Sodium Carbonate → 3-phenyl-1-trityl-1H-pyrazolo[3,4-d]pyrimidin-4-amine

HRID 432457노트

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HRID 432457 반응식
I[C:2]1[C:10]2[C:5](=[N:6][CH:7]=[N:8][C:9]=2[NH2:11])[N:4]([C:12]([C:25]2[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=2)([C:19]2[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=2)[C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)[N:3]=1.[C:31]1(B(O)O)[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=1.C(=O)([O-])[O-].[Na+].[Na+]>CN(C)C=O.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>[C:31]1([C:2]2[C:10]3[C:5](=[N:6][CH:7]=[N:8][C:9]=3[NH2:11])[N:4]([C:12]([C:25]3[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=3)([C:19]3[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=3)[C:13]3[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=3)[N:3]=2)[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=1

참가 물질

7

반응물 3

HCID 10340Sodium CarbonateHCID 66827Phenylboronic AcidHCID 223468963-iodo-1-trityl-1H-pyrazolo[3,4-d]pyrimidin-4-amine

생성물 1

HCID 223469183-phenyl-1-trityl-1H-pyrazolo[3,4-d]pyrimidin-4-amine수율 45.1%

시약·촉매·용매 3

HCID 178418397HCID 178418397, 화합물촉매HCID 962Water용매2회HCID 6228Dimethylformamide용매

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온도
80 °C

실험 절차

A solution of 3-iodo-1-trityl-1H-pyrazolo[3,4-d]pyrimidin-4-amine (1.0 g, 1.99 mmol) in dimethylformamide (20 mL) was treated with phenylboronic acid (0.485 g, 3.8 mmol), tetrakis(triphenylphosphine)palladium (0.138 g, 0.119 mmol), and a solution of sodium carbonate (0.506 g, 4.78 mmol) in water (10 mL). The reaction mixture was stirred at 80° C. for 18.5 h under a nitrogen atmosphere. The reaction mixture was cooled to room temperature and water (15 mL) was added. The precipitate was filtered and was washed with water. The crude solid was triturated with diethyl ether (30 mL). The resulting solid was dried over night on the lyophilizer to give 0.407 g (45%) of 3-phenyl-1-trityl-1H-pyrazolo[3,4-d]pyrimidin-4-amine. 1H NMR (DMSO-d6, 400 MHz) δ 7.9416 (s, 1H), 7.6190-7.6011 (m, 2H), 7.5369-7.4493 (m, 3H), 7.3995-7.2248 (m, 15H); HPLC Waters 2690 Alliance HPLC (Symmetry Shield RP18 3.5 μm, 2.1×50 mm; 5%-95% acetonitrile-0.1 M ammonium acetate over 15 min, 0.5 mL/min) Rf=11.813 min (97%).

후처리

  1. temperatureThe reaction mixture was cooled to room temperature
  2. filtrationThe precipitate was filtered
  3. washwas washed with water
  4. customThe crude solid was triturated with diethyl ether (30 mL)
  5. customThe resulting solid was dried over night on the lyophilizer

출처 및 근거

ORD 기록
ord-6eff051190ea409485b6584cf7683aa6
출처 데이터셋
uspto-grants-2003_12
특허 번호
US06660744B1

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