12-Deoxyroyleanone (1). an abietane diterpenoid with appreciable antileishmanial activity, has been efficiently synthesized fromabieticacid (10; 11 steps for a 25% overall yield).
Regioselective routes towards 14-hydroxyabietane diterpenes. A formal synthesis of immunosuppressant (−)-triptolide from (+)-abietic acid
作者:Enrique Alvarez-Manzaneda、Rachid Chahboun、Faouzia Bentaleb、Esteban Alvarez、M. Angeles Escobar、Said Sad-Diki、Maria José Cano、Ibtissam Messouri
DOI:10.1016/j.tet.2007.07.088
日期:2007.11
Two procedures to introduce an oxygenated function into the C-14 of abietane diterpenes with complete regioselectivity have been developed. Utilizing these, the synthesis of the antileishmanial quinone (−)-12-deoxyroyleanone (1) and a formal synthesis of antitumour and immunosuppressant (−)-triptonide (7) and (−)-triptolide (8) from (+)-abietic acid (13) have been carried out.