Patents Examined by Diana G. Rivers
  • Patent number: 4533504
    Abstract: Diaryl and substituted diaryl carbonates are formed by a series of steps, the first step involving the production of a dialkyl carbonate from an alkanol, carbon monoxide and oxygen; and the second step involving the reaction of the dialkyl carbonate with a phenyl ester or substituted phenyl ester in the presence of a dialkyl tin compound to produce a mixture of diaryl carbonate, alkyl aryl carbonate, and an alkyl ester. The alkyl ester can be heated to reform the alkanol and form ketene; in turn the ketene can be reacted with the phenol or substituted phenol to form the phenyl ester or substituted phenyl ester used in the second step above.
    Type: Grant
    Filed: January 8, 1982
    Date of Patent: August 6, 1985
    Assignee: General Electric Company
    Inventors: Donald A. Bolon, Thomas B. Gorczyca, John E. Hallgren
  • Patent number: 4533753
    Abstract: (Hydrocarbylthio)phenols containing at least two hydrocarbylthio groups on a phenolic ring are prepared by reacting phenolic compounds with an excess of hydrocarbyl disulfide in the presence of catalytic amounts of an aluminum phenoxide. Novel and useful (hydrocarbylthio)phenols containing at least two hydrocarbylthio groups on a phenolic ring can be prepared by this process. (Hydrocarbylthio)phenols containing at least two hydrocarbylthio groups on a phenolic ring are effective antioxidants for organic material normally susceptible to oxidative deterioration, such as mineral oil.
    Type: Grant
    Filed: April 12, 1983
    Date of Patent: August 6, 1985
    Assignee: Ethyl Corporation
    Inventors: Bonnie G. McKinnie, Paul F. Ranken
  • Patent number: 4532242
    Abstract: Substituted triazolo[4,3-c]pyrimidines which are bronchodilators. The pharmacological use of these compounds, and synthetic intermediates for the preparation of these compounds are also described.
    Type: Grant
    Filed: May 2, 1983
    Date of Patent: July 30, 1985
    Assignee: Riker Laboratories, Inc.
    Inventor: James J. Wade
  • Patent number: 4528288
    Abstract: Substituted triazolo[1,5-c]pyrimidines which are bronchodilators. The pharmacological use of these compounds and pharmaceutical compositions containing these compounds are also described.
    Type: Grant
    Filed: May 2, 1983
    Date of Patent: July 9, 1985
    Assignee: Riker Laboratories, Inc.
    Inventor: James J. Wade
  • Patent number: 4528142
    Abstract: Described are 1-hydroxymethyl-2-acyl cyclopropane derivatives having one of the structures: ##STR1## and utilities thereof for their organoleptic properties.
    Type: Grant
    Filed: October 12, 1983
    Date of Patent: July 9, 1985
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Richard M. Boden, Marie R. Hanna, Theodore J. Tyszkiewicz
  • Patent number: 4526726
    Abstract: Described are organic peroxycarbonates of the graphic formula: ##STR1## in which R.sub.1 is a C.sub.1 -C.sub.14 alkyl, phenyl or benzyl group, R.sub.2 and R.sub.3 are each selected from the group C.sub.1 -C.sub.4 alkyl, C.sub.5 -C.sub.7 cycloalkyl, C.sub.1 -C.sub.4 alkyl substituted C.sub.5 -.sub.7 cycloalkyl or participate in a cycloalkyl group of from 5 to 7 carbon atoms, provided that when one of R.sub.2 and R.sub.3 is a cycloalkyl group, the other is an alkyl group, A is cyano or alkoxycarbonyl, i.e., ##STR2## wherein R is a C.sub.1 -C.sub.8 alkyl or cyclohexyl group. Preferably R.sub.2 and R.sub.3 are each a C.sub.1 -C.sub.2 alkyl group or participate to form a cyclohexyl group, R.sub.1 is a C.sub.1 -C.sub.3 alkyl or phenyl and R is a C.sub.1 -C.sub.4 alkyl.The compounds can be used as initiators for the polymerization and copolymerization of ethylenically unsaturated monomers.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: July 2, 1985
    Assignee: PPG Industries, Inc.
    Inventor: Robert H. Tang
  • Patent number: 4526894
    Abstract: 4-Hydroxy-2-quinolone derivatives are useful for their anti-inflammatory, anti-allergenic, antitussive and expectorant activity. Pharmaceutical compositions containing said compounds and pharmaceutically acceptable salts thereof and methods of treating humans and animals are described herein.
    Type: Grant
    Filed: June 21, 1983
    Date of Patent: July 2, 1985
    Assignee: Nippon Shinyaku Co. Ltd.
    Inventors: Hiroshi Enomoto, Tadatoshi Nomura, Yoshiaki Aoyagi, Shoichi Chokai, Tatsuhiko Kono, Masao Murase, Kichiro Inoue, Masahiro Adachi
  • Patent number: 4521423
    Abstract: 7,8,9,10-Tetrahydrobenzo[h]quinolin-9-amine derivatives of the formula ##STR1## in which R.sup.1 and R.sup.2 each independently is hydrogen or lower alkyl, or R.sup.1 and R.sup.2 together form a chain of the formula --(CH.sub.2).sub.n -- where n is the integer 4, 5 or 6, are useful for treating depression.
    Type: Grant
    Filed: October 31, 1983
    Date of Patent: June 4, 1985
    Assignee: Ayerst, McKenna & Harrison, Ltd.
    Inventors: Andre A. Asselin, Leslie G. Humber
  • Patent number: 4521601
    Abstract: This invention relates to compounds which may be described as the unnatural enantiomers of morphine agonists and antagonists, which are useful as antitussives. The synthesis utilized is capable of producing all of the unnatural enantiomers of medically important opium derivatives of the morphinan type, including thebaine.
    Type: Grant
    Filed: March 23, 1983
    Date of Patent: June 4, 1985
    Assignee: The United States of America as represented by the Department of Health & Human Services
    Inventor: Kenner C. Rice
  • Patent number: 4521419
    Abstract: Compounds of the formula (1) ##STR1## wherein n is 1 or 2;R.sub.1 represents a hydrogen or a halogen atom, a C.sub.1 -C.sub.4 alkyl group, a --CN group, a --CONH.sub.2 group or a --COOR.sub.8 group, wherein R.sub.8 represents hydrogen or a C.sub.1 -C.sub.6 alkyl group, unsubstituted or substituted by di(C.sub.1 -C.sub.4) - alkylamino;each of R.sub.2, R.sub.3 and R.sub.4 independently represents a hydrogen or a halogen atom, a C.sub.1 -C.sub.4 alkyl group, a C.sub.1 -C.sub.4 alkoxy group or a C.sub.3 -C.sub.4 alkenyloxy group;A completes a bond, thereby providing a double bond or, when R.sub.1 is --COOR.sub.8 wherein R.sub.8 is as defined above, A may represent also a --CH.sub.2 -- group, thereby providing a cyclopropane ring fused to the pyrido ring;R is (a) furyl, thienyl or pyridyl; or(b) a group of formula ##STR2## wherein each of R.sub.5, R.sub.6 and R.sub.7 represents, independently, a hydrogen or a halogen atom, hydroxy, formyloxy, C.sub.2 -C.sub.8 alkanoyloxy, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.
    Type: Grant
    Filed: April 27, 1983
    Date of Patent: June 4, 1985
    Assignee: Farmitalia Carlo Erba S.p.A.
    Inventors: Gianfederico Doria, Carlo Passarotti, Pier P. Lovisolo, Ada Buttinoni
  • Patent number: 4513138
    Abstract: New 5- and/or 7-substituted camptothecin-1-oxide derivatives possessing anti-tumor activity with slight toxicity, represented by the general formula: ##STR1## wherein R is a hydrogen atom, an alkyl group, a hydroxyl group, an alkoxy group or an acyloxy group and R' is a hydrogen atom, an alkyl group, an aralkyl group, a hydroxymethyl group, an acyloxymethyl group or a carboxymethyl group, with the proviso that both of R and R' should not be hydrogen atoms. These 5- and/or 7-substituted camptothecin-1-oxide derivatives are prepared by treating the corresponding 5- and/or 7-substituted camptothecins with a peroxidant as an N-oxidizing reagent.
    Type: Grant
    Filed: September 2, 1982
    Date of Patent: April 23, 1985
    Assignee: Kabushiki Kaisha Yakult Honsha
    Inventors: Tadashi Miyasaka, Seigo Sawada, Kenichiro Nokata, Masahiko Mutai
  • Patent number: 4512930
    Abstract: The application relates to a process for synthesizing unsaturated carbonic acid esters from polyhydric alcohols, which are reacted with alkyl carbonates and unsaturated alcohols in the presence of a basic catalyst, which can be chosen from sodium hydroxide, sodium carbonate, sodium alcoholate, organic bases and basic ion exchange resins.
    Type: Grant
    Filed: April 26, 1982
    Date of Patent: April 23, 1985
    Assignee: ANIC, S.p.A.
    Inventor: Ugo Romano
  • Patent number: 4510143
    Abstract: Novel pyrimidines of the formula ##STR1## wherein R.sub.1 is selected from the group consisting of --OH, cation of metals and organic bases, alkoxy of 1 to 5 carbon atoms, hydrazino and 1H-tetrazol-5-yl-amino, A is selected from the group consisting of ##STR2## R.sub.2 is selected from the group consisting of hydrogen and alkyl of 1 to 5 carbon atoms and R.sub.3 and R.sub.4 are individually selected from the group consisting of hydrogen, halogen and alkyl and alkoxy of 1 to 5 carbon atoms with the proviso that when R.sub.1 is alkoxy of 1 to 5 carbon atoms, R.sub.2 is not hydrogen and their non-toxic, pharmaceutically acceptable acid addition salts having anti-allergic properties.
    Type: Grant
    Filed: February 10, 1983
    Date of Patent: April 9, 1985
    Assignee: Roussel Uclaf
    Inventors: Robert Westwood, Peter Miller, Ian R. Ager, David P. Kay
  • Patent number: 4510144
    Abstract: There are prepared compounds of the formulae ##STR1## Where R.sup.1 is H, lower alkyl S--, ##STR2## NH.sub.2 or halogen, R.sup.2 is OH, lower alkyl S--, halogen, NH.sub.2 or SH,R is OH, SH, lower alkyl S--, or halogen andR.sup.3 is OH, SH, lower alkyl S--, halogen or NH.sub.2.The compounds have antiviral and immuno-modulating activity.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: April 9, 1985
    Assignee: Newport Pharmaceuticals International
    Inventors: John W. Hadden, Lionel N. Simon, Alfredo Giner-Sorolla
  • Patent number: 4508656
    Abstract: The application relates to a process for synthesizing carbonic allyl esters from polyhydric alcohols, which are reacted with diallyl carbonate in the presence of a basic catalyst, which can be chosen from sodium hydroxide, sodium carbonate, sodium alcoholate, organic bases or basic ion exchange resins.The final products obtained differ according to the ratio of the components of the starting mixture. Thus, in the case of diols with a diallyl carbonate/diol ratio greater than or equal to 10, the resultant product is constituted by the bis allyl carbonate of the diol together with a quantity of less than or equal to 10% of oligomers represented mainly by dimers. If the ratio is less than 10, the percentage of oligomers rises until, in the case of an approximately stoichiometric ratio, it reaches a value close to 70% of the reaction product.
    Type: Grant
    Filed: May 3, 1982
    Date of Patent: April 2, 1985
    Assignee: Anic, S.p.A.
    Inventors: Ugo Romano, Giuseppe Iori
  • Patent number: 4507308
    Abstract: The novel anthranilic acid derivatives having the structural formula (I): ##STR1## wherein n is 0, 1 or 2, one of R.sub.1 and R.sub.2 is chloro or trifluoromethyl and the other is hydrogen, and R is 2-oxo-3-oxolanyl or 2-oxo-3-oxazolidinyl, are effective analgesics and anti-inflammatories.
    Type: Grant
    Filed: September 28, 1982
    Date of Patent: March 26, 1985
    Assignee: Recordati S.A.
    Inventors: Dante Nardi, Gianni Motta, Rodolfo Testa, Gabriele Graziani, Silvano Casadio
  • Patent number: 4507477
    Abstract: A process for preparing compounds of the formula ##STR1## wherein X is sulfur or oxygen; and R.sup.1 and R.sup.2 are independently selected from the group consisting of H and an alkyl group containing 1 to about 4 carbon atoms, or R.sup.1 and R.sup.2 are fused to form a benzene ring which is optionally substituted by one or more substituents independently selected from the group consisting of an alkyl group containing 1 to about 4 carbon atoms, an alkoxy group containing 1 to about 4 carbon atoms, and halogen. The process involves reacting together a 2-aminooxazole, 2-aminobenzoxazole, 2-aminothiazole or 2-aminobenzothiazole, an alkyl tetrazol-5-ylacetate, and a trialkyl orthoformate and cyclizing the resulting intermediate.
    Type: Grant
    Filed: September 9, 1982
    Date of Patent: March 26, 1985
    Assignee: Riker Laboratories, Inc.
    Inventor: James J. Wade
  • Patent number: 4507307
    Abstract: N.sub.1 -acyl-3-amino-1,2,3,4-tetrahydroquinoline compounds active on the cardiocirculatory system, pharmaceutically acceptable salts thereof, pharmaceutical compositions containing the new compounds and some intermediates useful in the preparation of the new tetrahydroquinoline compounds.Process for preparing the new tetrahydroquinoline compounds and some intermediates useful in the preparation thereof.
    Type: Grant
    Filed: July 28, 1982
    Date of Patent: March 26, 1985
    Assignee: Simes
    Inventors: Vittorio Vecchietti, Emilio Mussini, Giorgio Ferrari
  • Patent number: 4504662
    Abstract: Isoxazolo[3,4-d]pyrimidines of the formula ##STR1## wherein R.sup.1 and R.sup.2, respectively, are lower alkyl; R.sup.3 is lower alkyl or acyl; and R.sup.4 is hydrogen, lower alkyl, or acyl have antiflammatory, analgesic and antipyretic activities in mammals and low acute and subacute toxicities, as well. The compounds are particularly useful as an antiinflammatory, analgesic and antipyretic drug.
    Type: Grant
    Filed: March 4, 1983
    Date of Patent: March 12, 1985
    Assignee: Takeda Chemical Industries, Ltd.
    Inventor: Yoshiyasu Furukawa
  • Patent number: 4501740
    Abstract: Novel 20,21-dinoreburnamenines of the formula ##STR1## wherein R is selected from the group consisting of hydrogen, alkyl of 1 to 4 carbon atoms and .dbd.CH.sub.2, the wavy line connecting to the E ring being a single bond when R is hydrogen or alkyl of 1 to 4 carbon atoms or a double bond when R is .dbd.CH.sub.2 and the dotted line being possibly an endo carbon-carbon bond when R is hydrogen or alkyl of 1 to 4 carbon atoms and their non-toxic, pharmaceutically acceptable acid addition salts in all their possible isomers forms, racemic mixtures and optical isomers having oxygenating and cerebral vasoregulating activity of great value and a novel process and intermediates for their preparation.
    Type: Grant
    Filed: September 21, 1982
    Date of Patent: February 26, 1985
    Assignee: Roussel Uclaf
    Inventors: Francois Clemence, Italo Medici, Robert Fournex, Colette Tournemine