And Chalcogen Bonded Directly To The Other Ring Carbon Of The Five-membered Hetero Ring Which Is Adjacent To The Ring Nitrogen (e.g., Succinimide, Etc.) Patents (Class 548/545)
-
Publication number: 20020091068Abstract: Succinimide-acid compounds prepared by reaction of hydrocarbyl-substituted succinic acylating agents with alpha-omega amino acids are disclosed, as well as derivatives thereof useful as lubricity additives, lubricant dispersants, friction modifiers, liquid hydrocarbonaceous fuel detergents, antioxidants and alkali and/or alkaline-earth metal detergents.Type: ApplicationFiled: November 8, 2001Publication date: July 11, 2002Inventor: John T. Loper
-
Patent number: 6392104Abstract: In the presence of an imide compound (e.g., N-hydroxyphthalimide) shown by the formula (2): wherein R1 and R2 independently represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, a cycloalkyl group; or R1 and R2 may bond together to form a double bond or an aromatic or non-aromatic ring; Y is O or OH and n=1 to 3; or the imide compound and a co-catalyst (e.g., a transition metal compound), an adamantane derivative having a functional group such as a nitro group, an amino group, a hydroxyl group, a carboxyl group, a hydroxymethyl group and an isocyanato group is oxidized with oxygen. According to the above method, an adamantane derivative having a hydroxyl group together with a functional group such as a nitro group, an amino group, a hydroxyl group, a carboxyl group, a hydroxymethyl group and an isocyanato group is efficiently obtained.Type: GrantFiled: November 10, 1998Date of Patent: May 21, 2002Assignee: Daicel Chemical Industries, Ltd.Inventors: Yasutaka Ishii, Tatsuya Nakano, Naruhisa Hirai
-
Patent number: 6388094Abstract: A synthesis is described for intermediates which are readily amenable to the large scale preparation of hydroxyethylurea-based chiral HIV protease inhibitors. The method includes forming a diastereoselective epoxide from a chiral alpha amino aldehyde.Type: GrantFiled: November 1, 1999Date of Patent: May 14, 2002Assignee: G.D. Searle & Co.Inventors: John S Ng, Claire A. Przybyla, Richard A Mueller, Michael L Vazquez, Daniel P Getman
-
Patent number: 6365615Abstract: Novel compounds of the formula I which are useful for treating or preventing inflammatory and immune cell-mediated diseases. Exemplary compounds are: 2-(3,5-Dichlorophenyl)-7-(R*)-phenyl-7a-(R*)-tetrahydropyrrolo[1,2-c]imidazole-1,3-dione; 2-(3,5-Dichlorophenyl)-7a-(R*)-methyl-7-(R*)-phenyl-tetrahydropyrrolo[1,2-c]imidazole-1,3-dione; and, 7-(R*)-(4-Bromophenyl)-2-(3,5-dichlorophenyl)-7a-(R*)-tetrahydropyrrolo[1,2-c]imidazole-1,3-dione.Type: GrantFiled: June 28, 2000Date of Patent: April 2, 2002Assignee: Boehringer Ingelheim Pharmaceuticals, Inc.Inventors: Terence Alfred Kelly, Jiang-Ping Wu, Daniel Kuzmich
-
Patent number: 6352566Abstract: Ethers of polyalkyl or polyalkenyl N-hydroxyalkyl succinimides having the formula: or a fuel soluble salt thereof; wherein R is a polyalkyl or polyalkenyl group having an average molecular weight in the range of about 450 to about 5,000; n is an integer from 2 to 5; and Z is a moiety selected from the group consisting of wherein R1 is a hydroxy, nitro, cyano or —(CH2)x—NR3R4, wherein R3 and R4 are independently hydrogen or lower alkyl of 1 to 6 carbon atoms and x is 0 or 1; and R2 is hydrogen, hydroxy, nitro, cyano or —(CH2)y—NR5R6, wherein R5 and R6 are independently hydrogen or lower alkyl of 1 to 6 carbon atoms and y is 0 or 1. The compounds of formula I are useful as fuel additives for the prevention and control of engine deposits.Type: GrantFiled: September 1, 2000Date of Patent: March 5, 2002Assignee: Chevron Chemical Company LLCInventor: Richard E. Cherpeck
-
Patent number: 6348600Abstract: A method for making an optically active 3-aminopyrrolidine-2,5-dione derivative represented by the formula (3) includes cyclizing an optically active asparagine ester derivative represented by the formula (1) or (2), or an acid salt thereof. A method for making an optically active 3-aminopyrrolidine derivative represented by the formula (9) includes reducing the optically active 3-aminopyrrolidine-2,5-dione derivative represented by the formula (3). A method for making an optically active 3-aminopyrrolidine derivative includes hydrogenolyzing the optically active 3-aminopyrrolidine derivative represented by the formula (9).Type: GrantFiled: February 20, 2001Date of Patent: February 19, 2002Assignee: Toray Industries, Inc.Inventors: Takae Ono, Haruyo Sato
-
Publication number: 20020010204Abstract: The invention relates to novel phenyl-substituted cyclic ketoenols of the formula (I) 1Type: ApplicationFiled: March 15, 2001Publication date: January 24, 2002Inventors: Folker Lieb, Reiner Fischer, Thomas Bretschneider, Michael Ruther, Alan Graff, Udo Schneider, Christoph Erdelen, Ulrike Wachendorff-Neuman, Wolfram Andersch, Andreas Turberg
-
Patent number: 6303795Abstract: A surfactant which is the reaction product of a hydrocarbyl-substituted succinic anhydride or a reactive equivalent thereof with at least one water-dispersible amine-terminated poly(oxyalkylene), is effective for use in soil remediation.Type: GrantFiled: April 28, 2000Date of Patent: October 16, 2001Assignee: The Lubrizol CorporationInventors: Richard W. Jahnke, Bryan A. Grisso
-
Publication number: 20010018441Abstract: The present invention provides an AP-1 activation inhibitor, NF-kappa B activation inhibitor, inflammatory cytokine production inhibitor, matrix metalloprotease production inhibitor, inflammatory cell adhesion molecule expression inhibitor, anti-inflammatory agent, antirheumatic agent, immunosuppressant, cancer metastasis inhibitor, remedy for arteriosclerosis and antiviral agent which contain the benzene derivative of the following general formula (I) or a pharmaceutically acceptable salt thereof as an active ingredient.Type: ApplicationFiled: March 12, 2001Publication date: August 30, 2001Applicant: Ajinomoto Co., Inc.Inventors: Yukio Iino, Kohichi Fujita, Takashi Tsuji, Ariko Kodaira, Kenji Takehana, Tsuyoshi Kobayashi, Takashi Yamamoto
-
Patent number: 6277997Abstract: The present invention relates to a process for the preparation of compounds of formula I wherein R1 and R2 are as defined in the specification as well as to the novel intermediates obtained by said process.Type: GrantFiled: October 20, 2000Date of Patent: August 21, 2001Assignee: Hoffmann-La Roche Inc.Inventors: Michelangelo Scalone, Ulrich Zutter
-
Patent number: 6262222Abstract: Copolymers containing N-vinyllactam derivatives protected at 3-position are provided and represented by the following formula. The copolymers are used as a photoresist material suitable for deep uv process so that high sensitivity and resolution can be obtained. In addition, ultrafine circuits can be formed and an exceptional improvement in PED stability can be accomplished by use of the photoresist.Type: GrantFiled: October 8, 1998Date of Patent: July 17, 2001Assignee: Hyundai Electronics Industries Co., Ltd.Inventors: Jin Baek Kim, Min Ho Jung, Jong Ho Cheong
-
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
-
Patent number: 6174989Abstract: The present invention relates to rubber compounds containing polymeric bis-succinimide polysulfides of the formula: wherein R is selected from the group consisting of phenylene and xylylene; R1 is selected from the group consisting hydrogen and alkyls having from 1 to 18 carbon atoms; x is an integer of from 2 to 8 and y is an integer of from 2 to 10.Type: GrantFiled: June 25, 1999Date of Patent: January 16, 2001Assignee: The Goodyear Tire & Rubber CompanyInventors: Richard Michael D'Sidocky, Lawson Gibson Wideman
-
Patent number: 6160128Abstract: Novel acetylating and tritioacetylating reagents suitable for preparation of nonlabelled and radiolabelled organic compounds. N-acetoxynaphthalimide, N-tritioacetoxyphthalimide, N-tritioacetoxysuccinimide, N-tritioacetoxynaphthalimide and processes of their preparation. The invention also concerns synthesis of nonlabelled acetylated and tritioacetylated organic compounds from precursors containing a free --NH.sub.2, --SH or --OH group.Type: GrantFiled: October 23, 1998Date of Patent: December 12, 2000Assignee: The Regents of the University of CaliforniaInventors: Manoucher Saljoughian, Hiromi Morimoto, Philip G. Williams, Chit Than
-
Patent number: 6143902Abstract: A chemic compound having the formula: ##STR1## wherein P.sub.1 is a hydroxyl protecting group, R.sub.1 is an alkyl group, an olefinic group, an aromatic group, Ph, PhCH.sub.2, an O-alkyl group, an O-olefinic group, an O-aromatic group, O--Ph, or O--CH.sub.2 Ph, and wherein Z is an N-imido group. In particular, P.sub.1 may be selected from the group consisting of benzyl, benzyloxymethyl and benzoyl, and Z may be a heterocyclic N-imido group, preferably having 5 to 7 atoms in the ring and alternatively substituted with at least one electron withdrawing group, preferably selected from the group consisting of a chloro group, a fluoro group and a nitro group. In particular, it is contemplated that Z may be succinimido, phthalimido, 5-norbornene-2,3-dicarboxyimido, maleimido and substituted derivatives thereof.Type: GrantFiled: June 21, 1999Date of Patent: November 7, 2000Assignee: NaPro BioTherapeutics, Inc.Inventors: Jan Zygmunt, James D. McChesney, Madhavi C. Chander
-
Patent number: 6127427Abstract: Compounds of general formula (I) ##STR1## wherein X ia a --CO.sub.2 H, --NH(OH)CHO or --CONHOH group; R.sub.1 is a cylcoalkyl, cycloalkenyl or non-aromatic heterocyclic ring containing up to 3 heteroatoms, any of which may be (i) substituted by one ore more substituents selected from C.sub.1 -C.sub.6 alkyl, C.sub.2 -C.sub.6 alkenyl, halo, cyano (--CN), --CO.sub.2 H, --CO.sub.2 R, --CONH.sub.2, --CONHR, --CON(R).sub.2, --OH, --OR, oxo-, --SH, --SR, --NHCOR, and --NHCO.sub.2 R wherein R is C.sub.1 -C.sub.6 alkyl or benzyl and/or (ii) fused to a cycloalky or heterocyclic ring; and R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are as defined in specification are matrix metalloproteinase inhibitors.Type: GrantFiled: May 22, 1998Date of Patent: October 3, 2000Assignee: British Biotech Pharmaceuticals LimitedInventors: Fionna Mitchell Martin, Christopher Norman Lewis, Mark Whittaker
-
Patent number: 6114419Abstract: Fluorinated imides useful for imparting repellency of low surface tension fluids to thermoplastic polymers of formulae ##STR1## wherein R.sub.1 is F(CF.sub.2).sub.x --(CH.sub.2).sub.m, or F(CF.sub.2).sub.x SO.sub.2 N(R.sub.5) (CH.sub.2)p wherein x is from about 4 to about 20, m is from about 2 to about 6, p is from 1 to about 12, and R.sub.5 is an alkyl radical of from 1 to about 4 carbons;R.sub.2 is a linear, branched or cyclic alkylene or poly(oxyalkylene) hydrocarbon group having from about 2 to about 15 carbons;R.sub.3 is selected from the group consisting of F(CF.sub.2).sub.x --(CH.sub.2).sub.m, F(CF.sub.2).sub.x --(CH.sub.2).sub.m --OC(O)--(CH.sub.2).sub.n, and F(CF.sub.2).sub.x SO.sub.2 N(R.sub.5)(CH.sub.2).sub.p OC(O)(CH.sub.2).sub.n wherein x is from about 4 to about 20, m is from about 2 to about 6, n is about 2 to about 12, p is from 1 to about 12, and R.sub.5 is an alkyl radical of from 1 to about 4 carbons;R.sub.4 is an alkyl or alkenyl group of from about 4 to about 20 carbons, andR.sub.Type: GrantFiled: April 7, 1998Date of Patent: September 5, 2000Assignee: E. I. du Pont de Nemours and CompanyInventors: Theodor Arthur Liss, Kimberly Gheysen Raiford, Edward James Greenwood
-
Patent number: 6093820Abstract: A method of N-alkoxyalkylating ureides according to the invention comprises reacting a ureide of structure I ##STR1## with an alkylating agent of structure III ##STR2## in the presence of a basic catalyst in an aprotic reaction medium. The ureide may be a 5,5-disubstituted barbituric acid, or it may be phenytoin, glutethimide, and ethosuximide. The alkylating agent is an ester of a sulfonic acid. The base may be a hydride or amine. A preferred process comprises N-alkoxyalkylating 5,5-diphenyl-barbituric acid with methoxymethyl methanesulfonate in the presence of di-isopropyl ethyl amine and isolating the resultant N,N'-bismethoxymethyl-5,5-diphenyl-barbituric acid. The invention also contemplates the novel compounds N-methoxymethyl-5,5-diphenylbarbituric acid, N-methoxymethyl ethosuximide, and N-methoxymethyl glutethimide, and a method comprising administering them to a patient.Type: GrantFiled: October 2, 1997Date of Patent: July 25, 2000Assignee: Taro Pharmaceutical Industries Ltd.Inventors: Daniela Gutman, Hershel Herzog
-
Patent number: 6080839Abstract: The invention relates to a novel labeling reactant, suitable for labeling of a biospecific binding reactant using solid-phase synthesis. The invention further concerns new labeling methods. The novel labeling reactant has the formula (I) ##STR1## wherein -A- is a bivalent aromatic structure capable of absorbing light or energy and transferring the excitation energy to a lanthanide ion after the product made by the said solid-phase synthesis has been released from the used solid support, deprotected and converted to a lanthanide chelate;-G- is a bridge replacing a hydrogen atom in A;R is a protected amino acid residue --CH(NHX)COOH, where X is a transient protecting group, or its active ester, where said ester is e.g. an N-hydroxysuccinimido, p-nitrophenol or pentafluorophenol ester; andR' is --COOR'" where R'" is an alkyl of 1 to 4 carbon atoms, phenyl or benzyl, which phenyl or benzyl can be substituted or unsubstituted.Type: GrantFiled: June 25, 1998Date of Patent: June 27, 2000Assignee: Wallac OyInventors: Harri Takalo, Jari Hovinen, Veli-Matti Mukkala, Paivi Liitti, Heikki Mikola
-
Patent number: 6051678Abstract: Copolymers containing N-vinyllactam derivatives protected at 3-position are provided and represented by the following formula. The copolymers are used as a photoresist material suitable for deep uv process so that high sensitivity and resolution can be obtained. In addition, ultrafine circuits can be formed and an exceptional improvement in PED stability can be accomplished by use of the photoresist.Type: GrantFiled: March 13, 1997Date of Patent: April 18, 2000Assignee: Hyundai Electronics Industries Co., Ltd.Inventors: Jin Baek Kim, Min Ho Jung, Jong Ho Cheong
-
Patent number: 6048840Abstract: This invention relates to novel insulin-potentiating hypoglycaemic compounds.Type: GrantFiled: April 1, 1994Date of Patent: April 11, 2000Assignee: Monash UniversityInventors: Milton Thomas William Hearn, Frank Man-Woon Ng, Victoria Marie Jane Robson, Michael Francis O'Donoghue, Ian David Rae
-
Patent number: 6037477Abstract: An ether is oxidized with oxygen under an oxidation catalyst comprising an imide compound (such as N-hydroxyphthalimide) or the imide compound and a co-catalyst to produce the corresponding chain or cyclic ester or anhydride. The co-catalyst may be a transition metal compound. The above process provides a process for oxidizing an ether by oxygen efficiently to produce the corresponding oxide (such as an ester, an hydride) with high conversion and selectivity.Type: GrantFiled: May 8, 1998Date of Patent: March 14, 2000Assignees: Daicel Chemical Industries, Ltd., Yasutaka IshiiInventors: Yasutaka Ishii, Tatsuya Nakano
-
Patent number: 6025501Abstract: What is described herein are derivatized polymers of .alpha.-olefin-maleic anhydride alkyl half-ester or full acid, preferably the isobutylene compound, optionally with repeat units of maleamic acid and/or its corresponding maleimide therein. These polymers are useful as fixatives in personal care products, such as hair spray compositions, particularly as one-phase, low VOC formulations in pump and aerosol systems, and in anhydrous, alcoholic, aqueous-alcoholic and in high hydrocarbon tolerant solvent formulations. In use, these hair spray compositions dry down to form clear, continuous and defectless films.Type: GrantFiled: June 24, 1998Date of Patent: February 15, 2000Assignee: ISP Investments Inc.Inventors: Herbert W. Ulmer, Timothy Gillece, John A. Katirgis, Linda C. Foltis, April Blaine
-
Patent number: 6017943Abstract: The present invention provides a class of compounds having the formula:Y--R--CH.sub.2 --CH.sub.2 --[O--CH.sub.2 --CH.sub.2 ].sub.n --R'--Y'wherein n is an integer from about 5 to about 200; R is carbamate, urea, or amide; R' is carbamate, urea, amide, or oxygen; Y is 4-phenylmalemimido or 3-phenylmaleimido; and Y' is 4-phenylmalemimido, 3-phenylmaleimido, methyl or hydrogen. The present invention also provides various hemoglobin compositions modified with the class of compounds of the present invention, processes for preparing these compositions, as well as pharmaceutical compositions comprising these compositions.Type: GrantFiled: February 4, 1998Date of Patent: January 25, 2000Assignee: Albert Einstein College of Medicine of Yeshiva UniversityInventors: A. Seetharama Acharya, Belur N. Manjula, Paul K. Smith
-
Patent number: 6015904Abstract: This invention provides novel reagents for the preparation of radiopharmaceuticals useful as imaging agents for the diagnosis of cardiovascular disorders, infection, inflammation and cancer, diagnostic kits comprising said reagents and intermediate compounds useful for the preparation of said reagents. The reagents are comprised of stable hydrazone modified biologically active molecules that react with gamma emitting radioisotopes to form radiopharmaceuticals that selectively localize at sites of disease and thus allow an image to be obtained of the loci using gamma scintigraphy.Type: GrantFiled: October 23, 1997Date of Patent: January 18, 2000Inventors: Michael Sworin, Milind Rajopadhye, Thomas David Harris, David Scott Edwards, Edward Hollister Cheesman, Shuang Liu
-
Patent number: 6005069Abstract: Polysuccinimide of varying molecular weight has been prepared in a solvent system by heat polymerization of aspartic acid. The solvent system includes a sulfur oxygen acid and a sulfur oxygen acid salt. In a preferred embodiment, aspartic acid is polymerized in a liquid solvent reaction mixture at a temperature in the range of about 110.degree. C. to about 320.degree. C.Type: GrantFiled: December 18, 1996Date of Patent: December 21, 1999Assignee: Donlar CorporationInventors: Grigory Ya. Mazo, Jacob Mazo
-
Patent number: 5965746Abstract: Provided are methods for the synthesis of N-cyclic maleamic acids and N-cyclic maleimide derivatives, as well as N-cyclic maleamic acids and N-cyclic maleimides synthesized thereby. The method for synthesis of an N-cyclic maleamic acid involves reacting an amino group-containing N-cyclic compound with maleic anhydride in acetic acid to obtain an N-cyclic maleamic acid. An N-cyclic maleimide can be formed by adding hexamethyldisilazane to an N-cyclic maleamic acid prepared according to the above-described method, thereby cyclizing a maleamic acid site of the N-cyclic maleamic acid. The described methods allow for the products to be obtained at high yields.Type: GrantFiled: June 2, 1998Date of Patent: October 12, 1999Assignee: Aisin Seiki Kabushiki KaishaInventors: Satoshi Fujita, Paidi Yella Reddy, Takeshi Toru
-
Patent number: 5959122Abstract: A process for making derivatized polymers of maleic anhydride containing maleamic acid and its corresponding cyclic imide repeat units, in alcohol solution, at a temperature of about 60-160.degree. C., during a reaction period of about 1-25 hours. The product is a polymer having a predetermined ratio of the above repeat units.Type: GrantFiled: June 24, 1998Date of Patent: September 28, 1999Assignee: ISP Investments Inc.Inventors: Herbert W. Ulmer, John A. Katirgis, Timothy Gillece
-
Patent number: 5958821Abstract: A substrate (e.g., a cycloalkane, a polycyclic hydrocarbon, an aromatic compound having a methyl group or methylene group adjacent to an aromatic ring) is oxidized with oxygen in the presence of an oxidation catalyst comprising an imide compound of the following formula (1) (e.g., N-hydroxyphthalimide), and a co-catalyst (except phosphovanadomolybdic acid) containing an element selected from the group consisting of Group 2A elements of the Periodic Table of Elements, transition metals (Group 3A to 7A elements, Group 8 elements, Group 1B elements and Group 2B elements of the Periodic Table of Elements) and Group 3B elements of the Periodic Table of Elements, for the formation of an oxide (e.g., a ketone, an alcohol, a carboxylic acid): ##STR1## wherein R.sup.1 and R.sup.2 represent a substituent such as a hydrogen atom or a halogen atom, or R.sup.1 and R.sup.2 may together form a double bond or an aromatic or nonaromatic 5- to 12-membered ring, X is O or OH, and n is 1 to 3.Type: GrantFiled: September 24, 1997Date of Patent: September 28, 1999Assignee: Daicel Chemical Industries, Ltd.Inventors: Yasutaka Ishii, Tatsuya Nakano
-
Patent number: 5958957Abstract: The present invention relates to novel organic compounds, to methods for their preparation, to compositions containing them, to their use for treatment of human and animal disorders, to their use for purification of proteins or glycoproteins, and to their use in diagnosis. The invention relates to modulation of the activity of molecules with phospho-tyrosine recognition units, including protein tyrosine phosphatases (PTPases) and proteins with Src-homology-2 domains, in in vitro systems, microorganisms, eukaryotic cells, whole animals and human beings. The novel organic compounds are compounds of formula (I)(L).sub.n --Ar.sub.1 --R.sub.1 --A (I)wherein(L).sub.n, n, Ar.sub.1, R.sub.1 and A are as defined in the application.Type: GrantFiled: April 16, 1997Date of Patent: September 28, 1999Assignee: Novo Nordisk A/SInventors: Henrik Sune Andersen, Niels Peter Hundahl Moller, Peter Madsen
-
Patent number: 5916825Abstract: A compound of the formula: ##STR1## wherein R.sub.1 is a polyisobutanyl group derived from a highly reactive polyisobutene having an average molecular weight in the range of from about 500 to 5,000;R.sub.2 is an alkylene group having from about 2 to 6 carbon atoms; andx is an integer from about 1 to 4.The polyisobutanyl succinimides of the present invention are useful as fuel additives for the prevention and control of engine deposits.Type: GrantFiled: August 28, 1998Date of Patent: June 29, 1999Assignee: Chevron Chemical Company LLCInventor: Richard E. Cherpeck
-
Patent number: 5886194Abstract: This invention describes hydroxyamino-derivatized polymers of .alpha.-olefin-maleic anhydride in the form of their maleimide, maleamic acid and .alpha.-olefin-maleic anhydride half-acid/half ester or full acid repeat units process for making same. The polymers are made by reacting an .alpha.-olefin-maleic anhydride, half-acid/half-ester or full acid with a hydroxy containing .alpha.-unsubstituted primary amine in aqueous or aqueous alcoholic solution at a temperature of about 60.degree.-160.degree. C. during a reaction period of about 1-25 hours.Type: GrantFiled: June 24, 1998Date of Patent: March 23, 1999Assignee: ISP Investments Inc.Inventors: Herbert W. Ulmer, Timothy Gillece, John A. Katirgis
-
Cross-linked succinimides from an acid derivative, a polyamine, and a polycarboxylic acid derivative
Patent number: 5880070Abstract: A polyalkylene succinimide composition prepared by reacting a mixture of an acid derivative, a polycarboxylic acid derivative; and a polyamine under reactive conditions. The acid derivative can be an alkenyl or alkylsuccinic acid derivative, a copolymer of a first unsaturated acidic reagent and a 1,1-disubstituted olefin, or mixtures of the alkenyl or alkylsuccinic acid derivative and the copolymer. The total reaction mixture contains from 4 to 40 wt. % of the polycarboxylic acid derivative, and contains from 0.1 to 1.5 equivalents of polyamine per equivalent of acidic groups of the acid derivative plus the acidic groups of the polycarboxylic acid derivative.Type: GrantFiled: August 20, 1996Date of Patent: March 9, 1999Assignee: Chevron Chemical CompanyInventors: James J. Harrison, William R. Ruhe, Jr. -
Patent number: 5877204Abstract: The present invention relates to compounds which are useful as sunscreens. The compounds persist on the skin for much longer than conventional sunscreens because they comprise a Michael acceptor linked directly or indirectly to a chromophore. The Michael acceptor is capable of undergoing a conjugate addition reaction with thiol groups present in cysteine residues of keratin and thus the compound is chemically bound to the skin and will not be removed by immersion in water.Type: GrantFiled: November 5, 1996Date of Patent: March 2, 1999Assignee: Vanguard Medica LimitedInventors: Bruce Everett Davison, Bryan Colin Nicholas Morgan Jones, Charon Robin Ganellin, Paul Beaumont Bishop, David Jack
-
Patent number: 5874459Abstract: Disclosed is a method of inhibiting anandamide amidase in an individual or animal and novel inhibitors of anandamide amidase. The disclosed method and novel compounds can be used to reduce pain in an individual or animal suffering from pain, reducing nausea in an individual undergoing chemotherapy, for example cancer chemotherapy, suppressing appetite in an individual, reducing intraocular pressure in the eye of an individual or animal suffering from glaucoma and suppressing the immune system in an individual with an organ transplant.Type: GrantFiled: November 12, 1997Date of Patent: February 23, 1999Assignee: University of ConnecticutInventors: Alexandros Makriyannis, Sonyan Lin, William Adam Hill
-
Patent number: 5872261Abstract: A process is described for rapid preparation of pure sulfo-N-hydroxysuccinimides. The process may comprise the steps of:a) esterifying a sulfo-succinic acid to form a diester first product, andb) reacting said diester first product with hydroxylamine to form a sulfo-N-hydroxy succinimide.Type: GrantFiled: September 18, 1997Date of Patent: February 16, 1999Assignee: Pierce Chemical CompanyInventors: Martin Lee Bremmer, Marty Carey Wilkes
-
Patent number: 5869693Abstract: The invention disclosed relates to novel functionalized benzocyclobutenones of structural formula I ##STR1## wherein R is NH.sub.2, reactive NH.sub.2 derivatives including acids, acid chlorides, amides and diazonium salts, OH, CN, NO.sub.2, H, I, F Br, Cl, mercapto and deuterium. Also disclosed are polymer compositions comprising thermal reaction products of the benzocyclobutenones of formula I and either a polyol or a polyamine.Type: GrantFiled: April 24, 1997Date of Patent: February 9, 1999Assignee: Carleton UniversityInventor: Zhi Yuan Wang
-
Patent number: 5869695Abstract: A process for making derivatized polymers of maleic anhydride containing maleamic acid and its corresponding cyclic imide repeat units, in alcohol solution, at a temperature of about 60.degree.-160.degree. C., during a reaction period of about 1-25 hours. The product is a polymer having a predetermined ratio of the above repeat units.Type: GrantFiled: April 25, 1997Date of Patent: February 9, 1999Assignee: ISP Investments Inc.Inventors: Herbert W. Ulmer, John A. Katirgis
-
Patent number: 5858653Abstract: Method and reagent composition for covalent attachment of target molecules, such as nucleic acids, onto the surface of a substrate. The reagent composition includes groups capable of attracting the target molecule as well as groups capable of covalently binding to the target molecule, once attracted. Optionally, the composition can contain photoreactive groups for use in attaching the reagent composition to the surface.Type: GrantFiled: September 30, 1997Date of Patent: January 12, 1999Assignee: SurModics, Inc.Inventors: Lise W. Duran, Melvin J. Swanson, Richard A. Amos, Sheau-Ping J. Hu, Patrick E. Guire
-
Patent number: 5847213Abstract: There is provided a process for producing a tertiary amine compound in one step without using any subsidiary raw material or any solvent, by subjecting a secondary amine compound and an alcohol to an intermolecular dehydration reaction in a gas phase. The process uses, as a catalyst, an oxide containing an alkali metal element and/or an alkaline earth metal element and silicon.Type: GrantFiled: March 3, 1997Date of Patent: December 8, 1998Assignee: Nippon Shokubai Co., Ltd.Inventors: Akira Kurusu, Yuuji Shimasaki
-
Patent number: 5789491Abstract: Fluorinated imides useful for imparting repellency of low surface tension fluids to thermoplastic polymers of formulae ##STR1## wherein R.sub.1 is F(CF.sub.2).sub.x --(CH.sub.2).sub.m, or F(CF.sub.2).sub.x SO.sub.2 N(R.sub.5)(CH.sub.2)p wherein x is from about 4 to about 20, m is from about 2 to about 6, p is from 1 to about 12, and R.sub.5 is an alkyl radical of from 1 to about 4 carbons;R.sub.2 is a linear, branched or cyclic alkylene or poly(oxyalkylene) hydrocarbon group having from about 2 to about 15 carbons;R.sub.3 is selected from the group consisting of F(CF.sub.2).sub.x --(CH.sub.2).sub.m, F(CF.sub.2).sub.x --(CH.sub.2).sub.m --OC(O)--(CH.sub.2).sub.n, and F(CF.sub.2).sub.x SO.sub.2 N(R.sub.5)(CH.sub.2).sub.p OC(O)(CH.sub.2).sub.nwherein x is from about 4 to about 20, m is from about 2 to about 6, n is about 2 to about 12, p is from 1 to about 12, and R.sub.5 is an alkyl radical of from 1 to about 4 carbons;R.sub.4 is an alkyl or alkenyl group of from about 4 to about 20 carbons, andR.sub.Type: GrantFiled: June 19, 1997Date of Patent: August 4, 1998Assignee: E. I. du Pont de Nemours and CompanyInventors: Theodor Arthur Liss, Kimberly Gheysen Raiford, Edward James Greenwood
-
Patent number: 5780645Abstract: A process for the alkylation of imides wherein the imides are reacted with a dialkyl carbonate, in the liquid state, at a temperature of between 100.degree. C. and 250.degree. C. and at a pressure of between 0 and 60 atmospheres in the presence of a basic catalyst. The dialkyl carbonate reagents are not very toxic and are thermally stable and their use as alkylation agents makes it possible to produce waste products with a negligible saline content.Type: GrantFiled: December 31, 1996Date of Patent: July 14, 1998Assignee: Enichem S.p.A.Inventors: Marcello Notari, Franco Mizia, Franco Rivetti
-
Patent number: 5773630Abstract: N-Substituted cyclic imides are obtained by reacting a cyclic acid anhydride with an amine in the presence of a solvent and an acid catalyst at 80.degree. to 200.degree. C. and with removal of the water formed, it being particularly advantageous to carry out this reaction in the presence of a stabilizer and an inert, dipolar aprotic cosolvent, optionally to add an inert organic solvent of low or zero polarity to the reaction mixture present after the reaction, to add a non-aqueous base in an amount of 0.5 to 50% by weight, based on the cyclic anhydride of the formula (II) used, and to separate off the precipitate formed to give a filtrate containing the N-substituted cyclic imide.Type: GrantFiled: February 6, 1996Date of Patent: June 30, 1998Assignee: Bayer AktiengesellschaftInventors: Torsten Groth, Karl-Erwin Piejko, Winfried Joentgen, Josef Kasbauer, Bernd Alig, Werner Struver
-
Patent number: 5756762Abstract: The present invention relates to a novel enantiospecific processes for preparing (S)-4-amino-hepta-5,6-dienoic acid and pharmaceutically acceptable salts thereof, which is useful as an irreversible inhibitor of GABA-T, to novel intermediates thereof, and a process for preparing an intermediate thereof.Type: GrantFiled: January 9, 1997Date of Patent: May 26, 1998Assignee: Merrell Pharmaceuticals Inc.Inventor: H. Michael Kolb
-
Patent number: 5750680Abstract: N-vinyllactam derivatives protected at the 3-position are provided and represented by the following formula (I). These are polymerized into homo- and copolymers for use in microlithography of semiconductor manufacture. The polymers are used as a photoresist material suitable for a deep UV process so that pictures of high sensitivity and high resolution can be obtained. In addition, ultrafine circuits can be formed and an exceptional improvement in pattern formation can be accomplished through the use of the photoresist of the invention.Type: GrantFiled: September 12, 1996Date of Patent: May 12, 1998Assignees: Hyundai Electronics Industries Co., Ltd., Korea Advanced Institute of Science & TechnologyInventors: Jin Baek Kim, Min Ho Jung, Kyeong Ho Chang
-
Patent number: 5750725Abstract: The present invention provides a class of compounds having the formula:Y--R--CH.sub.2 --CH.sub.2 --?O--CH.sub.2 --CH.sub.2 !.sub.n --R'--Y'wherein n is an integer from about 5 to about 200; R is carbamate, urea, or amide; R' is carbamate, urea, amide, or oxygen; Y is 4-phenylmalemimido or 3-phenylmaleimido; and Y' is 4-phenylmalemimido, 3-phenylmaleimido, methyl or hydrogen. The present invention also provides various hemoglobin compositions modified with the class of compounds of the present invention, processes for preparing these compositions, as well as pharmaceutical compositions comprising these compositions.Type: GrantFiled: September 26, 1996Date of Patent: May 12, 1998Assignee: Albert Einstein College of Medicine of Yeshiva University, a Division of YeshivaInventors: A. Seetharama Acharya, Belur N. Manjula, Paul K. Smith
-
Patent number: 5734063Abstract: The present invention provides a method for preparation of a compound of the formula (I) useful as a fog restrainer for a silver halide light-sensitive material, especially for a heat-developing light-sensitive material and a synthetic intermediate for the fog restrainer. The method makes it possible to obtain the fog restrainer in good yield and in short steps. ##STR1## wherein, R.sup.1 is alkyl, cycloalkyl, or aryl, R.sup.2 and R.sup.3 are hydrogen atom or alkyl, R.sup.4 is hydrogen atom or acyl, and R.sup.1 and R.sup.4 may be bonded together to form 5- or 6-membered ring.Type: GrantFiled: October 24, 1996Date of Patent: March 31, 1998Assignee: Fuji Photo Film Co.,Ltd.Inventors: Katsuyoshi Yamakawa, Tadahisa Sato
-
Patent number: 5710140Abstract: The invention encompasses the novel compound of Formula I useful in the treatment of cyclooxygenase-2 mediated diseases. ##STR1## The invention also encompasses certain pharmaceutical compositions for treatment of cyclooxygenase-2 mediated diseases comprising compounds of Formula I.Type: GrantFiled: August 16, 1996Date of Patent: January 20, 1998Assignee: Merck Frosst Canada, Inc.Inventors: Yves Ducharme, Jacques Yves Gauthier, Petpiboon Prasit, Yves Leblanc, Zhaoyin Wang, Serge Leger, Michel Therien
-
Patent number: 5703104Abstract: Compounds, topical compositions and methods useful for preventing the penetration of toxic chemicals through the skin of a mammal are disclosed.The compounds of the invention provide an enhanced barrier for the skin of a mammal to further inhibit or decrease the passage of bioactive agents through the skin of a mammal either from the outside environment into the systems of said mammal or from the mammal into the outside environment.Type: GrantFiled: July 3, 1996Date of Patent: December 30, 1997Assignee: Durham Pharmaceuticals LLCInventors: James V. Peck, Gevork Minaskanian, Mark C. Sleevi
-
Patent number: RE36607Abstract: This invention relates to benzolididene compounds of the formula ##STR1## in which R.sup.2 represents the radical ##STR2## in which R.sup.4 and R.sup.5 are identical or different and denote halogen, cyano, ethinyl, trifluoromethoxy, methylthio, nitro, trifluoromethyl or straight-chain or branched alkyl, alkenyl, alkinyl or alkoxy having up to 4 carbon atoms, and one of the substituents optionally represents hydrogen,or a salt thereof.[...]..Iadd., andA represents hydrogen or straight-chain or branched alkyl having up to 8 carbon atoms, or represents phenyl or benzyl which are optionally substituted one to three times by identical or different substituents from the series consisting of hydroxyl, nitro, halogen, cyano, carboxyl, trifluoromethyl, trifluoromethoxy, straight-chain or branched alkoxy having up to 6 carbon atoms or by a group of the formula --NR.sup.6 R.sup.7 or --SO.sub.2 R.sup.8, in whichR.sup.6 and R.sup.Type: GrantFiled: March 25, 1999Date of Patent: March 7, 2000Assignee: Bayer AktiengesellschaftInventors: Joachim Mittendorf, Peter Fey, Bodo Junge, Johannes Kaulen, Kai van Laak, Heinrich Meier, Rudolf Schohe-Loop