InChI=1S/C22H27NO4/c1-4-25-20-8-7-15(12-19(20)24)11-18-17-14-22(27-6-3)21(26-5-2)13-16(17)9-10-23-18/h7-8,11-14,23-24H,4-6,9-10H2,1-3H3/b18-11-