Oxalyl chloride → 5-[4-(4-Methyl-3-thienyl)-3-(trifluoromethyl)phenyl]-3-[2-(trifluoromethoxy)phenyl]-1,2,4-oxadiazole

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C(Cl)(=O)C(Cl)=O.[CH3:7][C:8]1[C:9]([C:13]2[CH:21]=[CH:20][C:16]([C:17]([OH:19])=O)=[CH:15][C:14]=2[C:22]([F:25])([F:24])[F:23])=[CH:10][S:11][CH:12]=1.O[N:27]=[C:28]([C:30]1[CH:35]=[CH:34][CH:33]=[CH:32][C:31]=1[O:36][C:37]([F:40])([F:39])[F:38])[NH2:29].CCN(C(C)C)C(C)C>>[CH3:7][C:8]1[C:9]([C:13]2[CH:21]=[CH:20][C:16]([C:17]3[O:19][N:29]=[C:28]([C:30]4[CH:35]=[CH:34][CH:33]=[CH:32][C:31]=4[O:36][C:37]([F:38])([F:39])[F:40])[N:27]=3)=[CH:15][C:14]=2[C:22]([F:25])([F:24])[F:23])=[CH:10][S:11][CH:12]=1