InChI=1/C18H18N2O3S/c1-17-6-7-18(2,23-17)14-13(17)15(21)20(16(14)22)11-5-4-10(9-19)12(8-11)24-3/h4-5,8,13-14H,6-7H2,1-3H3/t13-,14+,17+,18- 7AFC85016455338E