1-Methylpiperazine → 2-(2,8-dimethyl-3,4-dihydro-1H-pyrido[4,3-b]indol-5(2H)-yl)-1-(4-methylpiperazin-1-yl)ethanone

HRID 1465400ノート

反応式

HRID 1465400 の反応式
[CH3:1][N:2]1[CH2:19][CH2:18][C:5]2[N:6]([CH2:14][C:15](O)=[O:16])[C:7]3[CH:8]=[CH:9][C:10]([CH3:13])=[CH:11][C:12]=3[C:4]=2[CH2:3]1.C(Cl)(=O)C(Cl)=O.[CH3:26][N:27]1[CH2:32][CH2:31][NH:30][CH2:29][CH2:28]1>C(Cl)Cl.CN(C1C=CN=CC=1)C>[CH3:1][N:2]1[CH2:19][CH2:18][C:5]2[N:6]([CH2:14][C:15]([N:30]3[CH2:31][CH2:32][N:27]([CH3:26])[CH2:28][CH2:29]3)=[O:16])[C:7]3[CH:8]=[CH:9][C:10]([CH3:13])=[CH:11][C:12]=3[C:4]=2[CH2:3]1

参加物

6

反応物 3

HCID 531671-MethylpiperazineHCID 65578Oxalyl chlorideHCID 591616282-(1,2,3,4-Tetrahydro-2,8-dimethylpyrido[4,3-b]indol-5-yl)acetic acid

生成物 1

HCID 578763372-(2,8-dimethyl-3,4-dihydro-1H-pyrido[4,3-b]indol-5(2H)-yl)-1-(4-methylpiperazin-1-yl)ethanone収率 13.4%

試薬・触媒・溶媒 2

HCID 142844-(Dimethylamino)pyridine触媒2 回HCID 6344Dichloromethane溶媒2 回

反応条件

温度
0 °C

実験手順

2-(2,8-dimethyl-3,4-dihydro-1H-pyrido[4,3-b]indol-5(2H)-yl)acetic acid (0.57 g, 2.2 mmol) was taken in DCM, cooled to 0° C., oxalyl chloride (0.228 mL, 2.6 mmol) was added, followed by the addition of DMAP (catalytic amount) and stirred for 1 h at RT. Solvent was evaporated under nitrogen, N-methyl piperazine (0.269 mg, 24 mmol) and DMAP (80 mg) in DCM was added slowly drop wise at RT (under nitrogen) and stirred at RT for 30 min. Reaction mixture was quenched with water, neutralized with 10% NaHCO3 solution and extracted with ethyl acetate. Organic layer was dried over anhydrous sodium sulfate and evaporated to dryness. Crude product was purified by reverse phase chromatography to afford 100 mg of 2-(2,8-dimethyl-3,4-dihydro-1H-pyrido[4,3-b]indol-5(2H)-yl)-1-(4-methylpiperazin-1-yl)ethanone as TFA salt.

後処理

  1. customSolvent was evaporated under nitrogen
  2. stirringstirred at RT for 30 min
  3. customReaction mixture
  4. customwas quenched with water
  5. extractionextracted with ethyl acetate
  6. dry with materialOrganic layer was dried over anhydrous sodium sulfate
  7. customevaporated to dryness
  8. customCrude product was purified by reverse phase chromatography

出典と根拠

ORDレコード
ord-3db42afe5705430e89f245eccb483f3f
出典データセット
uspto-grants-2015_04
特許番号
US08999978B2

反応ノート

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