This invention relates to novel, 1,4-diaminocyclitol derivatives of antimicrobial and immunostimulating activity of the formula: ##STR1## wherein X.sup.1, X.sup.2 and X.sup.3 are each amino or protected amino, X.sup.4 is hydrogen or hydroxy, R.sup.1 is hydrogen or lower alkyl, and R.sup.2 is higher alkanoyl permissably substituted with hydroxy, amino, azido, epoxy, protected hydroxy or protected amino, or higher alkenoyl, or higher alkylcarbanoyl, and pharmaceutically acceptable salts thereof.
本发明涉及一种新型的1,4-二
氨基环己糖衍
生物,具有抗微
生物和免疫刺激活性,其
化学式为:##STR1##其中,X.sup.1、X.sup.2和X.sup.3分别为
氨基或受保护的
氨基,X.sup.4为氢或羟基,R.sup.1为氢或低碳基,R.sup.2为高碳酰基,可被取代为羟基、
氨基、偶氮、环氧、受保护的羟基或受保护的
氨基,或为高烯酰基、高烷基羧酰基,以及其药学上可接受的盐。