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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 641394Generated: October 30, 2026

Hydrochloric Acid → Lithium (4-oxo-2a,3,4,5-tetrahydropyrrolo[4,3,2-de]quinolin-1(2H)-yl)acetate

https://huagongshe.com/reaction/641394

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthanolHCID 702—
ReactantLithium HydroxideHCID 3939—
ReactantEthyl(4-oxo-2a,3,4,5-tetrahydropyrrolo[4,3,2-de]quinolin-1(2h)-yl)acetateHCID 59257825—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
ProductLithium (4-oxo-2a,3,4,5-tetrahydropyrrolo[4,3,2-de]quinolin-1(2H)-yl)acetateHCID 66636292—

Reaction Steps

To a solution of ethyl (4-oxo-2a,3,4,5-tetrahydropyrrolo[4,3,2-de]quinolin-1(2H)-yl)acetate, enantiomer B, from Step E (55 mg, 0.211 mmol) in THF (1 mL), EtOH (1 mL) and H2O (1 mL) was added 1.0 N lithium hydroxide (0.232 mL, 0.232 mmol). After 15 min, 1 N aqueous HCl was added to adjust the solution to pH 7 and the mixture was concentrated in vacuo to give the title compound. MS: m/z=233 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07696192B2
Source datasetuspto-grants-2010_04
ORD IDord-ed1fea94a1cf4813949a675a4bf4f8df
Source noteuspto-grants-2010_04