TANIGUCHI TAKAHIKO,KAWADA AKIRA,KONDO MITSUYO,QUINN JOHN F.,KUNITOMO JUN,YOSHIKAWA MASATO,FUSHIMI MAKOTO
申请号：
TN2011000362
公开号：
TN2011000362A1
申请日:
2011.07.22
申请国别(地区):
TN
年份:
2013
代理人:
摘要：
The present invention provides a compound which has the effect of PDE inhibition, and which is useful as a medicament for preventing or treating schizophrenia or so on. A compound of formula (I0), wherein R1 represents a substituent； R2 represents a hydrogen atom, or a substituent； R3 represents a hydrogen atom, or a substituent； Ring A represents an aromatic ring which can be substituted, and Ring B represents a 5-membered heteroaromatic ring which can be substituted,or a salt thereof.
