A compound of the formula (I):
wherein:
X is O of S;
Y is -CH2-CH2-, -CH=CH- or -C≡C-;
n is 1 to 5;
R, is hydrogen or CO2R1 represents an ester group in which the R, moiety contains from 1 to 12 carbon atoms;
R2 is hydrogen or C1-4 alkyl;
R3 is hydroxy or protected hydroxy;
R4 is C1-9 alkyl, C3-8 cycloalkyl or C3-8 cycloalkyl - C1-6 alkyl; or
R2 and R4 taken with the carbon atom to which they are joined represent a C5-8 cycloalkyl group; and
R5 is (CH2)aNR6R7, wherein a is 0 to 3 and R6 and R7 are hydrogen, C1-4 alkyl or phenyl C1-4 alkyl, or Re and R7 taken with the nitrogen atom to which they are joined represent a 4 to 7 membered heterocyclic ring which may contain as sole further hetero atom one oxygen atom or one optionally C1-4 alkyl substituted nitrogen atom; allyl or propargyl; (CH2)b-CO -(CH2)c-CH3 wherein b+c is 1 to 5 and b is not zero; or S-R8 wherein R8 is C1-6 alkyl, phenyl, or phenyl substituted by a halogen, trifluoromethyl, C1-6 alkyl, C1-6 alkoxy or nitro group, and salts thereof have useful pharmaceutical activity including bronchodilator activity. They can be prepared according to four methods.
式 (I) 的化合物:
其中
X 是 S 的 O
Y是-
CH2- -、-CH=CH-或-C≡C-;
n 是 1 至 5;
R,是氢或 CO2R1 代表酯基,其中 R,分子含有 1 至 12 个碳原子;
R2 是氢或 C1-4 烷基;
R3 是羟基或受保护的羟基;
R4 是 C1-9 烷基、C3-8 环烷基或 C3-8 环烷基-C1-6 烷基;或
R2 和 R4 与它们连接的碳原子一起代表 C5-8 环烷基;以及
R5为( )aNR6R7,其中a为0至3,R6和R7为氢、C1-4烷基或苯基C1-4烷基,或Re和R7与连接它们的氮原子一起代表一个4至7个成员的杂环,该杂环可包含一个氧原子或一个任选被C1-4烷基取代的氮原子作为唯一的杂原子;烯丙基或
丙炔基;( )b-CO-( )c-
CH3,其中 b+c 为 1 至 5,b 不为零;或 S-R8,其中 R8 为 C1-6 烷基、苯基或被卤素、三
氟甲基、C1-6 烷基、C1-6 烷氧基或硝基取代的苯基。它们可以通过四种方法制备。