反応式
[CH2:1]([O:5][C:6]1[C:11]([CH3:12])=[C:10](Cl)[N:9]=[CH:8][N:7]=1)[C:2]#[C:3][CH3:4].[CH3:14][CH:15]1[CH2:20][CH:19]([CH3:21])[CH2:18][NH:17][CH2:16]1>C(O)C>[CH2:1]([O:5][C:6]1[C:11]([CH3:12])=[C:10]([N:17]2[CH2:18][CH:19]([CH3:21])[CH2:20][CH:15]([CH3:14])[CH2:16]2)[N:9]=[CH:8][N:7]=1)[C:2]#[C:3][CH3:4]参加物
実験手順
Into 3 ml of ethanol was resolved 0.3 g of 4-(2-butynyloxy)-6-chloro-5-methylpyrimidine, 0.47 g of 3,5-dimethylpiperidine (cis/trans=about 3/1) was added therein, and the mixture was stirred for 16 hours under reflux condition. The reaction mixture was cooled to near room temperature, and concentrated. Into the residue was added a saturated ammonium chloride aqueous solution, and the mixture was extracted with tert-butyl methyl ether three times. The organic layers were washed with a saturated sodium chloride aqueous solution, dried over anhydrous magnesium sulfate and concentrated. The residue was subjected to silica gel column chromatography to obtain 0.33 g of 4-(2-butynyloxy)-5-methyl-6-(3,5-dimethylpiperidino)pyrimidine (hereinafter, referred to as Compound (9)). Compound (9) had the cis/trans diastereomer originated two methyls on the piperidine ring. The ratio of the cis/trans diastereomer was about 3.8/1.
後処理
- additionwas added
- temperatureunder reflux condition
- concentrationconcentrated
- additionInto the residue was added a saturated ammonium chloride aqueous solution
- extractionthe mixture was extracted with tert-butyl methyl ether three times
- washThe organic layers were washed with a saturated sodium chloride aqueous solution
- dry with materialdried over anhydrous magnesium sulfate
- concentrationconcentrated
出典と根拠
- ORDレコード
- ord-170dabfaa97b4eceabe279b44c8414ef
- 出典データセット
- uspto-grants-2010_06
- 特許番号
- US07732448B2
関連ノート
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