InChI=1/C23H22N2O4S/c26-30(27,18-7-2-1-3-8-18)25-20-13-17-6-4-5-9-19(17)23(20)24-14-16-10-11-21-22(12-16)29-15-28-21/h1-12,20,23-25H,13-15H2/t20-,23+/m1/s1 C912E9EEF3286DD4