1-Methylimidazole → phenylmethyl (3S)-2-[(2R)-3-cyclopentyl-2-({formyl[(phenylmethyl)oxy]amino}methyl)propanoyl]-3-[(4-pyrimidinylamino)carbonyl]-1-pyrazolidinecarboxylate

HRID 1396897Notes

Reaction equation

CN1C=CN=C1.[CH:7]1([CH2:12][C@H:13]([CH2:34][N:35]([CH:44]=[O:45])[O:36][CH2:37][C:38]2[CH:43]=[CH:42][CH:41]=[CH:40][CH:39]=2)[C:14]([N:16]2[C@H:20]([C:21](O)=[O:22])[CH2:19][CH2:18][N:17]2[C:24]([O:26][CH2:27][C:28]2[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=2)=[O:25])=[O:15])[CH2:11][CH2:10][CH2:9][CH2:8]1.S(Cl)(C)(=O)=O.[N:51]1[CH:56]=[CH:55][C:54]([NH2:57])=[N:53][CH:52]=1>CN(C)C=O>[CH:7]1([CH2:12][C@H:13]([CH2:34][N:35]([CH:44]=[O:45])[O:36][CH2:37][C:38]2[CH:43]=[CH:42][CH:41]=[CH:40][CH:39]=2)[C:14]([N:16]2[C@H:20]([C:21]([NH:57][C:54]3[CH:55]=[CH:56][N:51]=[CH:52][N:53]=3)=[O:22])[CH2:19][CH2:18][N:17]2[C:24]([O:26][CH2:27][C:28]2[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=2)=[O:25])=[O:15])[CH2:8][CH2:9][CH2:10][CH2:11]1

Participants

Conditions

Temperature: 0 °C

Procedure

1-Methylimidazole (0.53 ml, 6.7 mmol) was added into a solution of (3S)-2-[(2R)-3-cyclopentyl-2-({formyl[(phenylmethyl)oxy]amino}methyl)propanoyl]-1-{[(phenylmethyl)oxy]carbonyl}-3-pyrazolidinecarboxylic acid (1.2 g, 2.23 mmol) in N,N-dimethylformamide (DMF) (15.9 ml). The resulting solution was cooled to 0° C., and then mesyl chloride (0.18 ml, 2.34 mmol) was added dropwise at 0° C. Then 4-pyrimidinamine (0.255 g, 2.68 mmol) was added, and the reaction mixture was stirred for 1 h at room temperature. The reaction solution was purified via reverse phase HPLC (Gilson) to yield phenylmethyl (3S)-2-[(2R)-3-cyclopentyl-2-({formyl[(phenylmethyl)oxy]amino}methyl)propanoyl]-3-[(4-pyrimidinylamino)carbonyl]-1-pyrazolidinecarboxylate (1.21 g, 88% yield).

Workup

customThe reaction solution was purified via reverse phase HPLC (Gilson)

Sources & evidence

ORD record: ord-44a6608e94c1459fa3c3712633631045
Source dataset: uspto-grants-2014_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08901119B2

Reaction notes

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