Esterified Phenolic Hydroxy Patents (Class 560/108)
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Publication number: 20150031651Abstract: The invention relates to prodrugs of vitamin K2, in particular prodrugs of MK-7 in which the diketone is converted to a monosubstituted or disubstituted ester type derivative. These compounds are shown to give MK-7 in plasma.Type: ApplicationFiled: March 4, 2013Publication date: January 29, 2015Inventors: Mona Moller, Marcel Sandberg, Inger Reidun Aukrust
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Publication number: 20140187630Abstract: Provided is a levodopa prodrug that overcomes the problems attributed to the blood kinetics of levodopa such as large number of doses and the incidence of side effects due to frequent dosing. (2S)-2-Amino-3-(3,4-bis((2-(benzoyloxy)-2-methylpropanoyl)oxy)phenyl)propanoic acid, a salt thereof, or a solvate thereof is a levodopa prodrug, and provides a flat blood concentration-time profile of levodopa through oral administration, and therefore is useful as a preventive and/or therapeutic agent for Parkinson's disease and/or Parkinson's syndrome that overcomes the problems associated with pharmaceutical preparations of levodopa.Type: ApplicationFiled: March 5, 2014Publication date: July 3, 2014Applicant: ONO PHARMACEUTICALS CO., LTD.Inventors: Masaya KOKUBO, Koji YANO
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Publication number: 20130281531Abstract: The present disclosure relates to polymorphs of 4-[2-dimethylamino-1-(1-hydroxycyclohexyl)ethyl]phenyl 4-methylbenzoate hydrochloride, methods for preparing the same and use of the same.Type: ApplicationFiled: March 18, 2013Publication date: October 24, 2013Inventors: Shandong Luye Pharmaceutical Co., Ltd., Youxin Li
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Publication number: 20130240784Abstract: To provide a liquid crystal compound having a large negative dielectric anisotropy (??), and having at least one of characteristics such as a high stability to heat, light and so forth, a high clearing point, a suitable refractive index anisotropy (?n) and an excellent compatibility with other liquid crystal compounds, and an intermediate thereof. A solution is a compound represented by formula (1): wherein, for example, R1 and R2 are alkyl having 1 to 12 carbons, alkoxy having 1 to 12 carbons or alkenyl having 2 to 12 carbons; ring A1, ring A2 and ring A3 are 1,4-cyclohexylene or 1,4-phenylene; Z1, Z2 and Z3 are a single bond or —(CH2)2—; X is —CF2— or —CHF—; and l, m and n are 0 or 1.Type: ApplicationFiled: December 9, 2011Publication date: September 19, 2013Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: Kenji Hirata, Hiroki Ookawa
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Patent number: 8524939Abstract: Novel processes for preparing optically active cyclopentanones 1 which are useful for the preparation of benzindene Prostaglandins and novel cyclopentanones are provided. The invention also provides novel processes of preparing benzindene Prostaglandins and novel intermediates for benzindene Prostaglandins.Type: GrantFiled: August 24, 2011Date of Patent: September 3, 2013Assignee: Chirogate International Inc.Inventors: Shih-Yi Wei, Min-Kuan Hsu, Ming-Kun Hsu
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Publication number: 20130225679Abstract: Provided are analgesic compounds, and salts thereof, of formula: (I) wherein A is: (A) Additionally, pharmaceutical formulations and methods of use employing the above compounds are provided.Type: ApplicationFiled: January 13, 2012Publication date: August 29, 2013Applicant: ELI LILLY AND COMPANYInventors: Jean Marie Defauw, Scott Dale Holmstrom, Shuhui Chen, Yang Zhang, Wentao Wu, Xian Peng, Yujuan Ma, Lun Lu
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Patent number: 8470954Abstract: A novel macromer or mixture thereof is described herein, comprising benzoyl isocyanate terminal moieties and at least two residues of a water-soluble polymer having a molecular weight ranging from 80 to 10,000 adjacent to the carbonyl group of the benzoyl isocyanate moieties, thereby forming at least two ester linkages in the macromer or mixture thereof. A method for making a polyisocyanate macromer is also described herein.Type: GrantFiled: July 2, 2007Date of Patent: June 25, 2013Assignee: Ethicon, Inc.Inventors: Christopher M. Westergom, Benjamin D. Fitz
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Publication number: 20130053581Abstract: Novel processes for preparing optically active cyclopentanones 1 which are useful for the preparation of benzindene Prostaglandins and novel cyclopentanones are provided. The invention also provides novel processes of preparing benzindene Prostaglandins and novel intermediates for benzindene Prostaglandins.Type: ApplicationFiled: August 24, 2011Publication date: February 28, 2013Inventors: Shih-Yi WEI, Min-Kuan Hsu, Ming-Kun Hsu
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Publication number: 20110237798Abstract: A method is provided for the preparation of an aromatic carboxylic acid aryl ester or an N-aryl aromatic carboxamide. The method comprises contacting an O,O-diaryl thiocarbonate or an O-aryl-N-aryl thiocarbamate with a reactant that regioselectively reacts with sulfur, which contact causes an O-neophyl rearrangement, thereby forming either the aromatic carboxylic acid aryl ester or the N-aryl aromatic carboxamide, respectively.Type: ApplicationFiled: March 22, 2011Publication date: September 29, 2011Applicant: The Florida State University Research Foundation, Inc.Inventors: Igor Alabugin, Abdulkader Baroudi
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Publication number: 20100210524Abstract: The invention provides a compound of formula (I) or a pharmaceutically acceptable ester, amide, solvate or salt thereof, including a salt of such an ester or amide, and a solvate of such an ester, amide or salt, wherein W, X, Y, Z, R1, R2, R7, R8, R9, R10, R11, R12, R13, R14, R15 and R16 are as defined in the specification. The invention also provides also provides the use of such compounds in the treatment or prophylaxis of a condition associated with a disease or disorder associated with estrogen receptor activity.Type: ApplicationFiled: July 21, 2008Publication date: August 19, 2010Inventors: Theresa Apelqvist, Joakim Löfstedt, Thomas Norin, Mattias Wennerstål, Xiongyu Wu, Lars Hagberg
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Publication number: 20100143843Abstract: Disclosed are a photoacid generator, a copolymer, a chemically amplified resist composition, and a method of forming a pattern using the chemically amplified resist composition. The photoacid is connected with a main chain of the copolymer, whereby the photoacid is equally dispersed within a resist layer, and characteristics of line edge roughness of a resist pattern is improved.Type: ApplicationFiled: April 2, 2009Publication date: June 10, 2010Inventors: Jung Hoon OH, Sang Jin KIM, Jin Ho KIM, Dae Hyeon SHIN
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Publication number: 20090239944Abstract: The present invention relates to compounds of the formula I wherein R3 is C1-6-alkyloxy, C1-6-acyloxy or aroyloxy; R6 is hydrogen or C1-6-alkyloxy; R7 is C1-6-alkyloxy, C1-6-acyloxy, aroyloxy or arylacyloxy; R8 is hydrogen or C1-6-alkyloxy; or R7 and R8 form together a group O-L-O with L being (CR1R2)n, with R1 and R2 being independently from each other hydrogen or C1-5-alkyl and n being an integer from 1 to 3; R10 is hydrogen or N—C1-4-acyl, N—C1-5-alkyl-x-Cx-alkyl with x being an integer from 1 to 5, for use as medicament for the treatment of a disorder connected to impaired glucose metabolism and impaired insulin action such as syndrome X and diabetes type 1 and 2, especially for the treatment of (non-autoimmune) diabetes type 2.Type: ApplicationFiled: June 23, 2006Publication date: September 24, 2009Inventors: Daniel D'orazio, Antoine De Saizieu, Goede Schuler, Ying Wang-Schmidt, Christof Wehrli, Swen Wolfram
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Patent number: 6989462Abstract: A process is described for preparing compounds of formula (I) where R is H, optionally halogen-substituted alkyl, cycloalkyl, aryl, alkyl-aryl or heteroaryl, and, in alkyl and cycloalkyl, one or more CH2 groups may be replaced by —O—. The compounds of the formula (I) are valuable intermediates in the synthesis of PPAR agonists.Type: GrantFiled: March 18, 2004Date of Patent: January 24, 2006Assignee: Sanofi-Aventis Deutschland GmbHInventors: Claus-Jürgen Maier, Tobias Metzenthin, Joachim Graeser, Richard Bicker, Javier Manero
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Patent number: 6753443Abstract: The present invention relates to a process for preparing a chiral ester according to the formula (100): by reacting (i) a racemic alcohol, (ii) a selected ruthenium complex to activate racemization of the racemic alcohol, (iii) a lipase to selectively acylate one enantiomer of the racemic alcohol, and (iv) an acyl donor compound to supply an acyl group to the lipase.Type: GrantFiled: March 2, 2001Date of Patent: June 22, 2004Assignees: Samsung Fine Chemicals Co., Ltd., Pohang University of Science and TechnologyInventors: Jai Wook Park, Mahn-Joo Kim, Jeong Hwan Koh, Hyun Min Jung
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Publication number: 20040044243Abstract: The invention relates to an improved process for preparing 3-acyloxy-2-methylbenzoic acids by heating substituted naphthalenes in the presence of alkali metal hydroxides and subsequently acylating.Type: ApplicationFiled: June 10, 2003Publication date: March 4, 2004Inventors: Johannes Scherer, Horst Behre, Friedrich Muller-Hauck
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Patent number: 6512136Abstract: New compounds of formula I are described The compounds have potentially valuable pharmaceutical properties in the treatment of some central and peripheral nervous system disorders, where a reduction in the O-methylation of catecholamines may be of therapeutical benefit, such as Parkinson's disease and parkinsonian disorders, gastrointestinal disturbances, edema formation states and hypertension.Type: GrantFiled: December 17, 1999Date of Patent: January 28, 2003Assignee: Portela & C.A., S.A.Inventors: Jan Benes, Patricio Manuel Viera Araujo Soares Da Silva, David Alexander Learmonth
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Patent number: 6440328Abstract: The invention relates to a one-step process for the preparation of acryloyl group-containing liquid-crystalline monomers of the general formula (1) (Z—Y1—A2—Y2—)mM(—O—A1-acrylate)n (1) in which mesogenic alcohols of the general formula (2) (Z—Y1—A2—Y2—)mM(OH)n (2) are reacted with esters of 3-chloropropionic acid of the general formula (3) ClPr—A1—X (3) with elimination of HCl, where acrylate is an acrylate radical, ClPr is a 3-chloropropionate radical, A1 are identical or different alkyl chain spacers having 2-20 carbon atoms, in which the carbon chain may be interrupted by non-adjacent ether, thioether, or imino groups, A2 are radicals A1 or single chemical bonds, M is a mesogenic group, X is a leaving group, Z are alkyl radicals or crosslinkable groups, Y1 and Y2, independently of one another, are a single chemical bond, —O—, —S—, —O—CO—, —COType: GrantFiled: April 18, 2000Date of Patent: August 27, 2002Assignee: Consortium fur Elektrochemische Industrie GmbHInventors: Volker Stanjek, Wolfram Schindler, Thomas Kammel, Norman Häberle
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Patent number: 6436991Abstract: Ferulate compounds derived from extracts from the plant Commiphora wightii are used in compositions and methods for prevention and treatment of abnormal cell growth and proliferation in inflammation, neoplasia and cardiovascular disease.Type: GrantFiled: May 21, 2001Date of Patent: August 20, 2002Assignees: Sabinsa Corporation, Sami Chemicals & Extracts (P) Ltd.Inventors: Muhammed Majeed, Vladimir Badmaev, Rajinder Kumar Bammi, Subbalakshmi Prakash, Sankaran Natarajan
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Publication number: 20020004619Abstract: A process for preparing trimethylhydroquinone diacetate, with subsequent hydrolysis to give trimethylhydroquinone, the process including reacting 2,2,6-trimethylcyclohexane-1,4-dione under oxidative conditions, in the presence of a sulfonating agent and a strong acid, and in the presence of an acylating agent.Type: ApplicationFiled: April 4, 2001Publication date: January 10, 2002Inventors: Steffen Krill, Klaus Huthmacher
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Patent number: 6242636Abstract: An electoclinic device having two spaced cell walls each bearing electrode structures and treated on at least one facing surface with an alignment layer, a layer of a smectic liquid crystal material enclosed between the cell walls, where the liquid crystal material contains one or more of the compounds described by formula I as defined in the specification.Type: GrantFiled: January 5, 1999Date of Patent: June 5, 2001Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britian and Northern Ireland of Defence Evaluation and Research AgencyInventors: Andrew John Slaney, Damien Gerard McDonnell, Amarjit Kaur Samra, Maurice Stanley, Victoria Minter, John William Goodby, Michael Hird, Simon John Cross, Chu Chuan Dong
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Patent number: 6242637Abstract: The invention relates to compounds of the formula in which: A is a divalent radical selected from: A1) —O—CO— A2) —CH2—O—CO— A3) —O—CH2—CO— A4) —O—CH2—CH2— A5) —N(R1)—CO— A6) —N(R1)—CO—CO— A7) —N(R1)—CH2—CH2— A8) —O—CH2— in which: R1 is a hydrogen or a (C1-C4)-alkyl; and Am is a nitrogen-containing heterocycle.Type: GrantFiled: October 20, 1998Date of Patent: June 5, 2001Assignee: Sanofi-SynthelaboInventors: Xavier Emonds-Alt, Isabelle Grossriether, Patrick Gueule, Vincenzo Proietto, Didier Van Broeck
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Patent number: 6040470Abstract: There is provided a developer composition including at least one of sulfonyl compounds represented by formula (1) and at least one of sulfonyl compounds represented by formula 2: ##STR1## wherein X is H or lower alkyl, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 which may be the same or different, present H, halogen or lower alkyl and Y represents alkyl, benzenesulfonyl, benzoyl et al, A thermalsensitive recording medium having the above developer is of high sensitivity, less surface-blushing with lapse of time and is excellent in storage stability of a recorded image, particularly in heat resistance, humidity resistance and anti-plasticizer.Type: GrantFiled: September 10, 1998Date of Patent: March 21, 2000Assignee: Sanko Kaihatsu Kagaku KenkyushoInventors: Shigeru Oda, Eiji Kawabata
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Patent number: 6030546Abstract: The present invention relates to trans-olefin compounds represented by the general formula (1) useful as an ingredient of liquid crystal composition, trans-olefin compounds useful as intermediate of pesticides, medical drugs, liquid crystal materials and the like, a process for producing those trans-olefin compounds, a liquid crystal composition containing the trans-olefin compound as an active ingredient, and a liquid crystal element using the liquid crystal composition. ##STR1## (In the general formula (1), R.sup.1, A.sup.1, A.sup.2, A.sup.3, Z and R.sup.2 are same as defined in the specification. Also, m, p, q, n, r, s and t are each an integer as defined in the specification.Type: GrantFiled: April 4, 1997Date of Patent: February 29, 2000Assignee: Sumitomo Chemical Company, LimitedInventors: Yukari Fujimoto, Naoyuki Takano, Takayuki Higashii, Masayoshi Minai, Chizu Sekine, Kayoko Ueda, Koichi Fujisawa, Kyoko Endo, Takeshi Tani
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Patent number: 5976408Abstract: An acrylonitrile derivative expressed by the following general formula I, a composition comprising the derivative and having an improved viscosity and optical anisotropy, and a liquid crystal display device: ##STR1## wherein rings A.sup.1 to A.sup.3 represent phenylene, cyclohexylene, dioxane, or pyrimidine, R.sup.Type: GrantFiled: December 19, 1997Date of Patent: November 2, 1999Assignee: Chisso CorporationInventors: Atsuko Fujita, Shuichi Matsui, Koichi Shibata, Kazutoshi Miyazawa, Yasuko Sekiguchi, Etsuo Nakagawa
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Patent number: 5851424Abstract: The present invention is concerned with photo cross-linkable liquid crystalline compounds of the general formula ##STR1## wherein A.sup.1 and A.sup.2 each represent a cross-linkable, mesogenic residue,liquid crystalline mixtures which contain such compounds and their use in the cross-linked state as optical components.Type: GrantFiled: July 25, 1996Date of Patent: December 22, 1998Assignee: Rolic AGInventor: Stephen Kelly
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Patent number: 5851427Abstract: Photocross-linkable naphthyl derivatives include compounds of the formula: ##STR1## wherein R.sup.1 and R.sup.2 each independently signify a cross-linkable group;S.sup.1 and S.sup.2 signify --(CY.sub.2).sub.m -, --O(CY.sub.2).sub.m -, --(CY.sub.2).sub.m O--, --(CY.sub.2).sub.m COO--, --(CY.sub.2).sub.m OOC--, --(Si?(CH.sub.3).sub.2 !O).sub.m -, --OCH.sub.2 (Si?(CH.sub.3).sub.2 !O).sub.m Si?(CH.sub.3).sub.2 !CH.sub.2 O-- or --NHCH.sub.2 (Si?(CH.sub.3).sub.2 !O).sub.m Si?(CH.sub.3).sub.2 !CH.sub.2 NH--;Y signifies hydrogen, fluorine or methyl;a signifies 0 or 1;b signifies 1 or 2, with the proviso that a+b=2;m signifies a whole number of 1 to 16;A.sup.1 and A.sup.2 each independently signify 1,4-phenylene, which is optionally mono- or multiply-substituted with halogen, cyano, methyl, methoxy and/or acetyl, pyridine-2,5-diyl, pyrimidine-2,5-diyl, trans-1,4-cyclohexylene or trans-1,3-dioxane-2,5-diyl; andZ.sup.1 and Z.sup.2 each independently signify a single bond, --CH.sub.2 CH.sub.2 --, --OCH.sub.2 --, --CH.Type: GrantFiled: February 23, 1996Date of Patent: December 22, 1998Assignee: Rolic AGInventor: Stephen Kelly
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Patent number: 5820785Abstract: Disclosed are derivatives of fluoroalkylethynyl- and difluoroalkylethynylbenzenes of the formula (I) herein. These compounds exhibit useful properties as liquid crystal compounds and are useful in nematic liquid crystal mixtures.Type: GrantFiled: November 18, 1996Date of Patent: October 13, 1998Assignee: Merck Patent Gesellschaft mit Beschrankter HaftungInventors: Hubert Schlosser, Dietmar Jungbauer
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Patent number: 5811421Abstract: The present invention provides compounds of formula ##STR1## wherein R.sup.1 is --H, --OH, --O(C.sub.1 -C.sub.4 alkyl), --OCOC.sub.6 H.sub.5, --OCO(C.sub.1 -C.sub.6 alkyl), or --OSO.sub.2 (C.sub.4 -C.sub.6 alkyl);R.sup.2 is C.sub.1 -C.sub.6 alkyl or C.sub.5 -C.sub.7 cycloalkyl which is optionally substituted with 1 to 3 substitutents selected from the group consisting of C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, hydroxy, amino, nitro, and halo;X is --CH(OH)-- or --CH.sub.2 --;M is --CH.sub.2 CH.sub.2 -- or --CH.dbd.CH--;n is 2 or 3; andR.sup.3 is 1-piperidinyl, 1-pyrrolidinyl, methyl-1-pyrrolidinyl, dimethyl-1-pyrrolidinyl, 4-morpholino, dimethylamino, diethylamino, or 1-hexamethyleneimino; or a pharmaceutically acceptable salt thereof. Also provided are methods of using the compounds of the present invention for the treatment of various medical indications associated with post-menopausal syndrome, uterine fibroid disease, endometriosis, and aortal smooth muscle cell proliferation.Type: GrantFiled: July 16, 1996Date of Patent: September 22, 1998Assignee: Eli Lilly and CompanyInventors: Jeffrey Alan Dodge, Kennan Joseph Fahey, Charles David Jones, Charles Willis Lugar, III
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Patent number: 5800733Abstract: The present invention is concerned with photo cross-linkable liquid crystalline compounds in the formula ##STR1## wherein for example: A,B,C,D,E,F independently is pyridine-2,5-diyl, pyrimidine-2,5-diyl, trans-1,4-cyclohexylene, trans-1,3-dioxane-2,5-diylZ.sup.1, Z.sup.2, Z.sup.7 independently is --(CH.sub.2).sub.s O--, --COO--, --(CH.sub.2).sub.s COO--Z.sup.3, Z.sup.4, Z.sup.8 independently is a single bond, --CH.sub.2 CH.sub.2 --, --CH.sub.2 O--Z.sup.5, Z.sup.6 independently is --(CH.sub.2).sub.s --m, n, q and r independently is 0, 1 or 2;s is a whole number of 1 to 16;R.sup.1, R.sup.2 independently is CH.sub.2 .dbd.CH--COO--, CH.sub.2 .dbd.C(CH.sub.3)--COO--R.sup.3 is H, CH, COOC.sub.n H.sub.2n+1, CnH.sub.2n+1 ; n=1 . . . 10X.sup.1, X.sup.2 and X.sup.3 independently is hydrogen, halogen, cyano or lower alkyl.The invention is also related to liquid crystalline mixtures and their use for electro-optical purpose.Type: GrantFiled: July 25, 1996Date of Patent: September 1, 1998Assignee: Rolic AGInventor: Stephen Kelly
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Patent number: 5800734Abstract: A compound of the formula ##STR1## wherein R is C.sub.1 -C.sub.7 alkyl or C.sub.2 -C.sub.12 alkenyl; rings A and B each independently are 1,4-phenylene,trans-1,4-cyclohexylene or trans-1,3-dioxane-2,5-diyl;Z.sup.1 is a single bond or --CH.sub.2 CH.sub.2 --; andZ.sup.2 is a single bond, --CH.sub.2 CH.sub.2 --, --OCH.sub.2 --,--C.tbd.C--, --COO-- or --OOC--; andm, n are 0 or 1, with the proviso that m+n.ltoreq.1;as well as liquid crystalline mixtures which contain such compounds and the use of such compounds and, respectively, mixtures for electro-optical display devices.Type: GrantFiled: March 4, 1996Date of Patent: September 1, 1998Assignee: Rolic AGInventors: Richard Buchecker, Guy Marck
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Patent number: 5792762Abstract: The invention provides dihydronaphthofluorene compounds, formulations, and methods of inhibiting bone loss or bone resorption, particularly osteoporosis, and cardiovascular-related pathological conditions.Type: GrantFiled: September 19, 1997Date of Patent: August 11, 1998Assignee: Eli Lilly and CompanyInventors: Henry Uhlman Bryant, Thomas Alan Crowell, Charles David Jones
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Patent number: 5750577Abstract: Novel medicinally-useful compounds are provided herein. These compounds include isomeric cyclic tetramers of formaldehyde and 1-naphthol, and the derivatives or analogues of such cyclic tetramers, and linear oligomers of chromotropic acid, or its derivatives or analogues with naphthalene.Type: GrantFiled: December 5, 1996Date of Patent: May 12, 1998Assignee: Seabright Corporation LimitedInventor: Paris Georghiou
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Patent number: 5741438Abstract: Optically active biphenyl derivatives including optically active biphenyl carboxylic acid derivative, hydroxybiphenyl derivative, alkoxybiphenylalkanol derivative and alkoxybiphenylalkanol derivative have the following structural formula: ##STR1## wherein R.sup.1 represents an alkyl group of 3-20 carbon atoms, R.sup.2 represents an alkyl group or alkoxyalkyl group of 1-20 carbon atoms which may optionally be substituted with at least one halogen atom. X represents --O--, --COO-- or --OCO--, m represents 0 or 1, n represents an integer of 1-6 and p represents 0 or 1, and the * mark represents an asymmetric carbon atom. These optically active biphenyl derivatives are useful as a ferroelectric liquid crystal material or its component having a sufficient spontaneous polarization and by which a high speed response is possible and which further exhibits a ferroelectric liquid crystal phase in a temperature region around room temperature.Type: GrantFiled: May 30, 1995Date of Patent: April 21, 1998Assignee: Sumitomo Chemical Company, LimitedInventors: Isao Kurimoto, Takayuki Higashii, Shoji Toda, Masayoshi Minai, Chizu Sekine, Takeshi Tani
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Patent number: 5571449Abstract: Partially fluorinated benzene derivatives of the formula I ##STR1## in which R, A.sup.1, A.sup.2, Z.sup.1, Z.sup.2, L.sup.1, L.sup.2 and m are as defined in claim 1, are suitable as components of liquid-crystalline media.Type: GrantFiled: January 19, 1995Date of Patent: November 5, 1996Assignee: Merck Patent Gesellschaft mit beschrankter HaftungInventors: Ekkehard Bartmann, Herbert Plach, Rudolf Eidenschink
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Patent number: 5447659Abstract: Disclosed are novel active benzene derivatives represented by the general formula (I): ##STR1## (wherein X represents --CCO--, --OCO--, --CH.sub.2 C-- or --OCH.sub.2 --; A represents a hydrogen atom, a halogen atom or an alkyl or alkoxyl group having 1 to 20 carbon atoms; R represents an alkyl group having 1 to 20 carbon atoms; l and m each represents a number of 1 or 2, n represents a number of 0 or 1, but when n is 0 the sum of l and m is 3 or less; and * indicates asymmetric carbon atom), a process for producing the same, liquid-crystalline substances containing said derivatives as active ingredient, and optical switching elements utilizing the liquid crystal compositions containing said liquid-crystalline substances.Type: GrantFiled: May 31, 1994Date of Patent: September 5, 1995Assignee: Sumitomo Chemical Company, LimitedInventors: Takayuki Higashii, Masayoshi Minai
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Patent number: 5386017Abstract: Novel alkenes leading to light producing 1,2-dioxetanes of the formula ##STR1## wherein ArOX is an aryl ring substituted with an X oxy group and A are passive organic groups which allow the 1,2-dioxetane to produce light when triggered by removing X. X is a chemically labile group which is removed by an activating agent. The 1,2-dioxetane compounds can be triggered to produce light at room temperatures.Type: GrantFiled: February 26, 1990Date of Patent: January 31, 1995Assignee: Board of Governors of Wayne State UniversityInventor: Arthur P. Schaap
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Patent number: 5374376Abstract: Disclosed are herein optically active aromatic compounds represented by the formula (I): ##STR1## wherein X represents --COO-- or --OCO--; Y represents --COO--, --OCO-- or --O--; R.sub.2 represents an alkyl or alkoxyalkyl group having 1 to 20 carbon atoms unsubstituted or substituted by a halogen atom; R.sub.1 represents an alkyl group having 3 to 20 carbon atoms;Z represents ##STR2## wherein p represents a number of 1 to 5 and * indicates an asymmetric carbon atom; l and k each represents a number of 1 or 2; m and s each represents a number of 0 or 1, which are useful as a liquid crystal.Type: GrantFiled: September 21, 1993Date of Patent: December 20, 1994Assignee: Sumitomo Chemical Company, LimitedInventors: Takayuki Higashii, Isao Kurimoto, Shoji Toda, Masayoshi Minai, Shigeaki Chika, Koichi Fujisawa, Kiyoshi Imamura
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Patent number: 5338484Abstract: Disclosed are novel active benzene derivatives represented by the general formula (I): ##STR1## (wherein X represents --COO--, --OCO--, --CH.sub.2 O-- or --OCH.sub.2 --; A represents a hydrogen atom, a halogen atom or an alkyl or alkoxyl group having 1 to 20 carbon atoms: R represents an alkyl group having 1 to 20 carbon atoms; l and m each represents a number of 1 or 2, n represents a number of 0 or 1, but when n is 0 the sum of l and m is 3 or less; and * indicates asymmetric carbon atom), a process for producing the same, liquid-crystalline substances containing said derivatives as active ingredient, and optical switching elements utilizing the liquid crystal compositions containing said liquid-crystalline substances.Type: GrantFiled: October 18, 1993Date of Patent: August 16, 1994Assignee: Sumitomo Chemical Company, LimitedInventors: Takayuki Higashii, Masayoshi Minai
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Patent number: 5334766Abstract: A process for the resolution of racemic diphosphine oxides into the optically active antipodes by reacting the racemate with a resolving agent comprising using a carbamate or thiocarbamate of an optically active .alpha.-hydroxycarboxylic acid or .alpha.-aminocarboxylic acid as the resolving agent.Type: GrantFiled: April 9, 1992Date of Patent: August 2, 1994Assignee: Hoffmann-La Roche Inc.Inventors: Marco Cereghetti, Alain Rageot
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Patent number: 5328643Abstract: The invention relates to optically active compounds represented by the general formula I ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, Q.sub.1, Q.sub.2, Q.sub.3, and M are defined as in the specification, methods and intermediates for their preparation, liquid crystal compositions comprising at least one optically active compound of formula I and their use in electrooptical display, switching and modulation devices.Type: GrantFiled: February 26, 1992Date of Patent: July 12, 1994Assignees: Takeda Chemical Industries, Ltd., Hitachi, Ltd.Inventors: Yuka Sudo, Katsumi Kondo, Teruo Kitamura, Koichi Matsumura, Mitsuru Kawada, Yoshihiro Sugihara
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Patent number: 5306837Abstract: Novel intermediates useful in the preparation of the optically active antiviral compound [1R-(1.alpha.,2.beta.,3.alpha.)]-2-amino-9-[2,3-bis(hydroxymethyl)cyclobut yl]-1,9-dihydro-6H-purin-6-one are described.Type: GrantFiled: July 15, 1993Date of Patent: April 26, 1994Assignee: E. R. Squibb & Sons, Inc.Inventors: Gregory S. Bisacchi, Toomas Mitt
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Patent number: 5290793Abstract: Dihydrocaffeic acid derivatives are here disclosed which are applicable as medicines having excellent absorbency in the case of oral administration and good concentration retention in blood.The disclosed compounds have the function to induce the production and secretion of a nerve growth factor (NGF) in the brain tissue, and therefore they are effective as medicines for the progression inhibition and therapy of regressive disorders of the central nervous system.Type: GrantFiled: October 29, 1992Date of Patent: March 1, 1994Assignee: Mitsui Toatsu Chemicals, IncorporatedInventors: Nobuyuki Fukazawa, Hajime Iizuka, Osamu Yano, Yukio Miyama
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Patent number: 5230830Type: GrantFiled: April 15, 1992Date of Patent: July 27, 1993Assignee: The Secrteary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern IrelandInventors: David Coates, Simon Greenfield, Ian C. Sage
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Patent number: 5177112Abstract: Certain novel compounds having the structural formula ##STR1## wherein R.sub.2, R.sub.3 and R.sub.4 are each selected from the group consisting of H and OA; A is H or is selected from the group consisting of hydrocarbyl radicals, e.g. lower alkyl radicals, i.e. methyl, ethyl, propyl, etc., or ##STR2## wherein R.sub.5 is selected from the group consisting of hydrocarbyl radicals, e.g. alkyl and aromatic residues; n is 2 or 3; and R.sub.1 is selected from the group consisting of organic radicals having fused aromatic rings, that is, radicals comprising at least two rings that share a pair of carbon atoms or share a carbon and nitrogen atom are useful for inducing a dopaminergic response and reducing the intraocular pressure in a mammal.Type: GrantFiled: September 10, 1991Date of Patent: January 5, 1993Assignee: Whitby Research, Inc.Inventor: Alan S. Horn
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Patent number: 5175342Abstract: The present invention relates to esters of 3-demethylthiocolchicine and N-acyl analogs thereof having the following formula: ##STR1## wherein R is O-CO-alkyl, O-CO-CH.sub.2 Oalkyl, O-CO-Phenyl, O-COOalkyl; the alkyl group having from 1 to 4 carbon atoms and the Ac group representing acetyl and its higher homologs, benzoyl, alkoxyacetyl, or haloacetyl.The invention further relates to processes for preparing these ester compounds, pharmaceutical compositions thereof and methods for treating diseases such as gout, Mediterranean fever and liver disorders.Type: GrantFiled: April 18, 1991Date of Patent: December 29, 1992Assignee: The United States of America as represented by the Department of Health and Human ServicesInventor: Arnold Brossi
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Patent number: 5167863Abstract: There are disclosed an optically active compound represented by the general formula: ##STR1## wherein n, R.sub.1, R.sub.2, R.sub.3, R.sub.4, Q.sub.1, Q.sub.2, Q.sub.3, and M are defined as in the detailed explanation, and *-marked carbon atoms are each an asymmetric carbon atom; a liquid crystal composition comprising at least one optically active compound of said general formula and a liquid crystal optical modulator using the composition thereof.Type: GrantFiled: July 16, 1990Date of Patent: December 1, 1992Assignees: Hitachi, Ltd., Takeda Chemical Industries, Ltd.Inventors: Teruo Kitamura, Katsumi Kondo, Akio Mukoh, Koichi Matsumura, Mitsuru Kawada, Yoshihiro Sugihara
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Patent number: 5151414Abstract: Compounds of formula ##STR1## (wherein R, R.sub.1, R.sub.2, R.sub.3, n, m and p have the meanings reported in the specification), their preparation and the compositions for pharmaceutical use containing them as active ingredient are described.The compounds of formula I have dopaminergic vasodilator activity and they may be used in pharmaceutical field.Type: GrantFiled: July 31, 1991Date of Patent: September 29, 1992Assignee: SIMES Societa Italiana Medicinali e Sintetici S.p.A.Inventors: Cesare Casagrande, Gabriele Norcini, Francesco Santangelo, Claudio Semeraro
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Patent number: 5137653Abstract: This invention provides a novel alkanoyl ester compound represented by general formula (I): ##STR1## (wherein A is of --, --O--, ##STR2## B is ##STR3## l and m are 1 or 2 provided that both are not simultaneously 2, k and n are an integer of 1 or more, respectively, provided that k>n, and R is an alkyl group), a liquid crystal composition containing this compound, a novel alkanoylphenyl compound or a novel alkanoylbiphenyl compound as an intermediate for the production of the above compound, and a method of producing the same. These novel alkanoyl ester compounds are excellent in the stability against light and the like and can take a liquid crystal state at a wide temperature range. Particularly, these compounds form liquid crystals of ferroelectricity having a large spontaneous polarization and a fast response rate by introducing an optically active group into the compound, so that they develop a very excellent effect as a starting material for optoelectronics and its related elements.Type: GrantFiled: October 18, 1991Date of Patent: August 11, 1992Assignee: Nippon Mining Co., Ltd.Inventors: Toshihiro Hirai, Atsushi Yoshizawa, Isa Nishiyama, Mitsuo Fukumasa, Nobuyuki Shiratori, Akihisa Yokoyama
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Patent number: 5133896Abstract: Novel cyanohydrin derivatives of general formula (I) wherein R.sup.1 is hydrogen, alkyl, alkoxy, perfluoroalkyl or perfluoroalkoxy, R.sup.2 is alkyl, r is 1 to 10, n and m are 0 or 1, provided if both n and m are 0 then X is (II) or (III), where (F) indicates one or more optional fluorines, p is 0 or 1, Z is a single bond if p is 0 and COO if p is 1; and if one or both of n or m are 1 then X is (IV), where each ring A, B and C is phenyl, fluoro- or chloro-phenyl, cyclohexyl, pyrimidyl, pyridyl, or dioxanyl, A, B and C are single bonds or linking groups, and (a+b+c) is 2 or 3. Liquid crystal materials containing these compounds are also described.Type: GrantFiled: July 11, 1990Date of Patent: July 28, 1992Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern IrelandInventors: David Coates, Simon Greenfield, Ian C. Sage
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Patent number: RE34726Abstract: The subject application discloses a chiral nonracemic composition of the general formula:R.sub.1 --Ar--O--CH.sub.2 --C*HX--C*HY--CH.sub.2 --O--R.sub.2wherein R.sub.1 is an achiral tail of two to sixteen carbons; Ar is an achiral FLC core of at least two rings; * denotes a chiral carbon; X and Y are halogens; and R.sub.2 is one to ten carbon atoms. The --O--CH.sub.2 --C*HX--C*HY--CH.sub.2 --O-- segment comprises the chiral proximal segment of the chiral tail; the proximal segment is selected from the enantiomers 2R,3R-dihalo and 2S,3S-dihalo. R.sub.2 is the distal segment of the chiral tail.Type: GrantFiled: April 29, 1993Date of Patent: September 13, 1994Assignee: Displaytech, Inc.Inventors: Michael Wand, William N. Thurmes, David Walba