InChI=1/C21H22N2O4S/c1-3-25-12-11-23-19-14(2)7-6-10-18(19)28-21(23)22-20(24)17-13-26-15-8-4-5-9-16(15)27-17/h4-10,17H,3,11-13H2,1-2H3/t17-/m1/s1 D23CA41A33B29041