Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | 3-Fluorophenol | HCID 9743 | — |
| Reactant | Triphenylphosphine | HCID 11776 | — |
| Reactant | Diisopropyl diazene-1,2-dicarboxylate | HCID 75555 | — |
| Reactant | HCID 67257660 | HCID 67257660 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 53248398 | HCID 53248398 | 47.7% |
Reaction Steps
(S)-1-(2-aminopyrimidin-4-yl)ethanol (6b) (7.75 g), 3-fluorophenol (6.87 g) and triphenylphosphine (16.07 g) were added to tetrahydrofuran (150 mL) under nitrogen and cooled to 0° C. (brine/ice bath). The resulting brown mixture was stirred at 0° C. for 20 min then diisopropyl azodicarboxylate (12.06 mL, 12.39 g) was added dropwise as a solution in tetrahydrofuran (40 mL). The reaction was maintained at 0-2° C. throughout the addition and was then allowed to warm to room temperature overnight. The solvent was removed under reduced pressure before the crude product was loaded onto a silica plug and purified by flash chromatography on silica eluting with heptane/ethyl acetate 7:3 followed by crystallisation from ethanol to give the title compound (6.2 g) as a white crystalline solid, MS (ES): m/z 234.0 [M+H]+; [α]D−153.0 (methanol, c=1.8 mg/ml).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08952001B2 |
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| Source dataset | uspto-grants-2015_02 |
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| ORD ID | ord-ae219262030848d69f547b450d7389e5 |
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| Source note | uspto-grants-2015_02 |
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