HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 500516Generated: October 30, 2026
Sodium Methoxide → 3-(2-Fluoro-4-iodo-phenylamino)-6-methoxy-pyridazine-4-carboxylic acid
https://huagongshe.com/reaction/500516
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sodium Methoxide | HCID 10942334 | — |
| Reactant | 6-Chloro-3-[(2-fluoro-4-iodophenyl)amino]pyridazine-4-carboxylic acid | HCID 24822027 | — |
| Solvent | Diethyl Ether | HCID 3283 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | 3-(2-Fluoro-4-iodo-phenylamino)-6-methoxy-pyridazine-4-carboxylic acid | HCID 24821966 | — |
Reaction Steps
To solid 6-chloro-3-(2-fluoro-4-iodo-phenylamino)-pyridazine-4-carboxylic acid (34 mg, 0.09 mmol) in DMF was added NaOMe (0.43 mmol, 0.5 M in MeOH). The mixture was heated at 135° C. for 3 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 [8.08 min; 390 (M+1)].
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07772233B2 |
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| Source dataset | uspto-grants-2010_08 |
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| ORD ID | ord-85d146ab88da45308c0ff7b576afc8a6 |
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| Source note | uspto-grants-2010_08 |
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