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Sodium Bicarbonate → 1-(2-{4-[(2,3-dihydro[1,4]dioxino[2,3-c]pyridin-7-ylmethyl)amino]piperidin-1-yl}ethyl)-7-methoxyquinoxalin-2(1H)-one

HRID 39979
ノート
印刷プレビュー

反応式

HRID 39979 の反応式
[NH2:1][CH:2]1[CH2:7][CH2:6][N:5]([CH2:8][CH2:9][N:10]2[C:19]3[C:14](=[CH:15][CH:16]=[C:17]([O:20][CH3:21])[CH:18]=3)[N:13]=[CH:12][C:11]2=[O:22])[CH2:4][CH2:3]1.[O:23]1[C:32]2[CH:31]=[C:30]([CH:33]=O)[N:29]=[CH:28][C:27]=2[O:26][CH2:25][CH2:24]1.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C(=O)([O-])O.[Na+]>C(O)(=O)C.C(Cl)(Cl)Cl>[O:23]1[C:32]2[CH:31]=[C:30]([CH2:33][NH:1][CH:2]3[CH2:3][CH2:4][N:5]([CH2:8][CH2:9][N:10]4[C:19]5[C:14](=[CH:15][CH:16]=[C:17]([O:20][CH3:21])[CH:18]=5)[N:13]=[CH:12][C:11]4=[O:22])[CH2:6][CH2:7]3)[N:29]=[CH:28][C:27]=2[O:26][CH2:25][CH2:24]1
参加物実験手順後処理出典と根拠反応ノート

参加物

7

反応物 4

HCID 516892Sodium BicarbonateHCID 5049666Sodium triacetoxyborohydrideHCID 218736682,3-Dihydro[1,4]dioxino[2,3-c]pyridine-7-carbaldehydeHCID 593978381-[2-(4-Aminopiperidin-1-yl)ethyl]-7-methoxyquinoxalin-2(1H)-one

生成物 1

HCID 159825331-(2-{4-[(2,3-dihydro[1,4]dioxino[2,3-c]pyridin-7-ylmethyl)amino]piperidin-1-yl}ethyl)-7-methoxyquinoxalin-2(1H)-one収率 80.3%

試薬・触媒・溶媒 2

HCID 176Acetic Acid溶媒HCID 6212Chloroform溶媒

実験手順

To 10 mL of a chloroform solution containing 500 mg of 1-(2-(4-aminopiperidin-1-yl)ethyl)-7-methoxyquinoxalin-2(1H)-one and 246 mg of 2,3-dihydro-1,4-dioxino[2,3-c]pyridine-7-carbaldehyde, 100 mg of acetic acid was added, and stirred at room temperature for 2 hours. To the reaction mixture, 526 mg of sodium triacetoxyborohydride was added, and stirred for 18 hours. Aqueous saturated sodium hydrogen carbonate solution was added, and the organic layer was separated. The organic layer was washed with aqueous saturated sodium chloride solution, dried over anhydrous magnesium sulfate, and the solvent was removed under reduced pressure. The residue thus obtained was purified by silica gel column chromatography [Silica Gel; Kanto Chemical Co., Inc., Silica Gel 60N, eluent; chloroform:methanol=10:1], to give 540 mg of 1-(2-(4-((2,3-dihydro-1,4-dioxino[2,3-c]pyridin-7-yl)methylamino)piperidin-1-yl)ethyl)-7-methoxy-quinoxalin-2(1H)-one as a brown oil.

後処理

  1. additionwas added
  2. stirringstirred for 18 hours
  3. customthe organic layer was separated
  4. washThe organic layer was washed with aqueous saturated sodium chloride solution
  5. dry with materialdried over anhydrous magnesium sulfate
  6. customthe solvent was removed under reduced pressure
  7. customThe residue thus obtained
  8. customwas purified by silica gel column chromatography [Silica Gel; Kanto Chemical Co., Inc., Silica Gel 60N, eluent; chloroform:methanol=10:1]

出典と根拠

ORDレコード
ord-36fc9322cff4462a80b95b3419485cc8
出典データセット
uspto-grants-2013_09
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08524738B2

反応ノート

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