InChI=1/C13H18N2O5S/c1-20-10-4-6-11(7-5-10)21(18,19)15-13(12(16)14-17)8-2-3-9-13/h4-7,15,17H,2-3,8-9H2,1H3,(H,14,16)/f/h14H 79A3406E7F93BFA8