Pyridine → HCID 57009313, compound

Participants

Reaction Steps

To a solution of 0.962 g (1.562 mmol) of the product of Example 33 in 3mL of DMSO was added 0.505 mL (6.246 mmol) of pyridine followed by 0.120 mL (1.562 mmol) of trifluoroacetic acid and 0.898 (4.685 mmol) of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride. The reaction mixture was stirred at room temperature for 36 h and then diluted with 200 mL of EtOAc. The resulting solution was washed with 0.1N HCl solution, water, saturated NaHCO3 solution and brine, dried over MgSO4, filtered and concentrated in vacuo. The residue, 0.948 g (99%) was used in the next step without purification. Electrospray Mass Spec: 615.4 (M+H)+.

Provenance & Evidence