Allelix Biopharmaceuticals Inc.

Qingchang Meng

Abdelmalik Slassi

Sumanas Rakhit

Louise G Edwards

Described herein are compounds selective for the 5-HT.sub.1D -like receptor, which have the general formula: ##STR1## wherein: R.sup.1 is linear or branched loweralkyl;

5-alkyl indole compounds

Described herein are compounds selective for a 5-HT.sub.1D -like receptor, which have the general formula: ##STR1## wherein A is selected from a six-membered, non-aromatic, optionally substituted carbocycle and a six-membered, non-aromatic, optionally substituted heterocycle having one or two heteroatoms selected from O, S, SO, SO.sub.2 and N.sup.4 ;

5-cyclo indole compounds

5-Thiophene-substituted tryptamine analogs are provided, which exhibit selectivity towards 5-HT.sub.D1 receptors and consequently show potential in alleviation of the symptoms of migraine. The analogs are represented by the following general chemical formula: ##STR1## in which X represents H, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 hydroxyalkyl or halogen, at the 4- or 5-position of the thiophene nucleus; Y represents a direct bond or a C.sub.1 -C.sub.3 alkylene group optionally substituted with hydroxyl: and Z represents amino, mono- or di-N-lower alkyl-substituted amino, or optionally N-lower alkyl-substituted pyrrolidine.

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Georgetown, Canada

Qingchang Meng