InChI=1S/C19H25NO6/c1-20-8-7-17-10-11(21)14(25-3)16(26-4)19(17,20)6-5-18(17)13(22)9-12(24-2)15(18)23/h9,15,23H,5-8,10H2,1-4H3/t15-,17-,18-,19+/m0/s1