Chemical constituents from <i>Piper wallichii</i>
Yan-Ni Shi
Lian Yang
Jin-Hua Zhao
Yi-Ming Shi
Yan Qu
Hong-Tao Zhu
Dong Wang
Chong-Ren Yang
Xing-Cong Li
Min Xu
Ying-Jun Zhang
10.6084/m9.figshare.1286777.v3
https://tandf.figshare.com/articles/journal_contribution/Chemical_constituents_from_i_Piper_wallichii_i_/1286777
<div><p>Fifteen known compounds including four triterpenoids (<b>1</b>–<b>4</b>), one sterol (<b>5</b>), one diketopiperazine alkaloid (<b>6</b>) and nine phenolics (<b>7</b>–<b>15</b>) were isolated from the stems of <i>Piper wallichii</i>. Their structures were elucidated by means of spectroscopic analysis, and acidic hydrolysis in case of the 2-oxo-3β,19α,23-trihydroxyurs-12-en-28-oic acid β-D-glucopyranosyl ester (<b>1</b>). The structure of compound <b>1</b> was fully assigned by 1D and 2D NMR experiments for the first time. All isolates were tested for their antibacterial, antifungal, anti-inflammatory and antiplatelet aggregation bioactivities.</p></div>
2015-07-27 08:21:34
phenolic
alkaloid
sterol
analysis
acid
chemical
oxo
acidic
antifungal
2 D NMR experiments
antiplatelet aggregation bioactivities
triterpenoid
spectroscopic
ester
compound
constituent
diketopiperazine
hydrolysis
Piper wallichii