The United States of America As Represented by the Department of Health

National Institutes of Health, a Component of the US Dept. of Health & Human Services

Brown University

G.d. Searle & Company

National Institutes of Health

Pharmaceutical Discovery Corporation

Brian R De Costa

Kenner C Rice

Wayne D Bowen

Xiao-Shu He

Celia Dominguez

Lilian A Radesca

Andrew Y Thurkauf

Richard B Rothman

Arthur E Jacobson

Nancy M Gray

Michael J Iadarola

Patricia C Contreras

Karen F Berman

R Tyler McCabe

J Michael Walker

Certain aralkyl diazabicycloalkyl compounds are disclosed for treatment of CNS disorders, such as cerebral ischemia, psychosis, and convulsions. For example, compounds of interest are of the formula:

Aralkyl diazabicycloalkane derivatives for CNS disorders

Certain aralkyl diazabicycloalkyl compounds are disclosed for treatment of CNS disorders, such as cerebral ischemia, psychosis and convulsions. Compounds of particular interest are of the formula: ##STR1## wherein m is three or four; wherein z is selected from the group consisting of ##STR2## wherein when Z is ##STR3## n and p are integers of from one to four, with a sum of four or five, and when Z is ##STR4## n and p are integers of from one to three, with a sum of three or four; wherein A is selected from the group consisting of aryl, heteroaryl, aryloxy, heteroaryloxy, aralkoxy, heteroaralkoxy, arylamino, heteroarylamino, aralkylamino, heteroaralkylamino, arylthio, heteroarylthio, aralkylthio, and heteroaralkylthio; wherein any of the foregoing A groups can be further substituted with one or more substituents independently selected from the group consisting of hydrido, hydroxy, alkyl, cycloalkyl, cycloalkylalkyl, aralkyl, aryl, alkoxy, aryloxy, aralkoxy, alkoxyalkyl, halo, haloalkyl, hydroxyalkyl, cyano, amino, monoalkylamino, dialkylamino, carboxy, carboxyalkyl, alkanoyl, alkenyl and alkynyl; or a pharmaceutically acceptable salt thereof.

Certain nitrogen-containing cyclohetero cycloalkylaminoaryl compounds are described for treatment of CNS disorders such as cerebral ischemia, psychoses and convulsions. Compounds of particular interest are of the formula: ##STR1## wherein each of R.sup.1, R.sup.4, R.sup.5, R.sup.6 and R.sup.7 is independently selected from hydrido, lower alkyl, benzyl, and haloloweralkyl;

Nitrogen-containing cyclohetero cyclo-heteroaminoaryl derivatives for

Nitrogen-containing cyclohetero cycloalkylaminoaryl derivatives for CNS

Certain aralkyl diazabicycloalkyl compounds are described for treatment of CNS disorders such as cerebral ischemia, psychoses and convulsions. Compounds of particular interest are of the formula: ##STR1## wherein each of R, R.sup.1, R.sup.4, R.sup.5, R.sup.6 and R.sup.7 is independently selected from hydrido, lower-alkyl, benzyl, and haloloweralkyl; wherein each of R.sup.2, R.sup.3 and R.sup.10 through R.sup.13 is independently selected from hydrido, hydroxy, loweralkyl, benzyl, phenoxy, benzyloxy and haloloweralkyl; wherein each of R.sup.8 and R.sup.9 is selected from hydrido, loweralkyl, benzyl and haloloweralkyl; wherein m is an integer of from two to four; wherein A is selected from phenyl, naphthyl, benzothiophenyl, benzofuranyl and thienyl; wherein any of the foregoing A groups can be further substituted with one or more substituents independently selected from hydrido, hydroxy, loweralkyl, loweralkoxy, halo, haloloweralkyl, amino, monoloweralkylamino and diloweralkylamino; or a pharmaceutically acceptable salt thereof.

Aralkyl bridged diazabicycloalkane derivatives for CNS disorders

Certain aralkyl diazabicyloalkyl compounds are described for treatment of CNS disorders such as cerebral ischemia, psychoses and convulsions. Compounds of particular interest are of the formula: ##STR1## wherein: each of R.sup.1, R.sup.4, R.sup.5, R.sup.6 and R.sup.7 is independently selected from the group consisting of hydrido, loweralkyl, benzyl and haloloweralkyl;

Certain nitrogen-containing cyclohetero cycloalkylaminoaryl compounds are described for treatment of CNS disorders such as cerebral ischemia, psychoses and convulsions. Compounds of particular interest are of the formula: ##STR1## wherein each of R.sup.1, R.sup.4, R.sup.5, R.sup.6 and R.sup.7 is independently selected from hydrido, lower alkyl, benzyl, and haloloweralkyl; wherein each of R.sup.2, R.sup.3 and R.sup.8 through R.sup.11 is independently selected from hydrido, hydroxy, loweralkyl, benzyl, phenoxy, benzyloxy and haloloweralkyl; wherein n is an integer of from four to six; wherein m is an integer of from two to four; wherein A is selected from phenyl, naphthyl, benzothienyl, benzofuranyl and thienyl; wherein any of the foregoing A groups can be further substituted with one or more substituents independently selected from hydrido, hydroxy, loweralkyl, loweralkoxy, halo, haloloweralkyl, amino, monoloweralkylamino and diloweralkylamino; or a pharmaceutically acceptable salt thereof.

Nitrogen-containing cyclohetero cycloheteroaminoaryl derivatives for CNS

Compounds comprising a pyrrolidinyl ring are disclosed for use in the treatment of cerebral ischemia.

Nitrogen-containing cyclohetero alkylamino aryl derivatives for CNS

Conjugates of fluorescent labels with specific, selective, and high affinity ligands for receptors have been synthesized and used to directly measure binding to receptors. In the examples, fluorescein conjugates of the high-affinity benzodiazepine receptor ligands Ro 15-1788 and Ro 7-1986 were synthesized. The binding of these fluorescent ligands (BD 621, BD 623 and BD 607) to benzodiazepine receptors was characterized by direct fluorescence measurement. Both the equilibrium dissociation constants (K.sub.D) of BD 621 and BD 607 and the maximum number of binding sites (B.sub.max) estimated by fluorescence monitoring were consistent with values obtained by using radioligand binding techniques. The binding of BD 621 and BD 607 assessed by fluorescence measurement was reversible, abolished by photoaffinity labeling with Ro 15-4513, and unaffected by a variety of substances that do not bind to benzodiazepine receptors. The potencies of chemically diverse benzodiazepine receptor compounds to inhibit fluorescent ligand binding were highly correlated, with potencies obtained from radioligand binding techniques. These findings demonstrate that direct fluorescence measurement techniques can be used to quantitate ligand-receptor interactions.

Characterization of specific drug receptors with fluorescent ligands

The present invention is directed to radiolabeled N-substituted-6-iodo-3,14-dihydroxy-4,5.alpha.-epoxymorphinans, intermediates for producing the same, and a process for the preparation and methods of detecting opioid receptors. The radioimaging agent of the present invention has the following formula: ##STR1## wherein I is selected from the group consisting of .sup.123 L and .sup.125 ; and where R is alkyl, cycloalkylloweralkyl or allyl.

Radiolabeled n-substituted-6-iodo-3,14-dihydroxy-4,

The present invention is directed to radiolabeled N-substituted-6-iodo-3,14-dihydroxy-4,5.alpha.-epoxymorphinans, intermediates for producing the same, and a process for the preparation and methods of detecting opioid receptors. The radioimaging agent of the present invention has the following formula: ##STR1## wherein I is selected from the group consisting of .sup.123 I and .sup.125 I; and where R is alkyl, cycloalkylloweralkyl or allyl.

Radiolabeled

Certain nitrogen-containing cyclohetero cycloalkylaminoaryl compounds are described for treatment of CNS disorders such as cerebral ischemia, psychotic disorders and convulsions. Compounds of particular interest are of the formula ##STR1## wherein R.sup.1 is selected from hydrido, loweralkyl, cycloalkylalkyl of four to six carbon atoms, and loweralkenylloweralkyl; wherein each of R.sup.2 and R.sup.3 is independently selected from hydrido and loweralkyl; wherein each of R.sup.4 through R.sup.7, R.sup.10 and R.sup.11 is independently selected from hydrido, hydroxy, loweralkyl, benzyl, phenoxy, benzyloxy and haloloweralkyl; wherein n is a number selected from four through six; wherein p is a number selected from zero through four; wherein q is a number selected from three through five; wherein A is selected from phenyl, naphthyl and thienyl; wherein any of the foregoing A groups can be further substituted with one or more substituents independently selected from hydrido, hydroxy, loweralkyl, loweralkoxy, halo, haloloweralkyl, amino, monoloweralkylamino and diloweralkylamino; or a pharmaceutically acceptable salt thereof.

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Rockville, MD, United States of America

Brian R De Costa