InChI=1/C16H21N3O2S/c20-14(18-12-5-3-1-2-4-6-12)7-9-19-11-17-15-13(16(19)21)8-10-22-15/h8,10-12H,1-7,9H2,(H,18,20)/f/h18H 27E3B7F542070C8D