申请人:MEITO SANGYO CO., LTD.
公开号:EP0285178A2
公开(公告)日:1988-10-05
Novel mannobiose derivative represented by the general formula [I]:
wherein groups of R₁ to R₅ each represents -OH, -OR₆, -NHR₆, (R₆ represents an acyl group) or a group represented by the following formula (a), (b), (c), (d) or (e), provided that one of R₁ to R₅ represents -OR₆ or -NHR₆, one of the other 4 groups of R₁ to R₅ represents one of the groups represented by the formulae (a) to (e), and the remaining 3 groups of R₁ to R₅ represent -OH:
wherein represents α or β bond are provided by the invention.
These compounds give liposomes a specific affinity for Kupffer cells of liver, and can be produced industrially.
通式[I]代表的新型甘露寡糖衍生物:
其中R₁至R₅的基团各自代表-OH、-OR₆、-NHR₆、(R₆代表酰基)或下式(a)、(b)、(c)、(d)或(e)所代表的基团、条件是 R₁ 至 R₅ 中的一个代表-OR₆ 或-NHR₆,R₁ 至 R₅ 的另外 4 个基团中的一个代表式 (a) 至 (e) 所代表的基团之一,R₁ 至 R₅ 的其余 3 个基团代表-OH:
其中代表 α 或 β 键的基团由本发明提供。
这些化合物使脂质体对肝脏的 Kupffer 细胞具有特异性亲和力,并且可以工业化生产。