A New Method for Installation of Aryl and Alkenyl Groups onto a Cyclopentene Ring and Synthesis of Prostaglandins
作者:Yuichi Kobayashi、Modachur G. Murugesh、Miwa Nakano、Eisuke Takahisa、Shahid B. Usmani、Takayuki Ainai
DOI:10.1021/jo020375y
日期:2002.10.1
establishing the generality of the reaction (Table 2, eqs 6 and 7). Starting with the products of the couplingreaction, syntheses of the prostaglandin intermediates 13 and 14 (for 11-deoxy-PGE(2) and PGA(2)) and Delta(7)-PGA(1) methyl ester (15) were accomplished efficiently. During these investigations, LDA, LiCA, and LHMDS were found to be equally efficient bases for aldol reaction at the alpha' (alpha prime)