| abstract |
The present invention relates to a process for the preparation of polymer conjugates of indolocarbazole compounds, in particular of K-252a polymer conjugates and derivatives thereof, by a synthetic route that results in a high purity product, With a high production of the product. In another aspect, the present invention relates to new polymer conjugates of K-252a and derivatives thereof, in which the chemical group linking the polymer unit with the compound K-252a or with the compound derived from K- 252a is characterized by a 5-membered oxazolidindionic cyclic structure. These new polymer conjugates are obtained by the new synthetic route with high purity and high yields. |