4-Carboxymethoxy-3-methyl-benzoic Acid Methyl Ester → 4-{2-[4-(3,3-Dimethyl-butyl)-piperazin-1-yl]-2-oxo-ethoxy}-3-methyl-benzoic Acid Methyl Ester

HRID 220848노트

반응식

HRID 220848 반응식
[CH3:1][O:2][C:3](=[O:16])[C:4]1[CH:9]=[CH:8][C:7]([O:10][CH2:11][C:12]([OH:14])=O)=[C:6]([CH3:15])[CH:5]=1.Cl.Cl.[CH3:19][C:20]([CH3:30])([CH3:29])[CH2:21][CH2:22][N:23]1[CH2:28][CH2:27][NH:26][CH2:25][CH2:24]1>CN(C1C=CN=CC=1)C.ClCCl.C(N(CC)CC)C>[CH3:1][O:2][C:3](=[O:16])[C:4]1[CH:9]=[CH:8][C:7]([O:10][CH2:11][C:12]([N:26]2[CH2:27][CH2:28][N:23]([CH2:22][CH2:21][C:20]([CH3:30])([CH3:29])[CH3:19])[CH2:24][CH2:25]2)=[O:14])=[C:6]([CH3:15])[CH:5]=1

참가 물질

6

반응물 2

HCID 575553254-Carboxymethoxy-3-methyl-benzoic Acid Methyl EsterHCID 670538001-(3,3-Dimethyl-butyl)-piperazine dihydrochloride

생성물 1

HCID 670538104-{2-[4-(3,3-Dimethyl-butyl)-piperazin-1-yl]-2-oxo-ethoxy}-3-methyl-benzoic Acid Methyl Ester수율 55%

시약·촉매·용매 3

HCID 142844-(Dimethylamino)pyridine촉매HCID 6344Dichloromethane용매HCID 8471Triethylamine용매

실험 절차

WSCD (5.14 g, 27.2 mmol) and DMAP (1.64 g, 13.6 mmol) were added to a solution of 4-carboxymethoxy-3-methyl-benzoic acid methyl ester from Example E41.2 (3.04 g, 13.6 mmol) in dichloromethane (100 ml) and triethylamine (5 ml). The mixture was stirred for 1 h at room temperature then 1-(3,3-dimethyl-butyl)-piperazine dihydro-chloride from Example E4 (3.67 g, 14.9 mmol) was added. The mixture was stirred for 20 h at room temperature then solvents were removed in vacuo. The residue was dissolved in EtOAc, washed with saturated NaHCO3 then brine, dried and concentrated in vacuo. The residue was purified by flash chromatography on silica gel (eluant; EtOAc) to yield the title compound (2.8 g, 55%).

후처리

  1. stirringThe mixture was stirred for 20 h at room temperature
  2. customsolvents were removed in vacuo
  3. dissolutionThe residue was dissolved in EtOAc
  4. washwashed with saturated NaHCO3
  5. dry with materialbrine, dried
  6. concentrationconcentrated in vacuo
  7. customThe residue was purified by flash chromatography on silica gel (eluant; EtOAc)

출처 및 근거

ORD 기록
ord-7f7f9a44bc214835adeb44cf36180ae2
출처 데이터셋
uspto-grants-2012_06
특허 번호
US08202858B2

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