Triethylamine → (Z)-7-(2-ethoxyvinyl)-N-(3-ethyl-1-((6-methylpyridin-2-yl)methyl)-1H-indazol-4-yl)imidazo[1,2-a]pyridine-3-carboxamide

HRID 79446노트

반응식

HRID 79446 반응식
Br[C:2]1[CH:7]=[CH:6][N:5]2[C:8]([C:11]([NH:13][C:14]3[CH:22]=[CH:21][CH:20]=[C:19]4[C:15]=3[C:16]([CH2:31][CH3:32])=[N:17][N:18]4[CH2:23][C:24]3[CH:29]=[CH:28][CH:27]=[C:26]([CH3:30])[N:25]=3)=[O:12])=[CH:9][N:10]=[C:4]2[CH:3]=1.C1(C)C=CC=CC=1P(C1C=CC=CC=1C)C1C=CC=CC=1C.C([Sn](CCCC)(CCCC)/[CH:60]=[CH:61]\[O:62][CH2:63][CH3:64])CCC.C(N(CC)CC)C>C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].CN(C)C=O>[CH2:63]([O:62]/[CH:61]=[CH:60]\[C:2]1[CH:7]=[CH:6][N:5]2[C:8]([C:11]([NH:13][C:14]3[CH:22]=[CH:21][CH:20]=[C:19]4[C:15]=3[C:16]([CH2:31][CH3:32])=[N:17][N:18]4[CH2:23][C:24]3[CH:29]=[CH:28][CH:27]=[C:26]([CH3:30])[N:25]=3)=[O:12])=[CH:9][N:10]=[C:4]2[CH:3]=1)[CH3:64]

참가 물질

7

반응물 4

HCID 8471TriethylamineHCID 80271Tri-o-tolylphosphineHCID 5706773cis-1-Ethoxy-2-(tri-n-butylstannyl)ethyleneHCID 672595577-Bromo-N-(3-ethyl-1-((6-methylpyridin-2-yl)methyl)-1H-indazol-4-yl)imidazo[1,2-a]pyridine-3-carboxamide

생성물 1

HCID 70814943(Z)-7-(2-ethoxyvinyl)-N-(3-ethyl-1-((6-methylpyridin-2-yl)methyl)-1H-indazol-4-yl)imidazo[1,2-a]pyridine-3-carboxamide수율 75.9%

시약·촉매·용매 2

HCID 9811564Bis(dibenzylideneacetone)palladium촉매HCID 6228Dimethylformamide용매

반응 조건

온도
100 °C

실험 절차

A round bottom flask was charged with 7-Bromo-N-(3-ethyl-1-((6-methylpyridin-2-yl)methyl)-1H-indazol-4-yl)imidazo[1,2-a]pyridine-3-carboxamide (330 mg, 0.674 mmol), trio-tolylphosphine (41 mg, 0.135 mmol), tris(dibenzylideneacetone)dipalladium (62 mg, 0.067 mmol) To the flask were added 10 mL of anhydrous dimethylformamide, followed by (Z)-tributyl(2-ethoxyvinyl)stannane (0.34 ml, 1.01 mmol), and triethylamine (0.11 mL, 0.81 mmol). The reaction mixture was degassed under nitrogen, and stirred at 100° C. for 10 hours. The reaction mixture was cooled, diluted with water, and extracted thoroughly with DCM and EtOAc. The combined organic extracts were dried over anhydrous sodium sulfate, and concentrated. The crude product was subjected to preparative thin-layer chromatography on silica with 5% MeOH-DCM as eluent to afford 246 mg of product as a yellow, foamy solid.

후처리

  1. customThe reaction mixture was degassed under nitrogen
  2. temperatureThe reaction mixture was cooled
  3. additiondiluted with water
  4. extractionextracted thoroughly with DCM and EtOAc
  5. dry with materialThe combined organic extracts were dried over anhydrous sodium sulfate
  6. concentrationconcentrated

출처 및 근거

ORD 기록
ord-a0cab07e01ee48f2bc5e7ba0d3813171
출처 데이터셋
uspto-grants-2014_09
특허 번호
US08841455B2

반응 노트

불러오는 중…