[H][H].[CH3:3][O:4][C:5](=[O:17])[C:6]1[CH:11]=[CH:10][C:9]([CH2:12][N:13]=[N+]=[N-])=[C:8]([F:16])[CH:7]=1>CO>[CH3:3][O:4][C:5](=[O:17])[C:6]1[CH:11]=[CH:10][C:9]([CH2:12][NH2:13])=[C:8]([F:16])[CH:7]=1Hydrogen was passed through a degassed solution of 4-azidomethyl-3-fluorobenzoic acid methyl ester from Example E3.3 (2.11 g, 10 mmol) in methanol containing 10% palladium on carbon for 2 h. The reaction mixture was filtered through Celite® filter agent and the filtrate was concentrated in vacuo to give a colourless oil identified as the title compound (1.51 g, 83%).
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