申请人:Merck & Co., Inc.
公开号:EP0014159A1
公开(公告)日:1980-08-06
2-Amino-2-deoxy-glycoses of the general structural formula:
wherein
R1 is hydrogen, alkyl (1-7C), substituted alkyl (1-7C), phenyl, substituted phenyl, benzyl, or substituted benzyl;
R2 is alkyl, substituted alkyl, phenyl, or substituted phenyl;
R3 is H or lower alkyl (1-10C) with the proviso that when the aminoglycose has the 2-amino-2-deoxy-D-glucose configuration, R3 cannot be H;
R4 and R5 are same or different and are H, aliphatic or aromatic acyl (2-21 C) or substituted acyl (2-21 C);
R6 is H, or R6-R7 together is -CH2-CH2-CH2-,
R7 is H, alkyl (1-7C), hydroxymethyl, mercaptomethyl, benzyl, or substituted benzyl;
R8 and Rg each is carboxyl, esterified carboxyl (1-7C), amidated carboxyl, or mono- or di-alkyl-(1-3C)-amidated carboxyl;
provided that when R3 is lower alkyl, the stereochemistry at asymmetric center I can be either D or L, but that when the caminoglycose has the 2-amino-2-deoxy-D-glucose configuration, the stereochemistry at I cannot be D;
when R7 is not H, the stereochemistry at asymmetric center II is either L or D; and
the stereochemistry at asymmetric center III is D.
These compounds possess immunostimulatory properties.
结构通式为 2-氨基-2-脱氧甘氨酸:
其中
R1 是氢、烷基(1-7C)、取代烷基(1-7C)、苯基、取代苯基、苄基或取代苄基;
R2 是烷基、取代的烷基、苯基或取代的苯基;
R3 是 H 或低级烷基(1-10C),但当氨基糖具有 2-氨基-2-脱氧-D-葡萄糖构型时,R3 不能是 H;
R4 和 R5 相同或不同,并且是 H、脂肪族或芳香族酰基(2-21C)或取代酰基(2-21C);
R6 是 H,或 R6-R7 合在一起是-CH2-CH2-CH2-、
R7 是 H、烷基(1-7C)、羟甲基、巯甲基、苄基或取代的苄基;
R8 和 Rg 分别是羧基、酯化羧基 (1-7C)、酰胺化羧基或单-或二-烷基-(1-3C)-酰胺化羧基;
条件是当 R3 是低级烷基时,不对称中心 I 的立体化学结构可以是 D 或 L,但当骆驼糖具有 2-氨基-2-脱氧-D-葡萄糖构型时,I 的立体化学结构不能是 D;
当 R7 不是 H 时,不对称中心 II 的立体化学结构为 L 或 D;以及
不对称中心 III 的立体化学结构为 D。
这些化合物具有免疫刺激特性。