HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → (S)-6-Chloro-4-(5-(2-methylpiperazin-1-yl)pyridin-2-ylamino)pyridazin-3(2H)-one
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | (S)-tert-Butyl 4-(6-(6-Chloro-3-oxo-2-((2-(trimethylsilyl)ethoxy)-methyl)-2,3-dihydropyridazin-4-ylamino)pyridin-3-yl)-3-methylpiperazine-1-carboxylate | HCID 86684484 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | (S)-6-Chloro-4-(5-(2-methylpiperazin-1-yl)pyridin-2-ylamino)pyridazin-3(2H)-one | HCID 86684485 | — |
Reaction Steps
A 50-mL round-bottomed flask was charged with 253b (551 mg, 1.0 mmol), concentrated HCl (2 mL), and methanol (10 mL). The mixture was stirred at room temperature overnight. It was then concentrated under reduced pressure to afford 253c, which was used directly in the next step without further purification. MS-ESI: [M+H]+ 321.1
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08716274B2 |
| Source dataset | uspto-grants-2014_05 |
| ORD ID | ord-a213b18744604886bc160fe89d1fa00b |
| Source note | uspto-grants-2014_05 |