[CH3:1][C:2]1[O:6][C:5]([C:7]2[CH:8]=[CH:9][C:10]3[O:14][CH:13]=[C:12]([C:15]([O:17]CC)=[O:16])[C:11]=3[CH:20]=2)=[N:4][N:3]=1>C(O)C>[CH3:1][C:2]1[O:6][C:5]([C:7]2[CH:8]=[CH:9][C:10]3[O:14][CH:13]=[C:12]([C:15]([OH:17])=[O:16])[C:11]=3[CH:20]=2)=[N:4][N:3]=1In the same manner as in Example 134 and using ethyl 5-(5-methyl-1,3,4-oxadiazol-2-yl)-1-benzofuran-3-carboxylate instead of methyl 4-[5-(5-methyl-1,3,4-oxadiazol-2-yl)-1-benzofuran-3-yl]benzoate and ethanol instead of methanol, the title compound (yield 32%) was obtained as pale-yellow crystals.
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