Glycocerebroside bearing a novel long-chain base from Sagina japonica (Caryophyllaceae).
A new glycocerebroside (1), along with one reported one (2), was isolated from the ethanol extract of Sagina japonica (Caryophyllaceae) and was fully characterized. The structures of two compounds were identified as (2S, 3S, 4R, 8E)-1-(beta-D-glucopyranosyl-3, 4-dihydroxy-2-[(R)-2'- hydroxypalmitoyl]amino-8-heptadecaene (1) and (2S, 3R, 8E)-1-(beta-D-glucopyranosyl-3-hydroxy-2-[(R)-2'-hydroxypalmitoyl]amino-8-octadecaene (2) by using spectroscopic methods ((1)H, (13)C, and 2D NMR, MS) and chemical degradation.
Jia
Ai-Qun
AQ
School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210014 Jiangsu, China. jiaaiqun@gmail.com
Yang
Xu
X
Wang
Wei-Xin
WX
Jia
Yong-Hong
YH
D029748:Caryophyllaceae / Q000737:chemistry*; D002554:Cerebrosides / Q000737:chemistry / Q000302:isolation & purification*; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification; D015394:Molecular Structure
C553621:(2S,3S,4R,8E)-1-(beta-D-glucopyranosyl-3, 4-dihydroxy-2-(R)-2'- hydroxypalmitoyl)amino-8-heptadecaene; D002554:Cerebrosides; D006027:Glycosides