反応式
[C:1](/[CH:3]=[CH:4]\[C@:5]1([CH3:31])[S:11](=[O:13])(=[O:12])[C@H:10]2[N:7]([C:8](=[O:14])[CH2:9]2)[C@H:6]1[C:15]([O:17]C(C1C=CC=CC=1)C1C=CC=CC=1)=[O:16])#[N:2].CC(CC(C)C)=O.C(C(CCCC)C([O-])=O)C.[Na+:49]>C1C(O)=CC=CC=1C>[C:1](/[CH:3]=[CH:4]\[C@:5]1([CH3:31])[S:11](=[O:13])(=[O:12])[C@H:10]2[N:7]([C:8](=[O:14])[CH2:9]2)[C@H:6]1[C:15]([O-:17])=[O:16])#[N:2].[Na+:49]参加物
反応物 3
生成物 1
試薬・触媒・溶媒 1
反応条件
- 温度
- 50 °C
実験手順
95 mg (0.2 mmol) of benzhydryl (Z)-(2S,3S,5R)-3-(2-cyanoethenyl)- 3-methyl-4,4,7-trioxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylate were dissolved in 3 ml of m-cresol and stirred at 50° C. for 45 minutes. The reaction mixture was treated with 10 ml of isobutyl methyl ketone and 120 μl of sodium 2-ethylcaproate (2N in ethyl acetate, 1.1 eq.). The mixture was extracted twice with 3 ml of water each time, the combined aqueous phases are washed with 10 ml of isobutyl methyl ketone and lyophilized. The yellow lyophilizate was dissolved in 1.3 ml of water and chromatographed over polymeric hydrophobic gel. Yield: 50 mg (80%) of colorless lyophilizate IR (KBr): 2222, 1782, 1626, 1395, 1323, 1141 cm-1 1 H-NMR (250MHz, D2O): δ[ppm]=1.94(s,3H), 3.47(dd,1H,J=16Hz, 1.6Hz, 6-H), 3.73(dd, 1H, J=16Hz, 4.4Hz, 6-H), 4.80(s,1H,2-H), 5.19(dd, 1H, J=16Hz, 4.4Hz,5-H), 6.15(d.1H,J=12Hz,=CH), 6.68 (d,1 H,J=12Hz,=CH).
後処理
- extractionThe mixture was extracted twice with 3 ml of water each time
- washthe combined aqueous phases are washed with 10 ml of isobutyl methyl ketone
- dissolutionThe yellow lyophilizate was dissolved in 1.3 ml of water
- customchromatographed over polymeric hydrophobic gel
出典と根拠
- ORDレコード
- ord-56a208715fcd48fbb7c72d5f3d89da62
- 出典データセット
- uspto-grants-1997_07
- 特許番号
- US05644053
関連ノート
読み込み中…