Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Methyl iodide | HCID 6328 | — |
| Reactant | Sodium hydride | HCID 24758 | — |
| Reactant | Ammonium Chloride | HCID 25517 | — |
| Reactant | 2,4-Dichlorofuro[3,2-D]pyrimidine | HCID 45789968 | — |
| Reactant | Carbamic acid, N-[[7-(2-chlorofuro[3,2-d]pyrimidin-4-yl)-5,6,7,8-tetrahydroimidazo[1,5-a]pyrazin-3-yl]methyl]-, 1,1-dimethylethyl ester | HCID 86665102 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 86665101 | HCID 86665101 | 82% |
Reaction Steps
A solution of tert-butyl (7-(2-chlorofuro[3,2-d]pyrimidin-4-yl)-5,6,7,8-tetrahydroimidazo[1,5-a]pyrazin-3-yl)methylcarbamate (0.300 g, 0.741 mmol, prepared using A from 2,4-dichlorofuro[3,2-d]pyrimidine [Arkpharm] with Preparation #G.1) in THF (10 mL) was cooled to about 0° C. To the flask was added NaH (60 wt % dispersion in mineral oil, 0.036 g, 1.5 mmol) and the mixture was stirred for about 0.5 h at about 0° C. To the mixture was added MeI (0.21 g, 1.48 mmol) and the mixture was stirred for about 30 min. Saturated NH4Cl (15 mL) was added then the mixture was extracted with EtOAc (3×20 mL). The organic extracts were combined then dried over anhydrous Na2SO4 then filtered. The filtrate was concentrated under reduced pressure to give tert-butyl (7-(2-chlorofuro[3,2-d]pyrimidin-4-yl)-5,6,7,8-tetrahydroimidazo[1,5-a]pyrazin-3-yl)methyl(methyl)carbamate (0.255 g, 82%): LC/MS (Table 2, Method h) Rt=1.93 min; MS m/z: 419 (M+H)+.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08551981B2 |
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| Source dataset | uspto-grants-2013_10 |
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| ORD ID | ord-4e6b32a84f8a4b659a835cf2b859e9b9 |
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| Source note | uspto-grants-2013_10 |
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