InChI=1S/C18H27NO7/c1-4-11(2)16(22)26-14-6-8-19-7-5-13(15(14)19)9-25-17(23)18(24,10-20)12(3)21/h4-5,12,14-15,20-21,24H,6-10H2,1-3H3/b11-4+/t12?,14-,15+,18?/m0/s1