HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1591850Generated: October 27, 2026
Hydrochloric Acid → N-[4-(5-cyano-1-methyl-1H-pyrrol-2-yl)-3,5-difluorophenyl]-methanesulfonamide
https://huagongshe.com/reaction/1591850
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Methanesulfonyl chloride | HCID 31297 | — |
| Reactant | 5-(4-amino-2,6-difluorophenyl)-1-methyl-1H-pyrrole-2-carbonitrile | HCID 16050530 | — |
| Solvent | Pyridine | HCID 1049 | — |
| Product | N-[4-(5-cyano-1-methyl-1H-pyrrol-2-yl)-3,5-difluorophenyl]-methanesulfonamide | HCID 16051282 | 45% |
Reaction Steps
A mixture of methanesulfonyl chloride (0.046 mL, 0.66 mmol) and 5-(4-amino-2,6-difluorophenyl)-1-methyl-1H-pyrrole-2-carbonitrile (0.100 g, 0.429 mmol) in pyridine (1.5 mL) was heated to 50° C. for 4 hours. The reaction mixture was acidified with 1N HCl solution and extracted with ethyl acetate. The combined organic layers were dried over magnesium sulfate, and concentrated. The residue was purified by silica gel column chromatography (dichloromethane/acetone, 97/3) to afford the title compound (0.060 g, 45%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07291643B2 |
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| Source dataset | uspto-grants-2007_11 |
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| ORD ID | ord-ebf830a1b77f4c31bda5e9273b862c88 |
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| Source note | uspto-grants-2007_11 |
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