Stannous Chloride → (S)-2-[4-(4-Amino-phenyl)-thiazol-2-ylcarbamoyl]-pyrrolidine-1-carboxylic acid benzyl ester

Participants

Reaction Steps

400 mg (0.88 mmol) of 2-[4-(4-Nitro-phenyl)-thiazol-2-ylcarbamoyl]-pyrrolidine-1-carboxylic acid benzyl ester was dissolved in 30 mL of 1:1 mixture of EtOH/EtOAc. To this solution was added SnCl2 (0.7 g, 3.1 mmol). Reaction mixture was heated under reflux for 5 hours. After 5 hours reaction mixture was cooled to room temperature and evaporated. It was redissolved in EtOAc (150 mL) and washed using sat. K2CO3. Organic phase was isolated, washed using brine and water and evaporated to dryness to give Compound 5050. MS: 422.1 (M+H+).

Provenance & Evidence