Potassium Carbonate → But-2-ynyl 4-[4-[(3aS,7aS)-2-oxo-3a,4,5,6,7,7a-hexahydro-3H-benzimidazol-1-yl]-1-piperidyl]-4-methyl-piperidine-1-carboxylate

HRID 1642500노트

반응식

HRID 1642500 반응식
[CH3:1][C:2]1([N:8]2[CH2:13][CH2:12][CH:11]([N:14]3[C@H:18]4[CH2:19][CH2:20][CH2:21][CH2:22][C@@H:17]4[NH:16][C:15]3=[O:23])[CH2:10][CH2:9]2)[CH2:7][CH2:6][NH:5][CH2:4][CH2:3]1.C(=O)([O-])[O-].[K+].[K+].Cl[C:31]([O:33][CH2:34][C:35]#[C:36][CH3:37])=[O:32]>O.ClCCl>[O:23]=[C:15]1[N:14]([CH:11]2[CH2:12][CH2:13][N:8]([C:2]3([CH3:1])[CH2:7][CH2:6][N:5]([C:31]([O:33][CH2:34][C:35]#[C:36][CH3:37])=[O:32])[CH2:4][CH2:3]3)[CH2:9][CH2:10]2)[C@H:18]2[CH2:19][CH2:20][CH2:21][CH2:22][C@@H:17]2[NH:16]1

참가 물질

6

반응물 3

HCID 11430Potassium CarbonateHCID 41316692-Butyn-1-yl chloroformateHCID 57619802(3aS,7aS)-1-[1-(4-methyl-4-piperidyl)-4-piperidyl]-3a,4,5,6,7,7a-hexahydro-3H-benzoimidazol-2-one

생성물 1

HCID 25221447But-2-ynyl 4-[4-[(3aS,7aS)-2-oxo-3a,4,5,6,7,7a-hexahydro-3H-benzimidazol-1-yl]-1-piperidyl]-4-methyl-piperidine-1-carboxylate수율 7.59%

시약·촉매·용매 2

HCID 962Water용매HCID 6344Dichloromethane용매

실험 절차

To a solution of (3aS,7aS)-3-[1-(4-methyl-4-piperidyl)-4-piperidyl]-3a,4,5,6,7,7a-hexahydro-1H-benzimidazol-2-one (HCl salt, 0.4105 g, 1.15 mmol) and potassium carbonate (0.170 g, 1.23 mmol) in water (3.00 mL) was added a solution of but-2-ynyl chloroformate (0.156 mL, 1.38 mmol) in dichloromethane (3 mL). The reaction mixture was stirred at room temperature overnight. The mixture was poured into hydrometrix varian column chem elut catridge column and rinsed with dichloromethane (3 Column volumes). Concentrated in vacuo and the residue was purified by flash chromatography (0 to 50% MeOH/Ethyl acetate) and followed by preparative LC/MS (high pH) to give the title compound (0.036 g, 7.59%). 1H NMR (400 MHz, CHLOROFORM-D) δ ppm 1H NMR (400 MHz, CDCl3) δ ppm 1.30-1.47 (m, 6H), 1.49 (s, 2H), 1.62-1.76 (m, 1H), 1.76-2.00 (m, 9H), 2.34 (s, 2H), 2.72-2.98 (m, 6H), 2.99-3.09 (m, 2H), 3.49-3.85 (m, 2H), 4.11 (s, 1H), 4.27 (s, 2H), 4.49 (s, 1H), 4.61-4.72 (m, 2H) MS (M+1): 417.3.

후처리

  1. additionThe mixture was poured into hydrometrix varian column chem elut catridge column
  2. washrinsed with dichloromethane (3 Column volumes)
  3. concentrationConcentrated in vacuo
  4. customthe residue was purified by flash chromatography (0 to 50% MeOH/Ethyl acetate)

출처 및 근거

ORD 기록
ord-ae3371726be84aecaae6f1cc7b2d718c
출처 데이터셋
uspto-grants-2012_02
특허 번호
US08119661B2

반응 노트

불러오는 중…