申请人:Merck & Co., Inc.
公开号:US04256735A1
公开(公告)日:1981-03-17
2-Amino-2-deoxy-glycoses of the general structural formula: ##STR1## wherein R.sub.1 is hydrogen, alkyl (1-7C), substituted alkyl (1-7C), phenyl, substituted phenyl, benzyl, or substituted benzyl; R.sub.2 is alkyl, substituted alkyl, phenyl, or substituted phenyl; R.sub.3 is H or lower alkyl (1-10C) with the proviso that when the aminoglycose has the 2-amino-2-deoxy-D-glucose configuration, R.sub.3 cannot be H; R.sub.4 and R.sub.5 are same or different and are H, aliphatic or aromatic acyl (2-21C) or substituted acyl (2-21C); R.sub.6 is H, or R.sub.6 -R.sub.7 together is --CH.sub.2 --CH.sub.2 --CH.sub.2 --, R.sub.7 is H, alkyl (1-7C), hydroxymethyl, mercaptomethyl, benzyl, or substituted benzyl; R.sub.8 and R.sub.9 each is carboxyl, esterified carboxyl (1-7C), amidated carboxyl, or mono- or di-alkyl-(1-3C)-amidated carboxyl; Provided that when R.sub.3 is lower alkyl, the stereochemistry at asymmetric center I can be either D or L, but that when the aminoglycose has the 2-amino-2-deoxy-D-glucose configuration, the stereochemistry at I cannot be D; When R.sub.7 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.
一般结构式为:##STR1##的2-氨基-2-脱氧-醣类化合物,其中R.sub.1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;R.sub.2是烷基、取代烷基、苯基或取代苯基;R.sub.3是H或较低烷基(1-10C),但当氨基葡萄糖具有2-氨基-2-脱氧-D-葡萄糖构型时,R.sub.3不能为H;R.sub.4和R.sub.5相同或不同,是H、脂肪或芳香族酰基(2-21C)或取代酰基(2-21C);R.sub.6是H,或R.sub.6-R.sub.7一起是--CH.sub.2--CH.sub.2--CH.sub.2--,R.sub.7是H、烷基(1-7C)、羟甲基、巯基甲基、苄基或取代苄基;R.sub.8和R.sub.9各自是羧基、酯化羧基(1-7C)、酰胺化羧基或单烷基或双烷基(1-3C)酰胺化羧基;但当R.sub.3是较低烷基时,不对称中心I的立体化学可以是D或L,但当氨基葡萄糖具有2-氨基-2-脱氧-D-葡萄糖构型时,不对称中心I的立体化学不能是D;当R.sub.7不是H时,不对称中心II的立体化学可以是L或D;而不对称中心III的立体化学是D。这些化合物具有免疫刺激性质。