InChI=1/C22H27BrN4O/c1-2-27-14-24-26-20(27)17-4-3-5-18(7-17)25-19(28)12-21-8-15-6-16(9-21)11-22(23,10-15)13-21/h3-5,7,14-16H,2,6,8-13H2,1H3,(H,25,28)/t15-,16+,21?,22?/f/h25H 75387633A534E0D3