InChI=1/C16H25BrN2O4/c1-4-6-23-16-13(17)8-12(9-14(16)22-3)10-18-11-15(20)19-5-7-21-2/h8-9,18H,4-7,10-11H2,1-3H3,(H,19,20)/f/h19H CF9C4C1638BF038C