InChI=1S/C21H35N3O7S/c1-2-3-4-5-6-7-8-15(11-12-25)32-14-17(20(29)23-13-19(27)28)24-18(26)10-9-16(22)21(30)31/h6-7,12,15-17H,2-5,8-11,13-14,22H2,1H3,(H,23,29)(H,24,26)(H,27,28)(H,30,31)/b7-6-