Triethylamine → (3R)-3-methyl-4-(1-methyl-6-oxo-1,6-dihydro-[4,4']bipyrimidinyl-2-yl)-piperazine-1-carboxylic acid tert-butyl ester

HRID 1045691노트

반응식

HRID 1045691 반응식
Cl[C:2]1[N:7]([CH3:8])[C:6](=[O:9])[CH:5]=[C:4]([C:10]2[CH:15]=[CH:14][N:13]=[CH:12][N:11]=2)[N:3]=1.[CH3:16][C@H:17]1[NH:22][CH2:21][CH2:20][N:19]([C:23]([O:25][C:26]([CH3:29])([CH3:28])[CH3:27])=[O:24])[CH2:18]1.C(N(CC)CC)C>CN1CCCC1=O>[C:26]([O:25][C:23]([N:19]1[CH2:20][CH2:21][N:22]([C:2]2[N:7]([CH3:8])[C:6](=[O:9])[CH:5]=[C:4]([C:10]3[CH:15]=[CH:14][N:13]=[CH:12][N:11]=3)[N:3]=2)[C@H:17]([CH3:16])[CH2:18]1)=[O:24])([CH3:29])([CH3:27])[CH3:28]

참가 물질

5

반응물 3

HCID 8471TriethylamineHCID 2756811(R)-1-Boc-3-methylpiperazineHCID 179544602-Chloro-3-methyl-6-(pyrimidin-4-YL)pyrimidin-4-one

생성물 1

HCID 57870141(3R)-3-methyl-4-(1-methyl-6-oxo-1,6-dihydro-[4,4']bipyrimidinyl-2-yl)-piperazine-1-carboxylic acid tert-butyl ester수율 74.4%

시약·촉매·용매 1

HCID 13387N-methyl-2-pyrrolidone용매

실험 절차

A solution of 2-chloro-3-methyl-6-(pyrimidin-4-yl)-3H-pyrimidin-4-one (5.3 g, 24 mmol), tert-butyl (3R)-3-methylpiperazine-1-carboxylate (5.0 g, 25 mmol) and triethylamine (7.6 g, 75 mmol) in N-methyl-2-pyrrolidone (25 ml) was stirred for 6 hours at 90° C. The solution was partitioned between water and ethyl acetate, and the organic layer was washed with water, brine, dried over sodium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (eluent; ethyl acetate) to afford (3R)-3-methyl-4-(1-methyl-6-oxo-1,6-dihydro-[4,4′]bipyrimidinyl-2-yl)-piperazine-1-carboxylic acid tert-butyl ester (6.9 g, 71%).

후처리

  1. customThe solution was partitioned between water and ethyl acetate
  2. washthe organic layer was washed with water, brine
  3. dry with materialdried over sodium sulfate
  4. concentrationconcentrated under reduced pressure
  5. customThe residue was purified by silica gel column chromatography (eluent; ethyl acetate)

출처 및 근거

ORD 기록
ord-df6a4fdb67654ebc8cd50310dd9a758f
출처 데이터셋
uspto-grants-2013_10
특허 번호
US08569294B2

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