methyl 8-oxo-9-phenyl-8H-pyrido[1,2-d]thieno[2,3-f][1,4]thiazepin-11-carboxylate → methyl 7-oxo-8-phenyl-7H-thieno[2,3-a]quinolizine-10-carboxylate
反応式
[O:1]=[C:2]1[N:7]2[CH:8]=[CH:9]S[C:11]3[CH:15]=[CH:14][S:13][C:12]=3[C:6]2=[C:5]([C:16]([O:18][CH3:19])=[O:17])[CH:4]=[C:3]1[C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1>C1(C)C(C)=CC=CC=1>[O:1]=[C:2]1[C:3]([C:20]2[CH:21]=[CH:22][CH:23]=[CH:24][CH:25]=2)=[CH:4][C:5]([C:16]([O:18][CH3:19])=[O:17])=[C:6]2[N:7]1[CH:8]=[CH:9][C:11]1[CH:15]=[CH:14][S:13][C:12]=12参加物
3
実験手順
4.4 g of methyl 8-oxo-9-phenyl-8H-pyrido[1,2-d]thieno[2,3-f][1,4]thiazepine-11-carboxylate were heated under reflux and under argon together with 90 ml of xylene until the reaction was completed. The solution was evaporated in vacuo and the residue was treated with 100 ml of n-hexane, whereupon the product was removed by filtration. By recrystallization from ethyl acetate, there was obtained methyl 7-oxo-8-phenyl-7H-thieno[2,3-a]quinolizine-10-carboxylate as yellow crystals of m.p. 153°-156°.
後処理
- customThe solution was evaporated in vacuo
- additionthe residue was treated with 100 ml of n-hexane, whereupon the product
- customwas removed by filtration
- customBy recrystallization from ethyl acetate
出典と根拠
- ORDレコード
- ord-48b12fc97d724504bae359771d6f06e1
- 出典データセット
- uspto-grants-1988_04
- 特許番号
- US04735940
反応ノート
読み込み中…