Tert-butoxycarbonylalanine → HCID 68158357, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 4-fluoro-N2-(5-fluoropyridin-2-yl)benzene-1,2-diamine (30 mg, 0.136 mmol), (S)-2-tertbutoxycarbonylaminopropionic acid (28 mg, 0.15 mmol), HOAt (20 mg, 0.15 mmol) and N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide hydrochloride (29 mg, 0.15 mmol) in DCM (5 mL) was stirred at 0° C. for 1 h. Additional (S)-2-tertbutoxycarbonylaminopropionic acid (5 mg), HOAt (4 mg) and N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide hydrochloride (5 mg) were added and stirring continued for 30 min. The reaction mixture was partitioned between DCM and a saturated aqueous solution of NaHCO3. The organic layer was dried and concentrated in vacuo to afford {(S)-1-[4-fluoro-2-(5-fluoropyridin-2-ylamino)phenylcarbamoyl]ethyl}carbamic acid tert-butyl ester as an orange oil. LCMS (Method C): RT 3.51 min [M+H]+ 393.1.

Provenance & Evidence