Andrographolide derivatives and use thereof in manufacture of medicaments
US8367720B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2008 |
| Grant date | Feb 5, 2013 |
| Priority date | — |
| Expiry date | Aug 26, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D409/12
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to an andrographolide derivative of the formula (I), wherein R1, R2 and R3 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 R1, R2 and R3 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.