Potassium Phosphate, Tribasic → 1-[(2-Tert-butyl-6-cyclopropylpyrazolo[1,5-a]pyrimidin-3-yl)methyl]-4-propylpyrrolidin-2-one

HRID 1896425노트

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HRID 1896425 반응식
Br[C:2]1[CH:3]=[N:4][C:5]2[N:6]([N:8]=[C:9]([C:21]([CH3:24])([CH3:23])[CH3:22])[C:10]=2[CH2:11][N:12]2[CH2:16][CH:15]([CH2:17][CH2:18][CH3:19])[CH2:14][C:13]2=[O:20])[CH:7]=1.[CH:25]1(B(O)O)[CH2:27][CH2:26]1.[O-]P([O-])([O-])=O.[K+].[K+].[K+]>COCCOC.O.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.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>[C:21]([C:9]1[C:10]([CH2:11][N:12]2[CH2:16][CH:15]([CH2:17][CH2:18][CH3:19])[CH2:14][C:13]2=[O:20])=[C:5]2[N:4]=[CH:3][C:2]([CH:25]3[CH2:27][CH2:26]3)=[CH:7][N:6]2[N:8]=1)([CH3:24])([CH3:23])[CH3:22]

참가 물질

7

반응물 3

HCID 62657Potassium Phosphate, TribasicHCID 2760897Cyclopropylboronic acidHCID 577430771-[(6-Bromo-2-tertbutylpyrazolo(1,5-a)pyrimidin-3-yl)methyl]-4-propylpyrrolidin-2-one

생성물 1

HCID 536291231-[(2-Tert-butyl-6-cyclopropylpyrazolo[1,5-a]pyrimidin-3-yl)methyl]-4-propylpyrrolidin-2-one수율 29.2%

시약·촉매·용매 3

HCID 178420534HCID 178420534, 화합물촉매HCID 962Water용매HCID 80711,2-Dimethoxyethane용매

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온도
90 °C

실험 절차

To a solution of 1-[(6-bromo-2-tertbutylpyrazolo(1,5-a)pyrimidin-3-yl)methyl]-4-propylpyrrolidin-2-one 190 (0.56 mmol, 1 eq, 0.2 g) in 5 ml of DME is added successively palladium-tetrakis-triphenylphosphine (0.019 mmol, 0.03 eq, 22 mg), cyclopropyl-boronic acid (0.727 mmol, 1.1 eq, 62 mg), and K3PO4 (1.98 mmol, 3 eq, 0.42 g) dissolved in 4 ml of water. The mixture is degassed and stirred vigorously at 90° C. for 4 hours. The solvent is removed under reduce pressure, water is added and the resulting mixture is extracted with dichloromethane. The organic phases are combined, washed with brine and dried over MgSO4. Volatiles are removed under reduce pressure. The crude product is purified by chromatography on silicagel (CH2Cl2/MeOH/NH4OH: 99/1/0.1) to afford 58 mg of pure 1-[(2-tert-butyl-6-cyclopropylpyrazolo[1,5-a]pyrimidin-3-yl)methyl]-4-propylpyrrolidin-2-one 192 the compound in pure form.

후처리

  1. customThe mixture is degassed
  2. customThe solvent is removed
  3. additionis added
  4. extractionthe resulting mixture is extracted with dichloromethane
  5. washwashed with brine
  6. dry with materialdried over MgSO4
  7. customVolatiles are removed
  8. customThe crude product is purified by chromatography on silicagel (CH2Cl2/MeOH/NH4OH: 99/1/0.1)

출처 및 근거

ORD 기록
ord-73f3e27efa5340a0bd5415cb8916e716
출처 데이터셋
uspto-grants-2013_08
특허 번호
US08518943B2

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