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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 405807Generated: October 30, 2026

Hydrochloric Acid → HCID 178524703, compound

https://huagongshe.com/reaction/405807

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantLithium HydroxideHCID 3939—
ReactantHCID 178469489HCID 178469489—
SolventMethanol tetrahydrofuran waterHCID 21892291—
ProductHCID 178524703HCID 178524703—

Reaction Steps

To a stirring solution of ethyl 7-(1H-pyrazol-3-yl)imidazo[1,2-a]pyridine-3-carboxylate (62) (103 mg, 0.4 mmol) in THF:MeOH:H2O (3:2:1, 1.6 mL) was added 6N LiOH (0.035 mL). The reaction was stirred at room temperature for 20 minutes. The pH was adjusted between 4-5 with 3N HCl. The resulting mixture was concentrated to yield 7-(1H-pyrazol-3-yl)imidazo[1,2-a]pyridine-3-carboxylic acid (63). MS (m/z) 229.2 (M+1)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08754071B2
Source datasetuspto-grants-2014_06
ORD IDord-8402f3e4032546428dd9be01515c2c5a
Source noteuspto-grants-2014_06