InChI=1/C19H23N3O5S/c1-13-3-5-16(6-4-13)28(25,26)22-10-7-15(8-11-22)18(23)20-21-19(24)17-9-12-27-14(17)2/h3-6,9,12,15H,7-8,10-11H2,1-2H3,(H,20,23)(H,21,24)/f/h20-21H 893FB2FA64B0BEC3