InChI=1S/C21H41NO5S/c1-19(20(2)27-28(24,25)26)15-11-9-7-5-3-4-6-8-10-12-16-21(23)22-17-13-14-18-22/h19-20H,3-18H2,1-2H3,(H,24,25,26)