Ethyl Acetate → 5-Amino-1-(1-naphthyl)-3-(4-tolyl)pyrazole-4-carboxamide

HRID 582011

反応式

HRID 582011 の反応式
[C:1]([C:3](=[C:7](SC)[C:8]1[CH:13]=[CH:12][C:11]([CH3:14])=[CH:10][CH:9]=1)[C:4]([NH2:6])=[O:5])#[N:2].Cl.[C:18]1([NH:28][NH2:29])[C:27]2[C:22](=[CH:23][CH:24]=[CH:25][CH:26]=2)[CH:21]=[CH:20][CH:19]=1.[OH-].[Na+].C(OCC)(=O)C>CCCCCC>[NH2:2][C:1]1[N:28]([C:18]2[C:27]3[C:22](=[CH:23][CH:24]=[CH:25][CH:26]=3)[CH:21]=[CH:20][CH:19]=2)[N:29]=[C:7]([C:8]2[CH:13]=[CH:12][C:11]([CH3:14])=[CH:10][CH:9]=2)[C:3]=1[C:4]([NH2:6])=[O:5]

参加物

6

実験手順

The title compound was prepared from 2-cyano-3-methylthio-3-(4-tolyl) acrylamide (464 mg, 2.0 mmol), 1-naphthyl hydrazine hydrochloride (389 mg, 2.0 mmol) and sodium hydroxide (88 mg, 2.2 mmol) following the procedure used for the compound of Example 12. The crude product was subjected to column chromatography (SiO2, 50-60% ethyl acetate in hexane) and was recrystallised from diethylether to give the title compound as pink crystals (185 mg) m.p. 195°. δH (CDCl3) 8.00 (1H, d, J 8.3 Hz), 7.95 (1 H., m), 7.73-7.55 (7H, m), 7.30 (2H, d, J 8.3 Hz), 5.52 (2H, br s), 5.16 (2H, br s) and 2.42 (3H, s).

後処理

  1. customwas recrystallised from diethylether

出典と根拠

ORDレコード
ord-ef930def809749ab9ca3e9e30e78bcdb
出典データセット
uspto-grants-1999_07
特許番号
US05922741

関連ノート

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