Triterpenes and other constituents from fruits of Enterolobium contortisiliquum (Vell.) Morong (Fabaceae)

Abstract

From the fruits of specimen of Enterolobium contortisiliquum Fabaceae, ten known compounds were isolated, namely seven triterpenes, maslinic acid (1), betulinic acid (2), 3-oxo-β-amyrin (3), ursolic acid (4), β-amyrin (5), lupeol (6) and squalene (7); one steroid, ergosterol peroxide (8); one caffeic acid derivative, ethyl caffeate (9) and the ficaprenol-12 (10). This is the first reported occurrence of triterpenes 1-4 and 7, steroid 8 and ficaprenol-12 in the genus Enterolobium. The structures of the isolated compounds were determined on the basis of their spectral data.