Two new constituents from Rheum sublanceolatum.
The chemical investigation of Rheum sublanceolatum has led to the isolation of two new constituents, the structures of which were identified on the basis of physical and spectroscopic analysis as 2-acetyl-3-methyl-6,8-dihydroxy-2,3,4,4-tetrahydronaphthalene-1-one-6-O-beta-D-glucopyranoside (1) and 2,5-dimethyl-7-hydroxychromone-7-O-beta-D-(6'-O-galloyl)-glucopyranoside (2).
Xiang
Lan
L
Department of Biological Sciences and Biotechnology, Tsinghua University, Beijing 100084, China. xianglan02@mail.tsinghua.edu.cn
Liu
Xue-Hui
XH
Fan
Guo-Qiang
GQ
Cui
Yu-Xin
YX
Du
Li-Jun
LJ
Zheng
Jun-Hua
JH
D002867:Chromones / Q000737:chemistry* / Q000302:isolation & purification*; D005960:Glucosides / Q000737:chemistry* / Q000302:isolation & purification*; D009281:Naphthalenes / Q000737:chemistry* / Q000302:isolation & purification*; D012250:Rheum / Q000737:chemistry*; D013057:Spectrum Analysis
C504837:2,5-dimethyl-7-hydroxychromone-7-O-beta-D-(6'-O-galloyl)-glucopyranoside; C504836:2-acetyl-3-methyl-6,8-dihydroxy-2,3,4,4-tetrahydronaphthalene-1-one-6-O-beta-D-glucopyranoside; D002867:Chromones; D005960:Glucosides; D009281:Naphthalenes