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methyl (2S)-2-[[(1R)-1-(1-benzofuran-5-yl)-2-oxo-2-(2-phenylmethoxyanilino)ethyl]amino]-4-methylpentanoate → methyl N-{(1R)-1-(benzofuran-5-yl)-2-[(2-hydroxyphenyl)amino]-2-oxoethyl}-L-leucinate

HRID 383974
Notes
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Reaction equation

HRID 383974 reaction equation
C([O:8][C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][C:10]=1[NH:15][C:16](=[O:37])[C@H:17]([NH:27][C@H:28]([C:33]([O:35][CH3:36])=[O:34])[CH2:29][CH:30]([CH3:32])[CH3:31])[C:18]1[CH:19]=[CH:20][C:21]2[O:25][CH:24]=[CH:23][C:22]=2[CH:26]=1)C1C=CC=CC=1>[Pd].C(OCC)(=O)C>[O:25]1[C:21]2[CH:20]=[CH:19][C:18]([C@@H:17]([NH:27][C@H:28]([C:33]([O:35][CH3:36])=[O:34])[CH2:29][CH:30]([CH3:31])[CH3:32])[C:16]([NH:15][C:10]3[CH:11]=[CH:12][CH:13]=[CH:14][C:9]=3[OH:8])=[O:37])=[CH:26][C:22]=2[CH:23]=[CH:24]1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

4

Reactant 1

HCID 45076860methyl (2S)-2-[[(1R)-1-(1-benzofuran-5-yl)-2-oxo-2-(2-phenylmethoxyanilino)ethyl]amino]-4-methylpentanoate

Product 1

HCID 45076859methyl N-{(1R)-1-(benzofuran-5-yl)-2-[(2-hydroxyphenyl)amino]-2-oxoethyl}-L-leucinateYield 82%

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 8857Ethyl AcetateSolvent

Procedure

A mixture of palladium on carbon (10%, 500 mg), methyl N-[(1R)-2-{[2-(benzyloxy)phenyl]amino}-1-(benzofuran-5-yl)-2-oxoethyl]-L-leucinate (5.1 g) and ethyl acetate (60 ml) was stirred under a hydrogen atmosphere for 5 hours. The reaction was then filtered through Celite and the filter pad was washed with further portions of ethyl acetate. The combined organic fractions were evaporated to give methyl N-{(1R)-1-(benzofuran-5-yl)-2-[(2-hydroxyphenyl)amino]-2-oxoethyl}-L-leucinate (3.429 g).

Workup

  1. filtrationThe reaction was then filtered through Celite
  2. washthe filter pad was washed with further portions of ethyl acetate
  3. customThe combined organic fractions were evaporated

Sources & evidence

ORD record
ord-bcc91117c1894da0b57c05bce45e4543
Source dataset
uspto-grants-2013_02
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08367673B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes