Water → HCID 20598524, compound

Participants

Reaction Steps

To 4-{2-[2-(2-azido-ethyl)-1-benzhydryl-5-chloro-1H-indol-3-yl]-ethylamino}-benzoic acid methyl ester (400 mg, 0.709 mmol) in THF (4 mL) at 0 C was added Ph3P (223 mg, 0.851 mmol) in portions. The reaction mixture was stirred at rt for 11 h and 35° C. for 4 h before water (50 uL) was added and stirring continued overnight. The reaction mixture was diluted with EtOAc, dried with MgSO4 and purified by flash column chromatography (EtOAc to 20%MeOH/EtOAc with 1% Et3N) to give the desired 4-{2-[2-(2-Amino-ethyl)-1-benzhydryl-5-chloro-1H-indol-3-yl]-ethylamino}-benzoic acid methyl ester (201 mg, 53%) as a solid.

Provenance & Evidence