Fatty acid esters of triterpenoids and steroid glycosides from Gambeya africana

• Published in: Planta medica Vol. 68; no. 9; p. 822
• Main Authors: Wandji, Jean, Tillequin, Francois, Mulholland, Dulcie A, Wansi, Jean-Duplex, Fomum, Tanee Z, Fuendjiep, Victorine, Libot, Francine, Tsabang, Nole
• Format: Journal Article
• Language: English
• Published: Germany 01-09-2002
• Subjects: Esters - chemistry; Esters - isolation & purification; Fatty Acids - chemistry; Fatty Acids - isolation & purification; Glycosides - chemistry; Glycosides - isolation & purification; Molecular Structure; Oleanolic Acid - analogs & derivatives; Oleanolic Acid - chemistry; Oleanolic Acid - isolation & purification; Phytosterols - chemistry; Phytosterols - isolation & purification; Plant Extracts - chemistry; Plant Extracts - isolation & purification; Sapotaceae; Seeds - chemistry; Triterpenes - chemistry; Triterpenes - isolation & purification
• ISSN: 0032-0943
• DOI: 10.1055/s-2002-34416

Chemical studies of the CH2 Cl2 -MeOH extract of the seeds of Gambeya africana (Baker) Pierre led to the isolation of 15 compounds. Their structures were established on the basis of spectroscopic methods and chemical reactions. They comprised five new fatty acid esters of erythrodiol, [3 beta-octacosanoyloxy-12-oleanen-28-ol, 3 beta-triacontanoyloxy-12-oleanen-28-ol, 3 beta-dotriacontanoyloxy-12-oleanen-28-ol, 3 beta-tetratriacontanoyloxy-12-oleanen-28-ol and 3 beta-hexatriacontanoyloxy-12-oleanen-28-ol], one new steroidal glycoside, [3 beta-O-beta-xylopyranosylchondrillasterol] and nine known compounds, (3 beta-octadecanoyloxy-12-oleanene, 3 beta-eicosanoyloxy-12-oleanene, 3 beta-docosanoyloxy-12-oleanene, 3 beta-acetoxy-12-oleanene, erythrodiol, 28-hydroxy-beta-amyrone, chondrillasterol, chondrillasterone and 3 beta-O-beta-glucopyranosylchondrillasterol).