| abstract |
An antiallergic agent for topical administration containing an adenine compound of general formula (1): n n n n n n n n n n [wherein ring A represents a 6 to 10 membered, mono or bicyclic, aromatic hydrocarbon or a 5 to 10 membered, mono or bicyclic, aromatic heterocycle containing one to three heteroatoms selected among 0 to 2 nitrogen atoms, 0 or 1 oxygen atom, and 0 or 1 sulfur atom; n is an integer of 0 to 2; m is an integer of 0 to 2; R represents halogeno, (un)substituted alkyl, etc.; X 1 represents oxygen, sulfur, NR 1 (R 1 represents hydrogen or alkyl), or a single bond; Y 1 represents a single bond, alkylene, etc.; Y 2 represents a single bond, alkylene, etc.; Z represents alkylene; and at least one of Q 1 and Q 2 represents —COOR 10 (wherein R 10 represents (un)substituted alkyl, etc.), etc.] or a pharmaceutically acceptable salt of the compound. |