InChI=1S/C19H21NS.C4H6O5/c1-20-11-8-15(9-12-20)19-16-5-3-2-4-14(16)6-7-18-17(19)10-13-21-18;5-2(4(8)9)1-3(6)7/h2-5,10,13H,6-9,11-12H2,1H3;2,5H,1H2,(H,6,7)(H,8,9)