Indonesian Medicinal Plants. XIII. Chemical Structures of Caesaldekarins c, d, and e, Three Additional Cassane-Type Furanoditerpenes from the Roots of Caesalpinia major (Fabaceae). Several Interesting Reaction Products of Caesaldekarin a Provided by N-Bromosuccinimide Treatment

抄録

Following the previous studies on caesaldekarins a (1) and b (2), the chemical structures of three additional cassane-type furanoditerpenes named caesaldekarins c (3), d (4), and e (5), isolated from the roots of Caesalpinia major (Fabaceae) collected in Flores Island, Indonesia, have been elucidated on the bases of physicochemical evidence and chemical derivations. Several interesting NBS(N-bromosuccinimide) reaction products of 1 have been elucidated.