InChI=1S/C21H35N3O9S/c1-3-4-5-6-15(25)16(8-10-19(29)33-2)34-12-14(20(30)23-11-18(27)28)24-17(26)9-7-13(22)21(31)32/h3-4,13-16,25H,5-12,22H2,1-2H3,(H,23,30)(H,24,26)(H,27,28)(H,31,32)/b4-3-