The present invention relates to betulonic and betulinic acid derivatives and, in particular, to C-28 and C-3 derivatives. The present invention relates to betulonic acid esters, and dihydro-betulonic acid esters. Betulinic acid and derivatives thereof may be bound to a poly(alkylene glycol) (PAG) such as poly(ethylene glycol). Binding may be via a linker, such as a diamine, an amino acid, a peptide, an ester or a carbonate.
The compounds of the present invention may be used for the treatment of cancer or a viral infection. The present invention also provides pharmaceutical compositions comprising the compounds of the present invention.
本发明涉及
白桦酸和桦酸衍
生物,特别是C-28和C-3衍
生物。本发明涉及
白桦酸酯和二氢
白桦酸酯。
白桦酸及其衍
生物可以与聚(烷基醚)(PAG),如聚(
乙二醇)结合。结合可以通过连接剂,如二胺,
氨基酸,肽,酯或
碳酸酯来实现。本发明的化合物可用于治疗癌症或病毒感染。本发明还提供了包含本发明的化合物的制药组合物。