Disclosed herein is a class of linkable tetrasaccharide compounds that includes the amino phenyl glycoside of sialyl Lewis X (SLe
X
) and related analogs. These compounds have conjugatable nucleophilic groups, making them useful in preparing multimeric SLe
X
compositions. In particular, the disclosed SLe
X
compounds can be used to prepare selectin binding ligand con-jugatcs by linking them to a reporter moiety, such as a contrast agent, a radiodiagnostic agent, or a cytotoxic or chemotherapeutic agent. The SLe
X
compounds and conjugates of the invention exhibit binding to selectin that is similar to native Sialyl Le
X
, and are, therefore, useful for diagnosing and treating selectin-mediated disorders and related conditions.
本文披露了一类可连接四糖化合物,其中包括
唾液酸Lewis X(SLeX)的
氨基苯基糖苷和相关类似物。这些化合物具有可共轭的亲核基团,因此它们在制备多聚SLeX组分方面是有用的。特别地,所披露的SLeX化合物可用于通过将它们与报告物质(如对比剂、放射性诊断剂或细胞毒素或化疗剂)连接起来,制备选择素结合
配体共轭物。本发明的SLeX化合物和共轭物表现出与天然
唾液酸LeX相似的选择素结合性,因此可用于诊断和治疗选择素介导的疾病和相关病症。