Benzopyran derivatives, compositions containing them and processes for their preparation
申请人:FISONS plc
公开号:EP0150966A2
公开(公告)日:1985-08-07
There are provided benzopyrans of formula I,
wherein an adjacent pair of R5, Re, R7 and R8 represent the chain -X-CR12R13-CR14R15-Y- in which the chain is substituted by -A1E1,
X represents CR10R11 or a single bond,
Y represents 0, S, NR20 or CR16R17, and
(a) R14 and R20 together form a single bond and optionally R10 and R12 together form a single bond, or
(b) R12 and R14 together form a single bond, or
(c) Rio, R12 and R14 each represent hydrogen; and
the remainder of Rio, R11, R12, R13, R14, R15, R16 and R17, which may be the same or different, independently represent hydrogen, alkyl, NR21COR22, CN or CnHxF(2+1-x); in addition, a a geminal pair of Rio, R11, R12, R13, R14, R15, R16 and R17 together with the carbon atoms to which they are attached, may represent C=O or C=N-OR23; also a vicinal pair of R11, R13, R15 and R17, may form the chain -CH =CH-CH=CH- which is substituted by A1E1;
A and A1, which may be the same or different, represent a single bond, (CH2)m or arylene,
n represents an integer from 1 to 10 inclusive,
x represents 0 or an integer from 1 to 2n inclusive,
m represents an integer from 1 to 10 inclusive, when R20 does not form a single bond with R14, R20 may represent hydrogen, alkyl, aryl or alkyl substituted by aryl,
R21, R22 and R23, which may be the same or different, independently represent hydrogen, alkyl or aryl;
the remainder of R5, R6, R7 and R8, which may be the same or different, each independently represent hydrogen, hydroxy, alkoxy, amino, halogen, nitro, cyano, alkyl, aryl or alkyl substituted by aryl,
E and E1, which may be the same or different, independently represent -COOH, or 5H-tetrazolyl,
with certain provisos defined herein,
and pharmaceutically acceptable derivatives thereof.
There are also decribed processes to the compounds of formula I and pharmaceutical, e.g. anti-asthma, compositions containing them.
提供了式 I 的苯并吡喃、
其中相邻的一对 R5、Re、R7 和 R8 代表链 -X-CR12R13-CR14R15-Y-,其中该链被 -A1E1 取代、
X 代表 CR10R11 或单键、
Y 代表 0、S、NR20 或 CR16R17,以及
(a) R14 和 R20 形成单键,可选择 R10 和 R12 形成单键,或
(b) R12 和 R14 形成单键,或
(c) Rio、R12 和 R14 各自代表氢;以及
Rio、R11、R12、R13、R14、R15、R16 和 R17 的其余部分(可以相同或不同)各自代表氢、烷基、NR21COR22、CN 或 CnHxF(2+1-x);此外,Rio、R11、R12、R13、R14、R15、R16 和 R17 的一对基团及其所连接的碳原子可以代表 C=O 或 C=N-OR23;R11、R13、R15 和 R17 的一对邻接基团还可以形成被 A1E1 取代的链 -CH =CH-CH=CH- ;
A 和 A1 可以相同或不同,代表单键、(CH2)m 或芳基、
n 代表 1 至 10(含 10)的整数、
x 代表 0 或 1 至 2n 的整数(含 2n
当 R20 不与 R14 形成单键时,R20 可代表氢、烷基、芳基或被芳基取代的烷基、
R21、R22 和 R23 可以相同或不同,各自代表氢、烷基或芳基;
R5、R6、R7 和 R8 的其余部分,它们可以相同或不同,各自独立地代表氢、羟基、烷氧基、氨基、卤素、硝基、氰基、烷基、芳基或被芳基取代的烷基、
E 和 E1 可以相同或不同,各自独立地代表-COOH 或 5H-四唑基、
本文定义的某些但书、
及其药学上可接受的衍生物。
此外,还介绍了式 I 化合物和含有它们的药物组合物(如抗哮喘组合物)的工艺。