InChI=1/C20H22N2O4S/c1-25-17-8-6-15(7-9-17)12-22(16-10-11-27(23,24)14-16)13-20-21-18-4-2-3-5-19(18)26-20/h2-9,16H,10-14H2,1H3/t16-/m1/s1 DCD62F013D44CD2C