Dimethylformamide → 3-[4-[2-(2-furyl)-5-methyl-4-oxazolylmethoxy]-3-methoxybenzyloxy]-1-(4-phenoxybenzyl)-1H-pyrazole-4-carbamide

HRID 350309ノート

反応式

HRID 350309 の反応式
[O:1]1[CH:5]=[CH:4][CH:3]=[C:2]1[C:6]1[O:7][C:8]([CH3:45])=[C:9]([CH2:11][O:12][C:13]2[CH:42]=[CH:41][C:16]([CH2:17][O:18][C:19]3[C:23]([C:24](O)=[O:25])=[CH:22][N:21]([CH2:27][C:28]4[CH:33]=[CH:32][C:31]([O:34][C:35]5[CH:40]=[CH:39][CH:38]=[CH:37][CH:36]=5)=[CH:30][CH:29]=4)[N:20]=3)=[CH:15][C:14]=2[O:43][CH3:44])[N:10]=1.Cl.C([N:49]=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]([CH3:45])=[C:9]([CH2:11][O:12][C:13]2[CH:42]=[CH:41][C:16]([CH2:17][O:18][C:19]3[C:23]([C:24]([NH2:49])=[O:25])=[CH:22][N:21]([CH2:27][C:28]4[CH:33]=[CH:32][C:31]([O:34][C:35]5[CH:36]=[CH:37][CH:38]=[CH:39][CH:40]=5)=[CH:30][CH:29]=4)[N:20]=3)=[CH:15][C:14]=2[O:43][CH3:44])[N:10]=1

参加物

5

反応物 3

HCID 6228DimethylformamideHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 694245103-[4-[2-(2-furyl)-5-methyl-4-oxazolylmethoxy]-3-methoxybenzyloxy]-1-(4-phenoxybenzyl)-1H-pyrazole-4-carboxylic acid

生成物 1

HCID 694238153-[4-[2-(2-furyl)-5-methyl-4-oxazolylmethoxy]-3-methoxybenzyloxy]-1-(4-phenoxybenzyl)-1H-pyrazole-4-carbamide収率 94%

試薬・触媒・溶媒 1

HCID 962Water溶媒

実験手順

A mixture of 3-[4-[2-(2-furyl)-5-methyl-4-oxazolylmethoxy]-3-methoxybenzyloxy]-1-(4-phenoxybenzyl)-1H-pyrazole-4-carboxylic acid (0.80 g), 1H-1,2,3-benzotriazol-1-ol ammonia complex (0.22 g), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (0.28 g), and N,N-dimethylformamide (10 ml) was stirred at room temperature overnight. The reaction mixture was poured into water, and extracted with ethyl acetate. The ethyl acetate layer was washed successively with dilute hydrochloric acid and aqueous sodium chloride solution, dried (MgSO4), and concentrated. The residue was subjected to silica gel column chromatography to obtain 3-[4-[2-(2-furyl)-5-methyl-4-oxazolylmethoxy]-3-methoxybenzyloxy]-1-(4-phenoxybenzyl)-1H-pyrazole-4-carbamide (0.75 g, yield 94%) as colorless crystals from the fraction eluted with ethyl acetate-hexane (1:2, volume ratio). This was recrystallized from acetone-hexane. Melting point: 105–106° C.

後処理

  1. extractionextracted with ethyl acetate
  2. washThe ethyl acetate layer was washed successively with dilute hydrochloric acid and aqueous sodium chloride solution
  3. dry with materialdried (MgSO4)
  4. concentrationconcentrated

出典と根拠

ORDレコード
ord-8ba7f8ef304a46caad3d13a84bb36d18
出典データセット
uspto-grants-2007_02
特許番号
US07179823B1

反応ノート

読み込み中…