Fatty acid Glycosides from the Roots of Ricinus Communis L.

Phytochemical investigation of the roots of Ricinus communis L.  (Euphorbiaceae), used to cure  lumbago and toothache, led to the isolation of acyl glycosides characterized as n-octadec-9-enoyl β-D-glucopyranoside (4), n- octadecanoyl-b-D-glucopyranoside (5), n -docosany1-β-D-gluco- pyranoside (6), n-hexadecanoyl β-D-glucuranopyranoside (7) and n-octadecanoyl- β- arabinopyranosyl – (2→1″) – β- arabinopyranoside (9), a trisaccharide β-D-glucuranopyranosyl-(2→1)-β-D-arabinopyranosyl-(2→1) -β-D-arabinopyranoside (8), a tetraglycoside β- D- glucopyranosyl- (2®1)- β - D- arabinopyranosyl-(2®1)-β- D- arabinopyranosyl - (2®1)- β -D-arabinopyranoside (10), a triterpenic glucoside α-amyrin β-D-glucopyranoside (1) and two steroidal glycosides viz., stigmasterol β-L-arabinopyranoside(2) and β-sitosterol β-D-glucopyranoside(3). The structures of all these glycosides, isolated from the roots for the first time,  have been characterized on the basis of spectral data analysis and chemical reactions.