2-Fluorobenzoyl chloride → N-(7-(cyclopropylamino)-3-formylpyrazolo[1,5-a]pyrimidin-5-yl)-2-fluorobenzamide

HRID 2037049노트

반응식

HRID 2037049 반응식
[NH2:1][C:2]1[CH:7]=[C:6]([NH:8][CH:9]2[CH2:11][CH2:10]2)[N:5]2[N:12]=[CH:13][C:14]([CH:15]=[O:16])=[C:4]2[N:3]=1.[F:17][C:18]1[CH:26]=[CH:25][CH:24]=[CH:23][C:19]=1[C:20](Cl)=[O:21].CCN(C(C)C)C(C)C>O1CCCC1>[CH:9]1([NH:8][C:6]2[N:5]3[N:12]=[CH:13][C:14]([CH:15]=[O:16])=[C:4]3[N:3]=[C:2]([NH:1][C:20](=[O:21])[C:19]3[CH:23]=[CH:24][CH:25]=[CH:26][C:18]=3[F:17])[CH:7]=2)[CH2:11][CH2:10]1

참가 물질

5

반응물 3

HCID 98082-Fluorobenzoyl chlorideHCID 81531DiisopropylethylamineHCID 583137635-Amino-7-(cyclopropylamino)pyrazolo[1,5-a]pyrimidine-3-carbaldehyde

생성물 1

HCID 86654663N-(7-(cyclopropylamino)-3-formylpyrazolo[1,5-a]pyrimidin-5-yl)-2-fluorobenzamide

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매

실험 절차

To 5-amino-7-(cyclopropylamino) pyrazolo[1,5-a]pyrimidine-3-carbaldehyde (step b) (30 mg, 0.138 mmol) in 1.0 mL tetrahydrofuran, stirring under nitrogen, was added 2-fluoro benzoyl chloride (33 ul, 0.275 mmol) and DIPEA (28.8 ul). The reaction mixture was stirred at room temperature for one hour. The reaction was then partitioned between ethyl acetate and water, the organic layer was dried under sodium sulfate concentrated on high vacuum to yield N-(7-(cyclopropylamino)-3-formylpyrazolo[1,5-a]pyrimidin-5-yl)-2-fluorobenzamide. The crude product was further dissolved in 1.0 mL ethanol, added hydantoin (41.2 mg, 0.411 mmol) and pipperdine (40.0 ul). The reaction was heated to 80° C. for three hours. Cooled the reaction mixture and yellow precipitate was filtered, washed with ethanol to yield 10 mg (40% yield, two steps) (Z)-N-(7-(cyclopropylamino)-3-((2,5-dioxoimidazolidin-4-ylidene)methyl)pyrazolo[1,5-a]pyrimidin-5-yl)-2-fluorobenzamide. LCMS (M+1=422)

후처리

  1. customThe reaction was then partitioned between ethyl acetate and water
  2. customthe organic layer was dried under sodium sulfate
  3. concentrationconcentrated on high vacuum

출처 및 근거

ORD 기록
ord-1603ba3ecc0d4a24b5969a518f705839
출처 데이터셋
uspto-grants-2013_11
특허 번호
US08575177B2

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