Potassium Acetate → 1-Methyl-5-(5-(oxetan-3-yl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazin-2-ylamino)-6-oxo-1,6-dihydropyridin-3-ylboronic acid

HRID 1411656노트

반응식

HRID 1411656 반응식
Br[C:2]1[CH:3]=[C:4]([NH:10][C:11]2[CH:23]=[C:14]3[CH2:15][N:16]([CH:19]4[CH2:22][O:21][CH2:20]4)[CH2:17][CH2:18][N:13]3[N:12]=2)[C:5](=[O:9])[N:6]([CH3:8])[CH:7]=1.CC1(C)C(C)(C)[O:28][B:27](B2OC(C)(C)C(C)(C)O2)[O:26]1.C([O-])(=O)C.[K+]>C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2].O1CCOCC1>[CH3:8][N:6]1[C:5](=[O:9])[C:4]([NH:10][C:11]2[CH:23]=[C:14]3[CH2:15][N:16]([CH:19]4[CH2:22][O:21][CH2:20]4)[CH2:17][CH2:18][N:13]3[N:12]=2)=[CH:3][C:2]([B:27]([OH:28])[OH:26])=[CH:7]1

참가 물질

6

반응물 3

HCID 517044Potassium AcetateHCID 2733548Bis(pinacolato)diboraneHCID 580441695-bromo-1-methyl-3-(5-(oxetan-3-yl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazin-2-ylamino)pyridin-2(1H)-one

생성물 1

HCID 580443071-Methyl-5-(5-(oxetan-3-yl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazin-2-ylamino)-6-oxo-1,6-dihydropyridin-3-ylboronic acid수율 33%

시약·촉매·용매 2

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)촉매HCID 312751,4-Dioxane용매

반응 조건

온도
100 °C

실험 절차

A 100-mL round bottomed flask equipped with a magnetic stirrer was charged with 5-bromo-1-methyl-3-(5-(oxetan-3-yl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazin-2-ylamino)pyridin-2(1H)-one 125i (1.0 g, 2.64 mmol), 4,4,4′,4′,5,5,5′,5′-octamethyl-2,2′-bi(1,3,2-dioxaborolane) (2.0 g, 7.92 mmol), PdCl2(dppf) (190 mg, 0.26 mmol), potassium acetate (776 mg, 7.92 mmol), and dioxane (40 mL). After bubbling argon into the mixture for 30 minutes, a reflux condenser was attached to the flask and mixture was stirred at 100° C. for 6 h under an argon atmosphere. The resulting mixture was filtered and the filtrate was evaporated under reduced pressure. The residue was purified by reverse-phase Combiflash eluting with 0.3% NH4HCO3 water/CH3CN to afford 163a as a white solid (300 mg, 33%). MS: [M+H]+ 346.

후처리

  1. customA 100-mL round bottomed flask equipped with a magnetic stirrer
  2. customAfter bubbling argon into the mixture for 30 minutes
  3. customa reflux condenser was attached to the flask and mixture
  4. filtrationThe resulting mixture was filtered
  5. customthe filtrate was evaporated under reduced pressure
  6. customThe residue was purified by reverse-phase Combiflash
  7. washeluting with 0.3% NH4HCO3 water/CH3CN

출처 및 근거

ORD 기록
ord-3fb8384cda354cf08df4cba41ad9e5a3
출처 데이터셋
uspto-grants-2014_12
특허 번호
US08921353B2

반응 노트

불러오는 중…