Chemical constituents from the roots of Illigera celebica

Phytochemical research on the roots of Illigera celebica led to the isolation of a new aporphine alkaloid, cathafiline B (1), a new butanolide derivative, illigeralactone A (7), together with six known compounds, namely cathafiline (2), cassythincine (3), bulbocapine (4), actinodaphine (5), hernangerine (6) and isolincomolide D (8). The chemical composition of I. celebica was reported for the first time. Compounds 1-3, 6 and 7 showed no α-glucosidase inhibition activity at 100 μg/mL.