140639-96-9Relevant articles and documents
Certain indole derivatives useful as leukotriene antagonists
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, (2008/06/13)
A compound of the formula STR1 in which R1 is hydrogen, halo, C1-4 alkyl, C1-4 alkoxy, nitrile, optionally protected carboxy, optionally protected tetrazolyl, trihalomethyl, hydroxy-C1-4 alkyl, aldehydo, --CH2 Z, --CH=CH--Z or --CH2 CH2 Z where Z is optionally protected carboxy or optionally protected tetrazolyl; R2 is halo, nitrile, an optionally protected acid group or --CONR7 R8 where R7 and R8 are each hydrogen or C1-4 alkyl; R3 and R4 are each hydrogen, C1-4 alkyl, optionally substituted phenyl, or C1-4 alkyl substituted by --CONR7 R8 or an optionally protected acid group; R5 is STR2 where W is --CH=CH--, --CH=N--, --N=CH--, --O-- or --S--, R9 is hydrogen, halo, C1-4 alkyl, C1-4 alkoxy or trihalomethyl, and R10 is hydrogen, C1-4 alkyl, C2-6 alkenyl, C3-6 cycloalkyl or C1-4 alkyl-C3-6 cycloalkyl; R6 is hydrogen or C1-4 alkyl; X is --O--(CH2)n CR11 R12, --CR11 R12 --, --CR11 R12.(CH2)n.CR13 R14 -- or --CR11 =CR12 -- where R11, R12, R13 and R14 are each hydrogen or C1-4 alkyl, and n is 0, 1 or 2; and Y is --O--CR15 R16 --, --CR15 =CR16 -- or --CR15 R16.CR17 R18 -- where R15, R16, R17 and R18 are each hydrogen or C 1-4 alkyl; or a salt thereof. The compounds in unprotected form are active as leukotriene antagonists.
