反応式
C([Li])CCC.[N:6]1[C:11]2[NH:12][C:13]3[CH:21]=[CH:20][CH:19]=[CH:18][C:14]=3[C:15](=[O:17])[NH:16][C:10]=2[CH:9]=[CH:8][CH:7]=1.[CH3:22][CH:23]([CH2:27][C:28]#[CH:29])[C:24](Cl)=[O:25]>CCCCCC.O1CCCC1.C(OCC)(=O)C>[O:25]=[C:24]([N:12]1[C:13]2[CH:21]=[CH:20][CH:19]=[CH:18][C:14]=2[C:15](=[O:17])[NH:16][C:10]2[CH:9]=[CH:8][CH:7]=[N:6][C:11]1=2)[CH:23]([CH3:22])[CH2:27][C:28]#[CH:29]参加物
反応物 3
生成物 1
試薬・触媒・溶媒 3
実験手順
At 0° to 10° C., with stirring, 416 ml (0.65 mol) of an n-butyl-lithium solution in n-hexane are added dropwise to a suspension of 63 g (0.3 mol) of 5,11-dihydro-6H-pyrido[2,3-b][1,4]benzodiazepin-6-one in 1500 ml of absolute tetrahydrofuran. THe mixture is stirred for a further hour at ambient temperature, then cooled to 5° to 10° C. and this temperature 46.8 g (0.36 mol) of 2-methyl-4-pentynoic acid chloride (not purified) dissolved in 100 ml of absolute tetrahydrofuran are added dropwise to the reaction solution. The mixture is stirred for a further 3 hours at ambient temperature, then added to 2000 ml of a saturated saline solution and diluted with about 2000 ml of ethyl acetate. The organic phase is separated off, extracted twice with 500 ml of saturated saline solution, dried over magnesium sulphate and evaporated to dryness in vacuo. The desired compound is obtained as a brownish-yellow product which is used without further purification in the next step.
後処理
- stirringTHe mixture is stirred for a further hour at ambient temperature
- temperaturecooled to 5° to 10° C.
- additionare added dropwise to the reaction solution
- stirringThe mixture is stirred for a further 3 hours at ambient temperature
- customThe organic phase is separated off
- extractionextracted twice with 500 ml of saturated saline solution
- dry with materialdried over magnesium sulphate
- customevaporated to dryness in vacuo
出典と根拠
- ORDレコード
- ord-909765aa47fa47b3808e7296f9f062de
- 出典データセット
- uspto-grants-1988_02
- 特許番号
- US04724236
関連ノート
読み込み中…