作者:Yuichi Kobayashi、Michitaka Matsuumi
DOI:10.1016/s0040-4039(02)00786-4
日期:2002.6
Stereoselective synthesis of 12-oxo-PDA starting with (1R,3S)-cyclopenten-1,3-diol monoacetate is accomplished, Key transformations are copper-catalyzed installation of the C(1)-C(8) chain onto the cyclopentene ring and construction of the C(14)-C(18) chain. Similarly, 13-epi-12-oxo-PDA was synthesized, and its [chi](D) was used to confirm the purity of 12-oxo-PDA (>95%) obtained by H-1 NMR spectroscopy. In addition, stability of 12-oxo-PDA was investigated to eliminate possibility of epimerization to the 13-epimer. (C) 2002 Elsevier Science Ltd. All rights reserved.