Dimethylformamide → (2E)-3-{3-[(4-{[2-(2-furyl)-5-methyl-4-oxazolyl]methoxy}-3-methoxybenzyl)oxy]-1-phenyl-1H-pyrazol-4-yl}-2-propenamide

HRID 2221805Notes

Reaction equation

HRID 2221805 reaction equation
[O:1]1[CH:5]=[CH:4][CH:3]=[C:2]1[C:6]1[O:7][C:8]([CH3:39])=[C:9]([CH2:11][O:12][C:13]2[CH:36]=[CH:35][C:16]([CH2:17][O:18][C:19]3[C:23](/[CH:24]=[CH:25]/[C:26]([OH:28])=O)=[CH:22][N:21]([C:29]4[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=4)[N:20]=3)=[CH:15][C:14]=2[O:37][CH3:38])[N:10]=1.Cl.C([N:43]=C=NCCCN(C)C)C.CN(C)C=O>O>[O:1]1[CH:5]=[CH:4][CH:3]=[C:2]1[C:6]1[O:7][C:8]([CH3:39])=[C:9]([CH2:11][O:12][C:13]2[CH:36]=[CH:35][C:16]([CH2:17][O:18][C:19]3[C:23](/[CH:24]=[CH:25]/[C:26]([NH2:43])=[O:28])=[CH:22][N:21]([C:29]4[CH:30]=[CH:31][CH:32]=[CH:33][CH:34]=4)[N:20]=3)=[CH:15][C:14]=2[O:37][CH3:38])[N:10]=1

Participants

5

Reactant 3

HCID 6228DimethylformamideHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 69215034(2E)-3-{3-[(4-([2-(2-furyl)-5-methyl-4-oxazolyl]methoxy}-3-methoxybenzyl)oxy]-1-phenyl-1H-pyrazol-4-yl}-2-propenoic acid

Product 1

HCID 69216833(2E)-3-{3-[(4-{[2-(2-furyl)-5-methyl-4-oxazolyl]methoxy}-3-methoxybenzyl)oxy]-1-phenyl-1H-pyrazol-4-yl}-2-propenamideYield 83.5%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

A mixture of (2E)-3-{3-[(4-{[2-(2-furyl)-5-methyl-4-oxazolyl]methoxy}-3-methoxybenzyl)oxy]-1-phenyl-1H-pyrazol-4-yl}-2-propenoic acid (0.30 g), 1-hydroxybenzotriazole ammonia complex (0.17 g), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (0.22 g) and N,N-dimethylformamide (15 mL) was stirred at room temperature for 15 hrs. Water was poured into the reaction mixture, and the precipitated crystals were collected by filtration to give (2E)-3-{3-[(4-{[2-(2-furyl)-5-methyl-4-oxazolyl]methoxy}-3-methoxybenzyl)oxy]-1-phenyl-1H-pyrazol-4-yl}-2-propenamide as colorless crystals (0.25 g, yield 83%). Recrystallization from tetrahydrofuran-hexane gave colorless prism crystals. melting point: 187-188° C.

Workup

  1. filtrationthe precipitated crystals were collected by filtration

Sources & evidence

ORD record
ord-01d441a6e72542a096c8cdff85eb9e3e
Source dataset
uspto-grants-2008_05
Patent number
US07368578B2

Reaction notes

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