申请人:Drug Delivery System Institute, Ltd.
公开号:US05243035A1
公开(公告)日:1993-09-07
Sialic acid- containing glycolipid derivatives represented by the following general formula, their production method, and the particulate carriers that contain as a constituent the sialic acid-containing glycolipid derivative(s). ##STR1## wherein represents the .alpha.- or the .beta.- linkage, R.sup.1, a hydrogen atom or an acetyl group, R.sup.2, a hydrogen atom, a lower alkyl group with 1-4 carbon atoms, an alkaline metal ion, or such, X, an oxygen or sulfur atom or a residue represented by the following formula (II) or (III), --O(CH.sub.2).sub.m NHCO-- (II) where m represents an integer from 1 to 10. --O(CH.sub.2).sub.m CONH-- (III) Y, the formula (IV). ##STR2## where A represents a linear or branched chain acylamino group with 10-40 carbon atoms, or such B, a hydrogen atom, a carboxyl group or such, or the formula (V), and ##STR3## n, an integer of 0 to 3.
含有唾液酸的糖脂衍生物由以下一般公式表示,它们的生产方法以及作为成分含有唾液酸糖脂衍生物的颗粒载体。其中表示α-或β-连接,R^1表示氢原子或乙酰基,R^2表示氢原子、带有1-4个碳原子的低碳烷基基团、碱性金属离子等,X表示氧或硫原子或以下式(II)或(III)所表示的残基,--O(CH2)mNHCO-- (II),其中m表示1到10之间的整数。--O(CH2)mCONH-- (III),Y表示式(IV)。其中A表示具有10-40个碳原子的线性或分支酰胺基团,或B表示氢原子、羧基或式(V),n为0到3的整数。