(1-Ethoxyvinyl)lithium in the Total Synthesis Thymine Polyoxin C and Uracil Polyoxin C.
作者:Hiroyuki AKITA、Kimio UCHIDA、Cheng Yu CHEN、Keisuke KATO
DOI:10.1248/cpb.46.1034
日期:——
A short path synthesis of the ethyl (methyl 2, 3-O-isopropylidene-β-D-allofuranosid)uronate (5) and ethyl(methyl 2, 3-O-isopropylidene-α-L-talofuranosid)uronate (6) from methyl 2, 3-O-isopropylidene-β-D-ribopentodialdo-1, 4-furanoside (3) using (1-ethoxyvinyl)lithium and its application to the total synthesis of the pyrimidine nucleosides, thymine polyoxin C (1) and uracil polyoxin C (2), are described.
描述了一种短步骤合成的方法,通过使用(1-乙氧基乙烯)锂,将甲基2, 3-O-异丙烯基-β-D-阿洛呋喃苷(3)转化为乙基(甲基2, 3-O-异丙烯基-β-D-阿洛呋喃糖尿酸酯)(5)和乙基(甲基2, 3-O-异丙烯基-α-L-塔罗呋喃糖尿酸酯)(6),并将其应用于胸腺嘧啶多抗生素C (1)和尿嘧啶多抗生素C (2)的总合成。