InChI=1S/C22H24O5/c1-15-4-5-16(12-21(15)26-2)6-9-18(23)14-19(24)10-7-17-8-11-20(25)22(13-17)27-3/h4-5,7-8,10-14,23,25H,6,9H2,1-3H3/b10-7+,18-14-