InChI=1/C19H20N2OS/c1-13-21-18-6-5-14(15-9-16(11-20)23-12-15)10-17(18)19(22-13)7-3-2-4-8-19/h5-6,9-10,12-13,21H,2-4,7-8H2,1H3/t13-/m1/s1 391DB87B51E20934