Triethylamine → 3-methyl-1-((6-methylpyridin-2-yl)methyl)-4-nitro-1H-indazole

HRID 706628노트

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HRID 706628 반응식
I[C:2]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][C:9]=2[N+:11]([O-:13])=[O:12])[N:4]([CH2:14][C:15]2[CH:20]=[CH:19][CH:18]=[C:17]([CH3:21])[N:16]=2)[N:3]=1.[C:22]1(C)C=CC=CC=1P(C1C=CC=CC=1C)C1C=CC=CC=1C.C[Sn](C)(C)C.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=O)C>[CH3:22][C:2]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][C:9]=2[N+:11]([O-:13])=[O:12])[N:4]([CH2:14][C:15]2[CH:20]=[CH:19][CH:18]=[C:17]([CH3:21])[N:16]=2)[N:3]=1

참가 물질

7

반응물 4

HCID 8471TriethylamineHCID 11661TetramethyltinHCID 80271Tri-o-tolylphosphineHCID 672597623-iodo-1-((6-methylpyridin-2-yl)methyl)-4-nitro-1H-indazole

생성물 1

HCID 672592993-methyl-1-((6-methylpyridin-2-yl)methyl)-4-nitro-1H-indazole수율 394.5%

시약·촉매·용매 2

HCID 9811564Bis(dibenzylideneacetone)palladium촉매HCID 6228Dimethylformamide용매

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온도
80 °C

실험 절차

A flask equipped with a reflux condenser and a nitrogen line was charged with 3-iodo-1-((6-methylpyridin-2-yl)methyl)-4-nitro-1H-indazole (Example 89, Steps A-B; 100 mg, 0.254 mmol), trio-tolylphosphine (15.4 mg, 0.051 mmol), and tris(dibenzylideneacetone)dipalladium (0) (23 mg, 0.025 mmol). The flask was purged with nitrogen and anhydrous DMF (30 mL), and tetramethylstannane (0.04 ml, 0.28 mmol) were added, followed by triethylamine (0.04 mL, 0.30 mmol). The flask was degassed under nitrogen and heated at 80° C. for 6 hours. The reaction mixture was cooled to ambient temperature, diluted with water, and extracted 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 2% MeOH/DCM as eluent to afford 56.8 mg of desired product as a yellow solid.

후처리

  1. customA flask equipped with a reflux condenser
  2. additionwere added
  3. customThe flask was degassed under nitrogen
  4. temperatureThe reaction mixture was cooled to ambient temperature
  5. additiondiluted with water
  6. extractionextracted with DCM and EtOAc
  7. dry with materialThe combined organic extracts were dried over anhydrous sodium sulfate
  8. concentrationconcentrated

출처 및 근거

ORD 기록
ord-dc88d900ac2149bf8ad921550e65a844
출처 데이터셋
uspto-grants-2015_11
특허 번호
US09174981B2

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