Preparation Antitrypanosomal and Cytotoxic Activities of 22-Hydroxyclerosterol, a New Sterol from Allexis cauliflora (Violaceae)

Yves Oscar D. NGANSO, Igor Eric W. NGANTCHOU, Ernestine NKWENGOUA, Barthelemy NYASSE, Colette DENIER, V�ronique HANNERT and Bernd SCHNEIDER

Scientia Pharmaceutica 79 ( 1 ): 137 - 144 , 2011