINASE INHIBITORS AND THEIR SYNTHETIC INTERMEDIATES<br/>[FR] PROCÉDÉS DE PRÉPARATION D'INHIBITEURS D'ARGINASE ET LEURS INTERMÉDIAIRES SYNTHÉTIQUES
申请人:INCYTE CORP
公开号:WO2022016195A1
公开(公告)日:2022-01-20
Provided herein are processes and intermediates useful for the preparation of certain compounds, including a compound of formula 21 or formula 22 or a pharmaceutically acceptable salt of either.