InChI=1/C14H18N2O5S/c1-4-5-10-21-11-6-8-12(9-7-11)22(19,20)16-14(2,3)13(17)15-18/h6-9,16,18H,10H2,1-3H3,(H,15,17)/f/h15H 9D3E6FACBD2BCFF1