HuagongsheHuagongshe Chemistry Print Report · For research reference only
Methanol → 6-(difluoro(6-(1-methyl-1H-pyrazol-4-yl)-[1,2,4]triazolo[4,3-a]pyridin-3-yl)methyl)imidazo[1,2-b]pyridazin-2-amine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Methanol | HCID 887 | — |
| Reactant | Water | HCID 962 | — |
| Reactant | N-(6-(Difluoro(6-(1-methyl-1H-pyrazol-4-yl)-[1,2,4]triazolo[4,3-a]pyridin-3-yl)methyl)imidazo[1,2-b]pyridazin-2-yl)cyclopropanecarboxamide | HCID 56593558 | — |
| Solvent | Hydrochloric Acid | HCID 313 | — |
| Product | 6-(difluoro(6-(1-methyl-1H-pyrazol-4-yl)-[1,2,4]triazolo[4,3-a]pyridin-3-yl)methyl)imidazo[1,2-b]pyridazin-2-amine | HCID 59233070 | 35.4% |
Reaction Steps
A solution of 45 (100 mg) in 3N HCl:50% MeOH:water was heated at 50° C. for 3 hrs. The reaction was concentrated and purified by preparative LCMS to provide the title compound, 6-(difluoro(6-(1-methyl-1H-pyrazol-4-yl)-[1,2,4]triazolo[4,3-a]pyridin-3-yl)methyl)imidazo[1,2-b]pyridazin-2-amine (30 mg) as the TFA salt. 1H NMR (400 MHz, DMSO-d6) δ ppm 3.89 (s, 3 H) 7.46 (br. s., 1 H) 7.51-7.58 (m, 1 H) 7.90 (dd, J=9.47, 1.39 Hz, 1 H) 7.93-7.99 (m, 1 H) 8.04 (d, J=9.60 Hz, 1 H) 8.08 (s, 1 H) 8.39-8.43 (m, 2 H) 8.67 (s, 1 H). ESI-MS:m/z 382.2 (M+H)+.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08178534B2 |
| Source dataset | uspto-grants-2012_05 |
| ORD ID | ord-7daed9ac3efc4b308c7b3f155028616a |
| Source note | uspto-grants-2012_05 |