2,5,15,18-Tetrakis(1,1-dimethylethyl)-10-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)indolo[3,2,1-de]indolo[1',2',3':1,8][1,4]benzazaborino[2,3,4-kl]phenazaborine 5g

2,5,15,18-Tetrakis(1,1-dimethylethyl)-10-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)indolo[3,2,1-de]indolo[1',2',3':1,8][1,4]benzazaborino[2,3,4-kl]phenazaborine 5g