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Cesium carbonate → 4-amino-6-[[(1S)-1-(1-cyclopropyl-6-fluoro-7-phenyl-benzimidazol-2-yl)ethyl]amino]pyrimidine-5-carbonitrile

HRID 243489
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HRID 243489 반응식
[NH2:1][C:2]1[C:7]([C:8]#[N:9])=[C:6]([NH:10][C@H:11]([C:13]2[N:17]([CH:18]3[CH2:20][CH2:19]3)[C:16]3[C:21](Br)=[C:22]([F:25])[CH:23]=[CH:24][C:15]=3[N:14]=2)[CH3:12])[N:5]=[CH:4][N:3]=1.[C:27]1(B(O)O)[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=1.C(=O)([O-])[O-].[Cs+].[Cs+]>O1CCOCC1.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>[NH2:1][C:2]1[C:7]([C:8]#[N:9])=[C:6]([NH:10][C@H:11]([C:13]2[N:17]([CH:18]3[CH2:20][CH2:19]3)[C:16]3[C:21]([C:27]4[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=4)=[C:22]([F:25])[CH:23]=[CH:24][C:15]=3[N:14]=2)[CH3:12])[N:5]=[CH:4][N:3]=1
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참가 물질

7

반응물 3

HCID 10796Cesium carbonateHCID 66827Phenylboronic AcidHCID 681578024-amino-6-[(S)-1-(7-bromo-1-cyclopropyl-6-fluoro-1H-benzoimidazol-2-yl)ethylamino]pyrimidine-5-carbonitrile

생성물 1

HCID 681571584-amino-6-[[(1S)-1-(1-cyclopropyl-6-fluoro-7-phenyl-benzimidazol-2-yl)ethyl]amino]pyrimidine-5-carbonitrile수율 15.1%

시약·촉매·용매 3

HCID 178418397
HCID 178418397, 화합물
촉매
HCID 962Water용매
HCID 312751,4-Dioxane용매

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온도
140 °C

실험 절차

A mixture of 4-amino-6-[(S)-1-(7-bromo-1-cyclopropyl-6-fluoro-1H-benzoimidazol-2-yl)ethylamino]pyrimidine-5-carbonitrile (68 mg, 0.16 mmol), phenylboronic acid (26 mg, 0.21 mmol), tetrakis(triphenylphosphine)palladium (19 mg, 10 mol %) and caesium carbonate (106 mg, 0.33 mol) in dioxane (3 mL) and H2O (1.5 mL) was purged with argon gas then heated at 140° C., for 30 min, by microwave irradiation. After cooling to RT, the reaction mixture was diluted with MeOH and loaded into an Isolute® SCX-2 cartridge. The cartridge was washed with MeOH followed by 2M NH3/MeOH. The basic fractions were combined, concentrated in vacuo and the resulting residue purified by column chromatography (Si—PCC, gradient 0-100% EtOAc in DCM) followed by recrystallisation from EtOAc/cyclohexane to afford 415 as a white solid (10 mg, 15%). LCMS (Method K): RT 4.08 min [M+H]+ 414.08. 1H NMR (CDCl3 400 MHz): δ 8.17 (1H, s), 7.65 (1H, dd, J=8.89, 4.63 Hz), 7.43-7.42 (5H, m), 7.09 (1H, dd, J=10.20, 8.76 Hz), 6.35 (1H, d, J=7.83 Hz), 5.96 (1H, m), 5.32 (2H, s), 2.89-2.83 (1H, m), 1.69 (3H, d, J=6.74 Hz), 0.79 (1H, m), 0.61 (1H, m), 0.47 (1H, m), 0.23 (1H, m)

후처리

  1. customwas purged with argon gas
  2. temperatureAfter cooling to RT
  3. additionthe reaction mixture was diluted with MeOH
  4. washThe cartridge was washed with MeOH
  5. concentrationconcentrated in vacuo
  6. customthe resulting residue purified by column chromatography (Si—PCC, gradient 0-100% EtOAc in DCM)
  7. customfollowed by recrystallisation from EtOAc/cyclohexane

출처 및 근거

ORD 기록
ord-57fbcf0176a44f968a4cd27aeff611fa
출처 데이터셋
uspto-grants-2014_02
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08653089B2

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