Try searching for...
SCFBio, IIT Delhi
Formula: C18H17NO5 | Mol. Weight: 327.30 g/mol
IUPAC: (1S,2R)-1,2,9-trihydroxy-3,3-dimethyl-2,11-dihydro-1H-pyrano[3,2-a]carbazole-5-carbaldehyde
CC1(C(C(C2=C(O1)C(=CC3=C2NC4=C3C=CC(=C4)O)C=O)O)O)C