HuagongsheHuagongshe Chemistry Print Report · For research reference only
Tetrahydrofuran → N-[5-({2-[(cyclopropylcarbonyl)amino]imidazo[1,2-b]pyridazin-6-yl}oxy)-2-methylphenyl]-4-methyl-1,3-oxazole-5-carboxamide
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Tetrahydrofuran | HCID 8028 | — |
| Reactant | Oxalyl chloride | HCID 65578 | — |
| Reactant | 4-Methyl-1,3-oxazole-5-carboxylic acid | HCID 292311 | — |
| Reactant | N-[6-(3-amino-4-methylphenoxy)imidazo[1,2-b]pyridazin-2-yl]cyclopropanecarboxamide | HCID 57505476 | — |
| Catalyst | Dimethylformamide | HCID 6228 | — |
| Solvent | Dimethylacetamide | HCID 31374 | — |
| Product | N-[5-({2-[(cyclopropylcarbonyl)amino]imidazo[1,2-b]pyridazin-6-yl}oxy)-2-methylphenyl]-4-methyl-1,3-oxazole-5-carboxamide | HCID 57505630 | 85.5% |
Reaction Steps
In the same manner as in Example 259 and using 4-methyl-1,3-oxazole-5-carboxylic acid (77 mg, 0.60 mmol), tetrahydrofuran (10 mL), N,N-dimethylformamide (1 drop), oxalyl chloride (62 μL, 0.72 mmol), N-[6-(3-amino-4-methylphenoxy)imidazo[1,2-b]pyridazin-2-yl]cyclopropanecarboxamide (150 mg, 0.46 mmol) and N,N-dimethylacetamide (7 mL) as starting materials, the title compound (170 mg, 83%) was obtained as a white solid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08034812B2 |
| Source dataset | uspto-grants-2011_10 |
| ORD ID | ord-ff8d67431c1044bca11bb03558019bff |
| Source note | uspto-grants-2011_10 |