Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Methanesulfonamide | HCID 72879 | — |
| Reactant | 1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride | HCID 2723939 | — |
| Reactant | HCID 86703273 | HCID 86703273 | — |
| Catalyst | 4-(Dimethylamino)pyridine | HCID 14284 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 86703274 | HCID 86703274 | 63.2% |
Reaction Steps
To a solution of 6-(1-benzenesulfonyl-6-methoxy-2-phenyl-1H-indol-3-ylmethyl)pyridine-2-carboxylic acid (867 mg) in dichloromethane (17.4 mL) were added methanesulfonamide (199 mg), 4-dimethylaminopyridine (510 mg), and 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (800 mg) successively, and this mixture was stirred at room temperature for 24 hours. To the reaction mixture was added 1 mol/L hydrochloric acid, followed by extraction with dichloromethane. The organic layer was washed with 1 mol/L hydrochloric acid, dried over anhydrous sodium sulfate, and then concentrated under reduced pressure. The residue was purified by silica gel column chromatography (eluting solvent: methanol-dichloromethane) to obtain the title compound (633 mg). 1H-NMR (DMSO-d6) δ ppm: 3.39 (3H, s), 3.86 (3H, s), 4.03 (2H, s), 6.85-6.98 (2H, m), 7.37 (1H, d, J=8.8 Hz), 7.39-7.53 (9H, m), 7.60-7.71 (2H, m), 7.77-7.88 (2H, m), 11.00-11.56 (1H, br). ESI-MS (m/z): 576 (M+H)+
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08815903B2 |
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| Source dataset | uspto-grants-2014_08 |
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| ORD ID | ord-7e0f77cbaef74cf99fa205b40ffe3721 |
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| Source note | uspto-grants-2014_08 |
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