2-Chloro-3-(trifluoromethyl)benzoic acid → 5-{[2-Chloro-3-(trifluoromethyl)phenyl]carbonyl}-1-phenyl-4,5-dihydro-1H-imidazo[4,5-c]pyridine
Reaction equation
[C:1]1([N:7]2[C:15]3[CH:14]=[CH:13][NH:12][CH2:11][C:10]=3[N:9]=[CH:8]2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[Cl:16][C:17]1[C:25]([C:26]([F:29])([F:28])[F:27])=[CH:24][CH:23]=[CH:22][C:18]=1[C:19](O)=[O:20].CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F>C(Cl)Cl>[Cl:16][C:17]1[C:25]([C:26]([F:28])([F:29])[F:27])=[CH:24][CH:23]=[CH:22][C:18]=1[C:19]([N:12]1[CH:13]=[CH:14][C:15]2[N:7]([C:1]3[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=3)[CH:8]=[N:9][C:10]=2[CH2:11]1)=[O:20]Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
To a solution of the product of Example 49, Step A (5.5 mg, 0.028 mmol) in DCM (3 mL) was added TEA (11 μL, 0.084 mmol), 2-chloro-3-(trifluoromethyl)benzoic acid (7 mg, 0.031 mmol) and HATU (13 mg, 0.033 mmol). The reaction was stirred at room temperature overnight. The crude reaction mixture was concentrated and purified on 4 g SiO2 column with 0-3% NH3/MeOH CH2Cl2 to give the desired compound (9.9 mg, 87%). MS (ESI): mass calcd. for C20H13ClF3N3O, 403.1. m/z found, 404.3 [M+H]+. 1H NMR (400 MHz, CDCl3) δ 9.06 (s, 1H), 8.09 (m 1H), 7.94-7.84 (m, 1H), 7.76-7.53 (m, 2H), 7.53-7.39 (m, 2H), 7.39-7.22 (m, 4H), 6.96-6.86 (m, 1H), 6.73 (s, 1H), 5.95 (q, J=7.0 Hz, 1H), 5.54 (s, 1H), 3.22 (q, J=7.3 Hz, 2H), 1.37 (t, J=7.3 Hz, 3H).
Workup
- customThe crude reaction mixture
- concentrationwas concentrated
- custompurified on 4 g SiO2 column with 0-3% NH3/MeOH CH2Cl2
Sources & evidence
- ORD record
- ord-c079a524ea4f4fe186b85d4b03f39606
- Source dataset
- uspto-grants-2015_06
- Patent number
- US09066946B2
Reaction notes
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