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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 217685Generated: October 29, 2026

Methanol → HCID 66935889, compound

https://huagongshe.com/reaction/217685

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantThionyl ChlorideHCID 24386—
ReactantHCID 66935780HCID 66935780—
ProductHCID 66935889HCID 66935889—

Reaction Conditions

Temperature65 °C

Reaction Steps

3-Amino-7,8-dimethyl-[1,2,4]triazolo[4,3-b]pyridazine-6-carboxylic acid hydrochloride (W1.140; 780 mg) was dissolved in methanol (40 ml) and thionyl chloride (1.9 ml) was slowly added dropwise, and then the mixture was stirred at 65° C. After 2.5 h, the mixture was dried and the residue was purified using silica gel (24 g cartridge, dichloromethane/methanol gradient of 0-20% in 60 min). 602 mg of the title compound were obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08198272B2
Source datasetuspto-grants-2012_06
ORD IDord-064e0410f19a48eb84aee21a5605f9eb
Source noteuspto-grants-2012_06