申请人:MERCK PATENT GMBH
公开号:WO2013135360A1
公开(公告)日:2013-09-19
The present invention is directed to a new class of lipids, more specifically ether-lipids having a polar headgroup, as well as vesicles comprising these lipids, methods of their preparation as well as their uses in medical applications, wherein the ether-lipids are represented by general formula (I) wherein Y represents O, N, S or a covalent bond; P1 represents H, an Y- protecting group or an Y-activating group or a spacer group; P2, P3 represent independently of each other H, an amino-protecting group or a spacer group, or P2 and P3 form together with the N to which they are bound a ring structure; L is a group of formula (a) wherein the dashed line represents the linkage to N; R1 represents H or a group of formula -(CH2)2-ORb1; R1 represents H or a group of formula - (CH2)2-ORb2, R2 represents H or a group of formula -CH2-ORc; R2 Represents H or a group of formula -ORd or -CH2-ORc,' R2 represents H or a group of formula -(CH2)2-ORe or -(CH2)3-ORe; Ra, Rb1, Rb2, Rc, Rd,Re represent independently of each other a saturated or unsaturated, straight or branched hydrocarbon chain, and m is 1, 2 or 3; with the proviso that at least one of R1, R1', R2, R2', R3 is not H.
本发明涉及一种新型脂类,更具体地说是具有极性头基团的醚脂类,以及包含这些脂类的囊泡、它们的制备方法以及它们在医学应用中的用途,其中醚脂类由通式(I)表示,其中Y代表O、N、S或共价键;P1表示H、一个Y-保护基或Y-活化基或空间基;P2、P3独立地表示H、氨基保护基或空间基,或者P2和P3与它们所结合的N一起形成一个环状结构;L是一个式子(a)的基团,其中虚线表示与N的连接;R1表示H或一个式子-(CH2)2-ORb1的基团;R1表示H或一个式子-(CH2)2-ORb2的基团,R2表示H或一个式子-CH2-ORc的基团;R2表示H或一个式子-ORd或-CH2-ORc的基团,R2表示H或一个式子-(CH2)2-ORe或-(CH2)3-ORe的基团;Ra、Rb1、Rb2、Rc、Rd、Re独立地表示饱和或不饱和的直链或支链烃链,m为1、2或3;但至少有一个R1、R1'、R2、R2'、R3不是H。