supported by grants from the National Key Research and Development Program of China(Nos.2018YFA0903200 and 2018YFA0903201);the National Natural Science Foundation of China(No.31761143016);Chang Jiang Scholars Program(GAO Hao,2017)from the Ministry of Education of China;National High-level Personnel of Special Support Program(No.2017RA2259);Guangdong Special Support Program(No.2016TX03R280);Young Elite Scientists Sponsorship Program by China Association of Chinese Medicine(No.QNRC2-B06);Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme(GAO Hao,2014);Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program(No.2017BT01Y036);K.C.Wong Education Foundation(GAO Hao,2016)
A pair of new tirucallane triterpenoid epimers,picraquassins M and N(1 and 2),were isolated from the stems of Picrasma quassioides(D.Don)Benn.Their structures were determined based on comprehensive spectroscopic and X...
financially supported by the National Natural Science Foundation of China(Nos.81322051 and 31400300);the Natural Science Foundation of Jiangsu Province(No.BK20151442);the Project Funded by the Priority Academic Program Development(PAPD) of Jiangsu Higher Education Institutions
Two cyclopeptides, celogentin L(1) and its epimer lyciumin A(2) were firstly isolated from Celosia argentea L.. The planar structures of the two compounds were fully determined by spectroscopic data, including 1 D-, 2...