Compounds can specifically activate TLR7. The compounds are useful because they can stimulate innate
immunity. The compounds can be used in the treatment of conditions including
cancer, viral infections and
skin lesions. The compounds can optionally be formulated for enhanced penetration following topical administration, the composition preferably initiating a local specific inflammatory
cytokine response while limiting undesirable
erythema and other inflammatory reactions. Pharmaceutical compositions contain the compound and preferably an additional compound such as
imiquimod and / or resiquimod (R848). A composition contains the compound and a compound can be used as a medicament. Other aspects, embodiments, advantages and applications will become clear from the further description herein.