Regio- and Stereoselective Hydrostannylation of 3-Hydroxy-4-phenoxy-1-butyne: Effective Approach to Intermediates in the Total Synthesis of ω-Aryloxy-prostaglandins
Synthesis of
13,14-Dehydro-15-deoxy-16-hydroxy-16-methyl-17-phenoxyprostaglandin
B1 Ethyl Ester
作者:N. A. Ivanova、G. A. Shavaleeva、M. S. Miftakhov
DOI:10.1134/s1070428020030288
日期:2020.3
3-methyl-3-(trimethylsilyloxy)pent-1-yne to the ketone carbonyl group of ethyl 7-(5-oxocyclopent-1-en-1-yl)heptanoate. The addition reaction was accompanied by the formation of cyclopentenone dimer as minor product. The 1,2-adduct containing a tertiary hydroxy group was oxidized with pyridinium chlorochromate to 13-dehydro-PGB1 ethyl ester.
One-pot synthesis of protected prostaglandins from alkynes and cyclopentenones. In situ generation of higher order cyanocuprates derived from alkenylzirconium intermediates
作者:Kevin A. Babiak、James R. Behling、John H. Dygos、Kathleen T. McLaughlin、John S. Ng、Vincent J. Kalish、Steven W. Kramer、Robert L. Shone
DOI:10.1021/ja00176a080
日期:1990.9
Novel 13,14-Dehydro Analogs of Prostaglandins of the 11-Deoxy Series
作者:N. A. Ivanova、G. A. Shavaleeva、M. S. Miftakhov
DOI:10.1134/s1070428020080035
日期:2020.8
A convergent cuprate synthesis of 11,15-dideoxy-13-dehydro-16-hydroxy-16-methylprostaglandin E(1)and its 17-phenoxy derivative, involving 1,4-conjugation of corresponding copper acetylides to 2-(6-ethoxycarbonylhexyl)cyclopent-2-en-1-one, was implemented. The products were obtained in good yields as a mixture of the 8,12-trans- and 8,12-cis-isomers with a predominant proportion of thetrans-isomers.
BABIAK, KEVIN A.;BEHLING, JAMES R.;DYGOS, JOHN H.;MCLAUGHLIN, KATHLEEN T.+, J. AMER. CHEM. SOC., 112,(1990) N0, C. 7441-7442
作者:BABIAK, KEVIN A.、BEHLING, JAMES R.、DYGOS, JOHN H.、MCLAUGHLIN, KATHLEEN T.+