A Scalable Total Synthesis of the Antitumor Agents Et‐743 and Lurbinectedin
作者:Weiming He、Zhigao Zhang、Dawei Ma
DOI:10.1002/anie.201900035
日期:2019.3.18
An efficient and scalable approach is described for the totalsynthesis of the marine natural product Et‐743 and its derivative lubinectedin, which are valuable antitumor compounds. The method delivers 1.6 % overall yield in 26 total steps from Cbz‐protected (S)‐tyrosine. It features the use of a common advanced intermediate to create the right and left parts of these compounds, and a light‐mediated
PREPARATION METHOD FOR ECTEINASCIDIN COMPOUND AND INTERMEDIATE THEREOF
申请人:BRIGHTGENE BIO-MEDICAL TECHNOLOGY CO., LTD.
公开号:US20210355132A1
公开(公告)日:2021-11-18
The present invention provides a method for preparing an ecteinascidin compound and an intermediate thereof, and specifically provides a preparation method for a novel compound QT9, and a method of using QT9 to prepare an ecteinascidin compound. The method provided by the present invention has high reaction selectivity and high yield, the obtained compound is easy to purify, and defects in the prior art that multiple intermediates are oily substances, and the reaction selectivity is poor are solved. The method of the present invention is particularly applicable to industrial production.
formal synthesis of ecteinascidin 743 is described. Key features involve the coupling of the multisubstituted tetrahydroisoquinoline and phenylalaninol moieties via a regio- and stereoselective Pictet-Spengler cyclization as well as the subsequent chemoselective MOM protection of the phenol group, which opens a rapid access to the desirable pentacycle. The synthesis successfully delivered the advanced
[EN] PREPARATION METHOD FOR ECTEINASCIDIN COMPOUND AND INTERMEDIATE THEREOF<br/>[FR] PROCÉDÉ DE PRÉPARATION DE COMPOSÉ D'ECTÉINASCIDINE ET D'UN INTERMÉDIAIRE DE CELUI-CI<br/>[ZH] 一种海鞘素化合物及其中间体的制备方法