Patents by Inventor Reinhardt P. Stein
Reinhardt P. Stein 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: 5773458Abstract: The compound of the formula: ##STR1## where R is H, alkyl, haloalkyl, cycloalkyl, alkenyl or alkynyl; Y is oxygen, sulfur or NR.sub.2 where R.sub.2 is H or alkyl; or a pharmaceutically acceptable salt thereof, are centrally active muscarinic agents.Type: GrantFiled: October 17, 1997Date of Patent: June 30, 1998Assignee: American Home Products CorporationInventors: Annmarie L. Sabb, Reinhardt P. Stein
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Patent number: 5668144Abstract: The compounds of the formula: ##STR1## where R is H, alkyl, haloalkyl, cycloalkyl, alkenyl or alkynyl; Y is oxygen, sulfur or NR.sub.2 where R.sub.2 is H or alkyl; or a pharmaceutically acceptable salt thereof, are useful centrally active muscarinic agents.Type: GrantFiled: October 30, 1996Date of Patent: September 16, 1997Assignee: American Home Products CorporationInventors: Annmarie L. Sabb, Reinhardt P. Stein
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Patent number: 5468875Abstract: The compound of the formula: ##STR1## where R is H, alkyl, haloalkyl, cycloalkyl, alkenyl or alkynyl; Y is oxygen, sulfur or NR.sub.2 where R.sub.2 is H or alkyl; or a pharmaceutically acceptable salt thereof, are centrally active muscarinic agents.Type: GrantFiled: December 22, 1994Date of Patent: November 21, 1995Assignee: American Home Products CorporationInventors: Annmarie L. Sabb, Reinhardt P. Stein
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Patent number: 4672117Abstract: The compounds: ##STR1## in which R.sup.1 is hydrogen, halogen, hydroxy, or alkyl;R.sup.2 is substituted or unsubstituted pyridinyl, pyrazinyl, quinolinyl or quinoxalinyl and said substituents are alkyl, alkoxy, alkoxycarbonyl, halogen, cyano or nitro;R.sup.5 and R.sup.6 are, independently, hydrogen, alkyl, phenyl, halophenyl, methylphenyl, trifluoromethylphenyl, cyanophenyl or nitrophenyl; with the proviso that one of R.sup.5 and R.sup.6 is other than hydrogen;and n is an integer from 1 to 7;or a pharmaceutically acceptable salt thereof, are antipsychotic and anxiolytic agents.Type: GrantFiled: September 16, 1985Date of Patent: June 9, 1987Assignee: American Home Products CorporationInventors: Magid A. Abou-Gharbia, Usha R. Patel, Reinhardt P. Stein
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Patent number: 4446322Abstract: This application provides a novel process for the synthesis of 3-(2-hydroxy-2-phenylethyl)-N-[(phenylamino)carbonyl]sydnonimine derivatives and novel hydrophobic and hydrophilic acyl derivatives thereof as pro-drug central nervous system stimulants.Type: GrantFiled: October 2, 1980Date of Patent: May 1, 1984Assignee: American Home Products CorporationInventor: Reinhardt P. Stein
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Patent number: 4374779Abstract: The disclosed [[2-(substituted amino)-2-phenylethyl]nitrosoamino]acetonitrile derivatives and the ring closed oxadiazolium salts thereof as well as their pharmaceutically acceptable acid addition salts are antihypertensive agents useful in the treatment of hypertension.Type: GrantFiled: November 16, 1981Date of Patent: February 22, 1983Assignee: American Home Products CorporationInventor: Reinhardt P. Stein
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Patent number: 4371539Abstract: 3-[Methyl(phenylmethyl)amino]-N-[(phenylamino)carbonyl]sydnone imine or a pharmaceutically acceptable salt thereof serve as central nervous system stimulants with much less sympathomimetic activity than is found in amphetamine like stimulants.Type: GrantFiled: April 27, 1981Date of Patent: February 1, 1983Assignee: American Home Products CorporationInventor: Reinhardt P. Stein
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Patent number: 4371697Abstract: A compound of the formula: ##STR1## in which R.sup.1 and R.sup.2 are, independently, hydrogen, alkyl of 1 to 6 carbon atoms, alkoxy of 1 to 6 carbon atoms, halo, perfluoroalkyl of 1 to 3 carbon atoms, nitro, alkanoyl of 2 to 4 carbon atoms or alkoxycarbonyl of 2 to 4 carbon atoms;R.sup.3 is hydrogen, halo, nitro or alkanoyl of 2 to 4 carbon atoms;R.sup.4 is hydrogen, halo, nitro or perfluoroalkyl of 1 to 3 carbon atoms;R.sup.5 and R.sup.6 are, independently, hydrogen, methyl or ethyl;or a non-toxic acid addition salt thereof, are central nervous system stimulants.Type: GrantFiled: October 6, 1980Date of Patent: February 1, 1983Assignee: American Home Products CorporationInventor: Reinhardt P. Stein
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Patent number: 4324897Abstract: The disclosed [[2-(substituted amino)-2-phenylethyl]-nitrosoamino]acetonitrile derivatives and the ring closed oxadiazolium salts thereof as well as their pharmaceutically acceptable acid addition salts are antihypertensive agents useful in the treatment of hypertension.Type: GrantFiled: May 18, 1981Date of Patent: April 13, 1982Assignee: American Home Products CorporationInventor: Reinhardt P. Stein
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Patent number: 4301285Abstract: This application provides a novel process for the synthesis of 3-[1(hydroxymethyl)-2-phenylethyl]-N-[(phenylamino)carbonyl]sydnonimine derivatives and novel hydrophobic and hydrophilic acyl derivatives thereof as pro-drug central nervous system stimulants.Type: GrantFiled: October 2, 1980Date of Patent: November 17, 1981Assignee: American Home Products CorporationInventor: Reinhardt P. Stein
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Patent number: 4289885Abstract: A compound of the formula: ##STR1## in which R.sup.1 and R.sup.2 are, independently, hydrogen, alkyl of 1 to 6 carbon atoms, alkoxy of 1 to 6 carbon atoms, halo, perfluoroalkyl of 1 to 3 carbon atoms, nitro, alkanoyl of 2 to 4 carbon atoms or alkoxycarbonyl of 2 to 4 carbon atoms;R.sup.3 is hydrogen, halo, nitro or alkanoyl of 2 to 4 carbon atoms;R.sup.4 is hydrogen, halo, nitro or perfluoroalkyl of 1 to 3 carbon atoms;R.sup.5 and R.sup.6 are, independently, hydrogen or methyl; andR.sup.7 and R.sup.8 are, independently, alkyl of 1 to 4 carbon atoms, or when taken with the nitrogen atom to which they are attached form a piperidinyl, pyrolidinyl, morpholinyl, N-alkyl piperazinyl in which the alkyl group contains from 1 to 6 carbon atoms or N-phenylpiperazinyl group ora non-toxic acid addition salt thereof, are central nervous system stimulants.Type: GrantFiled: October 2, 1980Date of Patent: September 15, 1981Assignee: American Home Products CorporationInventor: Reinhardt P. Stein
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Patent number: 4277609Abstract: A compound of the formula: ##STR1## in which the enantiomeric form is d,1 or 1- when R.sup.5 is hydrogen and d,1 or 1-threo when R.sup.5 is other than hydrogen;R.sup.1 and R.sup.2 are, independently, hydrogen, alkyl of 1 to 6 carbon atoms, alkoxy of 1 to 6 carbon atoms, halo, perfluoroalkyl of 1 to 3 carbon atoms, nitro, alkanoyl of 2 to 4 carbon atoms or alkoxycarbonyl of 2 to 4 carbon atoms;R.sup.3 is hydrogen, halo, nitro or alkanoyl of 2 to 4 carbon atoms;R.sup.5 and R.sup.6 are, independently, hydrogen or methyl;or a non-toxic acid addition salt thereof, are central nervous system stimulants.Type: GrantFiled: July 29, 1980Date of Patent: July 7, 1981Assignee: American Home Products CorporationInventor: Reinhardt P. Stein
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Patent number: 4129561Abstract: 5,6,7,12-Tetrahydro-5,12-methanodibenz[c,f]azocines substituted in the 6-position by a di(lower)alkylaminoacetyl or a di(lower)alkylaminoethyl group inhibit stress-induced ulcers. Also described are intermediates and processes for preparing the anti-ulcer compounds.Type: GrantFiled: July 20, 1977Date of Patent: December 12, 1978Assignee: American Home Products CorporationInventors: Reinhardt P. Stein, Daniel J. Delecki
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Patent number: 3975412Abstract: An efficient, one-step process for preparing 13-alkyl-17.alpha. alkyl, alkenyl, or alkynyl-17.beta.-acyloxy-4-en-3-one steroids from their corresponding 13-alkyl-17.alpha.-substituted-3-alkoxygona-2,5(10)-dien-17.beta.-ols is disclosed. Products of the instant process possess, for example, progestational activity.Type: GrantFiled: October 15, 1974Date of Patent: August 17, 1976Assignee: American Home Products CorporationInventor: Reinhardt P. Stein