InChI=1/C21H28N2O5S/c1-2-3-12-28-19-8-10-20(11-9-19)29(26,27)23-14-17(15-23)22-13-21(25)16-4-6-18(24)7-5-16/h4-11,17,21-22,24-25H,2-3,12-15H2,1H3/t21-/m0/s1 B5461E8C1DF4676C