phenylmethyl (3S)-2-[(2R)-3-cyclopentyl-2-({formyl[(phenylmethyl)oxy]amino}methyl)propanoyl]-3-[({2-[(2S)-2,4-dimethyl-1-piperazinyl]-4-pyrimidinyl}amino) carbonyl]-1-pyrazolidinecarboxylate → (3S)-2-((2R)-3-cyclopentyl-2-{[formyl(hydroxy)amino]methyl}propanoyl)-N-{2-[(2S)-2,4-dimethyl-1-piperazinyl]-4-pyrimidinyl}-3-pyrazolidine carboxamide

HRID 1396926Notes

Reaction equation

HRID 1396926 reaction equation
[CH:1]1([CH2:6][C@H:7]([CH2:42][N:43]([CH:52]=[O:53])[O:44]CC2C=CC=CC=2)[C:8]([N:10]2[C@H:14]([C:15]([NH:17][C:18]3[CH:23]=[CH:22][N:21]=[C:20]([N:24]4[CH2:29][CH2:28][N:27]([CH3:30])[CH2:26][C@@H:25]4[CH3:31])[N:19]=3)=[O:16])[CH2:13][CH2:12][N:11]2C(OCC2C=CC=CC=2)=O)=[O:9])[CH2:5][CH2:4][CH2:3][CH2:2]1>[OH-].[OH-].[Pd+2].CO>[CH:1]1([CH2:6][C@H:7]([CH2:42][N:43]([CH:52]=[O:53])[OH:44])[C:8]([N:10]2[C@H:14]([C:15]([NH:17][C:18]3[CH:23]=[CH:22][N:21]=[C:20]([N:24]4[CH2:29][CH2:28][N:27]([CH3:30])[CH2:26][C@@H:25]4[CH3:31])[N:19]=3)=[O:16])[CH2:13][CH2:12][NH:11]2)=[O:9])[CH2:2][CH2:3][CH2:4][CH2:5]1

Participants

4

Reactant 1

HCID 86706365phenylmethyl (3S)-2-[(2R)-3-cyclopentyl-2-({formyl[(phenylmethyl)oxy]amino}methyl)propanoyl]-3-[({2-[(2S)-2,4-dimethyl-1-piperazinyl]-4-pyrimidinyl}amino) carbonyl]-1-pyrazolidinecarboxylate

Product 1

HCID 66546324(3S)-2-((2R)-3-cyclopentyl-2-{[formyl(hydroxy)amino]methyl}propanoyl)-N-{2-[(2S)-2,4-dimethyl-1-piperazinyl]-4-pyrimidinyl}-3-pyrazolidine carboxamideYield 75.1%

Reagents, catalysts & solvents 2

HCID 9942167Palladium hydroxideCatalystHCID 887MethanolSolvent

Procedure

A mixture of phenylmethyl (3S)-2-[(2R)-3-cyclopentyl-2-({formyl[(phenylmethyl)oxy]amino}methyl)propanoyl]-3-[({2-[(2S)-2,4-dimethyl-1-piperazinyl]-4-pyrimidinyl}amino) carbonyl]-1-pyrazolidinecarboxylate (236 mg, 0.325 mmol) and Pearlman's catalyst (45.6 mg, 0.065 mmol) in methanol (1.81 ml) was degassed and placed under 1 atm of H2 at ambient temperature. After 2 hrs, the reaction mixture was filtered and concentrated to give a residue which was purified by RP-HPLC to give (3S)-2-((2R)-3-cyclopentyl-2-{[formyl(hydroxy)amino]methyl}propanoyl)-N-{2-[(2S)-2,4-dimethyl-1-piperazinyl]-4-pyrimidinyl}-3-pyrazolidine carboxamide (125 mg, 0.244 mmol, 75% yield). MS (ES+) m/z 503.1 (MH+).

Workup

  1. customwas degassed
  2. customplaced under 1 atm of H2 at ambient temperature
  3. filtrationthe reaction mixture was filtered
  4. concentrationconcentrated
  5. customto give a residue which
  6. customwas purified by RP-HPLC

Sources & evidence

ORD record
ord-35456579ac554b0da579ef176318e790
Source dataset
uspto-grants-2014_12
Patent number
US08901119B2

Reaction notes

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