Plural Rings Containing Patents (Class 568/47)
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Patent number: 9024073Abstract: Provided are novel thio compounds and a method for preparing the same. More particularly, there is provided a novel thio compound prepared by reacting an alkylation product of p-cresol and dicyclopentadiene with mercaptan and paraformaldehyde. Unlike existing antioxidants such as 2,6-di-t-butyl-4-methylphenol (BHT) being harmful to the human body due to the high volatility, the novel thio compounds of the present invention, which have the low volatility because of their high molecular weight, give no harm to the human body. Further, with excellent performances, they are suitable to replace the existing antioxidants.Type: GrantFiled: August 31, 2010Date of Patent: May 5, 2015Assignee: Korea Kumho Petrochemical Co., Ltd.Inventors: Hyung Jae Lee, Chang Kyo Shin, Jin Eok Kim
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Publication number: 20150065727Abstract: The present invention relates to the new chemical compounds containing (Z)-1,2-diphenylethene moiety in the structures, particularly the new derivatives of cis-stilbene, the new derivatives of 4,5-diphenyl-1,3-oxazole, the new derivatives of 1-methyl-4,5-diphenyl-1H-imidazole and pharmaceutically acceptable salts thereof. The invention relates also to the application of aforementioned compounds as a microtubule-interfering agents (MIAs). The new derivatives, because of their potential antimitotic and antiangio-genic activity, can be used as ingredients in the preparations used in the treatment of cancer.Type: ApplicationFiled: March 28, 2013Publication date: March 5, 2015Inventors: Tomasz Stefanski, Jakub Rózanski, Renata Mikstacka, Stanislaw Sobiak
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Patent number: 8729169Abstract: Disclosed are a novel anti-oxidant for rubber and a synthetic rubber including the same. The disclosed anti-oxidant contains a thio compound. The rubber including the anti-oxidant has excellent thermostability at a temperature of 100° C. or higher, and the anti-oxidant shows a low volatility due to its high molecular weight thus being applicable to manufacture environment-friendly rubber.Type: GrantFiled: April 8, 2011Date of Patent: May 20, 2014Assignee: Korea Kumho Petrochemical Co., Ltd.Inventors: Hyung Jae Lee, Chang Kyo Shin, Jin Eok Kim
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Patent number: 8686190Abstract: Treatment of cancer includes administering a compound of formula (I) to a subject. In particular, treatment of colorectal cancer is described.Type: GrantFiled: April 6, 2009Date of Patent: April 1, 2014Assignee: The UAB Research FoundationInventor: Ahmad Safavy
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Publication number: 20140030529Abstract: A chromene compound which develops a color of a neutral tint and has high color optical density, high fading speed and excellent durability and a photochromic curable composition comprising the chromene compound and polymerizable monomers. The chromene compound is represented by the following formula (1). (wherein R1 is an aryl group or heteroaryl group, and R2 is a sulfur-containing substituent selected from the group consisting of thiol group, alkylthio group, alkoxyalkylthio group, haloalkylthio group, cycloalkylthio group, arylthio group and heteroarylthio group.Type: ApplicationFiled: January 25, 2012Publication date: January 30, 2014Applicant: TOKUYAMA CORPORATIONInventors: Toshiaki Takahashi, Junji Takenaka, Junji Momoda, Kazuhiro Teranishi, Shinobu Izumi
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Publication number: 20120270982Abstract: Disclosed are a novel anti-oxidant for rubber and a synthetic rubber including the same. The disclosed anti-oxidant contains a thio compound. The rubber including the anti-oxidant has excellent thermostability at a temperature of 100° C. or higher, and the anti-oxidant shows a low volatility due to its high molecular weight thus being applicable to manufacture environment-friendly rubber.Type: ApplicationFiled: April 8, 2011Publication date: October 25, 2012Applicant: KOREA KUMHO PETROCHEMICAL CO., LTD.Inventors: Hyung Jae Lee, Chang Kyo Shin, Jin Eok Kim
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Publication number: 20120197005Abstract: The invention provides a method for producing a mixture of amorphous compounds, the method comprising supplying a solution containing the compounds; and allowing at least a portion of the solvent of the solution to evaporate while preventing the solute of the solution from contacting a nucleation point. Also provided is a method for transforming solids to amorphous material, the method comprising heating the solids in an environment to form a melt, wherein the environment contains no nucleation points; and cooling the melt in the environment.Type: ApplicationFiled: January 30, 2012Publication date: August 2, 2012Applicant: UCHICAGO ARGONNE, LLCInventors: Chris J. Benmore, Johann R. Weber
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Publication number: 20120172628Abstract: Provided are novel thio compounds and a method for preparing the same. More particularly, there is provided a novel thio compound prepared by reacting an alkylation product of p-cresol and dicyclopentadiene with mercaptan and paraformaldehyde. Unlike existing antioxidants such as 2,6-di-t-butyl-4-methylphenol (BHT) being harmful to the human body due to the high volatility, the novel thio compounds of the present invention, which have the low volatility because of their high molecular weight, give no harm to the human body. Further, with excellent performances, they are suitable to replace the existing antioxidants.Type: ApplicationFiled: August 31, 2010Publication date: July 5, 2012Applicant: KOREA KUMHO PETROCHEMICAL CO., LTD.Inventors: Hyung Jae Lee, Chang Kyo Shin, Jin Eok Kim
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Patent number: 8058309Abstract: The present invention provides new tyrphostin derivatives acting as substrate competitive protein tyrosine kinase (PTK) inhibitors and receptor tyrosine kinase (RTK) inhibitors, methods of their preparation, pharmaceutical compositions including such compounds, and methods of using these compounds and compositions, especially as chemotherapeutic agents for preventions and treatments of PTK and RTK related disorders such as metabolic, fibrotic, and cell proliferative disorders, in particular psoriasis and cancer.Type: GrantFiled: December 4, 2007Date of Patent: November 15, 2011Assignee: Novotyr Therapeutics Ltd.Inventors: Hadas Reuveni, Alexander Levitzki, Lilach Steiner, Revital Sasson, Iris Ben-David, Avi Weissberg
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Publication number: 20110196045Abstract: The present invention provides new estrogenic compounds of the general formula in which the substituents have the meanings that are explained in more detail in the description, and pharmaceutical compositions containing them. The compounds of the invention are useful, for example, in hormone replacement therapies (HRT/ERT) and as contraceptives and estrogenic hormone therapies. Also provided is a process for synthesizing the compounds of the invention.Type: ApplicationFiled: April 21, 2011Publication date: August 11, 2011Inventors: Hooman Shadnia, James S. Wright, Tony Durst, Muhammad Asim
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Publication number: 20110054037Abstract: Treatment of cancer includes administering a compound of formula (I) to a subject. In particular, treatment of colorectal cancer is described.Type: ApplicationFiled: April 6, 2009Publication date: March 3, 2011Applicant: THE UAB RESEARCH FOUNDATIONInventor: Ahmad Safavy
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Publication number: 20080286219Abstract: Skin brightening compositions based on hydroquinone derivatives and methods of making and using the composition. The hydroquinone derivatives are 2-thio-hydroquinone derivatives.Type: ApplicationFiled: May 17, 2007Publication date: November 20, 2008Inventors: Michael Fitzpatrick Wempe, Jeffrey M. Clauson
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Publication number: 20080262238Abstract: A dendron or dendrimer, which has, as a recurring unit of each branch, a structure of formula (I): wherein TC designates a linkage to a former generation in the direction to a focal point of the dendron or a core of the dendrimer; TT designates a linkage to a next generation in the direction to a terminal; X is a divalent group comprised of at least one heteroatom; L1 and L2 each are a divalent linking group; R is a hydrogen atom or a substituent; and a method of producing a dendron or a dendrimer; and a method of producing a thioacetal compound.Type: ApplicationFiled: March 28, 2005Publication date: October 23, 2008Inventor: Koki Nakamura
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Patent number: 7375252Abstract: This invention is in the area of methods and compositions for the inhibition of the expression of VCAM-1 and, in particular, for the treatment of diseases mediated by VCAM-1, including cardiovascular and inflammatory diseases.Type: GrantFiled: April 2, 2002Date of Patent: May 20, 2008Assignee: AtheroGenics, Inc.Inventor: Charles Q. Meng
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Patent number: 6936739Abstract: This invention relates to 1,2-di(4-hydroxyaryl)tetrafluoroethanes of the general formula (I) wherein R are each, independently of one another, hydrogen, F, Cl, Br, I, CN, COOR2, C1-C4-alkyl, C1-C4-alkoxy, C1-C4-alkylthio, C1-C4-perfluoroalkyl, C1-C4-perfluoroalkoxy, C1-C4-perfluoroalkylthio, C1-C4-polyfluoroalkyl, C1-C4-polyfluoroalkoxy, or C1-C4-polyfluoroalkylthio, R2 is C1-C4-alkyl, and n is an integer from 0 to 4. This invention further relates to the preparation of such compounds as well as to precursors and intermediates that can be used in their preparation.Type: GrantFiled: May 29, 2002Date of Patent: August 30, 2005Assignee: Bayer AktiengesellschaftInventors: Albrecht Marhold, Käthe Baumann
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Publication number: 20040127555Abstract: Bis- and tris-dihydroxyaryl compounds and their methylenedioxy analogs and pharmaceutically acceptable esters, their synthesis, pharmaceutical compositions containing them, and their use in the treatment of amyloid diseases, especially A&bgr; amyloidosis, such as observed in Alzheimer's disease, IAPP amyloidosis, such as observed in type 2 diabetes, and synucleinopathies, such as observed in Parkinson's disease, and the manufacture of medicaments for such treatment.Type: ApplicationFiled: May 30, 2003Publication date: July 1, 2004Inventors: Alan D. Snow, Beth P. Nguyen, Gerardo M. Castillo, Virginia J. Sanders, Thomas P. Lake, Lesley Larsen, Rex T. Weavers, Stephen D. Lorimer, David S. Larsen, David L. Coffen, Charlotte Coffen
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Patent number: 6689922Abstract: The invention concerns novel bi-aromatic compounds having the formula: which are analogs of vitamin D, the process of preparing them, as well as their use in pharmaceutical compositions in human or veterinary medicine, particularly in dermatology, cancer treatment, treatment of auto-immune diseases, and in organ or tissue transplants. Cosmetic compositions and methods of use are also included.Type: GrantFiled: July 26, 2001Date of Patent: February 10, 2004Assignee: Galderma Research & Development S.N.C.Inventor: Jean-Michel Bernardon
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Patent number: 6608061Abstract: A medicament for treatment of cancer comprising a compound represented by the following general formula (I) or a physiologically acceptable salt thereof: Ar1—S—R1—S—Ar2 wherein R1 represents a nonmetal bridging group; Ar1 and Ar2 independently represent a group selected from the group consisting of an aryl group which has, on its ring, one to three hydroxyl groups optionally substituted with a monovalent group and said aryl group may have one to three substituents other than hydroxyl group on its ring; and a heteroaryl group which has, on its ring, one to three hydroxyl groups optionally substituted with a monovalent group, and said heteroaryl group may have one to three substituents other than hydroxyl group on its ring.Type: GrantFiled: February 14, 2000Date of Patent: August 19, 2003Assignees: Kyoma Hakko Kogyo Co., Ltd., Fuji Photo Film Co., Ltd.Inventors: Yoshiyuki Yonetani, Takeshi Takahashi, Yuko Kanda, Tamio Mizukami, Tatsuya Tamaoki, Shun-ichi Ikeda, Masanobu Takashima, Naoki Asanuma, Tadashi Inaba, Hiroshi Takeuchi, Hiroshi Kawamoto, Yoshihisa Tsukada, Masato Satomura, Hiroshi Kitaguchi
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Publication number: 20030097023Abstract: A 5-thia-&ohgr;-substituted phenyl-prostaglandin E alcohol of the formula (I) 1Type: ApplicationFiled: July 3, 2002Publication date: May 22, 2003Inventors: Toru Maruyama, Kaoru Kobayashi
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Publication number: 20030018070Abstract: A medicament for treatment of cancer comprising a compound represented by the following general formula (I) or a physiologically acceptable salt thereof:Type: ApplicationFiled: February 14, 2000Publication date: January 23, 2003Inventors: YOSHIYUKI YONETANI, TAKESHI TAKAHASHI, YUKO KANDA, TAMIO MIZUKAMI, TATSUYA TAMAOKI, SHUN-ICHI IKEDA, MASANOBU TAKASHIMA, NAOKI ASANUMA, TADASHI INABA, HIROSHI TAKEUCHI, HIROSHI KAWAMOTO, YOSHIHISA TSUKADA, MASATO SATOMURA, HIROSHI KITAGUCHI
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Patent number: 6506943Abstract: A process for producing an aldehyde of the invention allows a 1,2-diol (vic-diol) to react with oxygen in the presence of a ruthenium catalyst supported on a carrier to oxidatively cleave a bond between two carbon atoms, where hydroxyl groups are combined with the carbon atoms, to thereby yield a corresponding aldehyde. The carrier includes, for example, an activated carbon. As a catalytic component to be supported on the carrier, dichlorotris(triphenylphosphine)ruthenium(II), and other organic ruthenium complexes, for example, can be used. The invention can efficiently produce a corresponding aldehyde by oxidative cleavage of a 1,2-diol with oxygen.Type: GrantFiled: January 12, 2001Date of Patent: January 14, 2003Assignee: Daicel Chemical Industries, Ltd.Inventors: Yasutaka Ishii, Tatsuya Nakano
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Publication number: 20030009060Abstract: This invention relates to 1,2-di(4-hydroxyaryl)tetrafluoroethanes of the general formula (I) 1Type: ApplicationFiled: May 29, 2002Publication date: January 9, 2003Inventors: Albrecht Marhold, Kathe Baumann
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Publication number: 20020193446Abstract: This invention is in the area of methods and compositions for the inhibition of the expression of VCAM-1 and, in particular, for the treatment of diseases mediated by VCAM-1, including cardiovascular and inflammatory diseases.Type: ApplicationFiled: April 2, 2002Publication date: December 19, 2002Inventor: Charles Q. Meng
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Method for making unsymmetrically substituted fluorenyl compounds for nonlinear optical applications
Patent number: 6379590Abstract: A new method for producing unsymmetrically substituted fluorenyl compounds, one step of which is the preparation of 2,7-disubstituted fluoren-9-one derivatives via the nucleophilic substitution of a compound of the formula D wherein A′ is selected from the group consisting of —Br, —Cl, —F, —NO2, and —CN; A is selected from the group consisting of —NO2, —CN, —CO2R, —C(O)R, —SO2R, —SO2RF, —C(CN)═C(CN)2 and —CH═C(CN)2; RF is —CpF2p+1, p=from about 0 to about 10; R is an straight, branched or cyclic aliphatic alkyl group having about 1 to 10 carbon atoms, or an aromatic group such as phenyl or naphthyl; and is a carbonyl or a protected carbonyl such as a ketal or thio-ketal such as wherein R′ is —CrH2r+1; R″ is —(CH2)r—; and r is independently 2 or 3, with a nucleophilic reagent in the presence of an aprotic solventType: GrantFiled: December 2, 1994Date of Patent: April 30, 2002Assignee: AlliedSignal Inc.Inventors: Chengjiu Wu, Jianhui Shan -
Patent number: 6218431Abstract: Substituted biphenyls having glucagon receptor antagonistic activity. Claimed compounds have the formula wherein R1a and R1b independently represent (C1-C6) alkyl; R2 represents (C1-C10) alkyl or substituted (C1-C10) alkyl wherein the substituents are independently from 1 to 3 of —SR7; R7 represents phenyl, or substituted phenyl wherein the substituents are independently 1-5 of halogen, trifluoromethyl, (C1-C6) alkyl, (C1-C6) alkoxy, nitro, cyano, or hydroxyl; R3 represents substituted (C1-C6) alkyl wherein the substituents are 1-2 hydroxyl groups; G represents a substituent selected from the group consisting of halogen, (C1-C6) alkyl, and OR4 wherein R4 is H or (C1-C6) alkyl; and y is 0 or an integer of 1-3. Pharmaceutical compositions containing such compounds and methods of treatment of glucagon-mediated conditions by administering such compounds are also claimed.Type: GrantFiled: July 31, 1997Date of Patent: April 17, 2001Assignees: Bayer Corporation, Bayer AktiengesellschaftInventors: William R. Schoen, Gaetan H. Ladouceur, James H. Cook, II, Timothy G. Lease, Donald J. Wolanin, Richard H. Kramss, Donald L. Hertzog, Martin H. Osterhout
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Patent number: 5705533Abstract: 10-thio-substituted 1,8-dihydroxy-9(10H) anthracenones, therapeutic compositions containing at least one of the 10-thio-substituted 1,8-dihydroxy-9(10H) anthracenones of the invention and methods of treating inflammatory conditions are provided.Type: GrantFiled: June 7, 1995Date of Patent: January 6, 1998Assignee: Teva Pharmaceutical Industries Ltd.Inventors: Klaus Muller, Hsu-Shan Huang, Wolfgang Wiegrebe
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Patent number: 5668168Abstract: This invention pertains to a novel group of 1,2-dithiin compounds useful as antiinfective agents, and a novel synthetic process to produce the same. The compounds are particularly effective in treating fungal infections, especially those caused by Candida albicans, Cryptococcus neoformans or Aspergillus fumigatus.Type: GrantFiled: June 6, 1995Date of Patent: September 16, 1997Assignees: Shaman Pharmaceuticals, Inc., The Regents of the University of MichiganInventors: Thien V. Truong, Donald E. Bierer, Jeffrey M. Dener, Richard Hector, Michael S. Tempesta, Bernard Loev, Wu Yang, Masato Koreeda
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Patent number: 5488180Abstract: This invention relates to complex hydrophobe compounds and to alkoxylation products, i.e., condensation reaction products of alkylene oxides and complex hydrophobe compounds having at least one active hydrogen. This invention also relates to alkoxylation products that have beneficial, narrow molecular weight ranges.Type: GrantFiled: May 29, 1992Date of Patent: January 30, 1996Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Richard D. Jenkins, David R. Bassett, Danny E. Smith, John N. Argyropoulos, James E. Loftus, Gregory D. Shay
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Patent number: 5401883Abstract: This invention relates to an improvement in a process for making 2,6-di-tertiarybutyl-4-mercaptophenol and 4,4-isopropylidenedithio-bis-(2,6-di-tertiarybutylphenol) which comprises reduction of bis (3,5-di-tertiarybutyl-4-hydroxyphenyl)polysulfide with hydrogen gas at a temperature range of from about 20.degree. C. to about 90.degree. C. in the presence of a catalytic amount of cobalt-molybdenum catalyst.Type: GrantFiled: July 7, 1993Date of Patent: March 28, 1995Assignee: Merrell Dow Pharmaceuticals Inc.Inventors: F. Mark Laskovics, Kim G. Bargeron
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Patent number: 5391650Abstract: A compound having at least one 2-hydroxy-1,3-propylidene, 2-acetoxy-1,3-propylidene, or 2-alkoxy-1,3-propylidene moiety between two benzocyclobutene end moieties is prepared by (a) contacting a diepoxide species with a benzocyclobutene species containing a functionality capable of reacting with an epoxy group, (b) contacting an epoxy-containing benzocyclobutene species with a species containing two functionalities capable of reacting with an epoxy group, (c) contacting an epoxy-containing benzocyclobutene species with a benzocyclobutene species containing a functionality capable of reacting with an epoxy group, (d) contacting epichlorohydrin with benzocyclobutene species capable of reacting with an epoxy group, or (e) contacting epihalohydrin with benzocyclobutene species and difunctional species, wherein both species contain functionalities capable of reacting with epoxy groups.Type: GrantFiled: December 30, 1992Date of Patent: February 21, 1995Assignee: The Dow Chemical CompanyInventors: David J. Brennan, Jerry E. White, Daniel M. Scheck, Robert A. Kirchhoff, Charles Z. Hotz
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Patent number: 5354511Abstract: Compounds having non-linear optical activity of the general formula ##STR1## wherein D and A are electron donor and acceptor groups, respectively, R.sup.1 and R.sup.2 are aromatic bridging groups, X and Y are preferably groups capable of partaking in polymerization reactions are suitable for use in polymer-based light modulator devices.Type: GrantFiled: November 27, 1992Date of Patent: October 11, 1994Assignee: AlliedSignal Inc.Inventors: Chengjiu Wu, Jianhui Shan, Ajay Nahata
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Patent number: 5288742Abstract: The invention concerns .alpha.,.alpha.-dialkylbenzyl derivatives of the formula I ##STR1## wherein Ar.sup.1 is phenyl or naphthyl, or a 10-membered bicyclic heterocyclic moiety containing one or two nitrogen heteroatoms and optionally containing a further heteroatom selected from nitrogen, oxygen and sulphur;A.sup.1 is a direct link to X.sup.1 or is (1-3C)alkylene;X.sup.1 is oxy, thio, sulphinyl or sulphonyl;the phenylene group may optionally bear one or two substituents R.sup.3 ;each of R.sup.1 and R.sup.2, which may be the same or different, is (1-4C)alkyl, (2-4C)alkenyl, (2-4C)alkynyl, fluoro-(1-4C)alkyl, phenyl or phenyl-(1-4C)alkyl, provided that both of R.sup.1 and R.sup.2 are not methyl or fluoromethyl; andQ is cyano, amino, nitro, formyl, (1-4C)alkoxy, thiazolyl or (2-4C)alkanoyl;or a pharmaceutically-acceptable salt thereof;processes for their manufacture; pharmaceutical compositions containing them and their use as 5-lipoxygenase inhibitors.Type: GrantFiled: March 18, 1992Date of Patent: February 22, 1994Assignees: Imperial Chemical Industries PLC, ICI PharmaInventors: Philip N. Edwards, David Waterson
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Patent number: 5214069Abstract: The invention concerns a compound of the formula I, ##STR1## wherein Ar.sup.1 is optionally substituted phenyl or naphthyl;A.sup.1 is (1-6C)alkylene, (3-6C)alkenylene, (3-6C)alkynylene or cyclo(3-6C)alkylene;Ar.sup.2 is optionally substituted phenylene, or a 6 membered heterocyclene moiety containing up to three nitrogen atoms;R.sup.1 is hydrogen, (1-6C)alkyl, (3-6C)alkenyl, (3-6C)alkynyl, cyano-(1-4C)alkyl or (2-4C)alkanoyl, or optionally substituted benzoyl; wherein R.sup.2 is hydrogen, (1-6C)alkyl, (2-6C)alkenyl, (2-6C)alkynyl or substituted (1-4C)alkyl; and whereinR.sup.3 is hydroxy-(1-4C)alkyl, mercapto-(1-4C)alkyl, (1-4C)alkoxy-(1-4C)alkyl, (3-4C)alkenyloxy-(1-4C)alkyl, (3-4C)alkynyloxy-(1-4C)alkyl, (1-4C)alkoxy-(2-4C)alkoxy-(1-4C)alkyl, (1-4C)alkylthio-(1-4C)alkyl, (1-4C)alkylsulphinyl-(1-4C)alkyl, (1-4C)alkylsulphonyl-(1-4C)alkyl, (1-4C)alkoxycarbonyl-(1-4C)alkyl, (2-4C)alkanoyl-(1-4C)alkyl, (2-4C)alkanoyloxy-(1-4C)alkyl or cyano-(1-4C)alkyl; or R.sup.Type: GrantFiled: January 23, 1992Date of Patent: May 25, 1993Assignees: Imperial Chemical Industries PLC, ICI PharmaInventor: Jean-Marc M. M. Girodeau
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Patent number: 5126486Abstract: A phenolic compound having formula (I): ##STR1## wherein X represents a chlorine atom or a methyl group, and a recording material comprising a coloress or light-colored leuco dye and the above phenolic compound serving as a color developer for the leuco dye are disclosed.Type: GrantFiled: October 17, 1990Date of Patent: June 30, 1992Assignee: Ricoh Company, Ltd.Inventors: Hiromi Furuya, Kunio Hayakawa
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Patent number: 5087743Abstract: Diphenylheteroalkyl derivatives of the formula I ##STR1## where A and R.sup.1 -R.sup.6 have the meanings specified in the description, and the preparation thereof are described.The substances are suitable for controlling diseases and as cosmetic agents.Type: GrantFiled: January 23, 1990Date of Patent: February 11, 1992Assignee: BASF AktiengesellschaftInventors: Bernd Janssen, Hans-Heiner Wuest
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Patent number: 5059723Abstract: This invention relates to the use of triorganophosphine compounds as catalyst for the reaction of phenols or thiophenols with cyclic organic carbonates.Type: GrantFiled: July 13, 1990Date of Patent: October 22, 1991Assignee: Indspec Chemical CorporationInventor: Hans Dressler
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Patent number: 5053548Abstract: There is disclosed a biphenyl derivative of the formula (B): ##STR1## wherein R.sup.1, R.sup.3, R.sup.4, R.sup.5 and R.sup.c are as defined or its salt, a composition for nerve cell degeneration repairing or protecting agent containing a phenyl derivative selected from compounds (1) to (4) and (B) as defined, and a process for preparing a phenyl derivative contained in the composition.Type: GrantFiled: February 8, 1990Date of Patent: October 1, 1991Assignee: Otsuka Pharmaceutical Company, Ltd.Inventors: Tatsuyoshi Tanaka, Yoji Sakurai, Hiroshi Okazaki, Takashi Hasegawa, Yoshiyasu Fukuyama
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Patent number: 5008430Abstract: The invention relates to mercaptopyrenes of the formula ##STR1## in which n denotes a whole number from 3 to 10 andR stands for a substitute or unsubstituted alkyl, alkenyl, alkynyl, cycloalkyl, aralkyl or aryl radicalto a process for its preparation, its use for the preparation of CT complexes and to the CT complexes obtained.Type: GrantFiled: April 10, 1989Date of Patent: April 16, 1991Assignee: Bayer AktiengesellschaftInventors: Gerhard Heywang, Friedrich Jonas
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Patent number: 5008459Abstract: Novel compositions are described which comprise an elastomer or a lubricant and at least one compound of the formulae I or II ##STR1## The symbols R.sub.1, R.sub.2, R.sub.3, Z.sub.1 and Z.sub.2 are as defined in claim 1.The compounds of the formula II and some of the compounds of the formula I are novel, and they are used especially as antioxidants.Type: GrantFiled: December 22, 1987Date of Patent: April 16, 1991Assignee: Ciba-Geigy CorporationInventors: Hans R. Meier, Samuel Evans, Paul Dubs
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Patent number: 4845119Abstract: A compound of the formula ##STR1## wherein X has the formula --CR.sup.5 .dbd.CR.sup.6 --, --C.tbd.C-- or ##STR2## wherein ring A is phenyl, naphthyl or heterocyclic; wherein R.sup.1 is hydrogen, alkyl, alkanoyl or aroyl;wherein R.sup.2, R.sup.3 and R.sup.4, which may be the same or different, each is an electron withdrawing substituent of each is hydrogen or alkyl, alkoxy or dialkylamino, provided that when ring A is phenyl or naphthyl at least one of R.sup.2, R.sup.3 and R.sup.4 is an electron-withdrawing substitutent;wherein R.sup.5 and R.sup.6, each is hydrogen, halogeno or alkyl;wherein R.sup.7 is alkyl or halogenoalkyl; and wherein R.sup.8 has the formula --Y--Q--R.sup.9 wherein Y is straight- or branched-chain alkylene or alkenylene; wherein Q is --O--, --S--, --SO-- or --SO.sub.2 --; andwherein R.sup.9 is alkyl or up to 6 carbon atoms which contains one or more defined substituents, processes for their manufacture and pharmaceutical compositions containing them.Type: GrantFiled: February 18, 1986Date of Patent: July 4, 1989Assignee: Imperial Chemical Industries PLCInventors: Leslie R. Hughes, Howard Tucker
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Patent number: 4820756Abstract: Novel compounds of the formula I ##STR1## in which R.sub.1, R.sub.2, R.sub.8, R.sub.9 and R.sub.10 are independently alkyl, alkenyl, cycloalkyl, phenyl, naphthyl, alkylphenyl or aralkyl and R.sub.1 and R.sub.2 may also be independently hydrogen or alkoxycarbonylmethyl, are described.The novel phenols are suitable as stabilizers in organic polymers and lubricants.Type: GrantFiled: June 22, 1987Date of Patent: April 11, 1989Assignee: Ciba-Geigy CorporationInventors: Rita Pitteloud, Paul Dubs
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Patent number: 4792633Abstract: Strong acids, e.g., aluminosilicates and sulfonic acids are employed as catalysts for the (alkyl or aryl)thiolation of phenols using dialkyl or diaryl disulfides and/or (alkyl- or arylthio)phenols as thiolating agents, and for the isomerization of (alkyl- or arylthio)phenols, to prepare ortho(alkyl- or arylthio)phenols as the predominant products.Type: GrantFiled: May 19, 1986Date of Patent: December 20, 1988Assignee: E. I. Du Pont de Nemours and CompanyInventor: Paul W. Wojtkowski
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Patent number: 4772405Abstract: The invention relates to compositions comprising a lubricant or a hydraulic fluid and at least one compound of formula I ##STR1## wherein X is --S--, --O--, --CO--O--, --CH.sub.2 -- or --NR.sup.5 --, where R.sup.5 is hydrogen or C.sub.1 --C.sub.8 alkyl, n is 0, 1, 2 or 3, R.sup.1 and R.sup.2 are each independently of the other hydrogen or C.sub.1 -C.sub.12 alkyl, R.sup.3 is hydrogen or methyl, and R.sup.4 is C.sub.1 -C.sub.22 alkyl, C.sub.5 -C.sub.8 cycloalkyl, aryl or aryl which is substituted by one or two C.sub.1 -C.sub.8 alkyl radicals, or is C.sub.7 -C.sub.12 aralkyl or the group ##STR2## wherein R.sup.1, R.sup.2, R.sup.3 and n have the given meanings. The sulfur-containing phenol derivatives of formula I are particularly suitable antiwear, extreme pressure and antioxidant additives for mineral and synthetic lubricants and for hydraulic fluids.The invention further relates to novel phenol derivatives of formula I which are suitable additives for lubricants, hydraulics and elastomers.Type: GrantFiled: August 14, 1986Date of Patent: September 20, 1988Assignee: Ciba-Geigy CorporationInventor: Hermann O. Wirth
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Patent number: 4734527Abstract: In a process for making 2,6-di-tertiarybutyl-4-mercaptophenol by the Zn/acid reduction of bis (3,5-di-tertiarybutyl-4-hydroxyphenyl)polysulfide the addition of catalytic amounts of lead to the zinc reagent results in substantial improvement in the process.Type: GrantFiled: October 17, 1986Date of Patent: March 29, 1988Assignee: Merrell Dow Pharmaceuticals Inc.Inventor: Richard C. Krauss
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Patent number: 4732912Abstract: A phenol derivative of the formulaNU--A--X--R.sup.1wherein NU is a defined bis-phenolic nucleus including a hydroxyphenyl-hydroxynaphthyl; hydroxyphenyl-hydroxyindanyl, hydroxyphenyl-hydroxybenzothienyl or di-hydroxyphenyl-ethylene or vinylene nucleus; wherein A is alkylene, alkenylene or alkynylene which may be interrupted by phenylene or other linkages,wherein R.sup.1 is hydrogen, or alkyl, alkenyl, cycloalkyl, halogenoalkyl, aryl or arylalkyl, or R.sup.1 is joined to R.sup.2, and wherein X is --CONR.sup.2 --, --CSNR.sup.2 --, --NR.sup.12 CO--, --NR.sup.12 CS--, --NR.sup.12 CONR.sup.2 --, ##STR1## --SO.sub.2 NR.sup.2 -- or --CO--, or, when R.sup.1 is not hydrogen, is --NR.sup.12 COO--, --S--, --SO-- or --SO.sub.2 --,wherein R.sup.2 is hydrogen or alkyl, or R.sup.1 and R.sup.2 together form alkylene;wherein R.sup.12 is hydrogen or alkyl, and wherein R.sup.22 is hydrogen, cyano or nitro;or a salt thereof when appropriate.Type: GrantFiled: April 27, 1984Date of Patent: March 22, 1988Assignee: Imperial Chemical Industries PLCInventors: William R. Pilgrim, Derek W. Young, Brian S. Tait, Graham C. Crawley, Philip N. Edwards, George B. Hill
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Patent number: 4686235Abstract: Substituted cinnamyl-2,3-dihydrobenzofurans and analogs were prepared from the nucleophlic substitution of a cinnamylhalide with a 2,3-dihydrobenzofuran anion or an analog thereof. These compounds were found to be potent topical anti-inflammatory agents.Type: GrantFiled: August 12, 1985Date of Patent: August 11, 1987Assignee: Merck & Co., Inc.Inventors: Michael N. Chang, Norman P. Jensen, Milton L. Hammond, Robert A. Zambias, John McDonald, Kathleen M. Rupprecht
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Patent number: 4678665Abstract: Products of formula (I) ##STR1## in which R=C.sub.6-18 aromatic or alkylaromatic of valency z, R'=H, C.sub.1-16 alkyl or phenyl, A=CH.sub.2 or CH.sub.2 --O-- and, in the latter case, R'.noteq.H, x=1-8, y=1-20, z=1-3 and T denotes one or more anionic groups or a mixture of anionic groups and non-ionic groups are disclosed.These compounds are prepared by the reaction of a phenol R(OH).sub.z with an epoxide ##STR2## and an epihalogenohydrin ##STR3## in which X=Cl or Br, this being followed by replacement of X with one or more hydrophilic groupsThese compounds can be used as surface-active agents.Type: GrantFiled: August 2, 1984Date of Patent: July 7, 1987Assignee: L'OrealInventors: Guy Vanlerberghe, Henri Sebag
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Patent number: 4670495Abstract: Novel o-bridged polynuclear polyphenols of the formula I ##STR1## which contain at least one organic radical, such as alkyl, cycloalkyl or aryl, per phenyl nucleus and are formed by condensation of the monomeric phenolic components with customary bridging reagents, such as formaldehyde, acetone or sulfur dichloride, or by oxidative coupling of the monomeric phenolic components, and which, depending on the reaction procedure, can contain between 2 and 50 monomer units, are described.The substances according to the invention can be used for stabilizing plastics from oxidative degradation and have a good resistance to extraction.Type: GrantFiled: June 20, 1986Date of Patent: June 2, 1987Assignee: Ciba-Geigy CorporationInventor: Samuel Evans
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Patent number: 4659762Abstract: The title compounds correspond to the formula ##STR1## and are useful as stabilizers for organic polymers and lubricating oils to counteract the degradative effects of heat, light and air.Type: GrantFiled: July 25, 1986Date of Patent: April 21, 1987Assignee: Ciba-Geigy CorporationInventor: Linda A. Jenkins
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Patent number: RE32618Abstract: Mercaptophenols are reacted with compounds containing olefinic unsaturation, or polycyclic olefins, or dihydroxy compounds to form phenolic antioxidants such as 3,8-bis(4-hydroxyphenylthio)-tricyclo[5.2.1.0..sup.2,6 ] decane; 1,4-bis[2-(4-hydroxyphenylthio)ethyl]benzene and age resistant polymers containing said antioxidants.Type: GrantFiled: April 18, 1986Date of Patent: March 1, 1988Assignee: The Goodyear Tire & Rubber CompanyInventor: Kirkwood S. Cottman