Methyl chloroformate → HCID 59446938, compound

HRID 1946805Notes

Reaction equation

[CH:1]1([CH2:4][N:5]([CH2:15][CH2:16][CH3:17])[C:6]2[N:11]=[CH:10][N:9]=[C:8]([C:12]([OH:14])=O)[CH:7]=2)[CH2:3][CH2:2]1.C(N(CC)CC)C.ClC(OC)=O.[NH2:30][C:31]1[CH:47]=[CH:46][C:34]([CH2:35][S:36]([CH2:39][CH2:40][C:41]([O:43][CH2:44][CH3:45])=[O:42])(=[O:38])=[O:37])=[CH:33][CH:32]=1>C(Cl)Cl.O>[CH:1]1([CH2:4][N:5]([CH2:15][CH2:16][CH3:17])[C:6]2[N:11]=[CH:10][N:9]=[C:8]([C:12]([NH:30][C:31]3[CH:32]=[CH:33][C:34]([CH2:35][S:36]([CH2:39][CH2:40][C:41]([O:43][CH2:44][CH3:45])=[O:42])(=[O:38])=[O:37])=[CH:46][CH:47]=3)=[O:14])[CH:7]=2)[CH2:2][CH2:3]1

Participants

Conditions

Temperature: 0 °C

Procedure

A cooled (0° C.) solution of 6-((cyclopropylmethyl)(propyl)amino)pyrimidine-4-carboxylic acid (Intermediate 21, 0.2 g; 0.85 mmol) in DCM (5 ml) was treated with triethylamine (0.13 ml; 0.93 mmol) and methyl chloroformate (0.085 ml; 1.1 mmol). After stirring at 0° C. for 30 minutes, ethyl 3-(4-aminobenzylsulfonyl)propanoate (Intermediate 42, 230 mg; 0.85 mmol) was added. After stirring at 0° C. for 5 minutes and RT for 1 hour water was added and the mixture passed through a hydrophobic frit. The solvent was removed in vacuo and the residue purified by column chromatography (silica) eluting with petroleum ether containing increasing amounts of EtOAc to give the title compound as a white solid.

Workup

additionwas added
customThe solvent was removed in vacuo
customthe residue purified by column chromatography (silica)
washeluting with petroleum ether containing
temperatureincreasing amounts of EtOAc

Sources & evidence

ORD record: ord-aff53383afad4419981d678b33187405
Source dataset: uspto-grants-2013_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08399448B2

Reaction notes

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