1,2-Dichloroethane → 4-Chloro-6-(4-methyl-1-piperazinyl)-1,2,dihydrobenzo[b]pyrrolo[3,2,1-jk][1,4]benzodiazepine

HRID 34356

反応式

HRID 34356 の反応式
[Cl:1][C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][CH:10]=1)[N:7]([C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][C:12]=1[NH:17][C:18]([N:20]1[CH2:25][CH2:24][N:23]([CH3:26])[CH2:22][CH2:21]1)=O)[CH2:6][CH2:5]2.ClCCCl>ClCCl>[Cl:1][C:2]1[CH:3]=[C:4]2[CH2:5][CH2:6][N:7]3[C:8]2=[C:9]([CH:10]=1)[C:18]([N:20]1[CH2:25][CH2:24][N:23]([CH3:26])[CH2:22][CH2:21]1)=[N:17][C:12]1[CH:13]=[CH:14][CH:15]=[CH:16][C:11]=13

参加物

4

反応物 2

HCID 111,2-DichloroethaneHCID 13823362N-[2-(5-chloro-1-indolinyl)phenyl]-4-methyl-1-piperazinecarboxamide

生成物 1

HCID 138232954-Chloro-6-(4-methyl-1-piperazinyl)-1,2,dihydrobenzo[b]pyrrolo[3,2,1-jk][1,4]benzodiazepine収率 29.5%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

反応条件

温度
75 °C

実験手順

To N-[2-(5-chloro-1-indolinyl)phenyl]-4-methyl-1-piperazinecarboxamide (13.5 g, 36.5 mmoles) was added a solution of polyphosphoric acid ethyl ester and 1,2-dichloroethane (250 ml). The solution was heated at 75° C. for 4 hours with exclusion of moisture. The solution was cooled and poured into a mixture of ice-sodium hydroxide solution (2 1) and dichloromethane (1.2 1). The mixture was stirred for 15 minutes. The layers were separated. The organic layer was washed with 2 1 of 2N sodium hydroxide, then with brine (500 ml), and dried over anhydrous magnesium sulfate. Removal of the solvent at reduced pressure gave an oil. The oil was purified by flash chromatography on a silica gel column (1 kg, 230-400 mesh), packed and eluted initially with dichloromethane, then with dichloromethane containing an increasing methanol content in 1% increments to a final content of 5% (total 8 1). Concentration of the 5% methanol/dichloromethane eluent gave 3.8 g (28%) of product. Recrystallization from 2-propanol (50 ml) gave the analytical sample, mp 182°-183° C.

後処理

  1. temperatureThe solution was cooled
  2. customThe layers were separated
  3. washThe organic layer was washed with 2 1 of 2N sodium hydroxide
  4. dry with materialwith brine (500 ml), and dried over anhydrous magnesium sulfate
  5. customRemoval of the solvent at reduced pressure
  6. customgave an oil
  7. customThe oil was purified by flash chromatography on a silica gel column (1 kg, 230-400 mesh)
  8. washeluted initially with dichloromethane

出典と根拠

ORDレコード
ord-9928f6eb77bc438499ff7cb10d97d384
出典データセット
uspto-grants-1988_08
特許番号
US04761412

関連ノート

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