Synthesis of the four diastereoisomers of 3-thymine-1-(tbutoxycarbonyl)aminocyclopentane-1-carboxylic acid
作者:Nicola M. Howarth、Laurence P.G. Wakelin、David M. Walker
DOI:10.1016/s0040-4039(02)02696-5
日期:2003.1
Synthetic routes to all four diastereoisomers of 3-thymine-1-(tbutoxycarbonyl)aminocyclopentane-1-carboxylic acid have been developed starting from the commercially available (S)-dimethyl malate. The key step in the synthesis involves dialkylation of N-(diphenylmethylene)glycine ethyl ester with 1,4-diiodo-2(S)-trityloxybutane.
从市售的(S)-苹果酸二甲酯开始开发了3-胸腺嘧啶-1-(叔丁氧羰基)氨基环戊烷-1-羧酸的所有四个非对映异构体的合成路线。合成中的关键步骤涉及将N-(二苯基亚甲基)甘氨酸乙酯与1,4-二碘-2-(S)-三苯甲基氧丁烷进行二烷基化。