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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2250447Generated: October 30, 2026

Hydrochloric Acid → 1-(6-Chloro-benzo[b]thiophen-2-ylmethyl)-5-(2-methoxy-ethoxy)-1H-pyrrolo[2,3-c]pyridine-2-carboxylic acid

https://huagongshe.com/reaction/2250447

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantLithium HydroxideHCID 3939—
Reactant1-(6-Chloro-benzo[b]thiophen-2-ylmethyl)-5-(2-methoxy-ethoxy)-1H-pyrrolo[2,3-c]pyridine-2-carboxylic acid ethyl esterHCID 69226701—
SolventMethanolHCID 887—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
Product1-(6-Chloro-benzo[b]thiophen-2-ylmethyl)-5-(2-methoxy-ethoxy)-1H-pyrrolo[2,3-c]pyridine-2-carboxylic acidHCID 69226844—

Reaction Conditions

Temperature50 °C

Reaction Steps

8 mL of a 1M LiOH solution in water were added to solution of 890 mg (2 mmol) 1-(6-Chloro-benzo[b]thiophen-2-ylmethyl)-5-(2-methoxy-ethoxy)-1H-pyrrolo[2,3-c]pyridine-2-carboxylic acid ethyl ester in 30 mL THF and 15 mL MeOH and the mixture was stirred for 1 h at 50° C. 16 mL of 1N HCl were added, the organic solvent removed in vacuo and the residue extracted with ethyl acetate. The organic phase was dried over MgSO4. After filtration the solvent was evaporated yielding the desired product. Yield: 810 mg.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07317027B2
Source datasetuspto-grants-2008_01
ORD IDord-dc4a66ec97444ac8ab1e15d98774a983
Source noteuspto-grants-2008_01