Novel sugar ureide and thioureide derivatives are provided by this invention, which exhibit certain antibacterial activity against a variety of gram-positive and gram-negative bacteria and useful in therapeutic treatment of bacterial infections. The compounds have the formula ##STR1## wherein R.sub.1 is a monovalent residue of aldose, aldonic acid and their 2-amino derivatives, R.sub.2 is an aralkyl, heterocyclic, sulfamoylaryl, R.sub.3 CONH or R.sub.4 NH-- where R.sub.3 is a heterocyclic and R.sub.4 is an aryl group and Y is oxygen or sulfur atom, which are prepared by reacting an isocyanate or isothiocyanate of the formula R.sub.1 NC=Y with an amino compound of the formula R.sub.2 NH.sub.2.
本发明提供了一种新型糖
脲和
硫脲衍
生物,对多种革兰氏阳性和阴性细菌表现出一定的抗菌活性,并在治疗细菌感染方面具有用途。这些化合物的分子式为##STR1##其中R.sub.1是醛糖、醛糖酸及其2-
氨基衍
生物的一价残基,R.sub.2是芳基烷基、杂环、
磺胺芳基、R.sub.3 CONH或R.sub.4 NH--其中R.sub.3是杂环,R.sub.4是芳基,Y是氧或
硫原子。这些衍
生物是通过将分子式为R.sub.1 NC=Y的
异氰酸酯或异
硫氰酸酯与分子式为R.sub.2 NH.sub.2的
氨基化合物反应制备的。