InChI=1S/C22H24O5/c1-12(2)5-7-15-21-16(10-18(23)22(15)25-4)17-11-26-19-9-13(24-3)6-8-14(19)20(17)27-21/h5-6,8-10,17,20,23H,7,11H2,1-4H3/t17-,20-/m0/s1