N-Benzyl-Indoles, processes for their preparation and pharmaceutical compositions containing them.

摘要

A compound of the formula <CHEM> in which R<1> is hydrogen, halo, C1-4 alkyl, C1-4 alkoxy, nitrile, optionally protected carboxy, optionally protected tetrazolyl, trihalomethyl, hydroxy-C1-4 alkyl, aldehydo,- CH2Z, -CH=CH-Z or -CH2CH2Z where Z is optionally protected carboxy or optionally protected tetrazolyl; R<2> is halo, nitrile, an optionally protected acid group or -CONR<7>R<8> where R<7> and R<8> are each hydrogen or C1-4 alkyl, R<3> and R<4> are each hydrogen, C1-4 alkyl, optionally substituted phenyl, or C1-4 alkyl substituted by -CONR<7>R<8> or an optionally protected acid group; R<5> is <CHEM> <CHEM> where W is -CH=CH-, -CH=N-, -N=CH-, -O- or -S-, R<9> is hydrogen, halo, C1-4 alkyl, C1-4 alkoxy or trihalomethyl, and R<1><0> is hydrogen, C1-4 alkyl, C2-6 alkenyl, C3-6 cycloalkyl or C1-4 alkyl-C3-6 cycloalkyl; R<6> is hydrogen or C1-4 alkyl; X is -O-(CH2)nCR<1><1>CR<1><2>-, -CR<1><1>R<1><2>-, -CR<1><1>R<1><2>.(CH2)n.CR<1><3>R<1><4>- or -CR<1><1>=CR<1><2>- where R<1><1>, R<1><2>, R<1><3> and R<1><4> are each hydrogen or C1-4 alkyl, and n is 0, 1 or 2; and Y is -O-CR<1><5>R<1><6>-, -CR<1><5>=CR<1><6>- or -CR<1><5> R<1><6>.CR<1><7>R<1><8>- where R<1><5>, R<1><6>, R<1><7> and R<1><8> are each hydrogen or C1-4 alkyl; or a salt thereof. The compounds in unprotected form are active as leukotriene antagonists.