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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 905901Generated: October 30, 2026

Alanine methyl ester hydrochloride → HCID 54712169, compound

https://huagongshe.com/reaction/905901

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAlanine methyl ester hydrochlorideHCID 2733257—
ReactantHCID 59340132HCID 59340132—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 54712169HCID 54712169—

Reaction Conditions

Temperature120 °C

Reaction Steps

In a 35 mL sealed vial under N2 was suspended methyl 4-hydroxy-8-methoxy-1-methyl-2-oxo-1,2-dihydroquinoline-3-carboxylate (0.50 g, 1.9 mmol) in 1,4-dioxane (15 mL). To this solution was added L-alanine methyl ester hydrochloride (0.29 g, 2.1 mmol) and the reaction mixture was stirred at 120° C. overnight (18 h). The solution was removed from the heat and filtered over a fine frit funnel to remove any undissolved starting material. The filtrate was concentrated in vacuo and the remaining precipitate was suspended in Et2O, filtered and washed with Et2O and dried to provide a light yellow solid. Yield=0.40 g, 63%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08012968B2
Source datasetuspto-grants-2011_09
ORD IDord-85e764e262694b10878e7810f40c2489
Source noteuspto-grants-2011_09