Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Diethanolamine | HCID 8113 | — |
| Reactant | Lithium Hexamethyldisilazide | HCID 2733832 | — |
| Reactant | 3-Amino-5-chloro-6-methanesulfinyl-4-methyl-thieno[2,3-b]pyridine-2-carboxylic acid cyclopropylamide | HCID 57664420 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 57664416 | HCID 57664416 | 56.1% |
Reaction Steps
To a solution of diethanolamine (1.097 g, 10.43 mmol) in THF (3 ml) at room temperature is added dropwise a solution of lithium bis(trimethylsilyl)amide (1.0 M in hexanes)(3.50 ml, 3.50 mmol). The reaction mixture is stirred for 15 minutes and then is treated with 3-amino-5-chloro-6-methanesulfinyl-4-methyl-thieno[2,3-b]pyridine-2-carboxylic acid cyclopropylamide (0.345 g, 1.00 mmol). The reaction mixture is heated at 75° C. for 1 hour, cooled to room temperature, and then quenched by the addition of water (15 ml). Ice is added to the reaction mixture and, while stirring, a yellow precipitate is formed. This solid is collected by filtration and placed in the vacuum oven to dry (60° C. for 16 hours). This affords the title compound as a yellow solid (0.216 g, 56%). Mass (m/z): 385.2 (M++1), 383.1 (M+−1).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08071776B2 |
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| Source dataset | uspto-grants-2011_12 |
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| ORD ID | ord-e9a9ea8adbf94a1885e7a80d6431e527 |
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| Source note | uspto-grants-2011_12 |
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