Disclosed is a method for the prevention and/or treatment of a chronic obstructive pulmonary disease by administrating a 5-membered cyclic compound represented by the formula below:
or a pharmaceutically acceptable salt of the compound or a prodrug of the compound or salt: wherein X represents an oxygen or sulfur atom; R
1
represents a hydrogen atom, a substituted or unsubstituted alkyl or the like; R
2
represents a hydrogen atom, a substituted or unsubstituted alkyl or the like; Y
1
represents single bond, a substituted or unsubstituted alkylene or the like; the wavy line means an (E) or (Z) coordination; R
3
represents a hydrogen atom, a substituted or unsubstituted aryl or the like; Y
2
represents a substituted or unsubstituted alkylene or an alkenylene; R
4
represents a hydrogen atom, a substituted or unsubstituted alkanoyl or the like; and R
5
represents a hydrogen atom or a substituted or unsubstituted alkyl.
本发明公开了一种通过给予下式所表示的5元环化合物的药物或其盐或其前药的方法,用于预防和/或治疗慢性阻塞性肺疾病:其中X代表氧或
硫原子;R1代表氢原子,取代或未取代的烷基或类似物;R2代表氢原子,取代或未取代的烷基或类似物;Y1代表单键,取代或未取代的亚烷基或类似物;波浪线表示(E)或(Z)配位;R3代表氢原子,取代或未取代的芳基或类似物;Y2代表取代或未取代的亚烷基或烯基;R4代表氢原子,取代或未取代的脂肪酰基或类似物;R5代表氢原子或取代或未取代的烷基。