Diisopropylamine → 6-[(cyclopropylmethyl)(propyl)amino]-N-1H-indol-4-ylpyrimidine-4-carboxamide

HRID 1946801Notes

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(Cl)(C(Cl)=O)=O.[NH:24]1[C:32]2[CH:31]=[CH:30][CH:29]=[C:28]([NH2:33])[C:27]=2[CH:26]=[CH:25]1.C(NC(C)C)(C)C>C(Cl)Cl.O.CN(C=O)C>[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:33][C:28]3[CH:29]=[CH:30][CH:31]=[C:32]4[C:27]=3[CH:26]=[CH:25][NH:24]4)=[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, 0.23 g; 0.98 mmol) in DCM (5 ml) was treated with DMF (1 drop of a 10% solution in DCM) followed by (COCl)2 (0.1 ml; 1.15 mmol). After stirring at 0° C. for 30 minutes, the mixture was treated with 1H-indol-4-amine (Aldrich, 146 mg; 1.1 mmol) and diisopropylamine (0.5 ml; 2.9 mmol). After stirring overnight, water was added and the layers separated. The organic phase was passed through a hydrophobic frit and the solvent removed in vacuo. The residue was purified by column chromatography (silica) eluting with petroleum ether containing increasing amounts of Et2O to give the title compound as an off-white solid.

Workup

stirringAfter stirring overnight
customthe layers separated
customthe solvent removed in vacuo
customThe residue was purified by column chromatography (silica)
washeluting with petroleum ether containing
temperatureincreasing amounts of Et2O

Sources & evidence

ORD record: ord-a57d6c2db5fc451fae3d72904c039a3b
Source dataset: uspto-grants-2013_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08399448B2

Reaction notes

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