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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 641408Generated: October 30, 2026

Hydrochloric Acid → Lithium (4-oxo-4,5-dihydropyrrolo[2,3,4-ij] isoquinolin-1(3H)-yl)acetate

https://huagongshe.com/reaction/641408

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantLithium HydroxideHCID 3939—
ReactantEthyl (4-oxo-4,5-dihydropyrrolo[2,3,4-if]isoquinolin-1(3H)-yl)acetateHCID 59257910—
SolventEthanolHCID 702—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
ProductLithium (4-oxo-4,5-dihydropyrrolo[2,3,4-ij] isoquinolin-1(3H)-yl)acetateHCID 66636296—

Reaction Steps

To a solution of ethyl (4-oxo-4,5-dihydropyrrolo[2,3,4-ij]isoquinolin-1(31)-yl)acetate from Step G (200 mg, 0.77 mmol) in THF (1 mL), EtOH (1 mL) and H2O (1 mL) was added 1.0 N lithium hydroxide (0.85 mL, 0.85 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=231 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07696192B2
Source datasetuspto-grants-2010_04
ORD IDord-c41b6013c95d4badbd8754d5a1642d4d
Source noteuspto-grants-2010_04