(+/-)-15-epi-PGF2α;rac-15-epi-PGF2α;rac-(15R)-9α,11α,15-trihydroxy-prosta-5c,13t-dien-1-oic acid;(+/-)-15-epi-Prostaglandin F 2α;rac-15-epi-PGF(2α);(+/-)-15-epi-prostaglandin-F2α;ent-8,15-diepi-15-F2t-IsoP;(Z)-7-[(1S,2S,3S,5R)-3,5-dihydroxy-2-[(E,3S)-3-hydroxyoct-1-enyl]cyclopentyl]hept-5-enoic acid
A new method for stereospecific construction of the allylic alcohol moiety of prostaglandins, based on application of optically active α-hydroxy aldehydes, is described. In the presence of BF3 .Et2O, lithiated sulphones prepared from Corey aldehyde, and carbonyl compounds give t or only their traces were formed. The addition products , in the form of benzoates, mesylates or free alcohols, were subjected
Total synthesis of prostaglandin-F<sub>2</sub>α, and the 9-O-benzyl derivatives of prostaglandins-F<sub>2</sub>α, -F<sub>1</sub>α, -D<sub>2</sub>, and -D<sub>1</sub>
作者:Richard J. Cave、Roger F. Newton、Derek P. Reynolds、Stanley M. Roberts
DOI:10.1039/p19810000646
日期:——
0.0.2,7]heptan-6-one (3), 3-endo-benzyloxytricyclo-[3.2.0.02,7]heptan-6-one (4) has been used to give the prostaglandin intermediate (14), in which the three hydroxy-functions at C-9, C-11, and C-15 are fully differentiated. Unmasking of the C-9 hydroxy-group gives the 15-silylated PG–F2α(15). The novel 9-O-benzyl derivatives of prostaglandin 5-F2α, -F1α, -D2, and -D1 were also prepared from (14) as