Synthesis of (2S,3S,4S)-2,3-O-isopropylidene-4-(methoxycarbonylmethyl)cyclopentan-1-one
作者:N. A. Ivanova、Z. R. Valiullina、O. V. Shitikova、L. V. Spirikhin、M. S. Miftakhov
DOI:10.1134/s1070428008030044
日期:2008.3
(2S,3S,4S)-2,3-O-Isopropylidene-4-(methoxycarbonylmethyl)cyclopentan-1-one was synthesized starting from D-ribose through methyl (Z)-3-(5-acetyl-2,2-acetoxyacetyl-2,2-dimethyl-1,3-dioxolan-4-yl)prop-2-enoate which was subjected to cyclization in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene, followed by decarboxylation.
(2S,3S,4S)-2,3-O-异丙基烯基-4-(甲氧基羧甲基)环戊酮是以D-核糖为起始材料合成的,合成过程中使用了甲基(Z)-3-(5-乙酰基-2,2-乙酰氧基乙酰基-2,2-二甲基-1,3-二氧杂烷-4-基)丙-2-烯酸酯,该化合物在1,8-二氮杂双环[5.4.0]十一烯存在下发生环化反应,随后再进行脱羧反应。