InChI=1/C20H25N3O3S/c1-16-8-10-19(11-9-16)27(25,26)23-13-5-3-7-18(23)14-20(24)22-15-17-6-2-4-12-21-17/h2,4,6,8-12,18H,3,5,7,13-15H2,1H3,(H,22,24)/t18-/m1/s1/f/h22H 4F324D0249575B0E