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Potassium Acetate → 6-oxo-1-(2-trimethylsilanylethoxymethyl)-5-[1-(2-trimethylsilanyl-ethoxymethyl)-1H-benzimidazol-2-yl]-1,6-dihydropyridazine-3-boronic acid

HRID 12286
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HRID 12286 반응식
Cl[C:2]1[CH:3]=[C:4]([C:17]2[N:21]([CH2:22][O:23][CH2:24][CH2:25][Si:26]([CH3:29])([CH3:28])[CH3:27])[C:20]3[CH:30]=[CH:31][CH:32]=[CH:33][C:19]=3[N:18]=2)[C:5](=[O:16])[N:6]([CH2:8][O:9][CH2:10][CH2:11][Si:12]([CH3:15])([CH3:14])[CH3:13])[N:7]=1.[B:34]1(B2OC(C)(C)C(C)(C)O2)[O:38]C(C)(C)C(C)(C)[O:35]1.C([O-])(=O)C.[K+]>CS(C)=O>[O:16]=[C:5]1[N:6]([CH2:8][O:9][CH2:10][CH2:11][Si:12]([CH3:15])([CH3:14])[CH3:13])[N:7]=[C:2]([B:34]([OH:38])[OH:35])[CH:3]=[C:4]1[C:17]1[N:21]([CH2:22][O:23][CH2:24][CH2:25][Si:26]([CH3:29])([CH3:28])[CH3:27])[C:20]2[CH:30]=[CH:31][CH:32]=[CH:33][C:19]=2[N:18]=1
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참가 물질

5

반응물 3

HCID 517044Potassium AcetateHCID 2733548Bis(pinacolato)diboraneHCID 686802706-chloro-2-(2-trimethylsilanylethoxymethyl)-4-[1-(2-trimethylsilanyl-ethoxymethyl)-1H-benzimidazol-2-yl]-2H-pyridazin-3-one

생성물 1

HCID 686797026-oxo-1-(2-trimethylsilanylethoxymethyl)-5-[1-(2-trimethylsilanyl-ethoxymethyl)-1H-benzimidazol-2-yl]-1,6-dihydropyridazine-3-boronic acid

시약·촉매·용매 1

HCID 679
Dimethyl Sulfoxide
용매

반응 조건

온도
95 °C

실험 절차

4 g of 6-chloro-2-(2-trimethylsilanylethoxymethyl)-4-[1-(2-trimethylsilanylethoxy-methyl) -1H-benzimidazol-2-yl]-2H-pyridazin-3-one (example 46), 4.1 g of bis(pinacolato)diboron, 0.19 g of (1,1 ′-bis(diphenylphosphine)-ferrocene)palladium(II) chloride-dichloromethane complex and 2.3 g of potassium acetate are dissolved in 60 ml of DMSO. The solution is degassed with argon and heated at 95° C. for 2.5 hours. For workup, 600 ml of water are added, the mixture is extracted several times with dichloromethane and the organic phase is washed with saturated sodium chloride solution and dried using a phase separator cartridge. After the solvent has been distilled off, the crude product is purified by preparative RP-HPLC (0-100% acetonitrile in water (+0.01% trifluoroacetic acid)).

후처리

  1. customThe solution is degassed with argon
  2. additionFor workup, 600 ml of water are added
  3. extractionthe mixture is extracted several times with dichloromethane
  4. washthe organic phase is washed with saturated sodium chloride solution
  5. customdried
  6. distillationAfter the solvent has been distilled off
  7. customthe crude product is purified by preparative RP-HPLC (0-100% acetonitrile in water (+0.01% trifluoroacetic acid))

출처 및 근거

ORD 기록
ord-ae34da666d0c49ec9f96cd03cabe9afb
출처 데이터셋
uspto-grants-2010_06
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07727989B2

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