Diisopropylethylamine → HCID 67099637, compound

Participants

Reaction Conditions

Reaction Steps

DIPEA (0.693 mL, 3.98 mmol, 1.5 eq) was added to a mixture of ethyl 7-fluoro-4-hydroxy-2-oxo-2′,3′,5′,6′-tetrahydro-spiro[naphthalene-1,4′-pyran]-3-carboxylate (850 mg, 2.65 mmol, 1.0 eq) and glycine tert-butyl ester hydrochloride (0.534 g, 3.18 mmol, 1.2 eq) in dioxane (20 mL). The reaction mixture was stirred at 75° C. for 17 hours. The reaction mixture was then cooled to room temperature and concentrated in vacuo to give a yellow solid. The crude solid was suspended in ether and filtered to give the title compound as an off-white solid (703 mg). MS (m/e)=406.2 (M+H)+.

Provenance & Evidence