反应详情

Obtained by a procedure analogous to that indicated in Example 1 (b), from 4-(4-chloro-3-dimethylsulfamoylphenyl)-3-methyl-2-(2,3-dimethylphenyl-imino)thiazolidin-4-ol hydrobromide, by boiling in glacial acetic acid for 2 hours and filtering off the crystals at room temperature. Colorless crystals from glacial acetic acid; melting point 256° C. (with decomposition).

1. customObtained by a procedure analogous to
2. filtrationfiltering off the crystals at room temperature