Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | HCID 86698706 | HCID 86698706 | — |
| Solvent | Methanol | HCID 887 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 86698708 | HCID 86698708 | 38.8% |
Reaction Steps
To a mixture of methyl 6-chloro-5-[4-(3-hydroxypropoxy)-3-methoxyphenyl]-1H-indole-3-carboxylate (92 mg, 0.24 mmol) in MeOH (5 mL) and water (2 mL) was added NaOH (94 mg, 2.4 mmol). The reaction mixture was heated at 70° C. and stirred for 24 hours. TLC (petroleum ether/ethyl acetate=1:1) showed the reaction was complete. The mixture was acidified by 1N HCl to pH 4 and extracted with ethyl acetate (10 mL×3). The combined organic layers was dried over sodium sulfate, filtered, and concentrated in vacuo to give a brown residue. It was purified by preparative HPLC to give the title compound (35 mg, 35% yield) as a white solid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09394285B2 |
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| Source dataset | uspto-grants-2016_07 |
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| ORD ID | ord-08269364564647fd91447dd226a3623b |
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| Source note | uspto-grants-2016_07 |
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