Try searching for...
SCFBio, IIT Delhi
Formula: C20H19NO4 | Mol. Weight: 337.40 g/mol
IUPAC: (9-hydroxy-3,5-dimethyl-11H-pyrano[3,2-a]carbazol-3-yl)methyl acetate
CC1=CC2=C(C3=C1OC(C=C3)(C)COC(=O)C)NC4=C2C=CC(=C4)O