The invention provides small molecule drugs that are chemically modified by covalent attachment of a water-soluble oligomer obtained from a monodisperse or bimodal water-soluble oligomer composition. A conjugate of the invention, when administered by any of a number of administration routes, exhibits a reduced biological membrane crossing rate as compared to the biological membrane crossing rate of the small molecule drug not attached to the water-soluble oligomer.
本发明提供了一种通过共价连接来自单分散或双峰
水溶性寡聚物组合物的
水溶性寡聚物对小分子药物进行
化学修饰的方法。本发明的结合物在任何给药途径下,与未连接
水溶性寡聚物的小分子药物相比,表现出降低的
生物膜穿透速率。