Formula: C22H26N2O5 | Mol. Weight: 398.50 g/mol
IUPAC: methyl (E)-2-[(3S,6'S,7'S,8'aR)-6'-ethenyl-4-hydroxy-2-oxospiro[1H-indole-3,1'-3,5,6,7,8,8a-hexahydro-2H-indolizine]-7'-yl]-3-methoxyprop-2-enoate
COC=C(C1CC2C3(CCN2CC1C=C)C4=C(C=CC=C4O)NC3=O)C(=O)OC