Two Novel Cycloartane-Type Triterpenes from Trichilia casaretti C. DC. (Meliaceae)
Two new triterpenes cycloartane-type, 1.1x1.5 named 24-methylencycloartan-12-oxo-3β,22α-diol and trichiliol, were isolated from the leaves of Trichilia casaretti C.DC.together with three known triterpenes—24-methylencycloart-3β,22-diol, 22,25-dihydrocycloart-23(E)-en-3β-ol, and 22(R)-hydroxycycloart-24-en-3-ol.These compo