InChI=1/C20H27BrN2O2/c1-15-7-5-6-8-17(15)14-25-20-18(21)11-16(12-19(20)24-4)13-22-9-10-23(2)3/h5-8,11-12,22H,9-10,13-14H2,1-4H3/p+1/fC20H28BrN2O2/h22H/q+1 FDA4C2543CEC756A