Abstract
From the leaves of Sapium insigne (ROYLE) BENTH. ex HOOK. fil., two new phorbol derivatives, such as 16-hydroxyphorbol-16-acetate (4) and 4β-deoxy-16-hydroxyphorbol-16-acetate (5) along with twelve known phenolic compounds such as 3-O-caffeoyl quinic acid (1), 1-O-galloyl-β-D-glucose (2), 1,3-di-O-galloyl-β-D-glucose (3), rutin (6), 1,3,4,6-tetra-O-galloyl-β-D-glucose (7), quercetin (8), guaijaverin (9), nicotiflorin (10), scopolin (11), methyl gallate (12), corilagin (13) and 1,3,6-tri-O-galloyl-β-D-glucose (14) were isolated. All of these compounds have been isolated for the first time from this plant.