申请人:Xoma Corporation
公开号:US05218112A1
公开(公告)日:1993-06-08
Compounds containing carbohydrate moieties or carboxyl groups are linked to either compounds containing thiol moieties or electron-deficient moieties by the use of linking agents of the formula ##STR1## in which R.sup.1 is NH.sub.2 -- or NH.sub.2 --NH--; R.sup.2 is --NH--C(O)--, --C(O)--NH--, or --C(O)--; R.sup.3 is C.sub.1 -C.sub.10 alkylene, C.sub.5 -C.sub.7 cyclic alkylene, arylene, phenyl-substituted C.sub.1 -C.sub.10 alkylene, benzyl-substituted C.sub.1 -C.sub.10 alkylene, or amino-substituted C.sub.1 -C.sub.10 alkylene; R.sup.4 is H, acetyl, ##STR2## where R.sup.5 is C.sub.1 -C.sub.5 alkyl; m is zero or 1; and n ia zero or 1.
含有碳水化合物基团或羧基的化合物,通过使用公式##STR1##中的连接剂与含有硫醇基团或电子缺失基团的化合物连接,其中R.sup.1为NH.sub.2-或NH.sub.2--NH-;R.sup.2为--NH--C(O)--,--C(O)--NH-,或--C(O)-;R.sup.3为C.sub.1-C.sub.10烷基,C.sub.5-C.sub.7环烷基,芳基,苯基取代的C.sub.1-C.sub.10烷基,苄基取代的C.sub.1-C.sub.10烷基或氨基取代的C.sub.1-C.sub.10烷基;R.sup.4为H,乙酰,##STR2##其中R.sup.5为C.sub.1-C.sub.5烷基;m为零或1; n为零或1。