biostudies-literatureZhang HFIC NIH HHS232-5https://www.ebi.ac.uk/biostudies/studies/S-EPMC3947017biostudies-literatureUnknown98Withanolides 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 Jaborosa caulescens var. bipinnatifida (Solanaceae). The structures of 1-2 were elucidated through 2D NMR and other spectroscopic techniques. In addition, the structure of withanolide 1 was confirmed by X-ray crystallographic analysis.PhytochemistryWithanolides from Jaborosa caulescens var. bipinnatifida.PMC39470175 U01 TW 00316-10U01 TW000316Montenegro GDay VWGallagher RJTimmermann BNZhang HCao CMfalseWithanolides from Jaborosa caulescens var. bipinnatifida.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 Jaborosa caulescens var. bipinnatifida (Solanaceae). The structures of 1-2 were elucidated through 2D NMR and other spectroscopic techniques. In addition, the structure of withanolide 1 was confirmed by X-ray crystallographic analysis.2014-01-01T00:00:00Z2014 Feb2025-04-22T08:03:35.726Z2019-03-27T01:23:00ZS-EPMC39470172431474610.1016/j.phytochem.2013.11.005