InChI=1/C16H21N3O4S/c1-12-4-6-13(7-5-12)19-11-8-14(16(19)21)15(20)17-24(22,23)18-9-2-3-10-18/h4-7,21H,2-3,8-11H2,1H3,(H,17,20)/f/h21h,19-20H 772F6AC9FA6AB73E