Merck + Co., Inc.

Doug W Hobbs

Mark G Bock

Ben E Evans

Peter D Williams

Daniel F Veber

Roger M Freidinger

Douglas J Pettibone

Kevin F Gilbert

James B Hoffman

Paul S Anderson

Debra S Perlow

Joseph M Pawluczyk

George F Lundell

Jill M Erb

Hydantoin and succinimide-substituted derivatives of

Camphorcarbonyl

Compounds of the formula ##STR1## X is --O--, --NH-- and --NR.sup.8 --; Y is --CH.sub.2 --, --CHR.sup.8 -- and --C(R.sup.8).sub.2 --; R.sup.1 is camphor-10-yl, C.sub.1-5 alkoxyl, styryl, hydroxystyryl, furyl, unsubstituted or substituted thienyl, naphthyl, indolyl, tetrahydronaphthyl, unsubstituted, mono- or di-substituted pyridyl, pyrazinyl, unsubstituted or substituted cyclohexyl where the substituent is R.sup.4, and unsubstituted or substituted phenyl where the substituents on phenyl are R.sup.5, R.sup.6 and R.sup.7 ; R.sup.2 is hydrogen, C.sub.1-5 alkoxy, C.sub.1-5 alkyl, amino, C.sub.1-5 alkylcarbonylamino, nitro or halogen; R.sup.3 is hydrogen, C.sub.1-5 alkoxycarbonyl, cyano or carbamoyl; R.sup.4 is one to two of hydrogen, oxo, hydroxy, C.sub.1-5 alkoxy, C.sub.1-5 alkoxycarbonylamino-C.sub.1-5 alkyl and amino-C.sub.1-5 alkyl; R.sup.5, R.sup.6 are each independently selected from hydrogen, halogen, C.sub.1-5 alkyl, hydroxyl and C.sub.1-5 alkoxy; R.sup.7 is ##STR2## W is CO or SO.sub.2 ; and m is an integer from 0 to 1. Such compounds as useful as oxytocin and vasopressin receptor antagonists.

Benzoxazinone and benzopyrimidinone piperidinyl tocolytic oxytocin

The invention is directed to a series of novel piperazinylcamphorsulfonyl compounds where the camphor ring is substituted by amides, amines, alkanes, alkenes, alkylamines, halogens, hydroxy, carboxy, alkoxycarbonyl and heterocyclic tings. Such compounds are oxytocin antagonists useful in the treatment of preterm labor, dysmenorrhea and for the stoppage of labor preparatory to cesarean delivery.

Piperazinylcamphorsulfonyl oxytocin antagonists

Compounds of the formula: ##STR1## where R.sup.1 is hydrogen or hydroxy and R.sup.2 is a substituted amino group, a substituted heterocyclic ring or a substituted alkyl. These compounds are oxytocin and vasopressin antagonists useful in the treatment of preterm labor, dysmenorrhea and for the stoppage of labor preparatory to cesarean delivery, timing of parturition, uterine hyperactivity, endometriosis, hypertension, congestive heart failure, hyponatremia and cognitive disorders. Also disclosed are pharmaceutical compositions containing these compounds, methods of their use and methods of their preparation.

Amide-substituted derivatives of spiroindanylcamphorsulfonyl oxytocin

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Lansdale, PA, United States of America

Doug W Hobbs