Formula: C22H28N2O5 | Mol. Weight: 400.50 g/mol
IUPAC: methyl (E)-2-[(3S,6'S,7'S,8'aR)-6'-ethyl-4-hydroxy-2-oxospiro[1H-indole-3,1'-3,5,6,7,8,8a-hexahydro-2H-indolizine]-7'-yl]-3-methoxyprop-2-enoate
CCC1CN2CCC3(C2CC1C(=COC)C(=O)OC)C4=C(C=CC=C4O)NC3=O