InChI=1/C15H21FN2O3/c1-3-21-15(20)11-18(9-8-14(19)17-2)10-12-4-6-13(16)7-5-12/h4-7H,3,8-11H2,1-2H3,(H,17,19)/p+1/fC15H22FN2O3/h17-18H/q+1 8421A42BC6216071