反応式
[CH3:1][C:2]1[CH:10]=[C:9]([C:11]([NH:13][C:14]2[CH:19]=[CH:18][CH:17]=[C:16]([C:20]3[C:29]4[C:24](=[CH:25][C:26]([O:32][CH3:33])=[C:27]([O:30][CH3:31])[CH:28]=4)[N:23]=[C:22]([NH:34][CH3:35])[N:21]=3)[CH:15]=2)=[O:12])[CH:8]=[CH:7][C:3]=1[C:4]([OH:6])=[O:5]>O1CCCC1>[OH2:5].[CH3:1][C:2]1[CH:10]=[C:9]([C:11]([NH:13][C:14]2[CH:19]=[CH:18][CH:17]=[C:16]([C:20]3[C:29]4[C:24](=[CH:25][C:26]([O:32][CH3:33])=[C:27]([O:30][CH3:31])[CH:28]=4)[N:23]=[C:22]([NH:34][CH3:35])[N:21]=3)[CH:15]=2)=[O:12])[CH:8]=[CH:7][C:3]=1[C:4]([OH:6])=[O:5]参加物
実験手順
The third crystals of methyl N-[3-(6,7-dimethoxy-2-methylaminoquinazolin-4-yl)phenyl]terephthalamic acid hydrate can be produced by dissolving methyl N-[3-(6,7-dimethoxy-2-methylaminoquinazolin-4-yl)phenyl]terephthalamic acid in tetrahydrofuran and precipitating crystals from the solution. More particularly, the third crystals of methyl N-[3-(6,7-dimethoxy-2-methylaminoquinazolin-4-yl)phenyl]terephthalamic acid hydrate can be produced by dissolving methyl N-[3-(6,7-dimethoxy-2-methylaminoquinazolin-4-yl)phenyl]terephthalamic acid in tetrahydrofuran at room temperature or under heating and slowly cooling the solution to 4° C. to room temperature to precipitate crystals from the solution. Upon crystallization, water can be added. The amount of tetrahydrofuran used can be appropriately selected, provided that the lower limit is the amount that enables the dissolution of methyl N-[3-(6,7-dimethoxy-2-methylaminoquinazolin-4-yl)phenyl]terephthalamic acid by heating and the upper limit is the amount that does not decrease the yield of the crystals significantly.
後処理
- customprecipitating crystals from the solution
出典と根拠
- ORDレコード
- ord-60284781e4124a9eae4557581994e8a4
- 出典データセット
- uspto-grants-2013_09
- 特許番号
- US08530654B2
関連ノート
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