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Four New Triterpenoids from Callicarpa kwangtungensis.


ABSTRACT: Four new triterpenoids which were identifed as 2?,3?,6?,19?-tetrahydroxy- oleanolic acid 28-O-?-D-glucopyranoside (1), 2-O-?-D-glucopyranosyloxy-3?,19?-di-hydroxyoleanolic acid (2), 2-O-?-D-glucopyranosyloxy-3?,19?-dihydroxyursolic acid (3), 2?,3?,6?,19?-tetrahydroxyursolic acid 28-O-?-D-glucopyranoside (4), were isolated from the aerial parts of Callicarpa kwangtungensis together with three known triterpenoids identified as 2?,3?,21?-trihydroxyursolic acid 28-O-?-D-glucopyranoside (5), 2?,3?,19?,23-tetrahydroxyoleanolic acid 28-O-?-D-glucopyranoside (6), 2?,3?,19?,23-tetrahydroxyursolic acid 28-O-?-D-glucopyranoside (7). Their structures were elucidated by the combination of mass spectrometry (MS), one and two-dimensional NMR experiments.

SUBMITTER: Zhou GP 

PROVIDER: S-EPMC6272150 | biostudies-literature | 2015 May

REPOSITORIES: biostudies-literature

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Four New Triterpenoids from Callicarpa kwangtungensis.

Zhou Guo-Ping GP   Yu Yan Y   Yuan Ming-Ming MM   Ji Tengfei T   Fu Hui-Zheng HZ   Zhong Rui-Jian RJ  

Molecules (Basel, Switzerland) 20150519 5


Four new triterpenoids which were identifed as 2α,3β,6β,19α-tetrahydroxy- oleanolic acid 28-O-β-D-glucopyranoside (1), 2-O-β-D-glucopyranosyloxy-3α,19α-di-hydroxyoleanolic acid (2), 2-O-β-D-glucopyranosyloxy-3α,19α-dihydroxyursolic acid (3), 2α,3α,6β,19α-tetrahydroxyursolic acid 28-O-β-D-glucopyranoside (4), were isolated from the aerial parts of Callicarpa kwangtungensis together with three known triterpenoids identified as 2α,3β,21β-trihydroxyursolic acid 28-O-β-D-glucopyranoside (5), 2α,3α,19  ...[more]

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