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Potassium Carbonate → Ethyl 3-{[5-(biphenyl-4-yl)-1-(biphenyl-4-ylmethyl)-4,6-difluoro-1H-benzimidazol-2-yl]oxy}cyclobutanecarboxylate

HRID 340795
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인쇄 미리보기

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HRID 340795 반응식
[C:1]1([C:30]2[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=2)[CH:6]=[CH:5][C:4]([CH2:7][N:8]2[C:12]3[CH:13]=[C:14]([F:19])[C:15](I)=[C:16]([F:17])[C:11]=3[N:10]=[C:9]2[O:20][CH:21]2[CH2:24][CH:23]([C:25]([O:27][CH2:28][CH3:29])=[O:26])[CH2:22]2)=[CH:3][CH:2]=1.B(O)(O)[C:37]1[CH:38]=[CH:39][C:40]([C:43]2[CH:44]=[CH:45][CH:46]=[CH:47][CH:48]=2)=[CH:41][CH:42]=1.C([O-])([O-])=O.[K+].[K+]>CN(C=O)C.CCOC(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:40]1([C:43]2[CH:48]=[CH:47][CH:46]=[CH:45][CH:44]=2)[CH:41]=[CH:42][C:37]([C:15]2[C:14]([F:19])=[CH:13][C:12]3[N:8]([CH2:7][C:4]4[CH:5]=[CH:6][C:1]([C:30]5[CH:31]=[CH:32][CH:33]=[CH:34][CH:35]=5)=[CH:2][CH:3]=4)[C:9]([O:20][CH:21]4[CH2:22][CH:23]([C:25]([O:27][CH2:28][CH3:29])=[O:26])[CH2:24]4)=[N:10][C:11]=3[C:16]=2[F:17])=[CH:38][CH:39]=1
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참가 물질

8

반응물 3

HCID 11430Potassium CarbonateHCID 1512531,1'-Biphenyl-4-yl-boronic acidHCID 67408998Ethyl 3-{[1-(biphenyl-4-ylmethyl)-4,6-difluoro-5-iodo-1H-benzimidazol-2-yl]oxy}cyclobutanecarboxylate

생성물 1

HCID 67407044Ethyl 3-{[5-(biphenyl-4-yl)-1-(biphenyl-4-ylmethyl)-4,6-difluoro-1H-benzimidazol-2-yl]oxy}cyclobutanecarboxylate

시약·촉매·용매 4

HCID 178418397
HCID 178418397, 화합물
촉매
HCID 962Water용매
HCID 6228Dimethylformamide용매
HCID 8857Ethyl Acetate용매

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온도
120 °C

실험 절차

A solution of ethyl 3-{[1-(biphenyl-4-ylmethyl)-4,6-difluoro-5-iodo-1H-benzimidazol-2-yl]oxy}cyclobutanecarboxylate (0.350 g, 0.595 mmol), biphenylboronic acid (0.130 g, 0.654 mmol), and Pd(PPh3)4 (0.027 g, 0.024 mmol) in 6 mL of DMF was treated with a 1 M solution of K2CO3 (1.20 mL). The resulting yellow solution was heated at 120° C. for 45 min, and then diluted with EtOAc and H2O. The layers were separated and the aqueous layer was extracted with EtOAc. The combined organic layers were washed with brine, dried over Na2SO4, filtered, and concentrated. Purification of the resulting residue by flash chromatography (0-15% then 15-20% then 20% EtOAc/hexanes) provided the desired product as a white solid. LCMS: calculated for C39H32F2N2O3 614.68, observed ink 615.1 (M+H)+ (Rt 2.79/4 min).

후처리

  1. customThe layers were separated
  2. extractionthe aqueous layer was extracted with EtOAc
  3. washThe combined organic layers were washed with brine
  4. dry with materialdried over Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customPurification of the resulting residue by flash chromatography (0-15%

출처 및 근거

ORD 기록
ord-facc36a78da949ab8a6c2d65b96159bf
출처 데이터셋
uspto-grants-2014_11
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08895596B2

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