申请人:Merck & Co. Inc.
公开号:US04315913A1
公开(公告)日:1982-02-16
Immunologically active compounds of the formula: ##STR1## wherein R.sub.1 is C.sub.1-7 alkyl, substituted C.sub.1-7 alkyl; phenyl; or substituted phenyl; R.sub.2 is hydrogen; or C.sub.1-10 alkyl; R.sub.3 and R.sub.4 may be the same or different and are each independently hydrogen or acyl of the formula: ##STR2## where X is --O--, --S--, --CH.sub.2 --, or ##STR3## R.sub.9, R.sub.10 and R.sub.12 may be the same or different and are each independently hydrogen; C.sub.1-20 alkyl; C.sub.2-20 alkenyl; C.sub.1-20 alkylcarbonyloxy; amino; phenyl; benzyl; C.sub.1-20 alkoxymethyl; or C.sub.1-20 alkylamido; R.sub.11 is hydrogen; C.sub.1-30 alkyl; C.sub.2-30 alkenyl; C.sub.1-30 alkoxy; phenyl; C.sub.1-20 alkylsulfonyl; or cholesteryl; and m is 0-90; and n is 0 or 1, provided that when n is 0, R.sub.11 may additionally be phenyl, substituted phenyl, 1-adamantyl, or heterocycle selected from the group consisting of 2- or 3-furyl, 2- or 3-thienyl, 2- or 3-pyrrolidinyl, 2-, 3-, or 4-pyridyl, and 1-tetrazolyl, said heterocycle optionally substituted with C.sub.1-20 alkylcarbonyl; R.sub.5 is hydrogen; or R.sub.5 -R.sub.6 together is --CH.sub.2 --CH.sub.2 --CH.sub.2 ; R.sub.6 is hydrogen; C.sub.1-7 alkyl; hydroxymethyl; mercaptomethyl; benzyl; or substituted benzyl; R.sub.7 and R.sub.8 may be the same or different and are each independently COOR or CONR'R", where R is hydrogen or C.sub.1-7 alkyl, and R' and R" are each independently hydrogen or C.sub.1-3 alkyl; when R.sub.2 is C.sub.1-10 alkyl, the stereochemistry at asymmetric center I can be either D or L; when R.sub.6 is not hydrogen, the stereochemistry at asymmetric center II is L; the stereochemistry at asymmetric center III is D.
化合物的免疫活性成分的公式为:##STR1##其中,R.sub.1是C.sub.1-7烷基,取代的C.sub.1-7烷基;苯基;或取代的苯基;R.sub.2是氢;或C.sub.1-10烷基;R.sub.3和R.sub.4可以相同也可以不同,且各自独立地是氢或式为:##STR2##其中X是--O--,--S--,--CH.sub.2--,或##STR3##R.sub.9,R.sub.10和R.sub.12可以相同也可以不同,且各自独立地是氢;C.sub.1-20烷基;C.sub.2-20烯基;C.sub.1-20烷基羰氧基;氨基;苯基;苄基;C.sub.1-20烷氧甲基;或C.sub.1-20烷基酰胺基;R.sub.11是氢;C.sub.1-30烷基;C.sub.2-30烯基;C.sub.1-30烷氧基;苯基;C.sub.1-20烷基磺酰基;或胆固醇基;m为0-90;n为0或1,但当n为0时,R.sub.11还可以是苯基,取代的苯基,1-金刚烷基,或从2-或3-呋喃基,2-或3-噻吩基,2-或3-吡咯啉基,2-,3-或4-吡啶基,和1-四唑基中选择的杂环,所述杂环可以用C.sub.1-20烷基羰基取代;R.sub.5是氢;或R.sub.5-R.sub.6在一起是--CH.sub.2--CH.sub.2--CH.sub.2;R.sub.6是氢;C.sub.1-7烷基;羟甲基;巯基甲基;苄基;或取代的苄基;R.sub.7和R.sub.8可以相同也可以不同,且各自独立地是COOR或CONR'R",其中R是氢或C.sub.1-7烷基,而R'和R"各自独立地是氢或C.sub.1-3烷基;当R.sub.2是C.sub.1-10烷基时,不对称中心I的立体化学可以是D或L;当R.sub.6不是氢时,不对称中心II的立体化学是L;不对称中心III的立体化学是D。