Triterpene Esters: Natural Products from Dorstenia arifolia (Moraceae)

Abstract: The phytochemical study of Dorstenia arifolia Lam. (Moraceae) has led to the identification of 18 triterpenes esterified by fatty acids, five triterpenes without esterification, 12 triterpenes esterified by acetic acid, together with a known furanocoumarin: α-amyrin ( 1 ), β-amyrin ( 2 ) α-amyrin acetate ( 3 ) β-amyrin acetate ( 4 ), α-amyrin octanoate ( 5 ), β-amyrin octanoate ( 6 ), α-amyrin decanoate ( 7 ), β-amyrin decanoate ( 8 ), α-amyrin dodecanoate ( 9 ), β-amyrin dodecanoate ( 10 ), α-amyrin tetradecanoate ( 11 ), β-amyrin tetradecanoate ( 12 ), α-amyrin hexadecanoate ( 13 ), β-amyrin hexadecanoate ( 14 ), glutinol ( 15 ), glutinyl acetate ( 16 ), 11-oxo-α-amyrin ( 17 ), 11-oxo-β-amyrin ( 18 ), 11-oxo-α-amyrin acetate ( 19 ), 11-oxo-β-amyrin acetate ( 20 ) 11-oxo-α-amyrin octanoate ( 21 ) 11-oxo-β-amyrin octanoate ( 22 ), 11-oxo-α-amyrin decanoate ( 23 ), 11-oxo-β-amyrin decanoate ( 24 ) 11-oxo-α-amyrin dodecanoate ( 25 ) 11-oxo-β-amyrin dodecanoate ( 26 ), ursa-9(11),12-dien-3-yl acetate (