Sodium Bicarbonate → 1-(2-(4-((2,3-dihydro(1,4)dioxino(2,3-c)pyridin-7-ylmethyl)amino)-3-fluoropiperidin-1-yl)ethyl)-7-methoxyquinoxalin-2(1H)-one

HRID 40002ノート

反応式

HRID 40002 の反応式
[F:1][CH:2]1[C:7](=O)[CH2:6][CH2:5][N:4]([CH2:9][CH2:10][N:11]2[C:20]3[C:15](=[CH:16][CH:17]=[C:18]([O:21][CH3:22])[CH:19]=3)[N:14]=[CH:13][C:12]2=[O:23])[CH2:3]1.[O:24]1[C:33]2[CH:32]=[C:31]([CH2:34][NH2:35])[N:30]=[CH:29][C:28]=2[O:27][CH2:26][CH2:25]1.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C(=O)([O-])O.[Na+]>C(Cl)(Cl)Cl.C(O)(=O)C.ClCCl>[O:24]1[C:33]2[CH:32]=[C:31]([CH2:34][NH:35][CH:7]3[CH2:6][CH2:5][N:4]([CH2:9][CH2:10][N:11]4[C:20]5[C:15](=[CH:16][CH:17]=[C:18]([O:21][CH3:22])[CH:19]=5)[N:14]=[CH:13][C:12]4=[O:23])[CH2:3][CH:2]3[F:1])[N:30]=[CH:29][C:28]=2[O:27][CH2:26][CH2:25]1

参加物

8

反応物 4

HCID 516892Sodium BicarbonateHCID 5049666Sodium triacetoxyborohydrideHCID 593981871-(2,3-Dihydro[1,4]dioxino[2,3-c]pyridin-7-yl)methanamineHCID 593983671-(2-(3-fluoro-4-oxopiperidin-1-yl)ethyl)-7-methoxyquinoxalin-2(1H)-one

生成物 1

HCID 250084121-(2-(4-((2,3-dihydro(1,4)dioxino(2,3-c)pyridin-7-ylmethyl)amino)-3-fluoropiperidin-1-yl)ethyl)-7-methoxyquinoxalin-2(1H)-one収率 43.9%

試薬・触媒・溶媒 3

HCID 176Acetic Acid溶媒HCID 6212Chloroform溶媒HCID 6344Dichloromethane溶媒

実験手順

To 2 mL of a dichloromethane solution containing 48 mg of 1-(2-(3-fluoro-4-oxopiperidin-1-yl)ethyl)-7-methoxyquinoxalin-2(1H)-one and 30 mg of 1-(2,3-dihydro(1,4)dioxino(2,3-c)pyridin-7-yl)methaneamine, 26 μL of acetic acid was added, and stirred at room temperature for 1.5 hours. To the reaction mixture, 48 mg of sodium triacetoxyborohydride was added, and stirred for 1.5 hours. To the reaction mixture, aqueous saturated sodium hydrogen carbonate solution and chloroform were added, the organic layer was separated, dried over anhydrous magnesium sulfate, and the solvent was removed under reduced pressure. The residue thus obtained was purified by basic silica gel column chromatography [eluent; chloroform:methanol=50:1], to give 31 mg of 1-(2-(4-((2,3-dihydro(1,4)dioxino(2,3-c)pyridin-7-ylmethyl)amino)-3-fluoropiperidin-1-yl)ethyl)-7-methoxyquinoxalin-2(1H)-one as a brown oil.

後処理

  1. additionwas added
  2. stirringstirred for 1.5 hours
  3. customthe organic layer was separated
  4. dry with materialdried over anhydrous magnesium sulfate
  5. customthe solvent was removed under reduced pressure
  6. customThe residue thus obtained
  7. customwas purified by basic silica gel column chromatography [eluent; chloroform:methanol=50:1]

出典と根拠

ORDレコード
ord-c9222d8adb9147b48d778bd3a8bee1f3
出典データセット
uspto-grants-2013_09
特許番号
US08524738B2

反応ノート

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