申请人:Takeda Chemical Industries, Ltd.
公开号:US04139545A1
公开(公告)日:1979-02-13
Novel compounds of the formulae ##STR1## wherein R represents lower alkyl or lower alkoxy, A represents --CH.sub.2 --, --CO-- or ##STR2## n represents an integer of 1 to 8, X represents hydrogen or hydroxyl which may be protected and Y represents hydroxyl which may be protected, and their esters show an excellent action on the lysosomal membranes of cells, and exhibit excellent pharmacological activities such as physiologic host defense control activity, especially immuno-potentiating activity.
该公式的新化合物为 ##STR1## 其中 R 代表低碳烷基或低碳氧基,A 代表 --CH.sub.2 --,--CO-- 或 ##STR2## n 代表1到8的整数,X 代表氢或羟基,可以被保护,Y 代表羟基,可以被保护,它们的酯对细胞溶酶体膜具有优异作用,并表现出优异的药理活性,如生理宿主防御控制活性,特别是免疫增强活性。