abstract |
An adenine compound useful as a medicine represented by the following formula (1): n n n n n n n n n n [wherein R 1 is halogen atom, optionally substituted alkyl group, optionally substituted aryl group, etc.;n X is oxygen atom, sulfur atom, a single bond, etc.; A 1 is optionally substituted and optionally saturated 4 to 8 membered heterocyclic group containing 1 to 2 hetero atoms selected from 1 to 3 nitrogen atoms, 0 to 1 oxygen atom, and 0 to 1 sulfur atom; A 2 is optionally substituted 6 to 10 cyclic aromatic hydrocarbon group or optionally substituted 5 to 10 membered heterocyclic aromatic group; L 1 and L 2 are independently, substituted straight or branched alkylene or a single bond, etc.; L 3 is optionally substituted straight or branched alkylene, etc.; R 2 is hydrogen atom, optionally substituted alkyl group.]n nor its pharmaceutically acceptable salt. |