The invention relates generally to disulfide drug conjugates wherein a linker comprising a sulfur-bearing carbon atom substituted with at least one hydrocarbyl or substituted hydrocarbyl is conjugated by a disulfide bond to a cysteine sulfur atom of a targeting carrier, and wherein the linker is further conjugated to a drug moiety. The invention further relates to activated linker-drug conjugates suitable for conjugation to a targeting carrier by a disulfide bond. The invention further relates to methods for preparing hindered disulfide drug conjugates.
本发明一般涉及二
硫化物药物共轭物,其中由至少一个烃基或取代烃基取代的含
硫碳原子组成的连接体通过二
硫键与靶向载体的半胱
氨酸
硫原子共轭,并且连接体进一步与药物分子共轭。 本发明进一步涉及适合通过二
硫键与靶向载体共轭的活化连接体-药物共轭物。 本发明进一步涉及制备受阻二
硫化物药物共轭物的方法。