申请人:DRUG DELIVERY SYSTEM INSTITUTE, LTD.
公开号:EP0489162A1
公开(公告)日:1992-06-10
A derivative of a glycolipid containing a sialic acid of general formula (I), a process for the production thereof, and a particulate carrier containing the derivative as the constituent. In formula (I), the symbol represents either an α or β linkage; R¹ represents hydrogen or acetyl; R² represents hydrogen, C₁ to C₄ lower alkyl or alkali metal ion; X represents oxygen, sulfur, or a residue represented by the following formula (II) or (III): -O(CH₂)mNHCO- (II), wherein m is an integer of 1 to 10, -O(CH₂)mCONH- (III) and Y represents a group of formula (IV); wherein A represents a C₁₀ to C₄₀ linear or branched acylamino or the like, B represents hydrogen, carboxyl or a group of formula (V), and n and n' are each an integer of 0 to 3.
一种含有通式(I)硅烷基酸的糖脂衍生物、其生产工艺以及一种以该衍生物为成分的微粒载体。在式(I)中,符号代表α或β连接;R¹代表氢或乙酰基;R²代表氢、C₁至C₄低级烷基或碱金属离子;X代表氧、硫或由下式(II)或(III)代表的残基:-O(CH₂)mNHCO-(II),其中 m 为 1-10 的整数,-O(CH₂)mCONH-(III) 和 Y 代表式(IV)的基团;其中 A 代表 C₁₀ 至 C₄₀ 直链或支链酰氨基或类似物,B 代表氢、羧基或式 (V) 基团,n 和 n' 各为 0 至 3 的整数。