HCID 69716734, compound → HCID 69715407, compound

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A solution of 1-benzyl-4-(5-chloro-2-oxo-3-pyridinyl)-N-[(1,1-dimethylethoxy)carbonyl]-L-phenylalanine methyl ester (248 mg, 0.50 mmol) in 4 N HCl in dioxane (10 mL) was stirred for 1 hr and was concentrated. The residue was triturated with ether (15 mL) and was filtered to give 4-(1-benzyl-5-chloro-2-oxo-3-pyridinyl)-L-phenylalanine methyl ester (202 mg, 94%) as a white powder. LR-Electrospray: m/z 1015 (2M+Na, 4 Cl), 519 (M+Na) 514 (M+NH4), 497 (M+H). HRMS: Obs. Mass 496.1774. Calcd. Mass 496.1765 (M+H).

Provenance & Evidence