InChI=1/C21H20N2O4S/c1-26-17-7-2-6-16(11-17)20(25)19(23-9-3-5-15(13-23)14-24)21(28)22-12-18-8-4-10-27-18/h2-11,13,24H,12,14H2,1H3,(H-,22,25,28)/f/h22H/b21-19-	36D4729D651BC883