| abstract |
The present invention is to provide an imidazolidinedione derivative and oxazolidinedione derivative represented by the following general Formula (I) having the chymase and/or tryptase inhibition activity n n n [wherein R 1 and R 2 are the same or different, and denote a lower alkyl group or a phenyl group, or R 1 and R 2 are taken together to form a ring, R 3 denotes an optionally substituted naphthyl group or heterocyclic group, A denotes oxygen or NR 4 (R 4 is hydrogen or optionally substituted lower alkyl group), or NB 2 R 5 (R 5 is aryl group, and B 2 is carbonyl group or sulfonyl group), and B 1 denotes a carbonyl group or a sulfonyl group], or a pharmaceutically acceptable salt thereof. |