Zhang, HuapingCao, Cong-MeiGallagher, Robert J.Day, Victor W.Montenegro, GloriaTimmermann, Barbara N.2017-05-082017-05-082013-12-05Zhang, Huaping et al. “Withanolides from Jaborosa Caulescens Var. Bipinnatifida.” Phytochemistry 98 (2014): 232–235.https://hdl.handle.net/1808/24027Two 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 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.This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License 3.0 (CC BY-NC-ND 3.0 US), which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.http://creativecommons.org/licenses/by-nc-nd/3.0/2, 3-dihydrotrechonolide A2, 3-dihydro-21-hydroxytrechonolide AWithanolideJaborosa caulescens var. bipinnatifidaSolanaceaeArticle10.1016/j.phytochem.2013.11.005PMC3947017openAccess