Br[C:2]1[CH:10]=[CH:9][CH:8]=[C:7]2[C:3]=1[C:4]([CH:11]([CH3:13])[CH3:12])=[N:5][NH:6]2.[BH:14]([OH:16])[OH:15]>>[CH:11]([C:4]1[C:3]2[C:2]([B:14]([OH:16])[OH:15])=[CH:10][CH:9]=[CH:8][C:7]=2[NH:6][N:5]=1)([CH3:13])[CH3:12]4-Bromo-3-isopropyl-1H-indazole is converted to the corresponding boronic acid following analogous procedures to that given in the preceding example. 1H NMR (CD3OD) 7.44 (d, 1H), 7.32 (t, 1H), 7.05 (d, 1H), 3.56 (m, 1H), 1.38 (d, 6H). LCMS (m/z): 205.45 (MH)+
Loading…