申请人:Johnson Fletcher Bruce
公开号:US20050049487A1
公开(公告)日:2005-03-03
Compounds that include a targeting moiety bound to a regioselective leaving group are useful for preparing imaging agents. The imaging agents can be isolated from by-products derived from the leaving group based on differences in the chemical attributes (e.g., net charge or polarity) of the molecules or physical attributes of the molecules through the use of a solid support. Methods of producing an imaging agent include the steps of providing a compound that includes a targeting moiety bound to a support via a linker group that contains a site for regioselective substitution of a detectable species, contacting the compound with a solution containing the detectable species, and recovering the imaging agent. Kits which include a first container having therein a solution containing a detectable species and a second container having therein a compound that includes a targeting moiety bound to a support via a leaving group that contains a site for regioselective substitution of the detectable species are also useful for preparing imaging agents.
含有定向基团结合到区域选择性离去基团的化合物对于制备成像剂是有用的。成像剂可以通过固体支持物来分离出来,该支持物基于分子的化学属性(例如净电荷或极性)或物理属性与离去基团衍生物之间的差异。制备成像剂的方法包括以下步骤:提供一种化合物,该化合物包括通过含有可检测物质的置换位点结合到支持物上的定向基团,将该化合物与包含可检测物质的溶液接触,然后回收成像剂。同时,包括第一容器和第二容器的套装对于制备成像剂也是有用的,其中第一容器中含有可检测物质的溶液,第二容器中含有通过含有置换可检测物质的离去基团结合到支持物上的定向基团的化合物。