InChI=1S/C20H23NO5/c1-24-17-7-4-14(12-16(17)22)6-9-20(23)21-11-10-15-5-8-18(25-2)19(13-15)26-3/h4-9,12-13,22H,10-11H2,1-3H3,(H,21,23)