反応式
Br[CH2:2][CH2:3][C:4]1[C:12]2[C:7](=[CH:8][CH:9]=[CH:10][CH:11]=2)[NH:6][CH:5]=1.[O:13]1[C:17]2([CH2:22][CH2:21][NH:20][CH2:19][CH2:18]2)[CH2:16][NH:15][C:14]1=[O:23].C(N(CC)CC)C.CN(C)C=O>O>[NH:6]1[C:7]2[C:12](=[CH:11][CH:10]=[CH:9][CH:8]=2)[C:4]([CH2:3][CH2:2][N:20]2[CH2:19][CH2:18][C:17]3([O:13][C:14](=[O:23])[NH:15][CH2:16]3)[CH2:22][CH2:21]2)=[CH:5]1参加物
実験手順
A mixture of 3.94 g of 3-(2-bromoethyl)indole, 2.74 g of 1-oxa-3,8-diazaspiro[4.5]decan-2-one, 2 g of triethylamine and 10 ml N,N-dimethylformamide is stirred at 50° for 16 hours. The mixture is cooled to room temperature and 150 ml of water is added with stirring The aqueous layer is decanted from the residue which adheres to the walls of the flask. The residue is washed with 100 ml water following by 100 ml diethyl ether. The residue is dissolved in a minimum amount of 10% (v/v) methanol-dichloromethane and the resulting solution is filtered through 25 g silica gel with 150 ml of 10% (v/v) methanol-dichloromethane. Evaporation of the filtrate followed by crystallization with diethyl ether affords 2.35 g of 8-[2-(3-indolyl)ethyl]-1-oxa-3,8-diazaspiro[4.5]decan-2-one, mp 183°-186° (d).
後処理
- stirringwith stirring The aqueous layer
- customis decanted from the residue which
- washThe residue is washed with 100 ml water following by 100 ml diethyl ether
- dissolutionThe residue is dissolved in a minimum amount of 10% (v/v) methanol-dichloromethane
- filtrationthe resulting solution is filtered through 25 g silica gel with 150 ml of 10% (v/v) methanol-dichloromethane
- customEvaporation of the filtrate
- customfollowed by crystallization with diethyl ether
出典と根拠
- ORDレコード
- ord-60cf503172914728bf83ac105a88ff04
- 出典データセット
- uspto-grants-1981_03
- 特許番号
- US04255432
関連ノート
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