(R)-Benzyl (1-(4-((1H-pyrrolo[2,3-b]pyridin-4-yl)carbamoyl)phenyl)ethyl)carbamate → 4-[(1R)-1-Aminoethyl]-N-(1H-pyrrolo[2,3-b]pyridin-4-yl)benzamide--hydrogen chloride (1/2)
Reaction equation
[NH:1]1[C:5]2=[N:6][CH:7]=[CH:8][C:9]([NH:10][C:11](=[O:31])[C:12]3[CH:17]=[CH:16][C:15]([C@H:18]([NH:20]C(OCC4C=CC=CC=4)=O)[CH3:19])=[CH:14][CH:13]=3)=[C:4]2[CH:3]=[CH:2]1.[ClH:32].CO.[H][H]>[C+4].[OH-].[Pd+2].[OH-].[OH-].[OH-].[OH-].[OH-].CO>[ClH:32].[ClH:32].[NH:1]1[C:5]2=[N:6][CH:7]=[CH:8][C:9]([NH:10][C:11](=[O:31])[C:12]3[CH:17]=[CH:16][C:15]([C@H:18]([NH2:20])[CH3:19])=[CH:14][CH:13]=3)=[C:4]2[CH:3]=[CH:2]1Participants
6
Reactant 3
Product 1
Reagents, catalysts & solvents 2
Procedure
10% Palladium hydroxide carbon (80 mg) was added to a mixture of (R)-N-(1H-pyrrolo[2,3-b]pyridin-4-yl)-4-(1-benzyloxycarbonylaminoethyl)benzamide (200 mg), 15% hydrochloric acid-methanol (1 ml) and methanol (6 ml), and the mixture was stirred in a stream of hydrogen at 40° C. for 1 hour. After the reaction, the catalyst was removed by filtration, and the mixture was concentrated under reduced pressure. The obtained crystals were recrystallized from methanol-ether to give 120 mg of (R)-(+)-N-(1H-pyrrolo[2,3-b]pyridin-4-yl)-4-(1-aminoethyl)benzamide dihydrochloride 3/2 hydrate having a melting point of 286° C. (dec.).
Workup
- customAfter the reaction
- customthe catalyst was removed by filtration
- concentrationthe mixture was concentrated under reduced pressure
- customThe obtained crystals were recrystallized from methanol-ether
Sources & evidence
- ORD record
- ord-d1377f8e7f974b5eb4b6a78a51f135d9
- Source dataset
- uspto-grants-1999_09
- Patent number
- US05958944
Reaction notes
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