3,4 - Dihydropyridines - 4 - hydroxy - 5 - (3 - hydroxy - 2 - pyridinyl) - 4 - methyl - 2h - pyrrole - 2 - carboxamide and its stereoisomers, processes for their preparation, as well as the use of these compounds in the case of the combating gram-positive and gram-negative - negative bacteria, yeasts, fungi, acholeplasmas and trichomonas vaginalis

摘要

Cultivation of a strain of the microorganism Nocardia sp. 11,340, which has been deposited in the American Type Culture Collection as A.T.C.C. No. 31531, yields a novel antibiotic substance EM 4940, having activity against a range of gram-positive and gram-negative bacteria, yeasts, fungi, acholeplasma, and the protozoan Trichomanas vaginalis.