InChI=1/C21H28N2O4S/c24-19(25)13-23-16(11-15-9-10-15)7-4-8-17(21(23)27)22-20(26)18(28)12-14-5-2-1-3-6-14/h1-3,5-6,15-18,28H,4,7-13H2,(H,22,26)(H,24,25)/p-1/t16-,17+,18+/m1/s1/fC21H27N2O4S/h22H/q-1 1D4964B8B32E0599