FUSED HETEROCYCLIC DERIVATIVE AND USE THEREOF

摘要

The present invention provides a compound having a superior Smo inhibitory activity and lower toxicity, which is sufficiently satisfactory as a pharmaceutical product The present invention provides a compound represented by the formula (I) wherein ring A is 5- to 7-membered ring optionally having substituent(s), where substituent(s) are optionally bonded to each other to form a ring; X is O, S or NR(Ris a hydrogen atom or a hydrocarbon group optionally having substituent(s)); Ris carbamoyl optionally having substituent(s); and Ris hydroxy optionally having substituent(s), or a salt thereof.