摘要 |
This invention provides a method of preparing conjugates of bioactive compounds and site-specific compounds in which covalent bonding between the compounds is effected by interfacial condensation while protecting the active binding sites from the condensation reaction. This provides very high yields of the bioactive, site-specific conjugate, the products are homogeneous and it provides novel conjugate products. It is of particular advantage for monoclonal antibodies conjugated with cytotoxic agents. |