申请人:Wang Yuqiang
公开号:US20110077295A1
公开(公告)日:2011-03-31
The present invention relates to an andrographolide derivative of the formula (I), wherein R
1
, R
2
and R
3
are same or different substituents selected from hydrogen, substituted or unsubstituted organic acid radicals, inorganic acid radicals, alkyl, aryl or heteroaryl, and at least one of R
1
, R
2
and R
3
is R-lipoic acid, S-lipoic acid or a mixture thereof, or corresponding dihydrolipoic acids thereof, or N-acetylcysteine radical. The derivative has good antitumor effect, can induce apoptosis of tumor cells, can directly kill Gram-positive bacteria (
staphylococcus aureus
) and drug resistance bacteria (MRSA5676 and MRSA5677), can inhibit the QS-system of Gram-negative bacteria (
Pseudomonas aeruginosa
), can inhibit and destroy the formation of biofilm of
Pseudomonas aeruginosa;
and exhibits significant hypoglycemic effect, so that it can be used in manufacture of medicaments for treatment of cancers, inflammation, diabetes, and bacterial and viral infections.
本发明涉及一种公式(I)的andrographolide衍生物,其中R1、R2和R3是相同或不同的取代基,所选取代基包括氢、取代或未取代的有机酸基团、无机酸基团、烷基、芳基或杂环基,且R1、R2和R3中至少有一个是R-硫辛酸、S-硫辛酸或其混合物,或相应的二氢硫辛酸,或N-乙酰半胱氨酸基团。该衍生物具有良好的抗肿瘤效果,可以诱导肿瘤细胞凋亡,可以直接杀死革兰阳性细菌(金黄色葡萄球菌)和耐药细菌(MRSA5676和MRSA5677),可以抑制革兰阴性细菌(铜绿假单胞菌)的QS系统,可以抑制和破坏铜绿假单胞菌的生物膜形成;并具有显著的降血糖作用,因此可以用于制造治疗癌症、炎症、糖尿病和细菌和病毒感染的药物。