Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | HCID 9797936 | HCID 9797936 | — |
| Solvent | Tetrahydrofuran ethanol | HCID 21873804 | — |
| Product | HCID 9861488 | HCID 9861488 | 70.9% |
Reaction Steps
3-(3-Nitrophenyl)methyl-indole-N-acetic Acid, ethyl ester (0.175 g, 0.5 mmol) was dissolved in THF:EtOH (1:4, 5 mL) at room temperature with stirring. The mixture was cooled to 0° C. and treated with 1N NaOH (1.55 mL, 1.6 mmol). The mixture was allowed to stir at this temperature for 2 h. 1 N HCl was added and the mixture extracted with EtOAc (2×). The organics were combined and washed with a sat'd brine solution, dried over MgSO4, filtered and concentrated in vacuo. The residue was triturated with heptane and vacuum-filtered with several heptane washings to give 110 mg (69%) the desired compound as an off-white powder. mp 163-165° C.; 1H NMR (DMSO-d6, 300 MHz) δ 8.11 (s, 1 H), 8.03 (d, J=8.1 Hz, 1 H), 7.75 (d, J=8.1 Hz, 1 H), 7.53 (t, J=8.1 Hz, 1 H), 7.45 (d, J=8.1 Hz, 1 H), 7.33 (d, J=8.4 Hz, 1 H), 7.20 (s, 1 H), 7.11 (t, J=7.2 Hz, 1 H), 6.97 (t, J=7.2 Hz, 1 H), 4.96 (s, 2 H), 4.18 (s, 2 H); LRMS calcd for C17H14N2O4S: 310.0. found 311 (M+1)+.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07105514B2 |
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| Source dataset | uspto-grants-2006_09 |
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| ORD ID | ord-6171b1e492634ea6ac3676c6588b9d7c |
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| Source note | uspto-grants-2006_09 |
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