5-Amino-2-methylpyridine → N-tert-butyl-2-(6-methylpyridin-3-ylamino)-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxamide

HRID 522956

반응식

HRID 522956 반응식
Br[C:2]1[N:3]=[C:4]2[C:10]([C:11]([NH:13][C:14]([CH3:17])([CH3:16])[CH3:15])=[O:12])=[CH:9][N:8]([CH2:18][O:19][CH2:20][CH2:21][Si:22]([CH3:25])([CH3:24])[CH3:23])[C:5]2=[N:6][CH:7]=1.[CH3:26][C:27]1[N:32]=[CH:31][C:30]([NH2:33])=[CH:29][CH:28]=1.C1C=CC(P(C2C(C3C(P(C4C=CC=CC=4)C4C=CC=CC=4)=CC=C4C=3C=CC=C4)=C3C(C=CC=C3)=CC=2)C2C=CC=CC=2)=CC=1.CC(C)([O-])C.[Na+]>CN(C=O)C.C1(C)C=CC=CC=1.O.C([O-])(=O)C.[Pd+2].C([O-])(=O)C>[C:14]([NH:13][C:11]([C:10]1[C:4]2[C:5](=[N:6][CH:7]=[C:2]([NH:33][C:30]3[CH:31]=[N:32][C:27]([CH3:26])=[CH:28][CH:29]=3)[N:3]=2)[N:8]([CH2:18][O:19][CH2:20][CH2:21][Si:22]([CH3:25])([CH3:24])[CH3:23])[CH:9]=1)=[O:12])([CH3:17])([CH3:16])[CH3:15]

참가 물질

9

반응물 4

HCID 2433135-Amino-2-methylpyridineHCID 634876Binap, (A+-)-HCID 23676156Sodium t-butoxideHCID 715756452-bromo-N-(tert-butyl)-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxamide

생성물 1

HCID 131735549N-tert-butyl-2-(6-methylpyridin-3-ylamino)-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxamide수율 36%

시약·촉매·용매 4

HCID 167845palladium(II) acetate촉매HCID 962Water용매HCID 1140Toluene용매HCID 6228Dimethylformamide용매

반응 조건

온도
140 °C

실험 절차

A mixture of 2-bromo-N-tert-butyl-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxamide (150 mg, 351 mol), 6-methylpyridin-3-amine (56.9 mg, 526 mol), BINAP (10.9 mg, 17.5 mol), palladium (II) acetate (19.7 mg, 87.7 mol) and sodium tert-butoxide (84.3 mg, 877 mol) in DMF (1 mL) and toluene (500 μL) was heated in a microwave at 140° C. for 20 min. The reaction mixture was cooled then diluted with water and extracted into ethyl acetate (3×). The combined organic extracts were washed with brine then dried over magnesium sulfate. Purification by chromatography (silica, 30-70% ethyl acetate in hexanes) gave N-tert-butyl-2-(6-methylpyridin-3-ylamino)-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxamide (57 mg, 125 mol, 36%) as a brown solid. MS (EI/CI) m/z: 455.2 [M+H].

후처리

  1. temperatureThe reaction mixture was cooled
  2. extractionextracted into ethyl acetate (3×)
  3. washThe combined organic extracts were washed with brine
  4. dry with materialthen dried over magnesium sulfate
  5. customPurification by chromatography (silica, 30-70% ethyl acetate in hexanes)

출처 및 근거

ORD 기록
ord-b79af9931d0e4affbaa0e7f305aa8625
출처 데이터셋
uspto-grants-2016_05
특허 번호
US09334278B2

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