InChI=1/C15H17FN2O2S/c16-15-4-2-1-3-13(15)11-18-10-9-12-5-7-14(8-6-12)21(17,19)20/h1-8,18H,9-11H2,(H2,17,19,20)/f/h17H2 1EA3ED9830C0891F