InChI=1S/C15H23NO5S/c1-2-3-4-5-7-10-14(21-22(18,19)20)13-15(17)16-11-8-6-9-12-16/h4-5,7-8,10-11,14H,2-3,6,9,12-13H2,1H3,(H,18,19,20)/b5-4+,10-7-