HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 539802Generated: October 25, 2026
Trifluoroacetic acid → N-[5-(6-aminoimidazo[2,1-f]pyridazin-2-yl)-2-methyl-phenyl]-2,2-dimethyl-propanamide
https://huagongshe.com/reaction/539802
Participants
| Role | Name | HCID | Charge |
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| Reactant | Trifluoroacetic acid | HCID 6422 | — |
| Reactant | N-(2-methyl-5-(6-(3,4,5-trimethoxybenzylamino)imidazo[1,2-b]pyridazin-2-yl)phenyl)pivalamide | HCID 67983329 | — |
| Product | N-[5-(6-aminoimidazo[2,1-f]pyridazin-2-yl)-2-methyl-phenyl]-2,2-dimethyl-propanamide | HCID 67983095 | 90.2% |
Reaction Steps
A 40-mL vial is charged with N-(2-methyl-5-(6-(3,4,5-trimethoxybenzylamino)imidazo[1,2-b]pyridazin-2-yl)phenyl)pivalamide (0.604 g, 1.2 mmol) and TFA (5 mL) and the mixture is stirred at 50° C. for 16 hours. The reaction mixture is concentrated, taken up in CH3CN and water is added. The mixture is concentrated to form solid from aqueous solution. The mixture is frozen and water is removed on a lyophilizer to afford the title compound (0.350 g). LCMS (m/z)=324.5 [M+H]+, tR=1.96 min.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08871767B2 |
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| Source dataset | uspto-grants-2014_10 |
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| ORD ID | ord-1b9a8b9cbf8b41479662168055907838 |
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| Source note | uspto-grants-2014_10 |
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