Potassium Phosphate, Tribasic → 5-(11-fluoro-5,6-dihydropyridazino[4',3':3,4]pyrido[1,2-a]indol-2-yl)-2-(4-fluorophenyl)-N-methyl-6-(N-methylmethylsulfonamido)benzofuran-3-carboxamide

HRID 595712Notes

Reaction equation

HRID 595712 reaction equation
Cl[C:2]1[N:19]=[N:18][C:5]2[CH2:6][CH2:7][N:8]3[C:16]4[CH:15]=[CH:14][CH:13]=[C:12]([F:17])[C:11]=4[CH:10]=[C:9]3[C:4]=2[CH:3]=1.[F:20][C:21]1[CH:26]=[CH:25][C:24]([C:27]2[O:28][C:29]3[CH:39]=[C:38]([N:40]([CH3:45])[S:41]([CH3:44])(=[O:43])=[O:42])[C:37](B(O)O)=[CH:36][C:30]=3[C:31]=2[C:32](=[O:35])[NH:33][CH3:34])=[CH:23][CH:22]=1.[O-]P([O-])([O-])=O.[K+].[K+].[K+]>CN(C=O)C>[F:17][C:12]1[C:11]2[CH:10]=[C:9]3[C:4]4[CH:3]=[C:2]([C:37]5[C:38]([N:40]([CH3:45])[S:41]([CH3:44])(=[O:43])=[O:42])=[CH:39][C:29]6[O:28][C:27]([C:24]7[CH:25]=[CH:26][C:21]([F:20])=[CH:22][CH:23]=7)=[C:31]([C:32]([NH:33][CH3:34])=[O:35])[C:30]=6[CH:36]=5)[N:19]=[N:18][C:5]=4[CH2:6][CH2:7][N:8]3[C:16]=2[CH:15]=[CH:14][CH:13]=1

Participants

5

Reactant 3

HCID 62657Potassium Phosphate, TribasicHCID 90332474(2-(4-fluorophenyl)-3-(methylcarbamoyl)-6-(N-methylmethylsulfonamido)benzofuran-5-yl)boronic acidHCID 903335802-Chloro-11-fluoro-5,6-dihydropyridazino[4',3':3,4]pyrido[1,2-a]indole

Product 1

HCID 903410165-(11-fluoro-5,6-dihydropyridazino[4',3':3,4]pyrido[1,2-a]indol-2-yl)-2-(4-fluorophenyl)-N-methyl-6-(N-methylmethylsulfonamido)benzofuran-3-carboxamideYield 13.2%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
100 °C

Procedure

To a degassed solution of 2-chloro-11-fluoro-5,6-dihydropyridazino[4′,3′:3,4]pyrido[1,2-a]indole (100 mg, 0.37 mmol), (2-(4-fluorophenyl)-3-(methylcarbamoyl)-6-(N-methylmethylsulfonamido)benzofuran-5-yl)boronic acid (169 mg, 0.4 mmol) and K3PO4 (155 mg, 0.73 mmol) in DMF (3 mL) was added Pd(dtbpf)Cl2 (5 mg) under N2. Then the mixture was stirred at 100° C. for 3 hours. The reaction mixture was cooled to RT and filtered. The filtrate was washed with H2O and dried over Na2SO4. After being concentrated, the residue was purified by prep-HPLC to give the product of 5-(11-fluoro-5,6-dihydropyridazino[4′,3′:3,4]pyrido[1,2-a]indol-2-yl)-2-(4-fluorophenyl)-N-methyl-6-(N-methylmethylsulfonamido)benzofuran-3-carboxamide (30 mg, yield: 13%). 1H-NMR (CDCl3, 400 MHz) δ 8.11 (d, J=9.0 Hz, 2H), 8.00 (dd, J=5.6, 8.8 Hz, 2H), 7.66 (s, 1H), 7.25 (s, 1H), 7.15˜7.23 (m, 4H), 6.81 (dd, J=7.6, 9.6 Hz, 1H), 6.17 (d, J=4.0 Hz, 1H), 4.47 (t, J=6.4 Hz, 2H), 3.67 (t, J=6.4 Hz, 2H), 3.21 (s, 3H), 3.00 (d, J=4.8 Hz, 3H), 2.97 (s, 3H). MS (M+H)+: 614.

Workup

  1. temperatureThe reaction mixture was cooled to RT
  2. filtrationfiltered
  3. washThe filtrate was washed with H2O
  4. dry with materialdried over Na2SO4
  5. concentrationAfter being concentrated
  6. customthe residue was purified by prep-HPLC

Sources & evidence

ORD record
ord-9c882cbd7e7849cdbe15e902909de49e
Source dataset
uspto-grants-2016_01
Patent number
US09243002B2

Reaction notes

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