反応式
[CH:1]1([C:4]2[O:5][C:6]3[C:7](=[C:9]([C:20]#[N:21])[C:10]([CH3:19])=[C:11]([C:14]([O:16]CC)=[CH2:15])[C:12]=3[F:13])[N:8]=2)[CH2:3][CH2:2]1.Cl.[O:23]1C=CN=C1.CO>O1CCCC1>[C:14]([C:11]1[C:12]([F:13])=[C:6]([OH:5])[C:7]([NH:8][C:4]([CH:1]2[CH2:2][CH2:3]2)=[O:23])=[C:9]([C:20]#[N:21])[C:10]=1[CH3:19])(=[O:16])[CH3:15]参加物
6
実験手順
2-Cyclopropyl-6-[1-(ethoxy)ethenyl]-7-fluoro-5-methyl-1,3-benzoxazole-4-carbonitrile (I-78) (1.0 g, 3.49 mmol) was dissolved in tetrahydrofuran (10 ml), aqueous 1 N hydrochloric acid solution (2.0 ml) was added, followed by stirring at room temperature for 19 hours. At this point in time, it was known that a mixture with an oxazole-opened compound is given, and for complete ring opening, methanol (5 ml) was added followed by stirring overnight at room temperature. The solvent was concentrated under reduced pressure, ethyl acetate was added to the resulting residue, followed by fractionation with water.
後処理
- stirringby stirring overnight at room temperature
- concentrationThe solvent was concentrated under reduced pressure, ethyl acetate
- additionwas added to the resulting residue
出典と根拠
- ORDレコード
- ord-aa3e8be5607b4c5db95471ff710fd6d1
- 出典データセット
- uspto-grants-2010_06
- 特許番号
- US07737166B2
関連ノート
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