The invention provides compounds that are chemically modified by covalent attachment of a water-soluble oligomer. A compound of the invention, when administered by any of a number of administration routes, exhibits characteristics that are different from those of the compound not attached to the water-soluble oligomer.
该发明提供了通过共价连接
水溶性寡聚体进行
化学修饰的化合物。 该发明的化合物在通过任何一种给药途径给予时,表现出与未连接
水溶性寡聚体的化合物不同的特性。