18-Acetoxywithanolides from Physalis chenopodifolia1.
Five new withasteroids, physachenolides A - E were isolated from the acetone and methanol extracts of leaves, flowers and stems of Physalis chenopodifolia Lam. The structural assignments of these compounds were based on spectral evidence. The absolute configuration of physachenolide A was established by X-ray analysis.
Maldonado
Emma
E
Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Coyoacán, México. emmaldonado@correo.unam.mx
Torres
Fernando R
FR
Martínez
Mahinda
M
Pérez-Castorena
Ana L
AL
D004875:Ergosterol / Q000031:analogs & derivatives* / Q000737:chemistry*; D035264:Flowers; D006801:Humans; D009682:Magnetic Resonance Spectroscopy; D032321:Physalis; D008517:Phytotherapy; D010936:Plant Extracts / Q000737:chemistry*; D018515:Plant Leaves; D018547:Plant Stems; D054358:Withanolides; D014961:X-Ray Diffraction
D010936:Plant Extracts; D054358:Withanolides; C010376:withanolide D; D004875:Ergosterol