InChI=1/C21H25NO5S/c1-27-18-11-7-15(8-12-18)16-9-13-19(14-10-16)28(25,26)22-20(21(23)24)17-5-3-2-4-6-17/h7-14,17,20,22H,2-6H2,1H3,(H,23,24)/p-1/t20-/m1/s1/fC21H24NO5S/q-1 4F0C2B25E22F4380