InChI=1/C16H21N2O2S/c1-11-9-12(2)18(14(4)13(11)3)10-15-5-7-16(8-6-15)21(17,19)20/h5-9H,10H2,1-4H3,(H2,17,19,20)/q+1/f/h17H2 A2701DB23B613F70