NOVEL PROCESS FOR THE PREPARATION OF 2,5-DICHLORO-3-(5-(3,4-DIHYDROXY-5-NITROPHENYL)-1,2,4-OXADIAZOL-3-YL)-4,6-DIMETHYLPYRIDINE-1-OXIDE
The present invention relates to a novel process for the preparation of 2,5-dichloro-3-(5-(3,4-dihydroxy-5-nitrophenyl)-1,2,4-oxadiazol-3-yl)-4,6-dimethylpyridine-1-oxide of formula (I)The present invention also relates to the novel intermediate compounds of formula (V), formula (VII), and their pro...
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Zusammenfassung: | The present invention relates to a novel process for the preparation of 2,5-dichloro-3-(5-(3,4-dihydroxy-5-nitrophenyl)-1,2,4-oxadiazol-3-yl)-4,6-dimethylpyridine-1-oxide of formula (I)The present invention also relates to the novel intermediate compounds of formula (V), formula (VII), and their processes for the preparation thereof.The present invention also relates to the use of compounds of formula (V), formula (VII) intermediate in the preparation of 2,5-dichloro-3-(5-(3,4-dihydroxy-5-nitrophenyl)-1, 2, 4-oxadiazol-3-yl)-4, 6-dimethylpyridine-1-oxide of formula (I). |
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