InChI=1/C20H25N3O4S/c1-16-10-12-22(13-11-16)15-18-8-6-17(7-9-18)14-21-28(26,27)20-5-3-2-4-19(20)23(24)25/h2-9,16,21H,10-15H2,1H3/p+1/fC20H26N3O4S/h22H/q+1 CE8C5F3A44B760B9