申请人:KIRIN BEER KABUSHIKI KAISHA
公开号:EP0666268A1
公开(公告)日:1995-08-09
A shingoglycolipid represented by general formula (I), which is efficiacious even when administered in a small amount, is reduced in side effects, and has antitumor and immunopotentiating activities, wherein X and Y represent respectively integers of 10 to 24 and 9 to 13; R₁ represents hexosyl, pentosyl, deoxyhexosyl, aminohexosyl, N-acetyl aminohexosyl, a halogenated derivative of any of them, or a sialic acid residue; R₂ represents H or OR₂', wherein R₂' represents H, galactosyl or glucosyl; R₃ represents H or OR₃', wherein R₃' represents H, galactosyl or glucosyl; R₄ represents galactosyl or H; R₅ represents methyl or isopropyl; and R₆ and R₇ represent each independently H or alternatively they are combined together to represent a double bond between the carbon atoms to which they are respectively bonded; provided that the case where R₁ represents α-galactosyl and R₄ represents H is excepted.
一种由通式(I)代表的 shingoglycolipid,即使少量给药也有效,副作用小,并具有抗肿瘤和免疫增强活性,其中 X 和 Y 分别代表 10 至 24 和 9 至 13 的整数;R₁ 代表己糖基、戊糖基、脱氧己糖基、氨基己糖基、N-乙酰氨基己糖基、其中任何一种的卤代衍生物或硅铝酸残基; R₂ 代表 H 或 OR₂',其中 R₂' 代表 H、半乳糖基或葡萄糖基;R₃ 代表 H 或 OR₃',其中 R₃' 代表 H、半乳糖基或葡萄糖基; R₄ 代表半乳糖基或 H; R₅ 代表甲基或异丙基;以及 R₆ 和 R₇ 各自独立地代表 H,或者它们组合在一起代表它们分别键合的碳原子之间的双键;但 R₁ 代表 α-半乳糖基而 R₄ 代表 H 的情况除外。