Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Sodium hydride | HCID 24758 | — |
| Reactant | Sodium Bicarbonate | HCID 516892 | — |
| Reactant | methyl (4E)-4-hydroxyimino-4-phenylbutanoate | HCID 12137371 | — |
| Reactant | 5-Chloro-2-(4-chloromethylphenoxymethyl)imidazo[1,2-a]pyridine | HCID 22344595 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Solvent | Ethyl acetate hexane | HCID 21226206 | — |
| Product | HCID 22344575 | HCID 22344575 | 67% |
Reaction Steps
Sodium hydride (60%, in oil, 143 mg) was added to a solution of methyl E-4-(hydroxyimino)-4-phenylbutyrate (676 mg) and 5-chloro-2-(4-chloromethylphenoxymethyl)imidazo[1,2-a]pyridine (1.00 g) in N,N-dimethyformamide (10 ml) at room temperature and stirred for 1 hour. 1N hydrochloric acid (7 ml) was added, an aqueous saturated solution of sodium bicarbonate was added and extracted with ethyl acetate. The ethyl acetate layer was washed with an aqueous saturated solution of sodium chloride, dried (MgSO4) and concentrated. The residue was subjected to silica gel chromatography to obtain methyl E-4-[4-(5-chloroimidazo[1,2-a]pyridin-2-ylmethoxy)benzyloxyimino]-4-phenylbutyrate (1.04 g, yield 67%) as a colorless oil from an ethyl acetate-hexane (2:1, v/v)-eluted fraction.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06495581B1 |
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| Source dataset | uspto-grants-2002_12 |
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| ORD ID | ord-9c640516873e4499a5fd23a994b12e33 |
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| Source note | uspto-grants-2002_12 |
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