Dimethylformamide → 5-[5-(Allyl-methyl-amino)-pent-1-ynyl]-6-fluoro-2,3-dihydro-indole-1-carboxylic acid 4-chloro-phenyl ester

Participants

Reaction Steps

A solution of 30 mg (0.066 mmol) of 6-Fluoro-5-(5-methanesulfonyloxy-pent-1-ynyl)-2,3-dihydro-indole-1-carboxylic acid 4-chloro-phenyl ester and 0.1 ml (0.10 mmol) N-methylallylamine in 0.5 ml of DMF was stirred at 80° C. for 2 hours. The mixture was poured into 0.5 M aqueous NaOH and extracted with EtOAc. Drying of the combined organic layers with MgSO4, evaporation of the solvent, and chromatography on silica gel with EtOAc/MeOH/NEt3 10:1:0.1 gave 19 mg (67%) of 5-[5-(Allyl-methyl-amino)-pent-1-ynyl]-6-fluoro-2,3-dihydro-indole-1-carboxylic acid 4-chloro-phenyl ester as a light brown oil, MS: 427 (MH+, 1Cl).

Provenance & Evidence