Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Methanol | HCID 887 | — |
| Reactant | Ethyl Acetate | HCID 8857 | — |
| Reactant | HCID 178472229 | HCID 178472229 | — |
| Catalyst | 4-(Dimethylamino)pyridine | HCID 14284 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 178482932 | HCID 178482932 | — |
Reaction Steps
Method B (DMAP salt): A suspension of ethyl 3-{[3-(3-methylquinoxalin-2-yl)-1H-pyrazol-5-yl]amino}-3-oxopropanoate (1.00 g, 2.95 mmol) and 4-dimethylaminopyridine (DMAP) (1.08 g, 8.84 mmol) in water (7 mL), tetrahydrofuan (7 mL), and methanol (7 mL) was heated at 65° C. for 4 h. After being cooled to ambient temperature, the reaction mixture was diluted with water and ethyl acetate. The aqueous layer was collected and concentrated in vacuo. The residue was triturated with ether acetate to give 2-(3-methylquinoxalin-2-yl)pyrazolo[1,5-a]pyrimidine-5,7-diol DMAP salt. MS (APCI): m/z 294 (M+H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08969376B2 |
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| Source dataset | uspto-grants-2015_03 |
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| ORD ID | ord-4175ad4f23c943c39e5158ff4d41510b |
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| Source note | uspto-grants-2015_03 |
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