Trimethyl borate → 1H-Indole-1-carboxylic acid, 2-borono-5-[[4-[(1,1-dimethylethoxy)carbonyl]-1-piperazinyl]sulfonyl]-, 1-(1,1-dimethylethyl) ester (9CI)

Reaction equation

[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][N:11]([S:14]([C:17]2[CH:18]=[C:19]3[C:23](=[CH:24][CH:25]=2)[N:22]([C:26]([O:28][C:29]([CH3:32])([CH3:31])[CH3:30])=[O:27])[CH:21]=[CH:20]3)(=[O:16])=[O:15])[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[Li]C(C)(C)C.C[O:39][B:40](OC)[O:41]C>C1COCC1>[C:29]([O:28][C:26]([N:22]1[C:23]2[C:19](=[CH:18][C:17]([S:14]([N:11]3[CH2:12][CH2:13][N:8]([C:6]([O:5][C:1]([CH3:4])([CH3:3])[CH3:2])=[O:7])[CH2:9][CH2:10]3)(=[O:16])=[O:15])=[CH:25][CH:24]=2)[CH:20]=[C:21]1[B:40]([OH:41])[OH:39])=[O:27])([CH3:32])([CH3:31])[CH3:30]