Colchicinoid glucosides from seedless pods of Thai origin Gloriosa superba.

Three new colchicinoid glucosides, dongduengosides A-C were isolated from seedless pods of Thai origin Gloriosa superba together with colchicoside, colchicine, 2-demethylcolchicine and luteolin 7- O -β- d -glucopyranoside. In addition, colchicine, 2-demethylcolchicine, 3-methylcolchicine, colchicoside, epi -catechin and quercetin 3- O -β- d -glucopyranoside were identified from seeds. The structure determinations were based on physical data and spectroscopic evidence including 1D- and 2D-experiments. This study showed that the different part of seedless pods and seeds provided the major difference in compounds. [ABSTRACT FROM AUTHOR]