La 反应 d'une (D) siloxy-4 cyclopentene-2one avec unorganocuivreux puis avec un iodure allylique en present de chlorure de triphenyletain permet la building en une seule etape de scelettes de prostaglandines。Des prostaglandines PGD, PGE, PGF ainsi qu'une prostacycline PGI ont ete synthetisees par cette methode
reducing agents suitable for prostaglandinsynthesis, diisobutylaluminum 2,6-di-t-butyl-4-methylphenoxide (1) is found to be among the best. Reduction of the C-15 ketone with 1 in toluene at −78 °C produced the desired 15S-alcohol in 95% yield with 92% stereoselectivity. The present procedure is suitable for the synthesis of prostaglandin derivatives and related polyfunctional natural products as shown in
nal via the tandem organo-copper conjugate addition—aldol reaction procedure leads directly to a 5,6-dehydroprostaglandin E2 derivative, which can be transformed to a variety of chiral primary prostaglandins in a stereoselective manner.