InChI=1S/C21H35N3O8S/c22-16(21(31)32)8-9-18(27)24-17(20(30)23-13-19(28)29)14-33-15(10-12-26)7-5-3-1-2-4-6-11-25/h3,5,12,15-17,25H,1-2,4,6-11,13-14,22H2,(H,23,30)(H,24,27)(H,28,29)(H,31,32)/b5-3-