Hydrochloric Acid → HCID 178463068, compound
Reaction equation
[O:1]=[C:2]1[CH2:10][C:9]2[C:4](=[CH:5][CH:6]=[C:7]([C:11]([C:13]3[CH:14]=[C:15]([NH:19][C:20]([C:22]4[N:23]([CH2:28][CH3:29])[N:24]=[C:25]([CH3:27])[CH:26]=4)=[O:21])[CH:16]=[CH:17][CH:18]=3)=[O:12])[CH:8]=2)[NH:3]1.[CH:30](OCC)=[O:31].[O-]CC.[Na+].Cl>C(O)C>[OH:31][CH:30]=[C:10]1[C:9]2[C:4](=[CH:5][CH:6]=[C:7]([C:11]([C:13]3[CH:14]=[C:15]([NH:19][C:20]([C:22]4[N:23]([CH2:28][CH3:29])[N:24]=[C:25]([CH3:27])[CH:26]=4)=[O:21])[CH:16]=[CH:17][CH:18]=3)=[O:12])[CH:8]=2)[NH:3][C:2]1=[O:1]Participants
6
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 78 °C
Procedure
2-Ethyl-5-methyl-2H-pyrazole-3-carboxylic acid [3-(2-oxo-2,3-dihydro-1H-indole-5-carbonyl)-phenyl]-amide (1.12 g, 2.89 mmol) and ethyl formate (0.700 mL, 8.67 mmol) were dissolved in anhydrous ethanol (5.78 mL). The resulting solution was treated in dropwise fashion with a 21 wt % solution of sodium ethoxide in ethanol (5.40 mL, 14.50 mmol). This reaction mixture was heated at 78° C. for 1 h, producing a black oil. Subsequently, the reaction mixture was cooled to room temperature, and then the reaction pH was adjusted to pH 1 with dropwise addition of 1M HCl(aq) causing the formation of a pale orange precipitate. The suspension was filtered yielding an orange solid as the pure product (0.609 g, 1.47 mmol, 57%).
Workup
- customproducing a black oil
- temperatureSubsequently, the reaction mixture was cooled to room temperature
- filtrationThe suspension was filtered
Sources & evidence
- ORD record
- ord-8c55811756224277a81bb7375cfbc973
- Source dataset
- uspto-grants-2010_04
- Patent number
- US07692005B2
Reaction notes
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