Methyl chloroformate → 4-[4-Amino-5-(2-methoxy-benzoyl)-pyrimidin-2-ylamino]-piperidine-1-carboxylic acid methyl ester

HRID 1435176Notes

Reaction equation

FC(F)(F)C(O)=O.[NH2:8][C:9]1[C:14]([C:15]([C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][C:18]=2[O:23][CH3:24])=[O:16])=[CH:13][N:12]=[C:11]([NH:25][CH:26]2[CH2:31][CH2:30][NH:29][CH2:28][CH2:27]2)[N:10]=1.C(N(CC)CC)C.Cl[C:40]([O:42][CH3:43])=[O:41]>C(Cl)Cl>[CH3:43][O:42][C:40]([N:29]1[CH2:30][CH2:31][CH:26]([NH:25][C:11]2[N:10]=[C:9]([NH2:8])[C:14]([C:15](=[O:16])[C:17]3[CH:22]=[CH:21][CH:20]=[CH:19][C:18]=3[O:23][CH3:24])=[CH:13][N:12]=2)[CH2:27][CH2:28]1)=[O:41]

Participants

Conditions

Temperature: 0 °C

Procedure

To a solution of [4-amino-2-(piperidin-4-ylamino)-pyrimidin-5-yl]-(2-methoxy-phenyl)-methanone trifluoroacetic acid salt (80.9 mg, Example 11) in methylene chloride (4 mL) were added triethylamine (0.095 mL, 0.681 mmol, Aldrich) and methyl chloroformate (9.0 mg, 0.0868 mmol, Aldrich) at 0° C. The mixture was stirred for 1 hour at 0° C., the reaction mixture was concentrated in vacuo and crude product was purified on silica gel with 95:5 of dichloromethane/methanol to give 4-[4-amino-5-(2-methoxy-benzoyl)-pyrimidin-2-ylamino]-piperidine-1-carboxylic acid methyl ester (27.0 mg). HRMS, observed: 386.1827; Calcd for (M+H)+: 386.1823.

Workup

concentrationthe reaction mixture was concentrated in vacuo and crude product
customwas purified on silica gel with 95:5 of dichloromethane/methanol

Sources & evidence

ORD record: ord-c10ddd9b8d4b41e89fb7228073c2f461
Source dataset: uspto-grants-2009_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07615634B2

Reaction notes

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