Abstract: The invention relates to a process for obtaining N-(4-trifluoromethylphenyl)-5-methyl-isoxazole-4-carboxamide in crystalline form, which is essentially free of byproducts. For this purpose, N-(4-trifluoromethylphenyl)-5-methylisoxazole-4-carboxamide is transferred into an organic solvent or into mixtures of organic solvents and water, the amount of byproduct in the solution is determined by quantitative analysis and an equimolar amount of a base is added. N-(4-Trifluoromethylphenyl)-5-methyl-isoxazole-4-carboxamide is isolated from the resulting solution by crystallization.

Abstract: 3-Demethylmevalonic acid derivatives of the formula I (.delta.-lactone) and Ia (corresponding dihydroxycarboxylic acid derivative) ##STR1## in which A-B, Z, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 have the indicated meanings, a process for the preparation of these compounds, their use as medicaments and pharmaceutical products are described. In addition, new intermediates for the preparation of the compounds of the formula I and Ia are described.

Abstract: 3-Demethyl-4-fluoromevalonic acid derivatives, a process for the preparation thereof, pharmaceutical products based on these compounds, the use thereof, and intermediates3-Demethyl-4-fluoromevalonic acid derivatives of the formula I, and the corresponding dihydroxy carboxylic acid derivatives of the formula II ##STR1## in which R, X and Y have the stated meanings, processes for the preparation of these compounds, the use thereof as medicaments, and pharmaceutical products are described. In addition, new intermediates for the preparation of the compounds of the formula I and formula II are described.

Abstract: Compounds of the formula I ##STR1## in which R.sup.1, R.sup.2 and Y have the indicated meanings, their physiologically tolerated acid addition salts, and a process for the preparation of these compounds are described. The compounds inhibit thromboxane synthetase and can thus be used as medicaments.

Abstract: The present invention relates to new pyridines substituted in the 3-position, of the formula ##STR1## and to a process for their preparation. The compounds bring about specific inhibition of thromboxane synthetase and can thus be used as medicaments.

Abstract: Compounds of the formula I ##STR1## in which R.sup.1, R.sup.2, R.sup.3 and Y have the indicated meanings, their physiologically tolerated acid addition salts, and a process for the preparation of these compounds, are described. The compounds inhibit thromboxane synthetase and can thus be used as medicaments.

Abstract: The present invention relates to new ortho-, meta- and para-substituted imidazolylmethylstyrenes of the formula I ##STR1## and to a process for their preparation. The compounds according to the invention are distinguished by having a specific inhibitory effect on the synthesis of thromboxane, and hence they can be used as medicaments.

Abstract: The present invention relates to 5-substituted .DELTA.2-imidazolinyl-thioethers and to intermediates and processes for their preparation. The components according to the invention are distinguished in particular by their platelet aggregation-inhibiting and hypotensive action.

Abstract: The present invention relates to 4-substituted .DELTA.2-imidazolinyl-thioethers and to intermediates and processes for their preparation. The components according to the invention are distinguished in particular by their platelet aggregation-inhibiting and hypotensive action.