title: New isoflavones from Ceiba pentandra.
abstract: Two new isoflavones, pentandrin (1) and pentandrin glucoside (2), were isolated from the stem barks of Ceiba pentandra along with beta-sitosterol and its 3-O-beta-D-glucopyranoside, which was isolated for the first time from this plant. The structures of these compounds were elucidated with the help of spectroscopic techniques, while the structure of 1 was unambiguously confirmed by single-crystal X-ray diffraction studies.
authors.affiliation: Department of Organic Chemistry, Faculty of Science, University of Yaounde, Cameroon.
authors.forename: F N
authors.initials: FN
authors.lastname: Ngounou
authors.forename: A L
authors.initials: AL
authors.lastname: Meli
authors.forename: D
authors.initials: D
authors.lastname: Lontsi
authors.forename: B L
authors.initials: BL
authors.lastname: Sondengam
authors.lastname: Atta-Ur-Rahman
authors.forename: M I
authors.initials: MI
authors.lastname: Choudhary
authors.forename: S
authors.initials: S
authors.lastname: Malik
authors.forename: F
authors.initials: F
authors.lastname: Akhtar
mesh_terms: D018360:Crystallography, X-Ray; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification*; D007529:Isoflavones / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D014197:Trees / Q000737:chemistry*
chemical_list: D005960:Glucosides; D007529:Isoflavones; C414934:pentandrin; C414935:pentandrin glucoside