2-(Tributylstannyl)pyridine → 7-(1-azidoethyl)-3-methyl-6-pyridin-2-yl-5H-[1,3]thiazolo[3,2-a]pyrimidin-5-one

HRID 58244노트

반응식

HRID 58244 반응식
C([Sn](CCCC)(CCCC)[C:6]1[CH:11]=[CH:10][CH:9]=[CH:8][N:7]=1)CCC.[N:20]([CH:23]([C:25]1[N:26]=[C:27]2[S:35][CH:34]=[C:33]([CH3:36])[N:28]2[C:29](=[O:32])[C:30]=1Br)[CH3:24])=[N+:21]=[N-:22]>O1CCOCC1.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[N:20]([CH:23]([C:25]1[N:26]=[C:27]2[S:35][CH:34]=[C:33]([CH3:36])[N:28]2[C:29](=[O:32])[C:30]=1[C:6]1[CH:11]=[CH:10][CH:9]=[CH:8][N:7]=1)[CH3:24])=[N+:21]=[N-:22]

참가 물질

5

반응물 2

HCID 6077842-(Tributylstannyl)pyridineHCID 581114387-(1-azidoethyl)-6-bromo-3-methyl-5H-thiazolo[3,2-a]pyrimidin-5-one

생성물 1

HCID 866500667-(1-azidoethyl)-3-methyl-6-pyridin-2-yl-5H-[1,3]thiazolo[3,2-a]pyrimidin-5-one수율 13.1%

시약·촉매·용매 2

HCID 178418397HCID 178418397, 화합물촉매HCID 312751,4-Dioxane용매

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온도
65 °C

실험 절차

A mixture of 2-(tributylstannyl)pyridine (Aldrich, 0.176 g, 0.382 mmol), 7-(1-azidoethyl)-6-bromo-3-methyl-5H-[1,3]thiazolo[3,2-a]pyrimidin-5-one (from example 8, step 3; 0.10 g, 0.318 mmol), and tetrakis(triphenylphosphine)palladium (0) (0.0184 g, 0.0159 mmol) in 1,4-dioxane (0.5 mL) was heated at 65° C. overnight. After being cooled and quenched with saturated ammonium chloride, the resulting mixture was extracted with EtOAc. The organic layers were combined, washed with brine, dried and evaporated to dryness. The residue was purified on silica gel, eluting with 0 to 100% EtOAc in hexane, to provide the desired product (13 mg, 13%). LCMS calculated for C14H13N6OS (M+H)+: m/z=313.1. Found: 313.0.

후처리

  1. temperatureAfter being cooled
  2. customquenched with saturated ammonium chloride
  3. extractionthe resulting mixture was extracted with EtOAc
  4. washwashed with brine
  5. customdried
  6. customevaporated to dryness
  7. customThe residue was purified on silica gel
  8. washeluting with 0 to 100% EtOAc in hexane

출처 및 근거

ORD 기록
ord-30587980d95b4287b0aaa8d0fe257e0e
출처 데이터셋
uspto-grants-2016_09
특허 번호
US09434746B2

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