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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2404221Generated: October 31, 2026

Morpholine → 3-(2-Fluoro-4-iodo-phenylamino)-6-morpholin-4-yl-pyridazine-4-carboxylic acid

https://huagongshe.com/reaction/2404221

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMorpholineHCID 8083—
Reactant6-Chloro-3-[(2-fluoro-4-iodophenyl)amino]pyridazine-4-carboxylic acidHCID 24822027—
SolventDiethyl EtherHCID 3283—
SolventDimethylformamideHCID 6228—
Product3-(2-Fluoro-4-iodo-phenylamino)-6-morpholin-4-yl-pyridazine-4-carboxylic acidHCID 24822026—

Reaction Conditions

Temperature135 °C

Reaction Steps

To mixture of 6-chloro-3-(2-fluoro-4-iodo-phenylamino)-pyridazine-4-carboxylic acid (34 mg, 0.09 mmol) in DMF was added morpholine (37.7 mg, 0.43 mmol). The mixture was heated at 135° C. for 3.5 h. The mixture was diluted with ether and extracted with NaOH (1N). The aqueous layer was acidified by concentrated HCl. The desired product was precipitated and was collected by vacuum filtration. LC/MS [5.51 min; 445 (M+1)].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08802703B2
Source datasetuspto-grants-2014_08
ORD IDord-c2f301cd9a8b4dbe9078b54fa4d117f8
Source noteuspto-grants-2014_08