Stereochemical control of perhydroindanes for the synthesis of cardenolide analogs
作者:Manuel Medarde、Fernando Tomé、Jose Luis López、Esther Caballero、Melchor Boya、Concepción P. Melero、Arturo San Feliciano
DOI:10.1016/s0040-4039(00)78471-1
日期:1994.11
The control of the stereochemistry at C-1 of cis-perhydroindane compounds, required for the synthesis of cardenolide analogs, has been achieved by epimerization of the dithiane derivative at C-5. Molecular modeling of this kind of compounds predicted the higher stability of the C-1-beta-epimer in this and other derivatives, instead of the usually more stable C-1-alpha-epimer in the natural cardenolides and other calculated compounds.