InChI=1S/C16H23NO7/c1-9(4-2-5-10-6-3-7-17-8-10)23-16-13(20)11(18)12(19)14(24-16)15(21)22/h3,6-9,11-14,16,18-20H,2,4-5H2,1H3,(H,21,22)