4-Chloro-3-(pyridin-2-yl)aniline → Tert-butyl 3-chloro-4-(4-chloro-3-(pyridin-2-yl)phenylcarbamoyl)benzylcarbamate
Reaction equation
[Cl:1][C:2]1[CH:8]=[CH:7][C:5]([NH2:6])=[CH:4][C:3]=1[C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][N:10]=1.[C:15]([O:19][C:20]([NH:22][CH2:23][C:24]1[CH:32]=[CH:31][C:27]([C:28](O)=[O:29])=[C:26]([Cl:33])[CH:25]=1)=[O:21])([CH3:18])([CH3:17])[CH3:16]>>[Cl:33][C:26]1[CH:25]=[C:24]([CH:32]=[CH:31][C:27]=1[C:28](=[O:29])[NH:6][C:5]1[CH:7]=[CH:8][C:2]([Cl:1])=[C:3]([C:9]2[CH:14]=[CH:13][CH:12]=[CH:11][N:10]=2)[CH:4]=1)[CH2:23][NH:22][C:20](=[O:21])[O:19][C:15]([CH3:18])([CH3:17])[CH3:16]Participants
Procedure
75 mg of 4-chloro-3-(pyridin-2-yl)aniline was coupled to 4-((tert-butoxycarbonylamino)methyl)-2-chlorobenzoic acid via Procedure G to yield tert-butyl 3-chloro-4-(4-chloro-3-(pyridin-2-yl)phenylcarbamoyl)benzylcarbamate. Tert-butyl 3-chloro-4-(4-chloro-3-(pyridin-2-yl)phenylcarbamoyl)benzylcarbamate was subsequently treated with 4N HCl in Dioxane to remove the Boc protecting group and form the HCl salt of 4-(aminomethyl)-2-chloro-N-(4-chloro-3-(pyridin-2-yl)phenyl)benzamide. 54 mg of the crude HCl salt of 4-(aminomethyl)-2-chloro-N-(4-chloro-3-(pyridin-2-yl)phenyl)benzamide was coupled to picolinic acid via Procedure G. The crude product was purified by reverse phase HPLC to yield N-(3-chloro-4-(4-chloro-3-(pyridin-2-yl)phenylcarbamoyl)benzyl)picolinamide. MS (Q1) 477.3 (M)+.
Sources & evidence
- ORD record
- ord-9c6eca1954a547539e12cf2839230167
- Source dataset
- uspto-grants-2016_04
- Patent number
- US09321761B2
Reaction notes
Loading…