Withanolides from Jaborosa laciniata.
Departamento de Química Orgánica and UMYMFOR (CONICET-FCEN), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, C1428EGA Buenos Aires, Argentina.
Six new trechonolide type withanolides (compounds 1- 6), together with trechonolide A, jaborotetrol, and 12- O-methyl jaborosotetrol, were isolated from the aerial parts of Jaborosa laciniata. The structures were elucidated on the basis of spectroscopic methods (1D and 2D NMR, MS).
PMID: 17883258 [PubMed - indexed for MEDLINE]