Patents by Inventor Rodney I. Fryer
Rodney I. Fryer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 4549988Abstract: There is presented 3H-2-benzazepines and 4,5-dihydro-3H-2-benzazepines of the formula ##STR1## wherein X is hydrogen, chloro or bromo, Y is hydrogen, fluoro or chloro with the proviso that X and Y cannot both be hydrogen and R.sub.1 is selected from the group consisting of hydrogen, bromo, chloro, iodo, a radical of the formula ##STR2## and a radical of the formula ##STR3## wherein R.sub.2 is hydrogen, phthalimido, lower alkyl, hydroxy, amino, monoalkylamino and dialkylamino and R.sub.3 is hydroxy, phthalimido or amino with the proviso that where R.sub.1 is other than hydrogen then the bonding at the 4,5-position is unsaturated,and the pharmaceutically acceptable salts thereof.Type: GrantFiled: June 29, 1983Date of Patent: October 29, 1985Assignee: Hoffmann-La Roche Inc.Inventors: Rodney I. Fryer, Eugene J. Trybulski, Armin Walser
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Patent number: 4548750Abstract: There is presented a compound of the formula ##STR1## wherein R.sub.1 is selected from the group consisting of hydrogen, lower alkyl, chloro, bromo, alkoxy, hydroxy, lower alkyl substituted thio and NR.sub.4 R.sub.5 wherein R.sub.4 and R.sub.5 are hydrogen, lower alkyl and di-substituted lower alkylamino lower alkyl; R.sub.2 is selected from the group consisting of hydrogen, lower alkyl and amino; R.sub.3 is selected from the group consisting of hydrogen, acyloxy and hydroxy; X is halogen and Y is hydrogen or halogen and the N-oxides thereof when R.sub.3 is hydrogenand the pharmaceutically acceptable salts thereof.The pyrimido[4,5-d][2]benzazepines are useful as anxiolytic and sedative agents.Also presented are processes and intermediates in the production of the above pyrimido[4,5-d][2]benzazepines.Type: GrantFiled: October 17, 1983Date of Patent: October 22, 1985Assignee: Hoffmann-La Roche Inc.Inventors: Rodney I. Fryer, Eugene J. Trybulski, Armin Walser
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Patent number: 4547581Abstract: There is presented compounds of the formula ##STR1## wherein A is selected from the group consisting of ##STR2## R.sub.1 is selected from the group consisting of hydrogen, chlorine, bromine, lower alkyl, the group NR.sub.4 R.sub.5, the group --CH.sub.2 --CO--R.sub.7, the group --NH(CH.sub.2).sub.m NR.sub.8 R.sub.9, hydroxy, lower alkoxy, mercapto and lower alkyl mercapto; R.sub.2 is selected from the group consisting of hydrogen, amino and di-lower alkyl amino; R.sub.3 is selected from the group consisting of hydrogen, lower acyloxy and hydroxy; X is selected from the group consisting of hydrogen, halogen, trifluoromethyl, ethyl, .alpha.-hydroxy ethyl and acetyl; Y is hydrogen or halogen; R.sub.4 and R.sub.5 are hydrogen or lower alkyl or together with their co-bonded nitrogen atom form a five to seven membered heterocyclic group; R.sub.7 is selected from the group consisting of hydroxy lower alkoxy and NR.sub.8 R.sub.9 ; R.sub.8 and R.sub.Type: GrantFiled: August 23, 1984Date of Patent: October 15, 1985Assignee: Hoffmann-La Roche Inc.Inventors: Rodney I. Fryer, Norman W. Gilman, Eugene J. Trybulski, Armin Walser
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Patent number: 4546183Abstract: There is presented compounds of the formula ##STR1## wherein A is selected from the group consisting of ##STR2## R.sub.1 is selected from the group consisting of hydrogen, chlorine, bromine, lower alkyl, the group NR.sub.4 R.sub.5, the group --CH.sub.2 --CO--R.sub.7, the group --NH(CH.sub.2).sub.m NR.sub.8 R.sub.9, hydroxy, lower alkoxy, mercapto and lower alkyl mercapto; R.sub.2 is selected from the group consisting of hydrogen, amino and di-lower alkyl amino; R.sub.3 is selected from the group consisting of hydrogen, lower acyloxy and hydroxy; X is selected from the group consisting of hydrogen, halogen, trifluoromethyl, ethyl, .alpha.-hydroxy ethyl and acetyl; Y is hydrogen or halogen; R.sub.4 and R.sub.5 are hydrogen or lower alkyl or together with their co-bonded nitrogen atom form a five to seven membered heterocyclic group; R.sub.7 is selected from the group consisting of hydroxy lower alkoxy and NR.sub.8 R.sub.9 ; R.sub.8 and R.sub.Type: GrantFiled: August 23, 1984Date of Patent: October 8, 1985Assignee: Hoffmann-La Roche Inc.Inventors: Rodney I. Fryer, Norman W. Gilman, Eugene J. Trybulski, Armin Walser
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Patent number: 4481142Abstract: There is presented compounds of the formula ##STR1## wherein A is selected from the group consisting of ##STR2## R.sub.1 is selected from the group consisting of hydrogen, chlorine, bromine, lower alkyl, the group NR.sub.4 R.sub.5, the group --CH.sub.2 --CO--R.sub.7, the group--NH(CH.sub.2).sub.m NR.sub.8 R.sub.9, hydroxy, lower alkoxy, mercapto and lower alkyl mercapto; R.sub.2 is selected from the group consisting of hydrogen, amino and dilower alkyl amino; R.sub.3 is selected from the group consisting of hydrogen, lower acyloxy and hydroxy; X is selected from the group consisting of hydrogen, halogen, trifluoromethyl, ethyl, .alpha.-hydroxy ethyl and acetyl; Y is hydrogen or halogen; R.sub.4 and R.sub.5 are hydrogen or lower alkyl or together with their co-bonded nitrogen atom form a five to seven membered heterocyclic group; R.sub.7 is selected from the group consisting of hydroxy lower alkoxy and NR.sub.8 R.sub.9 ; R.sub.8 and R.sub.Type: GrantFiled: October 27, 1982Date of Patent: November 6, 1984Assignee: Hoffmann-La Roche Inc.Inventors: Rodney I. Fryer, Norman W. Gilman, Eugene J. Trybulski, Armin Walser
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Patent number: 4460781Abstract: There are presented compounds of the formula ##STR1## wherein R.sub.1 is hydrogen or lower alkyl; R.sub.6 is halo and R.sub.5 is hydrogen or halo; and compounds of the formulas ##STR2## wherein R.sub.2 and R.sub.3 are selected from the group consisting of hydrogen, lower alkyl, C.sub.2 to C.sub.7 carboxylic acids, hydroxy C.sub.2 to C.sub.7 alkyl, C.sub.2 to C.sub.7 carboxylic acid esters and amides and the group COR.sub.11 wherein R.sub.11 and is selected from the group consisting of alkoxy, amino or mono-lower alkyl amino; R.sub.35 is hydrogen or lower alkyl; R.sub.5 is hydrogen or halo; and R.sub.7 is methyl or chloromethyl, all of which are useful in the preparation of pyrazolobenzazepines.Type: GrantFiled: January 5, 1983Date of Patent: July 17, 1984Assignee: Hoffmann-La Roche Inc.Inventors: George F. Field, Rodney I. Fryer, Eugene J. Trybulski, Armin Walser
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Patent number: 4440685Abstract: Novel Imidazobenzodiazepines and their analogs are useful as anticonvulsants, muscle relaxant, anxiolytic and sedative agents. Preferred compounds of this class belong to the imidazo[1,5-a] [1,4] diazepine series which may have a very wide variety of organic substituents. An especially preferred genus included with the purview of the invention encompasses a compound of the formula ##STR1## wherein R.sub.1 is hydrogen and lower alkyl, preferably methyl; R.sub.3 and R.sub.5 are hydrogen; R.sub.4 is hydrogen, nitro or halogen, most preferably, chlorine, and in a most preferred embodiment when positioned on the fused benzo portion of the imidazobenzodiazepine is in the 8-position thereof; R.sub.6 is phenyl or halo, nitro, or lower alkyl-substituted phenyl, preferably, halo, with fluorine being the preferred halogen, the substituted fluoro being positioned in the 2-position of the phenyl moiety; and R.sub.2 is hydrogen and lower alkyl.Type: GrantFiled: June 16, 1983Date of Patent: April 3, 1984Assignee: Hoffmann-La Roche Inc.Inventors: Armin Walser, Rodney I. Fryer
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Patent number: 4436662Abstract: The present invention relates to compounds of the formula ##STR1## wherein R.sub.1 and R.sub.3 are selected from the group consisting of hydrogen, lower alkyl, hydroxy, lower alkoxy or acyloxy and R.sub.2 and R.sub.4 are hydrogen or R.sub.1 and R.sub.2 and/or R.sub.3 and R.sub.4 taken together are oxo groups with the proviso that at least one oxo group is present; R is selected from the group consisting of hydrogen, lower alkyl, C.sub.2 to C.sub.7 carboxylic acids and the esters and amides thereof, hydroxy C.sub.2 to C.sub.7 alkyl and amino C.sub.2 to C.sub.7 alkyl or mono- or di-lower alkyl amino C.sub.2 to C.sub.7 alkyl; R.sub.5 is halogen or hydrogen; and R.sub.6 is halogen with the proviso that when R.sub.1 or R.sub.3 is hydroxy, lower alkoxy or acyloxy, then R is lower alkyl or hydrogen and the N-oxides and the pharmaceutically acceptable salts thereof.Type: GrantFiled: March 31, 1983Date of Patent: March 13, 1984Assignee: Hoffmann-La Roche Inc.Inventors: Rodney I. Fryer, Eugene J. Trybulski, Armin Walser
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Patent number: 4431823Abstract: The present invention relates to compounds of the formula ##STR1## wherein R.sub.1 is selected from the group consisting of hydrogen, lower alkyl, C.sub.3 to C.sub.7 alkenyl or alkynyl, hydroxymethyl, the ##STR2## wherein R.sub.11 is hydrogen, hydroxy, alkoxy, amino and mono- or di-lower alkylamino; and R.sub.3 is selected from the group consisting of hydrogen, lower alkyl, C.sub.3 to C.sub.7 alkenyl or alkynyl, hydroxymethyl, the ##STR3## wherein R.sub.11 is hydrogen, hydroxy, trihalomethyl, alkoxy, amino and mono- or di-lower alkylamino; R.sub.2 is selected from the group consisting of hydrogen, lower alkyl, C.sub.3 to C.sub.7 alkenyl or alkynyl, the ##STR4## C.sub.2 to C.sub.7 carboxylic acids and the esters and amides thereof, hydroxy C.sub.2 to C.sub.7 alkyl and amino or mono- or di-lower alkyl amino C.sub.2 to C.sub.7 alkyl; R.sub.4 is selected from the group consisting of hydrogen, acyloxy, straight chain lower alkoxy and hydroxy; R.sub.5 is halogen or hydrogen; R.sub.Type: GrantFiled: August 3, 1982Date of Patent: February 14, 1984Assignee: Hoffmann-La Roche Inc.Inventors: Rodney I. Fryer, Eugene J. Trybulski, Armin Walser
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Patent number: 4428878Abstract: The present invention relates to compounds of the formula ##STR1## wherein R.sub.1 is selected from the group consisting of hydrogen, lower alkyl, C.sub.3 to C.sub.7 alkenyl or alkynyl, hydroxymethyl, the group ##STR2## wherein R.sub.11 is hydrogen, hydroxy, alkoxy, amino and mono- or di-lower alkylamino; and R.sub.3 is selected from the group consisting of hydrogen, lower alkyl, C.sub.3 to C.sub.7 alkenyl or alkynyl, hydroxymethyl, the group ##STR3## wherein R.sub.11 is hydrogen, hydroxy, trihalomethyl, alkoxy, amino and mono- or di-lower alkylamino; R.sub.2 is selected from the group consisting of hydrogen, lower alkyl, C.sub.3 to C.sub.7 alkenyl or alkynyl, the group ##STR4## C.sub.2 to C.sub.7 carboxylic acids and the esters and amides thereof, hydroxy C.sub.2 to C.sub.7 alkyl and amino or mono- or di-lower alkyl amino C.sub.2 to C.sub.7 alkyl; R.sub.4 is selected from the group consisting of hydrogen, acyloxy, straight chain lower alkoxy and hydroxy; R.sub.5 is halogen or hydrogen; R.sub.Type: GrantFiled: August 3, 1982Date of Patent: January 31, 1984Assignee: Hoffmann-La Roche Inc.Inventors: Rodney I. Fryer, Eugene J. Trybulski, Armin Walser
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Patent number: 4428879Abstract: The present invention relates to compounds of the formula ##STR1## wherein R.sub.1 is selected from the group consisting of hydrogen, lower alkyl, C.sub.3 to C.sub.7 alkenyl or alkynyl, hydroxymethyl, the group ##STR2## wherein R.sub.11 is hydrogen, hydroxy, alkoxy, amino and mono- or di-lower alkylamino; and R.sub.3 is selected from the group consisting of hydrogen, lower alkyl, C.sub.3 to C.sub.7 alkenyl or alkynyl, hydroxymethyl, the group ##STR3## wherein R.sub.11 is hydrogen, hydroxy, trihalomethyl, alkoxy, amino and mono- or di-lower alkylamino; R.sub.2 is selected from the group consisting of hydrogen, lower alkyl, C.sub.3 to C.sub.7 alkenyl or alkynyl, the group ##STR4## C.sub.2 to C.sub.7 carboxylic acids and the esters and amides thereof, hydroxy C.sub.2 to C.sub.7 alkyl and amino or mono- or di- lower alkyl amino C.sub.2 to C.sub.7 alkyl; R.sub.4 is selected from the group consisting of hydrogen , acyloxy, straight chain lower alkoxy and hydroxy; R.sub.5 is halogen or hydrogen; R.sub.Type: GrantFiled: August 3, 1982Date of Patent: January 31, 1984Assignee: Hoffmann-La Roche Inc.Inventors: Rodney I. Fryer, Eugene J. Trybulski, Armin Walser
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Patent number: 4427589Abstract: There is presented a compound of the formula ##STR1## wherein R.sub.1 is selected from the group consisting of hydrogen, lower alkyl, chloro, bromo, alkoxy, hydroxy, lower alkyl substituted thio and NR.sub.4 R.sub.5 wherein R.sub.4 and R.sub.5 are hydrogen, lower alkyl and di-substituted lower alkylamino lower alkyl;R.sub.2 is selected from the group consisting of hydrogen, lower alkyl and amino;R.sub.3 is selected from the group consisting of hydrogen, acyloxy and hydroxy;X is halogen and Y is hydrogen or halogen and the N-oxides thereof when R.sub.3 is hydrogenand the pharmaceutically acceptable salts thereof.The pyrimido[4,5-d][2]benzazepines are useful as anxiolytic and sedative agents.Also presented are processes and intermediates in the production of the above pyrimido[4,5-d][2]benzazepines.Type: GrantFiled: July 23, 1981Date of Patent: January 24, 1984Assignee: Hoffmann-La Roche Inc.Inventors: Rodney I. Fryer, Eugene J. Trybulski, Armin Walser
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Patent number: 4425272Abstract: Novel imidazobenzodiazepines and their analogs are useful as anticonvulsants, muscle relaxant, anxiolytic and sedative agents. Preferred compounds of this class belong to the imidazo[1,5-a][1,4] diazepine series which may have a very wide variety of organic substituents. An especially preferred genus included with the purview of the invention encompasses a compound of the formula ##STR1## wherein R.sub.1 is hydrogen and lower alkyl, preferably methyl; R.sub.3 and R.sub.5 are hydrogen; R.sub.4 is hydrogen, nitro or halogen, most preferably, chlorine, and in a most preferred embodiment when positioned on the fused benzo portion of the imidazobenzodiazepine is in the 8-position thereof; R.sub.6 is phenyl or halo, nitro, or lower alkyl-substituted phenyl, preferably, halo, with fluorine being the preferred halogen, the substituted fluoro being positioned in the 2-position of the phenyl moiety; and R.sub.2 is hydrogen and lower alkyl.Type: GrantFiled: March 12, 1981Date of Patent: January 10, 1984Assignee: Hoffmann-La Roche Inc.Inventors: Armin Walser, Rodney I. Fryer
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Patent number: 4409390Abstract: The present invention relates to compounds of the formula ##STR1## wherein R.sub.1 is selected from the group consisting of hydrogen, lower alkyl, C.sub.3 to C.sub.7 alkenyl or alkynyl, hydroxymethyl, the group ##STR2## wherein R.sub.11 is hydrogen, hydroxy, alkoxy, amino and mono- or di-lower alkylamino; and R.sub.3 is selected from the group consisting of hydrogen, lower alkyl, C.sub.3 to C.sub.7 alkenyl or alkynyl, hydroxymethyl, the group ##STR3## wherein R.sub.11 is hydrogen, hydroxy, trihalomethyl, alkoxy, amino and mono- or di-lower alkylamino; R.sub.2 is selected from the group consisting of hydrogen, lower alkyl, C.sub.3 to C.sub.7 alkenyl or alkynyl, the group ##STR4## C.sub.2 to C.sub.7 carboxylic acids and the esters and amides thereof, hydroxy C.sub.2 to C.sub.7 alkyl and amino or mono- or di-lower alkyl amino C.sub.2 to C.sub.7 alkyl; R.sub.4 is selected from the group consisting of hydrogen, acyloxy, straight chain lower alkoxy and hydroxy; R.sub.5 is halogen or hydrogen; R.sub.Type: GrantFiled: August 3, 1982Date of Patent: October 11, 1983Assignee: Hoffmann-La Roche Inc.Inventors: Rodney I. Fryer, Eugene J. Trybulski, Armin Walser
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Patent number: 4405518Abstract: The present invention relates to compounds of the formula ##STR1## wherein R.sub.1 is selected from the group consisting of hydrogen, lower alkyl, C.sub.3 to C.sub.7 alkenyl or alkynyl, hydroxymethyl, the group ##STR2## wherein R.sub.11 is hydrogen, hydroxy, alkoxy, amino and mono- or di-lower alkylamino; and R.sub.3 is selected from the group consisting of hydrogen, lower alkyl, C.sub.3 to C.sub.7 alkenyl or alkynyl, hydroxymethyl, the group ##STR3## wherein R.sub.11 is hydrogen, hydroxy, trihalomethyl, alkoxy, amino and mono- or di-lower alkylamino; R.sub.2 is selected from the group consisting of hydrogen, lower alkyl, C.sub.3 to C.sub.7 alkenyl or alkynyl, the group ##STR4## C.sub.2 to C.sub.7 carboxylic acids and the esters and amides thereof, hydroxy C.sub.2 to C.sub.7 alkyl and amino or mono- or di-lower alkyl amino C.sub.2 to C.sub.7 alkyl; R.sub.4 is selected from the group consisting of hydrogen, acyloxy, straight chain lower alkoxy and hydroxy; R.sub.5 is halogen or hydrogen; R.sub.Type: GrantFiled: August 2, 1982Date of Patent: September 20, 1983Assignee: Hoffmann-La Roche Inc.Inventors: Rodney I. Fryer, Eugene J. Trybulski, Armin Walser
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Patent number: 4401597Abstract: Novel immidazobenzodiazepines and their analogs are useful as anticonvulsants, muscle relaxant, anxiolytic and sedative agents. Preferred compounds of this class belong to the imidazo[1,5-a][1,4]diazepine series which may have a very wide variety of organic substituents. An especially preferred genus included with the purview of the invention encompasses a compound of the formula ##STR1## wherein R.sub.1 is hydrogen and lower alkyl, preferably methyl; R.sub.3 and R.sub.5 are hydrogen; R.sub.4 is hydrogen, nitro or halogen, most preferably, chlorine, and in a most preferred embodiment when positioned on the fused benzo portion of the imidazobenzodiazepine is in the 8-position thereof; R.sub.6 is phenyl or halo, nitro, or lower alkyl-substituted phenyl, preferably, halo, with fluorine being the preferred halogen, the substituted fluoro being positioned in the 2-position of the phenyl moiety; and R.sub.2 is hydrogen and lower alkyl.Type: GrantFiled: March 12, 1981Date of Patent: August 30, 1983Assignee: Hoffmann-La Roche Inc.Inventors: Armin Walser, Rodney I. Fryer
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Patent number: 4390471Abstract: Novel Imidazobenzodiazepines and their analogs are useful as anticonvulsants, muscle relaxant, anxiolytic and sedative agents. Preferred compounds of this class belong to the imidazo[1,5-a][1,4]diazepine series which may have a very wide variety of organic substituents. An especially preferred genus included with the purview of the invention encompasses a compound of the formula ##STR1## wherein R.sub.1 is hydrogen and lower alkyl, preferably methyl; R.sub.3 and R.sub.5 are hydrogen; R.sub.4 is hydrogen, nitro or halogen, most preferably, chlorine, and in a most preferred embodiment when positioned on the fused benzo portion of the imidazobenzodiazepine is in the 8-position thereof; R.sub.6 is phenyl or halo, nitro, or lower alkylsubstituted phenyl, preferably, halo, with fluorine being the preferred halogen, the substituted fluoro being positioned in the 2-position of the phenyl moiety; and R.sub.2 is hydrogen and lower alkyl.Type: GrantFiled: March 12, 1981Date of Patent: June 28, 1983Assignee: Hoffmann-La Roche Inc.Inventors: Armin Walser, Rodney I. Fryer
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Patent number: 4379765Abstract: There are presented compounds of the formulas ##STR1## wherein R.sub.1 is hydrogen or lower alkyl; R.sub.2 and R.sub.3 are selected from the group consisting of hydrogen, lower alkyl, C.sub.2 to C.sub.7 carboxylic acids, hydroxy C.sub.2 to C.sub.7 alkyl, C.sub.2 to C.sub.7 carboxylic acid esters and amides and the group COR.sub.11 wherein R.sub.11 is alkoxy, amino or mono- lower alkyl amino; R.sub.6 is nitro or halo and R.sub.5 is hydrogen or halo,and the pharmaceutically acceptable salts thereof.The pyrazolobenzazepines are useful as anxiolytic and sedative agents.Also provided are processes and intermediates in the production of the above pyrazolobenzazepines.Type: GrantFiled: July 23, 1981Date of Patent: April 12, 1983Assignee: Hoffmann-La Roche Inc.Inventors: George F. Field, Rodney I. Fryer, Eugene J. Trybulski, Armin Walser
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Patent number: 4377523Abstract: Novel Imidazobenzodiazepines and their analogs are useful as anticonvulsants, muscle relaxant, anxiolytic and sedative agents. Preferred compounds of this class belong to the imidazo[1,5-a][1,4]diazepine series which may have a very wide variety of organic substituents. An especially preferred genus included within the purview of the invention encompasses a compound of the formula ##STR1## wherein R.sub.1 is hydrogen and lower alkyl preferably methyl; R.sub.3 and R.sub.5 are hydrogen; R.sub.4 is hydrogen, nitro and halogen, most preferably, chlorine, and in a most preferred embodiment when positioned on the fused benzo portion of the imidazobenzodiazepine is in the 8-position thereof, R.sub.6 is phenyl or halo, nitro, or lower alkyl-substituted phenyl, preferably, halo, with fluorine being the preferred halogen, the substituted fluoro being positioned in the 2-position of the phenyl moiety and R.sub.2 is hydrogen and lower alkyl.Type: GrantFiled: March 12, 1981Date of Patent: March 22, 1983Assignee: Hoffmann-La Roche Inc.Inventors: Armin Walser, Rodney I. Fryer
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Patent number: 4376074Abstract: Novel Imidazobenzodiazepines and their analogs are useful as anticonvulsants, muscle relaxant, anxiolytic and sedative agents. Preferred compounds of this class belong to the imidazo[1,5-a][1,4]diazepine series which may have a very wide variety of organic substituents. An especially preferred genus included within the purview of the invention encompasses a compound of the formula ##STR1## wherein R.sub.1 is hydrogen and lower alkyl preferably methyl; R.sub.3 and R.sub.5 are hydrogen; R.sub.4 is hydrogen, nitro and halogen, most preferably, chlorine, and in a most preferred embodiment when positioned on the fused benzo portion of the imidazobenzodiazepine is in the 8-position thereof, R.sub.6 is phenyl or halo, nitro, or lower alkyl-substituted phenyl, preferably, halo, with fluorine being the preferred halogen, the substituted fluoro being positioned in the 2-position of the phenyl moiety and R.sub.2 is hydrogen and lower alkyl.Type: GrantFiled: March 12, 1981Date of Patent: March 8, 1983Assignee: Hoffmann-La Roche Inc.Inventors: Armin Walser, Rodney I. Fryer