title: New jujubogenin glycosides from Colubrina asiatica.
abstract: Three new jujubogenin glycosides, namely, 3' '-O-acetylcolubrin (1); 3' ',2' "-O-diacetylcolubrin (2), and 3' '-O-acetyl-6' '-O-trans-crotonylcolubrin (3), were isolated from the leaves of Colubrina asiatica, in addition to the known colubrin, rutin, and kaempferol 3-O-rutinoside. Compounds 1-3 were isolated and purified via a combination of chromatographic procedures, and determined structurally using spectroscopic methods.
authors.affiliation: School of Pharmacy, College of Medicine, National Taiwan University, Taipei 100, Taiwan, Republic of China. shoeilee@ha.mc.ntu.edu.tw
authors.forename: S S
authors.initials: SS
authors.lastname: Lee
authors.forename: W C
authors.initials: WC
authors.lastname: Chen
authors.forename: C H
authors.initials: CH
authors.lastname: Chen
mesh_terms: D000107:Acetylation; D002681:China; D006868:Hydrolysis; D009682:Magnetic Resonance Spectroscopy; D010946:Plants, Medicinal / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry* / Q000302:isolation & purification; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013056:Spectrophotometry, Ultraviolet; D017550:Spectroscopy, Fourier Transform Infrared; D014315:Triterpenes
chemical_list: C420905:3'',2'''-O-diacetyl-colubrin; C420906:3''-O-acetyl-6''-O-crotonylcolubrin; C420904:3''-O-acetylcolubrin; D012503:Saponins; D014315:Triterpenes