A compound represented by the figure (1) or a pharmaceutically acceptable salt thereof is useful as medicament for treating retinal degenerative disorders:
wherein Ar is optionally substitued phenyl or optionally substituted heteroaryl;.
n is 0, 1 or 2;
W is —CH2NH— or —CH═N(O)—;
R1, R2 and R3 are independently optionally substituted alkyl, carboxyl or alkoxycarbonyl; any two groups of R1, R2 and R3 may be taken together with the carbon atom to form optionally substituted cycloalkane; all of R1, R2 and R3 may be taken together with the adjusent carbon atom to form optionally substituted bicycloalkane or optionally substituted tricycloalkane;
R4 and R5 are independently hydrogen atom or optionally substituted alkyl.
化合物(1)或其药学上可接受的盐在治疗视网膜退行性疾病方面是有用的药物:其中Ar是可选取代的苯基或可选取代的杂环基;n为0、1或2;W为—CH2NH—或—CH═N(O)—;R1、R2和R3独立地是可选取代的烷基、羧基或烷氧羰基;R1、R2和R3中的任意两个基团可以与碳原子结合形成可选取代的环
烷烃;所有的R1、R2和R3可以与相邻的碳原子结合形成可选取代的双环
烷烃或可选取代的
三环烷烃;R4和R5独立地是氢原子或可选取代的烷基。