Hydrochloric Acid → HCID 60026400, compound
Reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([C:11]([CH3:32])([CH3:31])[CH2:12][C:13]([OH:30])([C:26]([F:29])([F:28])[F:27])[CH2:14][C:15]2[NH:23][C:22]3[C:17](=[N:18][C:19]([C:24]#[N:25])=[CH:20][CH:21]=3)[CH:16]=2)[C:5]2[O:9][CH2:8][CH2:7][C:6]=2[CH:10]=1.B.CSC.Cl>C1COCC1.C(OCC)(=O)C>[NH2:25][CH2:24][C:19]1[N:18]=[C:17]2[CH:16]=[C:15]([CH2:14][C:13]([OH:30])([CH2:12][C:11]([C:4]3[C:5]4[O:9][CH2:8][CH2:7][C:6]=4[CH:10]=[C:2]([Cl:1])[CH:3]=3)([CH3:32])[CH3:31])[C:26]([F:29])([F:27])[F:28])[NH:23][C:22]2=[CH:21][CH:20]=1Participants
Procedure
2-[4-(5-Chloro-2,3-dihydrobenzofuran-7-yl)-2-hydroxy-4-methyl-2-trifluoromethylpentyl]-1H-pyrrolo[3,2-b]pyridine-5-carbonitrile (100 mg, 0.22 mmol) was dissolved in 3 mL of THF and borane-methyl sulfide (10 M, 0.065 mL, 0.648 mmol) was added. The reaction was heated at reflux for 1 hour and then cooled to room temperature. 1 mL of a 6 N HCl solution was then added. The reaction was heated at reflux overnight. The reaction was cooled to room temperature, diluted with 50 mL of ethyl acetate, and then quenched with saturated sodium carbonate solution until the pH was 12. The organic layer was separated and aqueous layer was extracted with three 50 mL portions of ethyl acetate. The combined organic fractions were dried over sodium sulfate and the solvent was removed in vacuo. The residue was purified by preparative HPLC (polar condition) to give the title compound (49 mg, 49% yield).
Workup
- temperatureThe reaction was heated
- temperatureat reflux for 1 hour
- temperatureThe reaction was heated
- temperatureat reflux overnight
- temperatureThe reaction was cooled to room temperature
- customquenched with saturated sodium carbonate solution until the pH was 12
- customThe organic layer was separated
- extractionaqueous layer was extracted with three 50 mL portions of ethyl acetate
- dry with materialThe combined organic fractions were dried over sodium sulfate
- customthe solvent was removed in vacuo
- customThe residue was purified by preparative HPLC (polar condition)
Sources & evidence
- ORD record
- ord-c70d85bf32434a8d9759f0391fbb4729
- Source dataset
- uspto-grants-2014_06
- Patent number
- US08741897B2
Reaction notes
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