Formula: C23H20O7 | Mol. Weight: 408.40 g/mol
IUPAC: (6R)-6-(3-hydroxyprop-1-en-2-yl)-16,17-dimethoxy-2,7,20-trioxapentacyclo[11.8.0.03,11.04,8.014,19]henicosa-1(13),3(11),4(8),9,14,16,18-heptaen-12-one
COC1=C(C=C2C(=C1)C3=C(CO2)OC4=C(C3=O)C=CC5=C4CC(O5)C(=C)CO)OC