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Planta Med 2013; 79 - PN97
DOI: 10.1055/s-0033-1348778
DOI: 10.1055/s-0033-1348778
Withanolides from Jaborosa caulescens
Two new withanolides, 2,3-dihydrotrechonolide A 1 and 2,3-dihydro-21-hydroxytrechonolide A 2, were isolated along with two known withanolides, trechonolide A 3 and jaborosalactone 39 4, from the aerial parts of Jaborosa caulescens Gillies & Hook (Solanaceae). Their structures were elucidated through 2D NMR and other spectroscopic techniques. In addition, the structure of 1 was confirmed by X-ray crystallographic analysis.