1,2-Dimethoxyethane → 6-{Difluoro-[6-(1-methyl-1H-pyrazol-4-yl)-imidazo[1,2-b]pyridazin-3-yl]-methyl}-quinoline

HRID 69161Notes

Reaction equation

Cl[C:2]1[CH:3]=[CH:4][C:5]2[N:6]([C:8]([C:11]([F:23])([F:22])[C:12]3[CH:13]=[C:14]4[C:19](=[CH:20][CH:21]=3)[N:18]=[CH:17][CH:16]=[CH:15]4)=[CH:9][N:10]=2)[N:7]=1.[CH3:24][N:25]1[CH:29]=[C:28](B2OC(C)(C)C(C)(C)O2)[CH:27]=[N:26]1.C([O-])([O-])=O.[Na+].[Na+].COCCOC>CCOC(C)=O>[F:22][C:11]([F:23])([C:8]1[N:6]2[N:7]=[C:2]([C:28]3[CH:27]=[N:26][N:25]([CH3:24])[CH:29]=3)[CH:3]=[CH:4][C:5]2=[N:10][CH:9]=1)[C:12]1[CH:13]=[C:14]2[C:19](=[CH:20][CH:21]=1)[N:18]=[CH:17][CH:16]=[CH:15]2

Participants

Conditions

Temperature: 150 °C

Procedure

A microwave tube was charged with 6-[(6-chloro-imidazo[1,2-b]pyridazin-3-yl)-difluoro-methyl]-quinoline (Stage 6.1, 10 mg, 0.03 mmol), 1-methyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1H-pyrazole (10 mg, 0.045 mmol), tetrakis-(triphenylphosphine)palladium (1.7 mg), 2M Na2CO3 (0.054 mL) and DME (1 mL). It was heated at 150° C. under microwave irradiation for 20 min. The RM was taken up with EtOAc (2 mL) and washed with 10% Na2CO3 and brine. The organic layer was dried over Na2SO4, filtered and concentrated in vacuo. The residue was purified by HPLC to afford the title compound as a brown solid (tR 1.379 min (conditions 1), MH+=376.8, 1H-NMR in DMSO-d6: 9.00 (m, 1H); 8.65 (d, 1H); 8.52 (s, 1H); 8.30 (s, 1H); 8.21 (d, 1H); 8.14 (d, 1H); 7.99 (m, 2H); 7.87 (s, 1H); 7.66 (m, 2H); 3.86 (s, 3H)).

Workup

washwashed with 10% Na2CO3 and brine
dry with materialThe organic layer was dried over Na2SO4
filtrationfiltered
concentrationconcentrated in vacuo
customThe residue was purified by HPLC

Sources & evidence

ORD record: ord-e8f448f4da9341fa8164acd515203e95
Source dataset: uspto-grants-2014_09
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08822468B2

Reaction notes

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