This invention is directed to a method for preventing or treating neuropathic pain and cluster and migraine headache-associated pain comprising administering to a subject in need thereof a therapeutically effective amount of a compound of Formula (I): ##STR00001## wherein phenyl is substituted at X with one to five halogen atoms independently selected from the group consisting of fluorine, chlorine, bromine and iodine; and; R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are independently selected from the group consisting of hydrogen and C.sub.1 C.sub.4 alkyl; wherein C.sub.1 C.sub.4 alkyl is optionally substituted with phenyl (wherein phenyl is optionally substituted with substituents independently selected from the group consisting of hydrogen, halogen, C.sub.1 C.sub.4 alkyl, C.sub.1 C.sub.4 alkoxy, amino, nitro and cyano).

Ortho-McNeil Pharmaceutical Inc.

Carbamate compounds for use in preventing or treating neuropathic pain and cluster and migraine headache-associated pain

Compounds of the formula ##STR1## wherein n is 0, 1, or 2; X is hydrogen, chlorine, bromine or iodine; R.sub.1 is hydrogen; R.sub.3 is selected from hydrogen and C.sub.1 to C.sub.6 linear or branched alkyl; and R.sub.2 is as defined in the specification and the pharmaceutically acceptable salts thereof are useful psychotherapeutics and are potent serotonin (5-HT.sub.1) agonists and may be used in the treatment of depression, anxiety, eating disorders, obesity, drug abuse, cluster headache, migraine, pain, chronic paroxysmal hemicrania and headache associated with vascular disorders, and other disorders arising from deficient serotonergic neurotransmission. The compounds can also be used as centrally acting antihypertensives and vasodilators. A process for forming indoles by transition metal catalyzed cyclization of a dihalogenated intermediate is also disclosed.

Pfizer Inc.

Indole derivatives

Compounds of formula (I), wherein R.sub.1 is (a), (b), (c) or (d); n is 0, 1 or 2; A, B, C and D are each independently nitrogen or carbon; R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are each independently hydrogen, C.sub.1 to C.sub.6 alkyl, aryl, C.sub.1 to C.sub.3 alkyl-aryl, halogen (e.g. fluorine, chlorine, bromine or iodine), cyano, nitro, --(CH.sub.2).sub.m NR.sub.14 R.sub.15, --(CH.sub.2).sub.m OR.sub.9, --SR.sub.9, --SO.sub.2 NR.sub.14 R.sub.15, --(CH.sub.2).sub.m NR.sub.14 SO.sub.2 R.sub.15 --(CH.sub.2).sub.m NR.sub.14 CO.sub.2 R.sub.9, --(CH.sub.2).sub.m NR.sub.14 COR.sub.9, --(CH.sub.2).sub.m NR.sub.14 CONHR.sub.9, --CONR.sub.14 R.sub.15, or --CO.sub.2 R.sub.9 ; R.sub.2 and R.sub.3, R.sub.3 and R.sub.4, or R.sub.4 and R.sub.5 may be taken together to form a five- to seven-membered alkyl ring, a six-membered aryl ring, a five- to seven-membered heteroalkyl ring having 1 heteroatom of N, O, or S, or a five- to six-membered heteroaryl ring having H 1 or 2 heteroatoms of N, O, or S and the pharmaceutically acceptable salts thereof. These compounds are useful in treating migraine and other disorders. These compounds are useful psychotherapeutics and are potent serotonin (5-HT.sub.1) agonists and benzodiazepine agonists and antagonists and may be used in the treatment of depression, anxiety, eating disorders, obesity, drug abuse, cluster headache, migraine, pain and chronic paroxysmal hemicrania and headache associated with vascular disorders, and other disorders arising from deficient serotonergic neurotransmission. The compounds can also be used as centrally acting antihypertensives and vosodilators. ##STR1##

chlorine/cefaleia

Carbamate compounds for use in preventing or treating neuropathic pain and cluster and migraine headache-associated pain

Indole derivatives

5-arylindole derivatives

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