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Pyrrolidine → 1-ethyl-6-fluoro-7,8-bis((4-methoxybenzyl)oxy)-3-(pyrrolidin-1-ylmethyl)quinolin-4(1H)-one

HRID 525945
ノート
印刷プレビュー

反応式

HRID 525945 の反応式
[CH2:1]([N:3]1[C:12]2[C:7](=[CH:8][C:9]([F:33])=[C:10]([O:23][CH2:24][C:25]3[CH:30]=[CH:29][C:28]([O:31][CH3:32])=[CH:27][CH:26]=3)[C:11]=2[O:13][CH2:14][C:15]2[CH:20]=[CH:19][C:18]([O:21][CH3:22])=[CH:17][CH:16]=2)[C:6](=[O:34])[C:5]([CH:35]=O)=[CH:4]1)[CH3:2].[NH:37]1[CH2:41][CH2:40][CH2:39][CH2:38]1.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>ClCCCl.CC(O)=O>[CH2:1]([N:3]1[C:12]2[C:7](=[CH:8][C:9]([F:33])=[C:10]([O:23][CH2:24][C:25]3[CH:26]=[CH:27][C:28]([O:31][CH3:32])=[CH:29][CH:30]=3)[C:11]=2[O:13][CH2:14][C:15]2[CH:16]=[CH:17][C:18]([O:21][CH3:22])=[CH:19][CH:20]=2)[C:6](=[O:34])[C:5]([CH2:35][N:37]2[CH2:41][CH2:40][CH2:39][CH2:38]2)=[CH:4]1)[CH3:2]
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

6

反応物 3

HCID 31268PyrrolidineHCID 5049666Sodium triacetoxyborohydrideHCID 867328131-Ethyl-6-fluoro-7,8-bis((4-methoxybenzyl)oxy)-4-oxo-1,4-dihydroquinoline-3-carbaldehyde

生成物 1

HCID 867328141-ethyl-6-fluoro-7,8-bis((4-methoxybenzyl)oxy)-3-(pyrrolidin-1-ylmethyl)quinolin-4(1H)-one収率 58.8%

試薬・触媒・溶媒 2

HCID 176
Acetic Acid
触媒
HCID 111,2-Dichloroethane溶媒

反応条件

温度
25 °C

実験手順

To a solution of 1-ethyl-6-fluoro-7,8-bis((4-methoxybenzyl)oxy)-4-oxo-1,4-dihydroquinoline-3-carbaldehyde (15 g, 30.5 mmol) in 1,2-Dichloroethane (DCE) (100 mL) was added pyrrolidine (3.78 mL, 45.8 mmol), sodium triacetoxyborohydride (12.94 g, 61.0 mmol) and AcOH (0.087 mL, 1.526 mmol). The reaction mixture was stirred at 25° C. for 3 h. LCMS showed completion of the reaction. The mixture was extracted with DCM and washed with brine. The organic solution was dried over sodium sulfate and evaporated in vacuo. The crude material was purified by normal phase automatic silica column chromatography (Combiflash RF), using a 40 g golden column and eluting with MeOH/DCM (0-20%). The product was further purified with reverse phase automatic silica column chromatography (Combiflash RF), using a 150 g golden column and eluting with acetonitrile/water (0-60%) to afford 1-ethyl-6-fluoro-7,8-bis((4-methoxybenzyl)oxy)-3-(pyrrolidin-1-ylmethyl)quinolin-4(1H)-one (9.8 g, 17.93 mmol, 58.7% yield) as a yellow solid. LCMS: (M+H)+: 547.4.

後処理

  1. customcompletion of the reaction
  2. extractionThe mixture was extracted with DCM
  3. washwashed with brine
  4. dry with materialThe organic solution was dried over sodium sulfate
  5. customevaporated in vacuo
  6. customThe crude material was purified by normal phase automatic silica column chromatography (Combiflash RF)
  7. washeluting with MeOH/DCM (0-20%)
  8. customThe product was further purified with reverse phase automatic silica column chromatography (Combiflash RF)
  9. washeluting with acetonitrile/water (0-60%)

出典と根拠

ORDレコード
ord-1f3116bd575b4d428c3a55a1cdd020b7
出典データセット
uspto-grants-2016_05
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09340556B2

反応ノート

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