Total synthesis of the didemnins - 1. synthesis of the peptolide ring
作者:U Schmidt、M Kroner、H Griesser
DOI:10.1016/0040-4039(88)85084-6
日期:1988.1
The 23-membered peptolide ring of the didemnins is formed in a two phase cyclization of a linear ω-amino-pentafluorophenyl ester in 70% yield without high dilution. (2,4)-2,5-dimethyl-4-hydroxy-3-oxohexanoic acid (Hip) and (3,4,5)-isostatine are synthesized by acylations of trimethylsilyl malonates.
二羟肌酐的23元肽环是在线性ω-氨基-五氟苯基酯的两相环化反应中形成的,产率为70%,无需高稀释度。(2 ,4 )-2,5-二甲基-4-羟基-3-氧代己酸(HIP)和(3 ,4 ,5 )-isostatine由三甲基硅烷丙二酸酯酰化合成。