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Triethylamine → N-tert-butyl-2-(5-((6-methylpyridin-2-yl)ethynyl)thiophen-2-yl)imidazo[1,2-a]pyrazin-3-amine

HRID 29112
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HRID 29112 반응식
[C:1]([NH:5][C:6]1[N:10]2[CH:11]=[CH:12][N:13]=[CH:14][C:9]2=[N:8][C:7]=1[C:15]1[S:16][C:17]([C:20]#[CH:21])=[CH:18][CH:19]=1)([CH3:4])([CH3:3])[CH3:2].Br[C:23]1[CH:28]=[CH:27][CH:26]=[C:25]([CH3:29])[N:24]=1.CCN(CC)CC.C([O-])([O-])=O.[Na+].[Na+]>CN(C=O)C.CC(=O)OCC.[Cu]I.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1.CC(C)=O.CC#N>[C:1]([NH:5][C:6]1[N:10]2[CH:11]=[CH:12][N:13]=[CH:14][C:9]2=[N:8][C:7]=1[C:15]1[S:16][C:17]([C:20]#[C:21][C:23]2[CH:28]=[CH:27][CH:26]=[C:25]([CH3:29])[N:24]=2)=[CH:18][CH:19]=1)([CH3:4])([CH3:3])[CH3:2]
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참가 물질

10

반응물 4

HCID 8471TriethylamineHCID 10340Sodium CarbonateHCID 792052-Bromo-6-methylpyridineHCID 86613493Tert-butyl-[2-(5-ethynyl-thiophen-2-yl)-imidazo[1,2-a]pyrazin-3-yl]-amine

생성물 1

HCID 69319611N-tert-butyl-2-(5-((6-methylpyridin-2-yl)ethynyl)thiophen-2-yl)imidazo[1,2-a]pyrazin-3-amine수율 42%

시약·촉매·용매 5

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)촉매
HCID 178418476HCID 178418476, 화합물촉매
HCID 6228Dimethylformamide용매
HCID 8857Ethyl Acetate용매
HCID 21918305Acetone acetonitrile용매

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온도
50 °C

실험 절차

300 mg (1.0 mmol) of tert-butyl-[2-(5-ethynyl-thiophen-2-yl)-imidazo[1,2-a]pyrazin-3-yl]-amine were dissolved together with 138 μl (1.2 mmol) of 2-bromo-6-methyl-pyridine in DMF (7 ml). 1.4 ml (10.0 mmol) of NEt3, 19 mg (0.1 mmol) of copper(I) iodide and 71 mg (0.1 mmol) bis(triphenylphosphine)-palladium(II) chloride were added to this solution. The reaction mixture was heated to 50° C. for 6 h. The mixture was then diluted with EA and combined with a 1M aq. Na2CO3 solution. The phases were separated and the aq. phase was extracted with EA. The combined organic phases were dried over MgSO4, filtered and evaporated under a vacuum. 166 mg (0.42 mmol, 42%) of N-tert-butyl-2-(5-((6-methylpyridin-2-yl)ethynyl)thiophen-2-yl)imidazo[1,2-a]pyrazin-3-amine were obtained by CC (acetone/MeCN 1:1) of the group.

후처리

  1. customThe phases were separated
  2. extractionthe aq. phase was extracted with EA
  3. dry with materialThe combined organic phases were dried over MgSO4
  4. filtrationfiltered
  5. customevaporated under a vacuum

출처 및 근거

ORD 기록
ord-7cde2f995f364bf295165dd97c1841c8
출처 데이터셋
uspto-grants-2008_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07420056B2

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