HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1372717Generated: November 2, 2026
Indole-2-carboxylic acid → HCID 86592799, compound
https://huagongshe.com/reaction/1372717
Participants
| Role | Name | HCID | Charge |
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| Reactant | Indole-2-carboxylic acid | HCID 72899 | — |
| Reactant | 1-Hydroxybenzotriazole | HCID 75771 | — |
| Reactant | 1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride | HCID 2723939 | — |
| Reactant | HCID 22244730 | HCID 22244730 | — |
| Catalyst | 4-(Dimethylamino)pyridine | HCID 14284 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 86592799 | HCID 86592799 | 55.4% |
Reaction Steps
In DMF (10 ml), EDC HCl (1.43 g, 7.45 mmol) was added to indole-2-carboxylic acid (1.00 g, 6.21 mmol), tert-butyl 4-amino-3-methoxyphenylacetate (1.47 g, 6.21 mmol), HOBt (0.42 g, 3.10 mmol), and DMAP (0.38 g, 3.10 mmol). The resulting mixture was stirred at 60° C. for 16 hours. Water was added to the reaction mixture, followed by extraction with ethyl acetate. The extract was washed with saturated brine, dried over anhydrous sodium sulfate, and distilled under reduced pressure to remove the solvent. The residue was purified by chromatography on a silica gel column, whereby from n-hexane:ethyl acetate (1:1, v/v) eluate fractions, tert-butyl (4-((2-indolylcarbonyl)amino)-3-methoxyphenyl)acetate (1.31 g, 55%) was obtained as a brown solid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07157487B2 |
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| Source dataset | uspto-grants-2007_01 |
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| ORD ID | ord-83efe765cc8e4269bc85f418d52dce49 |
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| Source note | uspto-grants-2007_01 |
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