Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Dimethylamine | HCID 674 | — |
| Reactant | Tetrahydrofuran | HCID 8028 | — |
| Reactant | Diisopropylethylamine | HCID 81531 | — |
| Reactant | Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1) | HCID 9886157 | — |
| Reactant | HCID 68483604 | HCID 68483604 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 68487889 | HCID 68487889 | 22% |
Reaction Steps
To a solution of 5-[(ethyloxy)carbonyl]-4-methyl-1H-pyrrole-2-carboxylic acid (0.160 g, 0.812 mmol) in DMF (4 ml) was added DIPEA (0.140 mL, 0.790 mmol). The reaction mixture was stirred and the solution was divided into four equal portions, one of which was added to a glass vial with a stir bar. To the vial was added a 2M solution of dimethylamine in THF (0.10 mL, 0.2 mmol) and HATU (0.075 g, 0.197 mmol) and the reaction mixture stirred overnight. Purification was accomplished by RPHPLC (water:acetonitrile with 0.1% TFA). The desired fractions were collected and lypholized to afford ethyl 5-[(dimethylamino)carbonyl]-3-methyl-1H-pyrrole-2-carboxylate (0.010 g, 22%) as a white solid. 1H NMR (400 MHz, DMSO-d6): δ ppm 11.45 (br. s., 1H) 6.37 (d, 1H) 4.22 (q, 2H) 3.10 (br. s., 3H) 2.97 (br. s., 3H) 2.26 (s, 3H) 1.28 (t, 3H). MS: m/z 225.5 (M+1).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08304419B2 |
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| Source dataset | uspto-grants-2012_11 |
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| ORD ID | ord-a7371f134a2d43bea5456caa62c2d753 |
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| Source note | uspto-grants-2012_11 |
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