On treatment with trifluoroacetic acid butenolide 14 undergoes N-Boc deprotection and condensation followed by an iminium ion activated intramolecular Diels-Aider cycloaddition to give the (+)-himbacine precursor 11 on reductive work up. Compound 11 was converted into (+)-himbacine in four synthetic steps.
机构:
Univ Atlanta, Off Univ Provost & Execut Vice President Operat, Atlanta, GA 30360 USAUniv Atlanta, Off Univ Provost & Execut Vice President Operat, Atlanta, GA 30360 USA
机构:
Off Univ Provost, Atlanta, GA 30360 USA
Frederick A Treuhaft Fdn, Atlanta, GA 30360 USA
Univ Atlanta, Atlanta, GA 30360 USA
CNRS, F-75005 Paris, FranceOff Univ Provost, Atlanta, GA 30360 USA
机构:
Univ Atlanta, Off Univ Provost & Execut Vice President Operat, Atlanta, GA 30360 USA
CNRS, F-75005 Paris, FranceUniv Atlanta, Off Univ Provost & Execut Vice President Operat, Atlanta, GA 30360 USA