1,4-Cyclohexadiene → N-(3-Fluoro-4-((7-hydroxy-6-methoxyquinolin-4-yl)oxy)phenyl)-N-(4-fluorophenyl)cyclopropane-1,1-dicarboxamide
Reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5]([NH:8][C:9]([C:11]2([C:14]([NH:16][C:17]3[CH:22]=[CH:21][C:20]([O:23][C:24]4[C:33]5[C:28](=[CH:29][C:30]([O:36]CC6C=CC=CC=6)=[C:31]([O:34][CH3:35])[CH:32]=5)[N:27]=[CH:26][CH:25]=4)=[C:19]([F:44])[CH:18]=3)=[O:15])[CH2:13][CH2:12]2)=[O:10])=[CH:4][CH:3]=1.C1CC=CCC=1>CCO.[Pd]>[F:1][C:2]1[CH:7]=[CH:6][C:5]([NH:8][C:9]([C:11]2([C:14]([NH:16][C:17]3[CH:22]=[CH:21][C:20]([O:23][C:24]4[C:33]5[C:28](=[CH:29][C:30]([OH:36])=[C:31]([O:34][CH3:35])[CH:32]=5)[N:27]=[CH:26][CH:25]=4)=[C:19]([F:44])[CH:18]=3)=[O:15])[CH2:12][CH2:13]2)=[O:10])=[CH:4][CH:3]=1Participants
Reactant 2
Product 1
Reagents, catalysts & solvents 2
Conditions
- Temperature
- 65 °C
Procedure
To a solution of the cyclopropane-1,1-dicarboxylic acid [4-(7-benzyloxy-6-methoxy-quinolin-4-yloxy)-3-fluoro-phenyl]-amide (4-fluoro-phenyl)-amide (22.4 g, 37.6 mmol) in EtOH (340 mL) was added 1,4-cyclohexadiene (35 mL, 376 mmol) and 10% Pd/C (2.08 g). The reaction mixture was then heated at 65° C. with stirring for 3 h (Caution: H2 gas is released from the reaction). It was then allowed to cool to room temperature, and filtered through celite followed by a MeOH wash. The solution was then concentrated under reduced pressure. The yellow residue was taken into EtOAc (1 L). The EtOAc solution was washed with water (1×), brine (2×), dried over MgSO4 and concentrated in vacuo. Cyclopropane-1,1-dicarboxylic acid [3-fluoro-4-(7-hydroxy-6-methoxy-quinolin-4-yloxy)-phenyl]-amide (4-fluoro-phenyl)-amide was obtained as a yellow solid (17.3 g, 91.1% yield), which were carried on to the next reaction without further purification. 1H NMR (400 MHz, DMSO, d6): 10.39 (s, 1H), 10.15 (s, 1H), 10.00 (s, 1H), 8.38 (d, 1H), 7.88 (dd, 1H), 7.63 (m, 2H), 7.50 (m, 2H), 7.40 (t, 1H), 7.27 (s, 1H), 7.14 (m, 2H), 6.33 (d, 1H), 3.95 (s, 3H), 1.47 (m, 4H). LC/MS Calcd for [M+H]+ 506.2, found 506.3. Anal. HPLC: 99.4% pure.
Workup
- customH2 gas is released from the reaction)
- temperatureto cool to room temperature
- filtrationfiltered through celite
- washwash
- concentrationThe solution was then concentrated under reduced pressure
- washThe EtOAc solution was washed with water (1×), brine (2×)
- dry with materialdried over MgSO4
- concentrationconcentrated in vacuo
Sources & evidence
- ORD record
- ord-e2619cae6c6a4656b7fe72157b73f0e1
- Source dataset
- uspto-grants-2012_05
- Patent number
- US08178532B2
Reaction notes
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