InChI=1/C16H27BrN2O2/c1-4-15(18)16(13-6-5-7-14(17)12-13)19(8-10-20-2)9-11-21-3/h5-7,12,15-16H,4,8-11,18H2,1-3H3/p+1/t15-,16-/m0/s1/fC16H28BrN2O2/h18H/q+1 BE15A1F218A684E1