Potassium Carbonate → HCID 57917384, compound

HRID 69255Notes

Reaction equation

HRID 69255 reaction equation
Cl[C:2]1[CH:3]=[CH:4][C:5]2[N:6]([C:8]([CH2:11][C:12]3[CH:13]=[C:14]4[C:19](=[CH:20][C:21]=3[F:22])[N:18]=[CH:17][CH:16]=[CH:15]4)=[CH:9][N:10]=2)[N:7]=1.[CH3:23][O:24][CH2:25][CH2:26][O:27][CH2:28][CH2:29][N:30]1[CH:34]=[C:33](B2OC(C)(C)C(C)(C)O2)[CH:32]=[N:31]1.C([O-])([O-])=O.[K+].[K+]>COCCOC.CCOC(C)=O.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[F:22][C:21]1[CH:20]=[C:19]2[C:14]([CH:15]=[CH:16][CH:17]=[N:18]2)=[CH:13][C:12]=1[CH2:11][C:8]1[N:6]2[N:7]=[C:2]([C:33]3[CH:32]=[N:31][N:30]([CH2:29][CH2:28][O:27][CH2:26][CH2:25][O:24][CH3:23])[CH:34]=3)[CH:3]=[CH:4][C:5]2=[N:10][CH:9]=1

Participants

7

Reactant 3

HCID 11430Potassium CarbonateHCID 581475166-(6-Chloro-imidazo[1,2-b]pyridazin-3-ylmethyl)-7-fluoro-quinolineHCID 686319071H-Pyrazole, 1-[2-(2-methoxyethoxy)ethyl]-4(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-

Product 1

HCID 57917384HCID 57917384, compound

Reagents, catalysts & solvents 3

HCID 178418476HCID 178418476, compoundCatalystHCID 80711,2-DimethoxyethaneSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
95 °C

Procedure

A mixture of 6-(6-chloro-imidazo[1,2-b]pyridazin-3-ylmethyl)-7-fluoro-quinoline (Stage 173.1, 50 mg, 0.160 mmol), 1-[2-(2-methoxy-ethoxy)-ethyl]-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1H-pyrazole (Stage 233.1, 47 mg, 0.160 mmol), Pd(PPh3)2Cl2 (6 mg, 0.008 mmol) and 2 M K2CO3 (216 μL, 0.432 mmol) in DME (1 mL) was stirred at 95° C. for 1 h. The mixture was diluted with EtOAc and washed with NaHCO3 and brine. The organic layer was dried over Na2SO4, filtered and concentrated. The residue was purified twice by flash chromatography (CombiFlash® Companion System®, with a 4 g RediSep® silica gel column, DCM/(DCM/MeOH 19:1)=100:0→0:100) to afford the title compound as a foam (tR 3.56 min (conditions 3), MH+=447.1, 1H-NMR in DMSO-d6: 8.84 (m, 1H); 8.42 (s, 1H); 8.33 (d, 1H); 8.08 (m, 2H); 8.01 (d, 1H); 7.76 (d, 1H); 7.61 (s, 1H); 7.52 (d, 1H); 7.46 (dd, 1H); 4.55 (s, 2H); 4.31 (t, 2H); 3.79 (t, 2H); 3.50 (m, 2H); 3.36 (m, 2H); 3.15 (s, 3H)).

Workup

  1. washwashed with NaHCO3 and brine
  2. dry with materialThe organic layer was dried over Na2SO4
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customThe residue was purified twice by flash chromatography (CombiFlash® Companion System®

Sources & evidence

ORD record
ord-31d0b4c63277414593b253b02e682408
Source dataset
uspto-grants-2014_09
Patent number
US08822468B2

Reaction notes

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