| abstract |
The present invention provides a compound, etc. which has aldehyde dehydrogenase 2 (ALDH2) activating activity. Provided are a compound represented by formula (1), a pharmaceutically acceptable salt thereof, and a prodrug thereof. [In the formula, A is a heterocyclic ring, R 1 and R 2 are each independently hydrogen, an alkyl, an alkenyl or an alkynyl; R 3 is an alkyl, an alkenyl, or an alkynyl; and X 1 and X 2 are each independently a halogen.] |