Patents Examined by Jane Oswecki
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Patent number: 6262151Abstract: Benzotriazole UV absorbers which are substituted at the 5-position of the benzo ring by an electron withdrawing group exhibit enhanced durability and very low loss rates when incorporated into automotive coatings. This is particularly the case when the 3-position of the phenyl ring is also substituted by phenyl or phenylalkyl such as &agr;-cumyl. Compounds where the 5-position of the benzo ring are substituted by perfluoroalkyl such as trifluoromethyl are particularly of interest for both their enhanced durability and for their excellent solubility and excellent color properties in some thermoplastic compositions when the phenyl ring is substituted at the 3-position by hydrogen or tert-alkyl.Type: GrantFiled: July 12, 2000Date of Patent: July 17, 2001Assignee: Ciba Specialty Chemicals CorporationInventors: Ramanathan Ravichandran, Joseph Suhadolnik, Mervin G. Wood, Anthony Debellis, Robert E. Detlefsen, Revathi Iyengar, Jean-Pierre Wolf
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Patent number: 6252084Abstract: A class of novel 1H-indole-3-acetamides is disclosed together with the use of such indole compounds for inhibiting sPLA2 mediated release of fatty acids for treatment of conditions such as septic shock.Type: GrantFiled: October 31, 1997Date of Patent: June 26, 2001Assignee: Eli Lilly and CompanyInventors: Nicholas J. Bach, Robert D. Dillard, Susan E. Draheim, Robert B. Hermann, Richard W. Schevitz
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Patent number: 6248768Abstract: This invention provides a compound having both IL-4 production inhibitory activity and PDE (IV) inhibitory activity, represented by formula (I): and a pharmaceutical composition or a therapeutic agent for acute and chronic inflammatory diseases and an anti-allergic or anti-inflammatory agent, each of which comprising an effective amount of the compound and a pharmacological carrier. It also provides use of the compound of formula (I) for the production of the aforementioned pharmaceutical composition or therapeutic agent for acute and chronic inflammatory diseases and anti-allergic or anti-inflammatory agent, and a method for treating acute and chronic inflammatory diseases.Type: GrantFiled: July 7, 1999Date of Patent: June 19, 2001Assignee: Taiho Pharmaceutical Co., Ltd.Inventors: Shozo Yamada, Toshiyuki Hosoya, Kazuhiro Kitagawa, Shin-ichi Inoue, Mamoru Kiniwa, Tetsuji Asao
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Patent number: 6245914Abstract: The present invention relates to processes for the conversion of nitrites to amidines in the preparation of compounds which are antagonists of the platelet glycoprotein IIb/IIIa fibrinogen receptor complex. The compounds described herein are potent thrombolytics and useful for the inhibition of platelet aggregation in the treatment of thromboembolic disorders.Type: GrantFiled: July 1, 1999Date of Patent: June 12, 2001Assignee: DuPont Pharmaceuticals CompanyInventors: Philip Ma, Pasquale N. Confalone, Hui-Yin Li
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Patent number: 6242609Abstract: A method for manufacturing a color coupler used in a silver halide photographic light-sensitive material using an ammonium trihalide. Said method for manufacturing the color coupler comprising the following step: a step for halogenating a coupling position of a four equivalent coupler using a halogenating agent, wherein said halogenating agent is said ammonium trihalide.Type: GrantFiled: April 7, 1999Date of Patent: June 5, 2001Assignee: Konica CorporationInventor: Fumio Ishii
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Patent number: 6232476Abstract: This invention provides an improved process for cis-1-{2-[4-(6-methoxy-2-phenyl-1,2,3,4-tetrahydronaphthalen-1-yl)phenoxy]ethyl}pyrrolidine which is an intermediate for the preparation of (-)cis-6-phenyl-5-[4-(2-pyrrolidin-1-yl-ethoxy)-phenyl]-5,6,7,8-tetrahydronaphthalene-2-ol which is useful for the treatment of osteoporosis.Type: GrantFiled: May 19, 2000Date of Patent: May 15, 2001Assignee: Pfizer Inc.Inventor: Charles K. F. Chiu
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Patent number: 6229020Abstract: A new reagent for preparation of a caged compound in accordance with the present invention is a compound having, as a basic structure, an N-succinimidyl cinnamate structure expressed by the following formula 1: Another reagent for preparation of a caged compound in accordance with the present invention is a compound having, as a basic structure, a p-nitrophenyl cinnamate structure expressed by the following formula 3:Type: GrantFiled: January 11, 2000Date of Patent: May 8, 2001Assignee: Laboratory of Molecular BiophotonicsInventor: Hirofumi Shiono
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Patent number: 6121306Abstract: Racemic (.+-.)-1-azobicyclo[2.2.1]heptan-3-one may be efficiently resolved into its (1S,4R)- and (1R,4S)-1-azabicyclo[2.2.1]heptan-3-one isomers by formation of di-p-toluoyl hemitartrate salts by combination with di-p-toluoyl-L-tartaric acid and di-p-toluoyl-D-tartaric acid, respectively. Selective crystallization using one of the di-p-toluoyltartaric acids in less than stoichiometric amount in a suitable solvent mixture allows isolation of the desired isomer as its respective di-p-toluoyl hemitartrate in high isomeric purity. The isolated hemitartrates are storage stable and may be used as such in the preparation of pharmaceuticals and other biologically active compounds, or may be used to provide the free base of the respective 1-azabicyclo[2.2.1]heptan-3-one isomer.Type: GrantFiled: September 29, 1999Date of Patent: September 19, 2000Assignee: Warner-Lambert CompanyInventor: Denis Martin Sobieray
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Patent number: 6111133Abstract: Substituted styrenes are synthesized by a simple, low temperature technique. A protected phenol styrene is reacted with an acid anhydride, dicarbonate, a halogen substituted alkyl, or an acid chloride in the presence of base to form a carbonyl substituted styrene. Unexpected yield decrease due to distillation is avoided because the product is sufficiently pure to be used without such distillation.Type: GrantFiled: September 23, 1992Date of Patent: August 29, 2000Assignee: Lucent Technologies Inc.Inventor: Francis Michael Houlihan
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Patent number: 6093740Abstract: A method for reducing or inhibiting vascular permeability especially the increased vascular permeability associated with VPF/VEGF, and dermal edema exhibited with bullous phemigoid, erythema multiforme, dermatitis herpetiformis, contact dermatitis/delayed hypersensitivity is disclosed, particularly using the .beta.-isozyme selective PKC inhibitor, (S)-3,4-[N,N'-1,1'-((2"-ethoxy)-3'"(O)-4'"-(N,N-dimethylamino)-butane)-bis -(3,3'-indolyl)]-1(H)-pyrrole-2,5-dione and its pharmaceutically acceptable salts.Type: GrantFiled: April 9, 1998Date of Patent: July 25, 2000Assignee: Eli Lilly and CompanyInventors: Michael Robert Jirousek, Lawrence E. Stramm, Louis Vignati, Douglas Kirk Ways
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Patent number: 6034273Abstract: There is provided a process for the preparation of 2-aryl-5-(perfluoroalkyl)pyrrole compounds from N-(arylmethylene)-1-chloro-1-(perfluoroalkyl)methylamine compounds. The 2-aryl-5-(perfluoroalkyl)pyrrole compounds are useful for the control of insect and acarid pests, and may also be used to prepare other pesticidal arylpyrrole compounds.The present invention provides N-(arylmethylene)-1-chloro-1-(perfluoroalkyl)methylamine compounds which are useful as intermediates in the preparation of arylpyrrole compounds.Type: GrantFiled: June 29, 1999Date of Patent: March 7, 2000Assignee: American Cyanamid CompanyInventor: Venkataraman Kameswaran
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Patent number: 6011161Abstract: There is provided a process for the preparation of 2-aryl-5-(perfluoroalkyl)pyrrole compounds from N-(perfluoroalkylmethyl)arylimidoyl chloride compounds. The 2-aryl-5-(perfluoroalkyl)pyrrole compounds are useful for the control of insect and acarid pests, and may also be used to prepare other pesticidal arylpyrrole compounds. In addition, the present invention provides N-(perfluoroalkylmethyl)arylimidoyl chloride compounds which are useful as intermediates in the preparation of arylpyrrole compounds.Type: GrantFiled: February 9, 1999Date of Patent: January 4, 2000Assignee: American Cyanamid CompanyInventor: Venkataraman Kameswaran
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Patent number: 5932142Abstract: A process for preparing benzotriazolyl-alkylene bisphenol compounds which comprises reacting a 2-hydroxyphenylbenzotriazole and a 2,4-substituted phenol with an aldehyde in the presence of a basic catalyst and an amine compound; benzotriazolyl-alkylene bisphenol compounds obtained by the process; and stabilized organic materials containing the resulting benzotriazolyl-alkylene bisphenol compounds in an amount of 0.01-10 percent by weight. It is possible to prepare the benzotriazolyl-alkylene bisphenol compounds at a high yield, and organic materials can be effectively stabilized with the resulting compounds.Type: GrantFiled: December 8, 1997Date of Patent: August 3, 1999Assignee: Johoku Chemical Co., Ltd.Inventors: Toshiyuki Yamauchi, Eisuke Kanagawa, Hideo Aoki, Kazuyuki Ishihara
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Patent number: 5919400Abstract: This invention relates to a stabilized isothiazolone solution and more particularly, to a stabilized isothiazolone solution comprising isothiazolone expressed by the following formula (I), stabilizer expressed by the following formula (II), and organic solvent diffusing these compounds effectively: ##STR1## In these formulae, n, R.sup.1, R.sup.2, R.sup.3, R.sup.4, and R.sup.5 have the same definitions as defined in the detailed description of this application, respectively.Type: GrantFiled: October 2, 1997Date of Patent: July 6, 1999Assignee: Sunkyong Industries Co., Ltd.Inventors: Seung Hwan Kim, Jin Soo Lim, Jin Man Kim, Myung Ho Cho
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Patent number: 5776977Abstract: Compounds of formula I, ##STR1## wherein the substituents R.sub.1 -R.sub.4 and a have the given meanings and show an activity against inflammatory conditions.Type: GrantFiled: August 5, 1996Date of Patent: July 7, 1998Assignee: Hoechst AktiengesellschaftInventors: Ramachandra Ganapati Naik, Vilas Narayan Mumbaikar, Rangarajan Vasumathy, Aftab Dawoodbhai Lakdawala, Mandakini Vithalrao Shirole, Bansi Lal, Jurgen Blumbach, Klaus Ulrich Weithmann, Robert Ryder Bartlett
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Patent number: 5717037Abstract: A perfluoro unsaturated nitrile compound represented by the following general formula:CF.sub.2 .dbd.CFO(CF.sub.2)nOCF(CF.sub.3)CNis produced by reaction of chlorine or bromine to a perfluoro unsaturated carboxylic acid ester represented by the following general formula:CF.sub.2 .dbd.CFO(CF.sub.2)nOCF(CF.sub.3)COORfollowed by reaction with ammonia, thereby converting the ester group to an acid amide group, and then conducting a dehydration reaction and a dehalogenation reaction of the resulting perfluoro unsaturated carboxylic acid amide represented by the following general formula:CF.sub.2 .dbd.CFO(CF.sub.2)nOCF(CF.sub.3)CONH.sub.2in any desired sequence, and is effectively applied as a cross-linking site monomer for fluorine-containing elastomers.Type: GrantFiled: October 18, 1996Date of Patent: February 10, 1998Assignees: Nippon Mektron Limited, The Central Synthetic Rubbers Research InstituteInventors: Satoru Saito, Riichi Iwa, Haruyoshi Tatsu, Rondarev Dmitrii Stefanovich, Sokolov Sergey Vasilyevich, Berenblit Vsevolod Vulfovich
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Patent number: 5589502Abstract: A compound represented by the formula [I]: ##STR1## wherein R.sup.3 represents a lower alkanoyl group; R.sup.4 represents a substituted or unsubstituted benzoyl group; ring A represents a substituted or unsubstituted cyclopropane ring; X represents a single bond or a group represented by --O--, --S-- or --NH--; R represents a substituted or unsubstituted lower alkyl group (wherein said lower alkyl group may have a cycloalkyl moiety), a substituted or unsubstituted aryl group or a substituted or unsubstituted aromatic heterocyclic group; E represents hydrogen atom or a group represented by --CO(CH.sub.2).sub.Type: GrantFiled: November 15, 1995Date of Patent: December 31, 1996Assignee: Tanabe Seiyaku Co., Ltd.Inventors: Kenji Tsujihara, Tomiki Hashiyama, Motoaki Ohashi, Noriyuki Nakanishi
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Patent number: RE36718Abstract: An object of the present invention is to provide a safe method of commercially producing optically active aminoalcohol derivatives, which serve as intermediates for the synthesis of medicinal chemicals such as the immunopotentiating anticancer agent bestatin, in a simple and easy manner in high yields and with high levels of selectivity.The present invention consists in a method of producing 3-amino-1-nitro-4-phenyl-2-butanol derivatives of the general formula (1) ##STR1## wherein R.sup.1 and R.sup.2 each independently represents a hydrogen atom or an amino group protecting group, and a method of producing 3-amino-2-hydroxy-4-phenylbutyric acid derivatives derivable therefrom.Type: GrantFiled: March 30, 1999Date of Patent: May 30, 2000Assignee: Kaneka CorporationInventors: Masaru Mitsuda, Shigeo Hayashi, Junzo Hasegawa, Noboru Ueyama, Takehisa Ohashi, Masakatsu Shibasaki