Two new isoflavones, pentandrin (1) and pentandrin glucoside (2), were isolated from the stem barks of Ceiba pentandra along with β-sitosterol and its 3-O-β-D-glucopyranoside, which was isolated for the first time from this plant. The structures of these
Ngounou,Meli,Lontsi,Sondengam,Atta-Ur-Rahman,Choudhary, M. Iqbal,Malik, Shahid,Akhtar, Farzana
Two new isoflavones from Ceiba pentandra and their effect on cyclooxygenase-catalyzed prostaglandin biosynthesis
The new isoflavone glucoside vavain 3'-O-β-D-glucoside (1) and its aglycon, vavain (2), were isolated from the bark of Ceiba pentandra, together with the known flavan-3-ol, (+)-catechin. These novel structures were elucidated by one- and two-dimensional N
Noreen, Ylva,El-Seedi, Hesham,Perera, Premila,Bohlin, Lars