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METHOD OF OBTAINING NOVEL TRIETHYLAMMONIUM SALT OF 1-CARBOBUTOXYMETHYL-5-((3-(3'-SULFOPROPYL)-5-PHENYL-2-BENZOXAZOLINYLIDENO)ETHYLIDENO)-3-PHENYL-2-THIOHYDRANTOINE
METHOD OF OBTAINING NOVEL TRIETHYLAMMONIUM SALT OF 1-CARBOBUTOXYMETHYL-5-((3-(3'-SULFOPROPYL)-5-PHENYL-2-BENZOXAZOLINYLIDENO)ETHYLIDENO)-3-PHENYL-2-THIOHYDRANTOINE