Structures of new phenolic glycosides from the seeds of Cucurbita moschata.
A new phenolic glycoside and three known compounds were isolated from the seeds of Cucurbita moschata. The structures of the new compound was elucidated as phenylcarbinyl 5-O-(4-hydroxy)benzoyl-beta-D-apiofuranosyl (1-->2)-beta-D-glucopyranoside on the basis of spectroscopic analysis and chemical evidence. Three known compounds were identified as 1-O-benzyl[5-O-benzoyl-beta-D-apiofuranosyl(1-->2)]-beta-D-glucopyranoside 2, cucurbitosides C 3 and A 4, by comparison of the spectral data with reported data. Compound 2 was isolated from this plant for the first time.
Li
Fa-Sheng
FS
Department of Chemistry, Dalian Medical University, 9 Western Section, Lvshun South Road, Dalian, 116044, P.R. China.
Xu
Jing
J
Dou
De-Qiang
DQ
Chi
Xiao-Feng
XF
Kang
Ting-Guo
TG
Kuang
Hai Xue
HX
D028464:Cucurbita / Q000737:chemistry*; D004187:Disaccharides / Q000737:chemistry* / Q000302:isolation & purification; D006027:Glycosides / Q000737:chemistry* / Q000302:isolation & purification; D019906:Nuclear Magnetic Resonance, Biomolecular; D010226:Parabens / Q000737:chemistry* / Q000302:isolation & purification
D004187:Disaccharides; D006027:Glycosides; D010226:Parabens; C542121:phenylcarbinyl 5-O-(4-hydroxy)benozylapiofuranosyl-1-2-glucopyranoside