Synthesis of enantiomeric gibberellin analogs from natural isopimarenes
作者:Angelo C. Pinto、Rosângela de A. Epifanio、Wilson Camargo
DOI:10.1016/s0040-4020(01)81869-x
日期:1993.6
Gibberellane, Gibberellins, Isopimarane, Diterpenes. The natural isopimarenes 2–5, isolated from Velloziaceae species, with known absolute stereochemistry, were submitted to chemical transformations and afforded the tetracyclic lactones 10 and 11 with the gibberellane skeleton of the normal series. The 15-oxa-gibberellanes obtained are enantiomeric analogs of the natural gibberellins and this represents