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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1097307Generated: October 30, 2026

Lithium Hydroxide → HCID 59443498, compound

https://huagongshe.com/reaction/1097307

Reaction equation

Participants

RoleNameHCIDCharge
ReactantLithium HydroxideHCID 3939—
ReactantHCID 25176545HCID 25176545—
SolventHydrochloric AcidHCID 313—
SolventMethanolHCID 887—
SolventMethanol tetrahydrofuran waterHCID 21892291—
ProductHCID 59443498HCID 59443498—

Reaction Steps

3-[3-(2-Phenyl-pyridin-4-yl)-imidazo[1,2-b]pyridazin-7-yl]-benzoic acid ethyl ester (1 eq, 0.119 mmol, 50 mg) (Ex. 42) is dissolved in THF/H2O/MeOH (0.5/0.25/0.25 ml) and LiOH (20 eq, 2.38 mmol, 57 mg) is then added and the reaction is stirred at room temperature for 1 h. The reaction mixture is then diluted with MeOH and HCl (1M) is added. The precipitate is filtered and dried to afford 3-[3-(2-Phenyl-pyridin-4-yl)-imidazo[1,2-b]pyridazin-7-yl]-benzoic acid as a yellow solid which did not require further purification; [M+H]+=393

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08143253B2
Source datasetuspto-grants-2012_03
ORD IDord-9472b84b1d494e1aaafc5f75f0e5fcfb
Source noteuspto-grants-2012_03