Dimethylformamide → HCID 86591678, compound

HRID 1295307Notes

Reaction equation

[OH:1][C:2]1[C:6]([CH2:7][C:8]([O:10][CH3:11])=[O:9])=[CH:5][N:4]([CH3:12])[N:3]=1.Cl[CH2:14][C:15]1[CH:16]=[CH:17][C:18]([O:21][CH2:22][C:23]2[N:24]=[C:25]([C:28]3[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=3)[S:26][CH:27]=2)=[N:19][CH:20]=1.C(=O)([O-])[O-].[K+].[K+].CN(C)C=O>O>[CH3:12][N:4]1[CH:5]=[C:6]([CH2:7][C:8]([O:10][CH3:11])=[O:9])[C:2]([O:1][CH2:14][C:15]2[CH:20]=[N:19][C:18]([O:21][CH2:22][C:23]3[N:24]=[C:25]([C:28]4[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=4)[S:26][CH:27]=3)=[CH:17][CH:16]=2)=[N:3]1

Participants

Conditions

Temperature: 60 °C

Procedure

A mixture of methyl (3-hydroxy-1-methyl-1H-pyrazol-4-yl)acetate (255 mg), 5-chloromethyl-2-(2-phenyl-4-thiazolylmethoxy)pyridine (475 mg), potassium carbonate (415 mg) and N,N-dimethylformamide (10 ml) was stirred at 60° C. for 5 hrs. The reaction mixture was poured into water and the mixture was extracted with ethyl acetate. The ethyl acetate layer was washed with saturated brine, dried (MgSO4) and concentrated. The residue was subjected to silica gel column chromatography, and methyl [1-methyl-3-[6-(2-phenyl-4-thiazolylmethoxy)-3-pyridylmethoxy]-1H-pyrazol-4-yl]acetate (581 mg, yield 86%) was obtained as colorless crystals from a fraction eluted with ethyl acetate-hexane (2:1, volume ratio). The crystals were recrystallized from ethyl acetate-hexane. melting point: 85–86° C.

Workup

extractionthe mixture was extracted with ethyl acetate
washThe ethyl acetate layer was washed with saturated brine
dry with materialdried (MgSO4)
concentrationconcentrated

Sources & evidence

ORD record: ord-433265996db742919a8bf0bfc540c2c6
Source dataset: uspto-grants-2007_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07241785B2

Reaction notes

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