| abstract |
The present invention relates to a compound of formula (I) [Wherein R 1 to R 4 are as defined in the specification and claims] and the pharmaceutically acceptable salts thereof. Such compounds are TLR agonists and thus for the treatment of diseases such as cancer, autoimmune diseases, inflammation, sepsis, allergy, asthma, graft rejection, graft-versus-host disease, immunodeficiency, and infections. It may be useful as a medicine. [Selection figure] None |