InChI=1S/C21H35N3O9S/c1-33-19(29)11-14(7-5-3-2-4-6-10-25)34-13-16(20(30)23-12-18(27)28)24-17(26)9-8-15(22)21(31)32/h5,7,14-16,25H,2-4,6,8-13,22H2,1H3,(H,23,30)(H,24,26)(H,27,28)(H,31,32)/b7-5-