InChI=1S/C23H27N3O4S/c1-23(2)19(22(29)30)26-21(31-23)18(20(28)24-14-16-11-7-4-8-12-16)25-17(27)13-15-9-5-3-6-10-15/h3-12,18-19,21,26H,13-14H2,1-2H3,(H,24,28)(H,25,27)(H,29,30)/t18-,19+,21-/m1/s1