申请人:Takemura Isao
公开号:US20080039511A1
公开(公告)日:2008-02-14
An object of the present invention is to provide a novel thiazole compound with specific inhibitory activity against phosphodiesterase 4.
The present invention provides a compound represented by Formula (1), an optical isomer thereof, or a salt thereof:
wherein R1 is a di-C
1-6
alkoxyphenyl group; R2 is any one of the following groups (a) to (t): (a) a phenyl group; (b) a naphthyl group; (c) a pyridyl group; (d) a furyl group; (e) a thienyl group; (f) an isoxazolyl group; (g) a thiazolyl group; (h) a pyrrolyl group; (i) an imidazolyl group; (j) a tetrazolyl group; (k) a pyrazinyl group; (l) a thienothienyl group; (m) a benzothienyl group; (n) an indolyl group; (o) a benzimidazolyl group; (p) an indazolyl group; (q) a quinolyl group; (r) a 1,2,3,4-tetrahydroquinolyl group; (s) a quinoxalinyl group; and (t) a 1,3-benzodioxolyl group; and A is any one of the following groups (i) to (vi): (i) —CO—B— wherein B is a C
1-6
alkylene group; (ii) —CO—Ba wherein Ba is a C
2-6
alkenylene group; (iii) —CH(OH)—B—; (iv) —COCH(COOR3)-Bb- wherein R3 is a C
1-6
alkyl group and Bb is a C
1-6
alkylene group; and (v) -Bc- wherein Bc is a C
2-6
alkylene group.
本发明的目的是提供一种具有特定磷酸二酯酶4抑制活性的新型噻唑化合物。本发明提供一种由式(1)表示的化合物,其光学异构体或其盐:其中,R1是二C1-6烷氧基苯基基团;R2是以下(a)到(t)中的任意一种基团:(a)苯基;(b)萘基;(c)吡啶基;(d)呋喃基;(e)噻吩基;(f)异噁唑基;(g)噻唑基;(h)吡咯基;(i)咪唑基;(j)四唑基;(k)吡嗪基;(l)噻吩噻基;(m)苯并噻吩基;(n)吲哚基;(o)苯并咪唑基;(p)吲唑基;(q)喹啉基;(r)1,2,3,4-四氢喹啉基;(s)喹喔啉基;以及(t)1,3-苯并二氧杂环基;A是以下(i)到(vi)中的任意一种基团:(i) -CO-B-,其中B是C1-6烷基撑链基团;(ii) -CO-Ba,其中Ba是C2-6烯基撑链基团;(iii) -CH(OH)-B-;(iv) -COCH(COOR3)-Bb-,其中R3是C1-6烷基团,Bb是C1-6烷基撑链基团;以及(v) -Bc-,其中Bc是C2-6烷基撑链基团。