InChI=1S/C23H35NO7S/c24-18(23(30)31)17-32-20(19(25)13-12-16-22(28)29)14-10-8-6-4-2-1-3-5-7-9-11-15-21(26)27/h2-6,8,10,14,18-20,25H,1,7,9,11-13,15-17,24H2,(H,26,27)(H,28,29)(H,30,31)/b4-2-,5-3-,8-6+,14-10+/t18-,19+,20-/m1/s1