American Home Products Corporation

Ayerst, Mckenna & Harrison, Inc.

Thomas A Dobson

Leslie G Humber

Christopher A Demerson

Ivo L Jirkovsky

Andre A Asselin

George Santroch

Guenther Schilling

A process applicable to the preparation of a wide variety of novel polycyclic heterocycles having a newly-formed pyran ring is disclosed. According to the process an aromatic nucleus bearing an ethanol group, for example, 3,4-dimethoxyphenethyl alcohol, is condensed with an aldehyde or ketone or a protected aldehyde or ketone, for example, aminoactaldehyde diethyl acetal, in the presence of an acid catalyst to afford the polycyclic heterocycle, for example, 6,7-dimethoxy-1-isochromanmethylamine. The new heterocycles so formed are useful for preparing derivatives having antiinflammatory, antibacterial or antifungal activities.

Isochromans

Process for preparing polycyclic heterocycles having a pyran ring

Tricyclic alkylamines, and their acid addition salts with pharmaceutically acceptable acids, are disclosed. The tricyclic ring system for these compounds is selected from the group consisting of 1,2,3,4-tetrahydrocyclopent[b]indole, 1,2,3,4-tetrahydrocarbazole and 5,6,7,8,9,10-hexahydrocyclohept[b]indole. The compounds are characterized further in that the ring system carbon atom bearing the alkylamine residue is carbon atom 3, 1 and 6 in the respective ring systems and in each case the said carbon atom also is substituted with a lower alkyl. The tricyclic alkylamines are useful antidepressant agents. Methods for their preparation and use are disclosed.

Tricyclic alkylamine derivatives

Pyranoindole and thiopyranoindole derivatives characterized by having an amino(lower)alkyl radical attached to either or both the 1 and 9 position of a pyrano[3,4-b]indole or thiopyrano[3,4-b]indone nucleus are disclosed. The amino portion of the amino(lower)alkyl radical may be further substituted with one or two lower alkyl groups or incorporated into a heterocyclic amine radical. The derivatives having the amino(lower)alkyl radical only at position 1 are further substituted at position 1 and may be optionally substituted at positions 3, 4, 5, 6, 7, 8, and 9. The derivatives having the amino(lower)alkyl radical only at position 9 possess two substituents at position 1 and may be optionally substituted at position 3, 4, 5, 6, 7, and 8. The derivatives having an amino(lower)alkyl radical at both positions 1 and 9 are further substituted at position 1 and may be optionally substituted at positions 3, 4, 5, 6, 7 and 8. The pyrano- and thiopyranoindole derivatives of this invention are useful antidepressant and antiulcer agents. Methods for the preparation and use of these derivatives are also disclosed.

Pyrano- and thiopyranoindole derivatives

Indole derivatives characterized by having a 1,3,4,9-tetrahydropyrano[3,4-b]indole or 1,3,4,9-tetrahydrothiopyrano[3,4-b]indole nucleus bearing a substituent in position 1, said substituent incorporating an acid, ester or amide function therein, are disclosed. The nucleus is further substituted at position 1 and may be optionally substituted at positions 3, 4, 5, 6, 7, 8, and 9. The derivatives are useful antiinflammatory, analgesic, antibacterial and antifungal agents and methods for their preparation and use are also disclosed.

Pyrano[3,4-b]-indole derivatives, pharmaceutical compositions and

Derivatives of 1,3,4,9-tetrahydropyrano[3,4-b]indole-1-acetic acid

Pyranoindole and thiopyranoindole derivatives characterized by having an amino(lower)alkyl radical attached to either or both the 1 and 9 position of a pyrano[3,4-b]indole or thiopyrano[3,4-b]indole nucleus or having said radical attached to the 1 position of a pyrano[4,3-b]indole or thiopyrano[4,3-b]indole nucleus are disclosed. The amino portion of the amino(lower)alkyl radical may be further substituted with one or two lower alkyl groups or incorporated into a heterocyclic amine radical. The derivatives having the amino(lower)alkyl radical only at position 1 are further substituted at position 1 and may be optionally substituted at positions 3,4,5,6,7,8, and 9. The pyrano[3,4-b]indole or thiopyrano[3,4-b]indole derivatives having the amino(lower)alkyl radical only at position 9 possess two substitutents at position 1 and may be optionally substituted at position 3,4,5,6,7, and 8; the derivatives having an amino(lower)alkyl radical at both positions 1 and 9 are further substituted at position 1 and may be optionally substituted at positions 3,4,5,6,7 and 8. The pyrano-and thiopyranoindole derivatives of this invention are useful antidepressant and antiulcer agents. Methods for the preparation and use of these derivatives are also disclosed.

Pyranoindole derivatives as antiulcer agents

Pyranolindole and thiopyranoindole derivatives characterized by having an amino(lower)alkyl radical attached to either or both the 1 and 9 position of a pyrano[3,4-b]indole or thiopyrano[3,4-b]indole nucleus or having said radical attached to the 1 position of pyrano[4,3-b]indole or thiopyrano[4,3-b]indole nucleus are disclosed. The amino portion of the amino(lower)alkyl radical may be further substituted with one or two lower alkyl groups or incorporated into a heterocyclic amine radical. The derivatives having the amino(lower)alkyl radical only at position 1 are further substituted at position 1 and may be optionally substituted at positions 3,4,5,6,7,8, and 9. The pyrano[3,4-b]indole or thiopyrano[3,4-b]indole derivatives having the amino(lower)alkyl radical only at position 9 possess two substituents at position 1 and may be optionally substituted at position 3,4,5,6,7, and 8; the derivatives having an amino-(lower)alkyl radical at both positions 1 and 9 are further substituted at position 1 and may be optionally substituted at positions 3,4,5,6,7 and 8. The pyrano- and thiopyranindole derivatives of this invention are useful antidepressant and antiulcer agents. Methods for the preparation and use of these derivatives are also disclosed.

Pyranoindole derivatives, compositions and method of use

Thiazinoindole derivatives characterized by having an amino(lower)alkyl radical attached to the 1 position of a 1H-1,4-thiazino[4,3-a]indole nucleus are disclosed. The amino portion of the amino(lower)alkyl radical may be further substituted with one or two lower alkyl groups or incorporated in a heterocyclic amine radical. The derivatives are substituted further at positions 1 and 10 and may be optionally substituted at positions 3, 4, 6, 7, 8 and 9. The thiazinoindole derivatives of this invention are useful antidepressant and antiulcer agents. Methods for the use of these derivatives and compositions containing them are also disclosed.

Thiazinoindoles useful as antidepressants

Tetrahydrocyclopent[b]indole-3-acetic acid, tetrahydrocarbazole-1-acetic acid and hexahydrocyclohept[b]-indole-6-acetic acid derivatives in which the carbon bearing alkyl, lower alkenyl or lower cycloalkyl are disclosed. The compounds are useful antiinflammatory agents and methods for their preparation and use are described.

Carbazole acetic acid derivatives

Pyranoindole and thiopyranoindole derivatives characterized by having an amino(lower)alkyl radical attached to either or both the 1 and 9 position of a pyrano[3,4-b]indole or thiopyrano[3,4-b]indole nucleus are disclosed. The amino portion of the amino(lower)alkyl radical may be further substituted with one or two lower alkyl groups or incorporated into a heterocyclic amine radical. The derivatives having the amino(lower)alkyl radical only at position 1 are further substituted at position 1 and may be optionally substituted at positions 3, 4, 5, 6, 7, 8, and 9. The derivatives having the amino(lower)alkyl radical only at position 9 possess two substituents at position 1 and may be optionally substituted at position 3, 4, 5, 6, 7, and 8. The derivatives having an amino(lower)alkyl radical at both positions 1 and 9 are further substituted at position 1 and may be optionally substituted at positions 3, 4, 5, 6, 7 and 8. The pyrano- and thiopyranoindole derivatives of this invention are useful antidepressant and antiulcer agents. Methods for the preparation and use of these derivatives are also disclosed.

Process for making pyrano- and thiopyranoindole derivatives

Pyranoindole and thiopyranoindole derivatives characterized by having an amino(lower)alkyl radical attached to either or both the 1 and 9 position of a pyrano[ 3,4-b]indole or thiopyrano[3,4-b]indole nucleus are disclosed. The amino position of the amino(lower)alkyl radical may be further substituted with one or two lower alkyl groups or incorporated into a heterocyclic amine radical. The derivatives having the amino(lower)alkyl radical only at position 1 are further substituted at position 1 and may be optionally substituted at positions 3, 4, 5, 6, 7, 8, and 9. The derivatives having the amino(lower)alkyl radical only at position 9 posses two substituents at position 1 and may be optionally substituted at position 3, 4, 5, 6, 7, and 8. The derivatives having an amino(lower)alkyl radical at both positions 1 and 9 are further substituted at position 1 and may be optionally substituted at positions 3, 4, 5, 6, 7 and 8. The pyrano- and thiopyranoindole derivatives of this invention are useful antidepressant and antiulcer agents. Methods for the preparation and use of these derivatives are also disclosed.

Process for preparing pyrano- and thiopyranoindole derivatives

Pyranoindole and thiopyranoindole derivatives characterized by having an amino(lower)alkyl radical attached to either or both the 1 and 9 position of a pyrano[3,4-b]indole or thiopyrano[3,4-b]indole nucleus or having said radical attached to the 1 position of a pyrano[4,3-b]indole or thiopyrano[4,3-b]indole nucleus are disclosed. The amino portion of the amino(lower)alkyl radical may be further substituted with one or two lower alkyl groups or incorporated into a heterocyclic amine radical. The derivatives having the amino(lower)alkyl radical only at position 1 are further substituted at position 1 and may be optionally substituted at positions 3,4,5,6,7,8, and 9. The pyrano[3,4-b]indole or thiopyrano[3,4-b]indole derivatives having the amino(lower)alkyl radical only at position 9 possess two substituents at position 1 and may be optionally substituted at position 3,4,5,6,7, and 8; the derivatives having an amino(lower)alkyl radical at both positions 1 and 9 are further substituted at position 1 and may be optionally substituted at positions 3,4,5,6,7 and 8. The pyrano- and thiopyranoindole derivatives of this invention are useful antidepressant and antiulcer agents. Methods for the preparation and use of these derivatives are also disclosed.

Pharmaceutical method for using pyrano-and thiopyranoindole derivatives

A process applicable to the preparation of a wide variety of novel polycyclic heterocycles having a newly formed pyran ring is disclosed. According to the process an aromatic nucleus bearing an ethanol group, for example, 3,4-dimethoxyphenethyl alcohol, is condensed with an aldehyde or ketone or a protected aldehyde or ketone, for example, aminoactaldehyde diethyl acetal, in the presence of an acid catalyst to afford the polycyclic heterocycle, for example, 6,7-dimethoxy-l-isochromanmethylamine. The new heterocycles so formed are useful for preparing derivatives having antiinflammatory, antibacterial or antifungal activities.

Growing community of inventors

Dollard des Ormeaux, Canada

Thomas A Dobson