Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Glycolic Acid | HCID 757 | — |
| Reactant | Diisopropylethylamine | HCID 81531 | — |
| Reactant | Methanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1) | HCID 2733084 | — |
| Reactant | 2-((2-(4-(Oxazol-5-yl)phenylamino)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidin-4-yl)(phenyl)amino)ethanol | HCID 46200050 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 46200514 | HCID 46200514 | 18.8% |
Reaction Steps
2-((2-(4-(Oxazol-5-yl)phenylamino)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidin-4-yl)(phenyl)amino)ethanol (100 mg, 0.23 mmol, Example 1) was dissolved in DMF (5 mL). N-Ethyldiisopropylamine (0.081 mL, 0.47 mmol) was added followed by O-(1H-Benzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate (115 mg, 0.30 mmol) and glycolic acid (0.025 mL, 0.23 mmol). The reaction mixture was stirred at room temperature overnight. The solvent was evaporated and the crude dissolved in DMF and acetonitrile, filtered and purified by prep. HPLC. The fractions containing the title compound were pulled together and freezed-dried over the weekend yielding 2-hydroxy-1-(4-((2-hydroxyethyl)(phenyl)amino)-2-(4-(oxazol-5-yl)phenylamino)-7,8-dihydropyrido[4,3-d]pyrimidin-6(5H)-yl)ethanone (21.0 mg, 18.49%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08188101B2 |
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| Source dataset | uspto-grants-2012_05 |
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| ORD ID | ord-053eabcf1d144773afbd2f64a1936660 |
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| Source note | uspto-grants-2012_05 |
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