申请人:Takeda Chemical Industries, Ltd.
公开号:US04369178A1
公开(公告)日:1983-01-18
Novel glucosamine-peptide derivatives of the formula: ##STR1## wherein m is 0 or 1; n is 0 or an integer of 1 to 9; R is lower alkyl which may be substituted with hydroxyl, or aryl; R.sup.1 is hydrogen or acyl having an acyclic hydrocarbon group, the terminal of which may be substituted with a cyclic hydrocarbon group directly, via a carbonyl group or via an oxygen atom; provided that when R.sup.1 is hydrogen m is 1; R.sup.2 is hydrogen or lower alkyl which may form a ring by connecting its terminal with the .alpha.-nitrogen atom when n is 0, or hydrogen when n is an integer of 1 to 9; R.sup.3 is hydrogen or lower alkyl; R.sup.4 and R.sup.5 are each hydrogen or lower alkyl which may be substituted with hydroxyl or benzyloxyl; R.sup.6 is hydrogen or lower alkyl; R.sup.7 is alkyl which may be substituted with lower alkoxyl or aralkyl; R.sup.8 and R.sup.9 are each hydrogen, lower alkyl or aralkyl; and (D) and (L) each indicate configurations if their respective carbon atoms are asymmetric; or an acid addition salt thereof, have immunostimulatory activity.
新型葡萄糖胺-肽衍生物的化学式如下:##STR1## 其中m为0或1;n为0或1至9的整数;R为可以用羟基取代的低碳烷基,或芳基;R.sup.1为氢或酰基,具有一个线性碳氢基团,其末端可以直接或通过羰基或氧原子与一个环烃基团相连;当R.sup.1为氢时,m为1;R.sup.2为氢或可以通过将其末端与α-氮原子连接而形成环的低碳烷基,或当n为1至9的整数时为氢;R.sup.3为氢或低碳烷基;R.sup.4和R.sup.5分别为氢或可以用羟基或苄氧基取代的低碳烷基;R.sup.6为氢或低碳烷基;R.sup.7为可以用低碳烷氧基或芳基取代的烷基;R.sup.8和R.sup.9分别为氢、低碳烷基或芳基;(D)和(L)分别表示它们各自的碳原子具有对映异构体;或其酸盐加合物具有免疫刺激活性。