InChI=1/C20H22O5/c1-4-22-15-8-6-5-7-13(15)19-12(2)20(3,21)25-16-10-18-17(9-14(16)19)23-11-24-18/h5-10,12,19,21H,4,11H2,1-3H3/t12-,19+,20+/m0/s1 DF4A9032B3B600ED