| 摘要 |
<p>The present invention relates to a polymer carrier, suitable for binding to immunoglobulin, having 5 to 500 molecules of a cytotoxic drug covalently bound thereto, said carrier having a molecular weight of 5000 to 500,000 and free carboxyl, amino or cycloimidocarbonate groups for covalent bonding, the cytotoxic drug also having amino or carboxyl groups available for covalent bonding.</p> |
