The present invention discloses doxorubicin derivatives for targeted activation by Legumain, its preparation method and use. The doxorubicin derivatives are obtained by condensation between the amino group of compound A and the carboxyl group of compound B and have the following structure:
compounds A and B have the following structures, respectively:
wherein R
3
in compound B is Leu or absent; R
4
is any one amino acid selected from the group consisting of Ala and Thr; R
5
is any one amino acid selected from the group consisting of Ala, Thr and Asn; R
6
is
wherein n=1-20; or
wherein R
7
is substituted or unsubstituted, linear or branched, saturated or unsaturated C1-C20 fatty hydrocarbon, or substituted or unsubstituted C6-C20 aromatic hydrocarbon. The doxorubicin derivatives of the present invention are specifically tumor-targeted and have a long in vivo metabolic half-life, as compared with doxorubicin. They exhibit an efficient and safe anti-tumor effect and could be used to prepare an anti-tumor drug.
本发明公开了靶向Legumain激活的
阿霉素衍
生物,其制备方法和用途。
阿霉素衍
生物是通过化合物A的
氨基与化合物B的羧基之间的缩合得到的,并具有以下结构:化合物A和B分别具有以下结构:其中,在化合物B中,R3为Leu或不存在;R4为从Ala和Thr组成的
氨基酸中选择的任一种;R5为从Ala、Thr和Asn组成的
氨基酸中选择的任一种;R6为其中n=1-20;或其中R7为取代或未取代的、直链或支链的、饱和或不饱和的C1-C20脂肪烃,或取代或未取代的C6-C20
芳香烃。 本发明的
阿霉素衍
生物具有特异性肿瘤靶向性,并且与
阿霉素相比,在体内代谢半衰期长。它们表现出高效且安全的抗肿瘤作用,并可用于制备
抗肿瘤药物。