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-dialkoxymethyl- -formyl(or carbaloxy)- phenyl-propionitriles, their preparation and their use as intermediates in the preparation of trimethoprim and some
3. (3,5DIHALOGENOFENIL) -OXAZOLIDIN 2,4-DIONS (TIONS) IN SUEBSTITUEYE SPIRO TUEREVLER, THE PROCEDURES FOR THEIR PREPARATION AND THEIR FUNGGSIDES OF THESE