Chevalierinoside A: A new isoflavonoid glycoside from the stem bark of Antidesma chevalieri Beille (Euphorbiaceae)

Abstract

Chevalierinoside A (1), a new isoflavonoid glycoside determined as biochanin A 7-O-[a-L-rhamnopyranosyl-1→6-β-D-apiofuranosyl-1→2-β-D-glucopyranoside], together with the known friedelin (2), friedelan-3b-ol (3) and betulinic acid (4), were isolated from the stem bark of Antidesma chevalieri Beille. Their structures were established by direct interpretation of their spectral data, mainly TOF-HRESIMS, 1D-NMR (¹H, ¹³C and DEPT) and 2D-NMR (COSY, ROESY, TOCSY, HSQC and HMBC), and by comparison with the literature.

KEY WORDS: Antidesma chevalieri, Euphorbiaceae, Isoflavonoid glycoside, Chevalierinoside A

Bull. Chem. Soc. Ethiop. 2014, 28(2), 309-314.

DOI: http://dx.doi.org/10.4314/bcse.v28i2.16