2,3-Dihydro-1,4-benzodioxin-6-carbaldehyde → Tert-butyl 4-((2,3-dihydro-1,4-benzodioxin-6-ylmethyl)amino)-4-((methylamino)carbonyl)piperidine-1-carboxylate

HRID 39678

반응식

HRID 39678 반응식
[NH2:1][C:2]1([C:15]([NH:17][CH3:18])=[O:16])[CH2:7][CH2:6][N:5]([C:8]([O:10][C:11]([CH3:14])([CH3:13])[CH3:12])=[O:9])[CH2:4][CH2:3]1.[O:19]1[C:24]2[CH:25]=[CH:26][C:27]([CH:29]=O)=[CH:28][C:23]=2[O:22][CH2:21][CH2:20]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:19]1[C:24]2[CH:25]=[CH:26][C:27]([CH2:29][NH:1][C:2]3([C:15]([NH:17][CH3:18])=[O:16])[CH2:3][CH2:4][N:5]([C:8]([O:10][C:11]([CH3:12])([CH3:13])[CH3:14])=[O:9])[CH2:6][CH2:7]3)=[CH:28][C:23]=2[O:22][CH2:21][CH2:20]1

참가 물질

8

반응물 4

HCID 2481272,3-Dihydro-1,4-benzodioxin-6-carbaldehydeHCID 516892Sodium BicarbonateHCID 5049666Sodium triacetoxyborohydrideHCID 58893187Tert-butyl 4-amino-4-(methylcarbamoyl)piperidine-1-carboxylate

생성물 1

HCID 67538791Tert-butyl 4-((2,3-dihydro-1,4-benzodioxin-6-ylmethyl)amino)-4-((methylamino)carbonyl)piperidine-1-carboxylate

시약·촉매·용매 3

HCID 176Acetic Acid용매HCID 6212Chloroform용매HCID 6344Dichloromethane용매

실험 절차

To 5 mL of a dichloromethane solution containing 0.30 g of tert-butyl 4-amino-4-((methylamino)carbonyl)piperidine-1-carboxylate, 0.16 g of 2,3-dihydro-1,4-benzodioxin-6-carbaldehyde and 57 μL of acetic acid were added, the mixture was stirred at room temperature for 2 hours. The reaction mixture was added with 0.32 g of sodium triacetoxyborohydride and stirred at the same temperature for 30 minutes. Thereto were added chloroform and an aqueous saturated sodium hydrogen carbonate solution. The organic layer was separated, and the aqueous layer was extracted with chloroform. The organic layer and the extract were combined, the resultant solution was washed sequentially with water and an aqueous saturated sodium chloride solution and dried over anhydrous magnesium sulfate, and the solvent was removed under reduced pressure. The residue thus obtained was purified by silica gel column chromatography [eluent; chloroform:methanol=10:1] to obtain 0.31 g of a pale yellow oily substance, tert-butyl 4-((2,3-dihydro-1,4-benzodioxin-6-ylmethyl)amino)-4-((methylamino)carbonyl)piperidine-1-carboxylate.

후처리

  1. additionwere added
  2. stirringstirred at the same temperature for 30 minutes
  3. customThe organic layer was separated
  4. extractionthe aqueous layer was extracted with chloroform
  5. washthe resultant solution was washed sequentially with water
  6. dry with materialan aqueous saturated sodium chloride solution and dried over anhydrous magnesium sulfate
  7. customthe solvent was removed under reduced pressure
  8. customThe residue thus obtained
  9. customwas purified by silica gel column chromatography [eluent; chloroform:methanol=10:1]

출처 및 근거

ORD 기록
ord-e15549b6a8e941b89f1e8161579091a5
출처 데이터셋
uspto-grants-2013_09
특허 번호
US08524738B2

연결된 노트

불러오는 중…