申请人:Prolinx, Inc.
公开号:US06156884A1
公开(公告)日:2000-12-05
Reagents suitable for the modification of a bioactive species for the purpose of incorporating a bifunctional boronic compound complexing moiety for subsequent conjugation to a different (or the same) bioactive species having pendant phenylboronic acid moieties of General Formula 1, ##STR1## wherein group R is an electrophilic or nucleophilic moiety suitable for reaction of the putative bifunctional boronic compound complexing reagent with a bioactive species, wherein group R.sub.2 is selected from one of H and OH moieties, and wherein group R.sub.3 is selected from one of an alkyl and a methylene bearing an electronegative substituent. Group Z is a spacer selected from (CH.sub.2).sub.n and CH.sub.2 O(CH.sub.2 CH.sub.2 O).sub.n.sbsb.2, wherein n is an integer of from 1 to 5, and wherein n.sub.2 is an integer of from 1 to 4. Each of group Z.sub.2 and Z.sub.3 is a spacer selected from CH.sub.2 Ar, CH.sub.2 CONHCH.sub.2 Ar, CH.sub.2 CONH(CH.sub.2).sub.n.sbsb.3 CO--NHCH.sub.2 Ar, and (CH.sub.2).sub.n.sbsb.4 NHCO(CH.sub.2).sub.n.sbsb.5 CONHCH.sub.2 Ar, wherein the group Ar represents the aromatic ring in the reagent of General Formula I to which the spacer Z.sub.2 or Z.sub.3 is appended, wherein n.sub.3 is an integer of from 1 to 5, wherein n.sub.4 is an integer selected from one of 2 and 3, and wherein n.sub.5 is an integer of from 1 to 4. Reaction of a reagent of General Formula I with a bioactive species affords a conjugate having pendant putative bifunctional boronic compound complexing moieties. (one or more) The conjugate may be further reacted with hydroxylamine (NH.sub.2 OH) by amidation of the benzoic acid ester moiety to afford a class of bifunctional boronic compound complexing conjugate, e.g., conjugate with one or more pendant bifunctional boronic compound complexing moieties.
适用于修改生物活性物种的试剂,目的是将具有双功能硼酸化合物络合基团的试剂并入(或相同的)具有苯硼酸酯基团的生物活性物种,其通式为1,其中基团R是适合用于反应假定的双功能硼酸化合物络合试剂与生物活性物种的亲电性或亲核性基团,其中基团R.sub.2从H和OH基团中选择,基团R.sub.3从带有电负取代基团的烷基和亚甲基中选择。基团Z是选择自(CH.sub.2).sub.n和CH.sub.2 O(CH.sub.2 CH.sub.2 O).sub.n.sbsb.2的间隔基团,其中n为1至5的整数,n.sub.2为1至4的整数。群Z.sub.2和Z.sub.3中的每个都是选择自CH.sub.2 Ar、CH.sub.2 CONHCH.sub.2 Ar、CH.sub.2 CONH(CH.sub.2).sub.n.sbsb.3 CO--NHCH.sub.2 Ar和(CH.sub.2).sub.n.sbsb.4 NHCO(CH.sub.2).sub.n.sbsb.5 CONHCH.sub.2 Ar的间隔基团,其中群Ar代表通式I中试剂中连接的间隔基团Z.sub.2或Z.sub.3的芳香环,其中n.sub.3为1至5的整数,n.sub.4为2或3中的一个整数,n.sub.5为1至4的整数。通式I的试剂与生物活性物种的反应产生具有悬挂假定双功能硼酸化合物络合基团的结合物(一个或多个)。结合物可以进一步与羟胺(NH.sub.2 OH)反应,通过苯甲酸酯基团的酰胺化作用形成一类双功能硼酸化合物络合结合物,例如,具有一个或多个悬挂双功能硼酸化合物络合基团的结合物。