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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
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HRID 39979 반응식
[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
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참가 물질

7

반응물 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

생성물 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
수율 80.3%

시약·촉매·용매 2

HCID 176Acetic Acid용매HCID 6212Chloroform용매

실험 절차

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.

후처리

  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]

출처 및 근거

ORD 기록
ord-36fc9322cff4462a80b95b3419485cc8
출처 데이터셋
uspto-grants-2013_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08524738B2

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