Condensed indole derivatives as 5ht and 5ht antagonists

C - Chemistry – Metallurgy – 07 – D

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C07D 487/04 (2006.01) A61K 31/41 (2006.01) A61K 31/435 (2006.01) A61K 31/495 (2006.01) C07D 471/04 (2006.01)

Patent

CA 2142721

2142721 9404533 PCTABS00030 Compounds of formula (I) or a salt thereof wherein: P represents a quinoline or isoquinoline residue, or a 5- or 6-membered aromatic heterocyclic ring containing up to three heteroatoms selected from nitrogen, oxygen or sulphur; R1 is hydrogen or C1-6 alkyl; R2, R3, R10 and R11 are independently hydrogen or C1-6 alkyl, or R10 and R11 together form a bond, or R2 and R10 or R3 and R11 together form a C2-6 alkylene chain; R4 is hydrogen, C1-6 alkyl, halogen, NR8R9 or OR12, where R8, R9 and R12 are independently hydrogen or C1-6 alkyl; R5 is hydrogen or C1-6 alkyl; R7 is hydrogen, C1-6 alkyl, OR12 or halogen, where R12 is hydrogen or C1-6 alkyl; n is 2 or 3; and the groups R13 and R14 are independently hydrogen or C1-6 alkyl, are 5HT2C/5HT2B receptor antagonists and are of potential use in the treatment of CNS disorders such as anxiety.

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