2-Isopropoxy-5-methylsulfonylbenzoic acid → 2-[4-(2-Isopropoxy-5-methanesulfonyl-benzoyl)-piperazin-1-yl]-thiazole-5-carbonitrile
Reaction equation
[CH:1]([O:4][C:5]1[CH:13]=[CH:12][C:11]([S:14]([CH3:17])(=[O:16])=[O:15])=[CH:10][C:6]=1[C:7]([OH:9])=O)([CH3:3])[CH3:2].[N:18]1([C:24]2[S:25][C:26]([C:29]#[N:30])=[CH:27][N:28]=2)[CH2:23][CH2:22][NH:21][CH2:20][CH2:19]1>>[CH:1]([O:4][C:5]1[CH:13]=[CH:12][C:11]([S:14]([CH3:17])(=[O:16])=[O:15])=[CH:10][C:6]=1[C:7]([N:21]1[CH2:22][CH2:23][N:18]([C:24]2[S:25][C:26]([C:29]#[N:30])=[CH:27][N:28]=2)[CH2:19][CH2:20]1)=[O:9])([CH3:2])[CH3:3]Participants
3
Procedure
Prepared in analogy to example 1 (b) from 2-isopropoxy-5-methanesulfonyl-benzoic acid (Example A1) and 2-piperazin-1-yl-thiazole-5-carbonitrile. The crude material was purified by chromatography (SiO2, ethyl acetate/heptane) followed by trituration in ether to yield the title compound as a white crystalline solid (yield 69%). MS (m/e): 435.4 (M+H+, 100%).
Workup
- customThe crude material was purified by chromatography (SiO2, ethyl acetate/heptane)
Sources & evidence
- ORD record
- ord-e9e9d4ffd4fd421ebcd49f2783e4978b
- Source dataset
- uspto-grants-2007_05
- Patent number
- US07220744B2
Reaction notes
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