申请人:Yeda Research and Development Co., Ltd.
公开号:US09119883B2
公开(公告)日:2015-09-01
Reversible pegylated drugs are provided by derivatization of free functional groups of the drug selected from amino, hydroxyl, mercapto, phosphate and/or carboxyl with groups sensitive to mild basic conditions such as 9-fluorenylmethoxycarbonyl (Fmoc) or 2-sulfo-9-fluorenylmethoxycarbonyl (FMS), to which group a PEG moiety is attached. In these pegylated drugs, the PEG moiety and the drug residue are not linked directly to each other, but rather both residues are linked to different positions of the scaffold Fmoc or FMS structure that is highly sensitive to bases and is removable under physiological conditions. The drugs are preferably drugs containing an amino group, most preferably peptides and proteins of low or medium molecular weight. Similar molecules are provided wherein a protein carrier or another polymer carrier replaces the PEG moiety.
通过对从氨基、羟基、巯基、磷酸酯和/或羧基中选择的药物的自由功能团进行衍生化,提供了可逆的聚乙二醇化药物,这些功能团与对轻度碱性条件敏感的基团(如9-氟烯基甲氧羰基(Fmoc)或2-磺酸基-9-氟烯基甲氧羰基(FMS))结合,PEG基团附着在这些基团上。在这些聚乙二醇化药物中,PEG基团和药物残留物并不直接连接在一起,而是两个残留物连接到高度敏感于碱性并且在生理条件下可去除的脚手架Fmoc或FMS结构的不同位置。这些药物最好是含有氨基的药物,最好是低分子量或中分子量的肽类和蛋白质。还提供了类似的分子,其中蛋白质载体或另一种聚合物载体替换了PEG基团。