4-{4-[5-(3-tert-Butyl-phenylcarbamoyl)-pyridin-2-yl]-piperazin-1-yl}-benzoic acid → 4-{4-[5-(4-Chloro-3-iodo-phenylcarbamoyl)-pyridin-2-yl]-piperazin-1-yl}-benzoic acid
Reaction equation
C([O:3][C:4](=[O:34])[C:5]1[CH:10]=[CH:9][C:8]([N:11]2[CH2:16][CH2:15][N:14]([C:17]3[CH:22]=[CH:21][C:20]([C:23](=[O:33])[NH:24][C:25]4[CH:30]=[CH:29][C:28]([Cl:31])=[C:27]([I:32])[CH:26]=4)=[CH:19][N:18]=3)[CH2:13][CH2:12]2)=[CH:7][CH:6]=1)C.C(C1C=C(NC(C2C=CC(N3CCN(C4C=CC(C(O)=O)=CC=4)CC3)=NC=2)=O)C=CC=1)(C)(C)C>>[Cl:31][C:28]1[CH:29]=[CH:30][C:25]([NH:24][C:23]([C:20]2[CH:21]=[CH:22][C:17]([N:14]3[CH2:13][CH2:12][N:11]([C:8]4[CH:9]=[CH:10][C:5]([C:4]([OH:34])=[O:3])=[CH:6][CH:7]=4)[CH2:16][CH2:15]3)=[N:18][CH:19]=2)=[O:33])=[CH:26][C:27]=1[I:32]Participants
3
Reactant 2
Product 1
Procedure
4-{4-[5-(4-Chloro-3-iodo-phenylcarbamoyl)-pyridin-2-yl]-piperazin-1-yl}-benzoic acid was prepared by the hydrolysis of 4-{4-[5-(4-chloro-3-iodo-phenylcarbamoyl)-pyridin-2-yl]-piperazin-1-yl}-benzoic acid ethyl ester with LiOH monohydrate in manner similar to the one described in the synthesis of 4-{4-[5-(3-tert-butyl-phenylcarbamoyl)-pyridin-2-yl]-piperazin-1-yl}-benzoic acid, above. The product was obtained after suspension in small volume of EtOAc and filtration. HRMS m/z calcd for C23H20N4O3ClI [M+H]+: 563.0342. Found: 563.0343.
Workup
- customThe product was obtained after suspension
- filtrationin small volume of EtOAc and filtration
Sources & evidence
- ORD record
- ord-c6f609ec2cb24824b620487b6cbe306b
- Source dataset
- uspto-grants-2012_12
- Patent number
- US08324385B2
Reaction notes
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