Acf Chemiefarma N.v.

Antony M Akkerman

Hermanus C Van Bakel

Geertruida C Van Leeuwen

Henriette G Van Breevoort-Uurbanus

Paul A Janssen

Roelof C Smit

9,9-Dimethyl-6,7-benzomorphan derivatives having an oxygen-containing substituent on the nitrogen atom, optionally an alkyl or phenyl 5-substituent and optionally a hydroxy, alkoxy or acyloxy 2'-substituent have analgetic and/or morphine-antagonist properties.

Analgesic 9,9-dimethylbenzomorphanes

6,7-Benzomorphan derivatives of formula I, ##STR1## wherein R.sub.1 is hydrogen; optionally hydroxy- and/or alkoxy-substituted alkyl, alkenyl, alkynyl, cycloalkyl or cycloalkylalkyl; alkenyloxyalkyl, aralkyl, arylhydroxyalkyl, aralkenyl or tetrahydrofurylalkyl; or optionally alkyl-substituted furylalkyl or isoxazolylalkyl, R.sub.2 is hydrogen or methyl, R.sub.3 is hydrogen, alkyl, alkenyl, alkynyl, aralkyl, hydroxyalkyl of alkoxyalkyl and R.sub.4 is hydrogen, hydroxy, alkoxy or alkenyloxy, hydroxy groups in said compounds being each optionally acylated, having analgesic and luteinising hormone secretion inhibiting properties.

Analgesic 5-oxygenated-6,7-benzomorphan derivatives

The invention is concerned with certain new 6,7-benzomorphan derivatives having pharmacological, in particular analgesic and/or morphine-antagonistic properties, of the formula ##STR1## wherein R.sup.1 is a substituted or unsubstituted phenyl or heteroaryl group; R.sup.2 is a hydrogen or halogen atom, or a hydroxy, alkoxy or acyloxy group; R.sup.3 is an alkyl or alkenyl group; R.sup.4 is a hydrogen atom or a hydroxy, alkoxy or acyloxy group; and R.sup.5 is an alkyl group or, when R.sup.2 is hydrogen in a trans-position to R.sup.3, R.sup.5 is a hydrogen atom or an alkyl, alkenyl, alkinyl, cycloalkyl, cycloalkylalkyl, cycloalkenylalkyl, cyanoalkyl, hydroxyalkyl, alkoxyalkyl, or a substituted or unsubstituted phenylalkyl, heteroarylalkyl or heterocycloalkylalkyl group; optical isomers and pharmaceutically acceptable salts thereof. The preferred compound is the .alpha.-isomer of 2,5-dimethyl-2'-hydroxy-9-phenyl-6,7-benzomorphan, in particular its (+)-enantiomer. These compounds are prepared by total synthesis and are not derived from opium alkaloids.

Analgesic and morphine-antagonistic 6,7-benzomorphans

The invention is concerned with certain novel 6,7-benzomorphan derivatives having analgesic and/or morphine-antagonistic properties of the formula ##STR1## wherein each R is a lower alkyl group; R.sub.1 is a hydrogen atom, or an alkyl, haloalkyl, alkenyl, haloalkenyl, alkinyl, cycloalkyl, cycloalkenyl, cycloalkylalkyl, cycloalkenylalkyl, cycloalkylidenealkyl, aralkyl, heteroarylalkyl or heterocycloalkylalkyl group; R.sub.2 is a hydrogen atom or a hydroxy, alkoxy, alkoxyalkoxy or acyloxy group. Such 6,7-benzomorphans may be in the form of their optically active enantiomers and/or their therapeutically acceptable salts. Methods for producing such 6,7-benzomorphan derivatives, and novel intermediates useful for such production are also disclosed and form part of the invention.

5-Unsubstituted-9,9-dimethyl-6,7-benzomorphans

The invention is concerned with certain new 6,7-benzomorphan derivatives having pharmacological, in particular analgesic and/or morphine-antagonistic properties, of the formula ##STR1## wherein R.sup.1 is a substituted or unsubstituted phenyl or heteroaryl group; R.sup.2 is a hydrogen or halogen atom, or a hydroxy, alkoxy or acyloxy group; R.sup.3 is an alkyl or alkenyl group; R.sup.4 is a hydrogen atom or a hydroxy, alkoxy or acyloxy group; and R.sup.5 is an alkyl group or, when R.sup.2 is hydrogen in a trans-position to R.sup.3, R.sup.5 is a hydrogen atom or an alkyl, alkenyl, alkinyl, cycloalkyl, cycloalkylalkyl, cycloalkenylalkyl, cyanoalkyl, hydroxyalkyl, alkoxyalkyl, or a substituted or unsubstituted phenylalkyl, heteroarylalkyl or heterocycloalkylalkyl group; optical isomers and pharmaceutically acceptable sals thereof. The preferred compound is the .alpha.-isomer of 2,5-dimethyl- 2'-hydroxy-9-phenyl-6,7-benzomorphan, in particular its (+)-enantiomer. These compounds are prepared by total synthesis and are not derived from opium alkaloids.

Analgesic and morphine-antagonistic 9-phenyl-6,7-benzomorphans

Process for preparing 6,7-benzomorphans

6,7-BENZOMORPHAN DERIVATIVES HAVING ANALGESIC AND MORPHINE-ANTAGONISTIC PROPERTIES ARE OF THE FORMULA ##STR1## in which the substituents R are either lower alkyl groups or groups which, together with the carbon atom to which they are bonded, form a cycloaliphatic ring, and the substituents R.sub.1, R.sub.2 and R.sub. 3 may or may not be made and, if made, R.sub.1 represents either a hydrogen atom or an alkyl, haloalkyl, alkenyl, alkinyl, aralkyl, cycloalkenyl, cycloalkylalkyl, cycloalkenylalkyl or cycloalkylidine-alkyl group, R.sub. 2 is an alkyl, aryl, heteroaryl or aralkyl group, and R.sub. 3 is a hydrogen atom or an hydroxy, alkoxy, alkoxy-alkoxy or acyloxy group. Such 6,7-benzomorphans may be in the form of their optically active enantiomers and/or their therapeutically acceptable salts. There are also disclosed methods for producing such 6,7-benzomorphan derivatives, and intermediates useful in such production.

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Amsterdam, Netherlands

Antony M Akkerman