InChI=1/C20H22N2O3S/c23-15-9-11-22(12-10-15)13-14-24-16-5-7-17(8-6-16)25-20-21-18-3-1-2-4-19(18)26-20/h1-8,15,23H,9-14H2/p+1/fC20H23N2O3S/h22H/q+1 3D2D93B8BAB3888A