A new cerebroside from Gynura divaricata.
A new cerebroside (1) was isolated from the aerial parts of Gynura divaricata DC., along with five known compounds: kaempferol (2), kaempferol 3-O-glucoside (3), kaempferol 3-O-rhamnosyl(1 --> 6)glucoside (4), beta-sitosteryl glucoside-6'-O-heptadecoicate (5) and 2-(1', 2', 3', 4'-tetrahydroxybutyl)-6-(2'', 3'', 4''-trihydroxybutyl)-pyrazine (6), which are isolated for the first time from this species. The structure of 1 was determined to be 1-O-beta-D-glucopyranosyl-(2S, 3S, 4R, 10Z)-2-[(2'R)-2'-hydroxylignocenoyl-amino]-10-octadecene-1,3,4-triol on the basis of chemical and spectroscopic evidence.
Chen
Lei
L
Department of Pharmacognosy, School of Pharmacy, Second Military Medical University, Shanghai 200433, China.
Wang
Jin-Jiang
JJ
Zhang
Guo-Gang
GG
Song
Hong-Tao
HT
Qin
Lu-Ping
LP
D019659:Asteraceae / Q000737:chemistry*; D002554:Cerebrosides / Q000737:chemistry*; D044949:Kaempferols / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D035261:Plant Components, Aerial / Q000737:chemistry; D013107:Sphingolipids / Q000737:chemistry
D002554:Cerebrosides; D044949:Kaempferols; D013107:Sphingolipids; C006552:kaempferol