Heterobicyclic derivatives of formula (I) wherein R1 is aryl which may have suitable substituent(s), ar(lower)alkyl which may have suitable substituent(s), halo(lower)alkyl, protected carboxy(lower)alkyl, acyl(lower)alkyl, heterocyclic group or heterocyclic(lower)alkyl which may have suitable substituent(s), R2 is aryl which may have suitable substituent(s) or heterocyclic group, and R3 is hydrogen, lower alkoxy or arylthio, and a pharmaceutically acceptable salt thereof which are useful as PDE IV and TNF inhibitors for the treatment of hepatitis in human beings and animals.
式(I)的杂双环衍
生物 其中 R1 是芳基,可具有合适的取代基;ar(低级)烷基,可具有合适的取代基;卤代(低级)烷基;受保护的羧基(低级)烷基;酰基(低级)烷基;杂环基团或杂环(低级)烷基,可具有合适的取代基、R2 是芳基(可有适当的取代基)或杂环基,R3 是
氢、低级烷
氧基或芳
硫基,及其药学上可接受的盐,可作为 PDE IV 和 TNF
抑制剂用于治疗人类和动物的肝炎。