The Spiro Includes A Three- Or Four-membered Hetero Ring Patents (Class 549/332)
-
Patent number: 5869698Abstract: Dioxetanes which couple with organic and biological molecules of the formula: ##STR1## wherein X is a leaving group which is removed by an `activating agent to produce light, wherein A is a coupling substituent, Ar is a substituent selected from the group consisting of phenyl and naphthyl to provide a label are described. R.sub.1 is an optional linker substituent and can have between 1 and 30 carbon atoms with some of the carbon atoms being oxygen, sulfur, nitrogen or phosphorus. Ar as phenyl is preferred. The dioxetane coupled molecules are useful in assays of all types where luminescence can be used as an indicator.Type: GrantFiled: August 12, 1997Date of Patent: February 9, 1999Assignee: Board of Governors of Wayne State UniversityInventors: Arthur P. Schaap, Louis J. Romano, Jaidev S. Goudar
-
Patent number: 5856522Abstract: Kits comprising 1,2-dioxetanes which can be cause to chemiluminesce by contact with an enzyme, and the enzyme, are provided for use in optically detectable assays. The assay calls for binding the enzyme to the substance to be detected in a sample, removing any unbound enzyme, and then combining the treated sample with the dioxetane. If the substance to be detected is present, enzyme bound thereto will cleave the protecting group of the dioxetane, causing the dioxetane to decompose and chemiluminescence. The intensity of luminescence is indicative of the concentration of the substance in the sample. The substance to be detected may be an enzyme, in which case no binding group is necessary.Type: GrantFiled: June 25, 1997Date of Patent: January 5, 1999
-
Patent number: 5854235Abstract: The invention relates to a steroid derivative which steroidal skeleton is bound at carbon atom 17 to a spiromethylene ring of the formula: ##STR1## wherein R.sub.a and R.sub.b are independently selected from the group consisting of hydrogen, methyl, and halogen; m is 1 or 2; and the asterisk denotes carbon atom 2 of the spiromethylene ring which is carbon atom 17 (or carbon atom 17.alpha. of a homosteroid skeleton) of the steroid. The steroids have progestational or antiprogestational activity.Type: GrantFiled: November 3, 1997Date of Patent: December 29, 1998Assignee: Akzo Nobel N.V.Inventors: Johannes Antonius Maria Hamersma, Everardus Otto Maria Orlemans, Johannes Bernardus Maria Rewinkel
-
Patent number: 5851771Abstract: Spiroadamantyl dioxetanes bearing an alkoxy substituent, and an aromatic substituent of phenyl or naphthyl on the dioxetane ring can be activated to chemiluminesce if the aromatic substituent bears a moiety designated OX, wherein the X is cleaved by an enzyme with which the dioxetane is permitted to come in contact with. The T.sub.1/2 kinetics of the chemiluminescent reaction, as well as the signal intensity, or quantum yield of the chemiluminescent reaction, can be altered by selection of an electron-withdrawing or an electron-donating group Z, at positions on the aromatic substituent other than those adjacent the point of attachment to the dioxetane. Signal strength can further be enhanced by recognized chemiluminescent enhancers.Type: GrantFiled: January 19, 1996Date of Patent: December 22, 1998
-
Patent number: 5846753Abstract: A method of detecting the presence of a substance being monitored in a medium, selected from the group of substances including organophosphorus compounds and the metal ions Zn, Be and Bi, including the steps of: providing a 1,2-dioxetane phenyl phosphate compound; providing a phosphatase that catalytically degrades the 1,2-dioxetane phenyl phosphate compound to produce light, the catalytic activity of the phosphatase toward 1,2-dioxetane phenyl phosphate compound being altered by the substance being monitored; exposing the 1,2-dioxetane phenyl phosphate compound and the phosphatase together to a medium which may contain the substance being monitored; detecting light produced after the exposing step; and determining, from the detected light, the presence and concentration in the medium of the substance being monitored.Type: GrantFiled: May 30, 1995Date of Patent: December 8, 1998Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Joseph A. Akkara, David L. Kaplan, Madhu S. R. Ayyagari, Kenneth A. Marx, Sanjay Kamtekar, Rajiv Pande, Sukant K. Tripathy, Jayant Kumar
-
Patent number: 5847161Abstract: A new class of stable dioxetanes bears a polycyclic stabilizing group and aryloxy moiety, the oxygen atom of which is provided with a protective group which can be removed by an enzymatic or chemical trigger admixed with the dioxetane. The polycyclic stabilizing group is preferably spiroadamantane. The group further bears an alkoxy, aryloxy, aralkyloxy or cycloalkyloxy moiety which is partially or completely substituted with halogens, particularly fluorine and chlorine. Proper selection of electron active groups on the stabilizing moiety, the aryl group and the OR group yields enhanced enzyme kinetics, superior light intensity and excellent detection sensitivity in various assays.Type: GrantFiled: June 13, 1997Date of Patent: December 8, 1998
-
Patent number: 5843681Abstract: 1, 2-dioxetane compounds bearing a proteolytic enzyme specific amino acid or peptide are provided, which amino acid or peptide can be removed by action of the corresponding protease. When the amino acid or peptide is removed, the 1,2-dioxetane decomposes with chemiluminescence, the generation of light providing a rapid, ultra-sensitive and convenient means for detecting the presence of the protease in the sample being inspected. The amount of light generated, or degree of chemiluminescence, can be correlated with the amount of protease present. Immunoassays, as well as DNA hybridization and DNA probe assays are provided.Type: GrantFiled: October 11, 1996Date of Patent: December 1, 1998
-
Patent number: 5840919Abstract: Novel 1,2-dioxetanes with improved chemiluminescent properties, such as signal intensity, S/N ratio, T1/2, etc. are provided by spiroadamantyl 1,2-dioxetanes, wherein the remaining carbon atom of the ring bears an alkoxy, aryloxy, or arylalkoxy substituent, and either a phenyl or naphthyl ring, this aromatic ring bearing, at the meta position on the phenyl group, or a non-conjugated position on the naphthyl ring, a OX moiety wherein X is an enzyme-cleavable group, which when removed from the dioxetane, leaves the oxyanion which decomposies with chemiluminescence, the aryl ring further bearing an electron active substituent Z. The nature and placement of the Z substituent, at a position not adjacent the point of attachment to the dioxetane ring, strongly influences the properties of the dioxetane. Assays, as well as kits for the performance of those assays, include the dioxetane, an enzyme capable of cleaving the X group, and in certain cases, membranes and chemiluminscent enhancement agents.Type: GrantFiled: October 17, 1995Date of Patent: November 24, 1998
-
Patent number: 5831102Abstract: Enzymatically cleavable chemiluminescent 1,2-dioxetane compounds capable of producing light energy when decomposed, substantially stable at room temperature before a bond by which an enzymatically cleavable labile substituent thereof is intentionally cleaved, are disclosed. These compounds can be represented by the formula: ##STR1## wherein: X and X.sup.1 each represent, individually, hydrogen, a hydroxyl group, a halo substituent, an unsubstituted lower alkyl group, a hydroxy (lower) alkyl group, a halo (lower) alkyl group, a phenyl group, a halophenyl group, an alkoxyphenyl group, a hydroxyalkoxy group, a cyano group or an amide group, with at least one of X and X.sup.1 being other than hydrogen; andR.sub.1 and R.sub.2, individually or together, represent an organic substituent that does not interfere with the production of light when the dioxetane compound is enzymatically cleaved and that satisfies the valence of the dioxetane compound's 4-carbon atom, with the provisos that if R.sup.1 and R.sub.Type: GrantFiled: February 8, 1996Date of Patent: November 3, 1998
-
Patent number: 5789604Abstract: New antibacterial agents produced by fungal culture 07F275, of which the compound designated 07F275 alpha having the following structure: ##STR1## is representative. Methods for the fermentation, recovery and purification from crude solutions are also disclosed.Type: GrantFiled: May 12, 1993Date of Patent: August 4, 1998Assignee: American Cyanamid CompanyInventors: Cedric John Pearce, Robert West, Gerhard Schlingmann
-
Patent number: 5789405Abstract: An oxaspiro ?2,5!octane derivative of the formula: ##STR1## useful in inhibiting angiogenesis in solid tumors.Type: GrantFiled: June 5, 1991Date of Patent: August 4, 1998Assignee: Fujisawa Pharmaceutical Co., Ltd.Inventors: Teruo Oku, Chiyoshi Kasahara, Takehiko Ohkawa, Masashi Hashimoto
-
Patent number: 5785887Abstract: A peroxygen bleaching composition which comprises approximately by weight a mixture of about 1 to about 75% of an inorganic peroxygen bleaching compound; and about 1 to about 75% peroxygen ketalcycloalkanedione bleachant activator.Type: GrantFiled: February 20, 1996Date of Patent: July 28, 1998Assignee: Colgate-Palmolive CompanyInventors: Robert Steltenkamp, Robert Heffner
-
Patent number: 5777135Abstract: Stable, enzymatically triggered chemiluminescent 1,2-dioxetanes with improved water solubility are provided. Dioxetanes further instituted with two or more water-solubilizing groups disposed on the dioxetane structure provide superior performance by eliminating the problem of reagent carryover when used in assays performed on capsule chemistry analytical systems. Compositions comprising a dioxetane with two or more water-solubilizing groups, a non-polymeric cationic surfactant enhancer and optionally a fluorescer, for providing enhanced chemiluminescence are also provided.Type: GrantFiled: July 31, 1995Date of Patent: July 7, 1998Assignees: Lumigen, Inc., Board of Governors Wayne State Univ.Inventors: Hashem Akhavan-Tafti, Renuka De Silva, A. Paul Schaap
-
Patent number: 5777133Abstract: Compounds having the formula: ##STR1## wherein T is a polycycloalkylidene group (e.g., adamant-2-ylidene); R is a C.sub.1-20 alkyl, aralkyl or cycloalkyl group; and Y is a fluorescent chromophore (eg., m-phenylene), produced by reacting a compound having the formula: ##STR2## with an R-ylating agent (e.g., R.sub.2 SO.sub.4) in the presence of an alkali metal alkoxide in a polar aprotic solvent. Also, compounds having the formula: ##STR3## are produced by reacting a compound having the formula: ##STR4## wherein X is an electronegative leaving group (e.g., a halogen anion such as chloride ion) in the presence of a Lewis base (e.g., a trialkyl-amine) dissolved in an aprotic organic solvent (e.g., benzene or toluene). Also, compounds having the formula ##STR5## are produced by reacting a compound of the formula ##STR6## with a tetra-O-acylated-O-hexopyranoside halide, then hydrolyzing off the protective acyl groups.Type: GrantFiled: January 28, 1997Date of Patent: July 7, 1998
-
Patent number: 5773628Abstract: A chemiluminescent assay method and compositions are described which use a haloalkoxy group-substituted dioxetane which is deprotected by a hydrolytic enzyme to undergo a chemiluminescent reaction. Chemiluminescent 1,2-dioxetane compounds substituted on the dioxetane ring with a haloalkoxy group which can be triggered by a reagent to generate light are disclosed. Haloalkoxy group-substituted dioxetanes are useful for the detection of triggering agents including enzymes. The enzyme may be present alone or linked to a member of a specific binding pair in an immunoassay, DNA probe assay or other assay where the enzyme is bound to a reporter molecule.Type: GrantFiled: November 14, 1994Date of Patent: June 30, 1998Assignee: Tropix, Inc.Inventors: Hashem Akhavan-Tafti, Zahra Arghavani, Robert A. Eickholt, Khaledur S. Rashid
-
Patent number: 5770743Abstract: Dioxetanes which couple with organic and biological molecules of the formula: ##STR1## wherein X is a leaving group which is removed by an activating agent other than an enzyme which is removed by an activating agent to produce light, wherein A is a coupling substituent, Ar is a substituent selected from the group consisting of phenyl and naphthyl to provide a label are described. R.sub.1 is an optional linker substituent and can have between 1 and 30 carbon atoms with some of the carbon atoms being oxygen, sulfur, nitrogen or phosphorus. Ar as phenyl is preferred. The dioxetane coupled molecules are useful in assays of all types where luminescence can be used as an indicator.Type: GrantFiled: March 25, 1994Date of Patent: June 23, 1998Assignee: Board of Governors of Wayne State UniversityInventors: Arthur P. Schaap, Louis J. Romano, Jaidev S. Goudar
-
Patent number: 5767293Abstract: Oxaspiro?2,5! octanes of the formula ##STR1## inhibit angiogenesis and are particularly suitable for the treatment of solid tumors. In preferred embodiments, R.sup.1 is a carbamoyl derivative, R.sup.2 is an alkoxy substituent and R.sup.3 is ##STR2## Pharmaceutical salts of these compounds, such as methyl, amonium and organic amine salts also exhibit desirable properties.Type: GrantFiled: August 5, 1994Date of Patent: June 16, 1998Assignee: Fujisawa Pharmaceutical Co., Ltd.Inventors: Teruo Oku, Chiyoshi Kasahara, Takehiko Ohkawa, Masashi Hashimoto
-
Patent number: 5721370Abstract: Stable, enzymatically triggered chemiluminescent 1,2-dioxetanes with improved water solubility and storage stability are provided. Dioxetanes further substituted with two or more water-solubilizing groups disposed on the dioxetane structure and an additional fluorine atom or lower alkyl group provide superior performance by eliminating the problem of reagent carryover when used in assays performed on capsule chemistry analytical systems. These dioxetanes display substantially improved stability on storage. Compositions comprising these dioxetanes, a non-polymeric cationic surfactant enhancer and optionally a fluorescer, for providing enhanced chemiluminescence are also provided.Type: GrantFiled: November 8, 1996Date of Patent: February 24, 1998Assignee: Lumigen Inc.Inventors: Hashem Akhavan-Tafti, Zahra Arghavani, Renuka DeSilva, Kumar Thakur
-
Patent number: 5719291Abstract: Compounds of the formula ##STR1## which have antifungal activity.Type: GrantFiled: May 3, 1995Date of Patent: February 17, 1998Assignee: Hoffmann-La Roche Inc.Inventors: Yuhko Aoki, Hiromichi Kotaki, Kazunao Masubuchi, Toru Okuda, Nobuo Shimma, Takuo Tsukuda, Isao Umeda
-
Patent number: 5707559Abstract: Novel light producing 1,2-dioxetanes are described 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: March 9, 1987Date of Patent: January 13, 1998Assignee: Tropix, Inc.Inventors: Arthur Paul Schaap, Irena Y. Bronstein
-
Patent number: 5698586Abstract: O-substituted fumagillol derivatives and its salts have an angiogenesis inhibiting activity and are useful for prophylaxis and treatment of diseases induced by abnormally stimulated neovascularization.Type: GrantFiled: July 21, 1992Date of Patent: December 16, 1997Assignee: Takeda Chemical Industries, LtdInventors: Shoji Kishimoto, Takeshi Fujita, Tsuneo Kanamaru, Moses Judah Folkman, Donald Ingber
-
Patent number: 5698714Abstract: The invention recites a process for preparing 9,10-secocholesta-5,7,10(19)-trienes of formula (I) ##STR1## where R.sup.1 is hydrogen or a hydroxy-protecting group and R.sup.2 and R.sup.3 are independently hydrogen or OR.sup.1. The compounds are prepared from epoxides of the following formulas ##STR2## by reaction with a low-valent metal reagent formed by reducing a metal halide, M(z)X.sub.z, preferably WCl.sub.6.Type: GrantFiled: July 11, 1996Date of Patent: December 16, 1997Assignee: Cerbios Pharma S.A.Inventors: Christof Schickli, Mathias Jud, Fabrizio Marazza
-
Patent number: 5679803Abstract: A new class of stable dioxetanes bears a polycyclic stabilizing group and aryloxy moiety, the oxygen atom of which is provided with a protective group which can be removed by an enzymatic or chemical trigger admixed with the dioxetane. The polycyclic stabilizing group is preferably spiroadamantane. The group further bears an alkoxy, aryloxy, aralkyloxy or cycloalkyloxymoiety which is partially or completely substituted with halogens, particularly fluorine and chlorine. Proper selection of electron active groups on the stabilizing moiety, the aryl group and the OR group yields enhanced enzyme kinetics, superior light intensity and excellent detection sensitivity in various assays.Type: GrantFiled: October 25, 1995Date of Patent: October 21, 1997
-
Patent number: 5679802Abstract: A compound of the formula ##STR1## where n, Q, and Z are as defined useful in chemiluminescent immunoassays.Type: GrantFiled: May 4, 1995Date of Patent: October 21, 1997
-
Patent number: 5672620Abstract: A compound having the structure: ##STR1## wherein (a) n is from 1 to about 3;(b) X is selected from the group consisting of O, S, SO, or SO.sub.2 ;(c) Y is independently hydrogen or straight, branched or cyclic alkyl having from 1 to about 4 carbon atoms, or the Y's are bonded together to form an alkanyl ring having from 3 to about 7 atoms;(d) Z is hydrogen or straight, branched or cyclic alkyl having from 3 to about 10 atoms other than hydrogen;(e) W is hydrogen or straight, branched or cyclic alkyl, aryl, hydroxy or alkoxy; and(f) R.sub.1 and R.sub.2 are independently hydrogen or straight, branched or cyclic alkyl having from one to 10 carbon atoms, aryl, heterocyclyl, heteroaryl, hydroxy, or alkoxy; or R.sub.1 and R.sub.2 are bonded together to form a ring having from from 3 to about 7 atoms wherein one to three atoms may be heteroatoms.pharmaceutical compositions comprising such compounds, and methods of treating inflammation or pain using such compounds.Type: GrantFiled: February 1, 1996Date of Patent: September 30, 1997Assignee: The Procter & Gamble CompanyInventors: Michael Wiard Scherz, Laurence Ichih Wu
-
Patent number: 5670663Abstract: The present invention provides new sources of taxanes and other metabolites from members of the order Coniferales that are not in the genus Taxus.Type: GrantFiled: February 14, 1996Date of Patent: September 23, 1997Assignee: Regents of the University of CaliforniaInventors: Don J. Durzan, Frank Ventimiglia
-
Patent number: 5663373Abstract: Compounds represented by the general formula (I), as well as intermediates for the synthesis of thereof: ##STR1## where R.sup.1 is a hydrogen atom or an acyl group; R.sup.2 is a lower alkyl group; R.sup.3 is a hydrogen atom or a lower alkyl group; R.sup.4, R.sup.5 and R.sup.6, which may be the same or different, are a hydrogen atom or an optionally substituted alkyl, alkenyl, alkynyl or aryl group; R.sup.2 and R.sup.4, when taken together, may form a 5-membered ring; R.sup.5 and R.sup.6, when taken together, may form a cycloalkyl group or a heterocyclic group in which at least one methylene on the ring of a cycloalkyl group is substituted by an oxygen atom, a sulfur atom or an alkyl-substituted nitrogen atom, provided that R.sup.6 is not present if the ring formed by R.sup.2 and R.sup.4 taken together is a benzofuran ring.Type: GrantFiled: August 21, 1996Date of Patent: September 2, 1997Assignee: Chugai Seiyaku Kabushiki KaishaInventors: Kunio Tamura, Yoshiaki Kato, Mitsutaka Yoshida, Osamu Cynshi, Yasuhiro Ohba
-
Patent number: 5652345Abstract: 4-(3-beta-D-galactopyranosylphenyl)-4-methoxyspiro[1,2-dioxetane-3,2'-adama ntane] which is useful in various chemiluminescent assays.Type: GrantFiled: January 25, 1994Date of Patent: July 29, 1997Assignee: Tropix, Inc.Inventors: Arthur Paul Schaap, Hashem Akhavan-Tafti
-
Patent number: 5648382Abstract: Compounds of formula (I): ##STR1## wherein: R is selected from the radicals: ##STR2## Y is selected from ##STR3## R.sub.1 represents the radical ##STR4## and A, B, C, D, R.sub.2, R.sub.3 and R.sub.4 are as defined in the description, and also the possible geometric isomers and/or diastereoisomers and/or enantiomers thereof in pure form or in the form of a mixture. The compounds of the present invention have a therapeutic use as a result of their angiogenesis-inhibiting activity.Type: GrantFiled: April 29, 1996Date of Patent: July 15, 1997Assignee: Adir et CompagnieInventors: David Billington, Isabelle Picard, Ghanem Atassi, Alain Pierre, Michael Burbridge, Nicolas Guilbaud
-
Patent number: 5639918Abstract: (Benzylidene)-azolylmethylcycloalkane or -alkene of formula ##STR1## in which: A and A.sub.1 are hydrocarbon chains of 1 to 3 carbon atoms,R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are hydrocarbon radicals,X is halogen,Y is H or halogen,n=1, 2 or 3,W is --CH.dbd. or --N.dbd..Use as a fungicide.Type: GrantFiled: September 26, 1994Date of Patent: June 17, 1997Assignee: Rhone-Poulenc AgrochimieInventors: Jean Hutt, Jacques Mugnier, Alfred Greiner, Regis Pepin
-
Patent number: 5631353Abstract: Alkene adamantane compounds useful as intermediates for producing the corresponding 1,2-dioxetanes which are useful in chemiluminescent assays.Type: GrantFiled: July 27, 1995Date of Patent: May 20, 1997Assignee: Board of Governors of Wayne State UniversityInventors: Arthur P. Schaap, Hashem Akhavan-Tafti
-
Patent number: 5625077Abstract: A compound having the formula ##STR1##Type: GrantFiled: January 18, 1991Date of Patent: April 29, 1997Assignee: Tropix, Inc.Inventor: Irena Y. Bronstein
-
Patent number: 5616729Abstract: Triggerable dioxetanes with a fluorescent substituent bonded or tethered in the dioxetane so as to produce fluorescence from the group are described. The compounds are of the formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are carbon containing groups and wherein one of R.sub.1, R.sub.2 and R.sub.3 is a tethered fluorescent substitutent. The compounds are useful in immunoassays and in probes using enzymes or other chemicals for triggering the dioxetanes to produce light from the fluorescent molecule in the group as a signal.Type: GrantFiled: December 27, 1988Date of Patent: April 1, 1997Assignee: Board of Governors of Wayne State UniversityInventors: Arthur P. Schaap, Hashem Akhavan-Tafti
-
Patent number: 5602173Abstract: Novel cyclohexane-ylidene derivatives of formula (I) are described. These compounds inhibit the production of Tumor Necrosis Factor and are useful in the treatment of disease states mediated or exacerbated by TNF production. These compounds are also useful in the mediation or inhibition of enzymatic or catalytic activity of phosphodiesterase IV and are therefore useful in the treatment of disease states in need of mediation or inhibition thereof.Type: GrantFiled: September 29, 1994Date of Patent: February 11, 1997Assignee: SmithKline Beecham CorporationInventor: Siegfried B. Christensen, IV
-
Patent number: 5591591Abstract: 1,2-dioxetane compounds bearing a proteolytic enzyme specific amino acid or peptide are provided, which amino acid or peptide can be removed by action of the corresponding protease. When the amino acid or peptide is removed, the 1,2-dioxetane decomposes with chemiluminescence, the generation of light providing a rapid, ultra-sensitive and convenient means for detecting the presence of the protease in the sample being inspected. The amount of light generated, or degree of chemiluminescence, can be correlated with the amount of protease present. Immunoassays, as well as DNA hybridization and DNA probe assays are provided.Type: GrantFiled: February 9, 1995Date of Patent: January 7, 1997
-
Patent number: 5582980Abstract: Spiroadamantyl dioxetanes bearing an alkoxy substituent, and a phenyl substituted on the dioxetane ring can be activated to chemiluminesce if the aromatic substituent bears a meta-substituted moiety designated OX, wherein the X is cleaved by an enzyme with which the dioxetane is permitted to come in contact with. The T.sub.1/2 kinetics of the chemiluminescent reaction, as well as the signal intensity and/or quantum yield of the chemiluminescent reaction, can be altered by addition of a chlorine substituent at position 4 on the phenyl ring. Signal strength can further be enhanced by recognized chemiluminescent enhancers.Type: GrantFiled: April 25, 1994Date of Patent: December 10, 1996
-
Patent number: 5547836Abstract: Chemiluminescent bioassays for the presence or concentration of an analyte in a sample use 1,2-dioxetanes as substrates for the enzyme of an enzyme complex that bind to the analyte. The chemiluminescence obtained from the decomposition of the dioxetane triggered by the enzyme through the formation of the corresponding 1,2-dioxetane oxyanion of the enzyme complex is enhanced by the addition of TBQ as an enhancement agent. Other polymeric quaternary onium salts can be used as enhancement agents in conjunction with enhancement additives which improve the ability of the enhancement agent to form hydrophobic regions in the aqueous sample, in which regions the 1,2-dioxetane oxyanion and its chemiluminescent decomposition products can be sequestered. A kit for performing such assays is also provided.Type: GrantFiled: March 15, 1993Date of Patent: August 20, 1996
-
Patent number: 5538847Abstract: Spiroadamantyl dioxetanes bearing an alkoxy substituent, and an aromatic substituent of phenyl or naphthyl on the dioxetane ring can be activated to chemiluminesce if the aromatic substituent bears a moiety designated OX, wherein the X is cleaved by an enzyme with which the dioxetane is permitted to come in contact with. The T.sub. 1/2 kinetics of the chemiluminescent reaction, as well as the signal intensity, or quantum yield of the chemiluminescent reaction, can be altered by selection of an electron-withdrawing or an electron-donating group Z, at positions on the aromatic substituent other than those adjacent the point of attachment to the dioxetane. Signal strength can further be enhanced by recognized chemiluminescent enhancers.Type: GrantFiled: May 7, 1993Date of Patent: July 23, 1996
-
Patent number: 5478954Abstract: Process for preparing highly pure enantiomers of oxirane alcohols, which comprises recrystallizing a mixture of the isomeric oxirane alcohols, in which the desired enantiomer is present in an excess of at least 60% ee, in a solvent or solvent mixture at a temperature just below the melting point of the oxirane alcohol.Oxirane alcohols prepared according to the invention are distinguished by high enantiomer purity. Ferroelectric liquid crystals, which contain highly pure enantiomers of oxirane alcohols according to the invention and/or derivatives derived therefrom, have particularly short switching times.Type: GrantFiled: July 28, 1993Date of Patent: December 26, 1995Assignee: Hoechst AktiengesellschaftInventor: Javier Manero
-
Patent number: 5440050Abstract: A process for the production of ambergris-type labdane spiroketals of general formulae I and II ##STR1## where R represents oxygen or sulphur, useful in the perfumery industry, the said process being characterized by the intramolecular cyclisation of the epoxyketone or its thio analog of general formula III ##STR2## where R.sub.1 represents COCH.sub.3 and R.sub.2 oxygen or sulphur.Type: GrantFiled: October 18, 1994Date of Patent: August 8, 1995Assignee: Givaudan-Roure CorporationInventors: Maria do Ceu Goncalves da Costa, Maria J. V. de Oliveira Baptista Marcelo Curto, Maria R. de Loureiro da Silva Tavares da Rosa, William B. Motherwell
-
Patent number: 5342966Abstract: Methods are disclosed for purifying chemiluminescent water-soluble 1,2-dioxetane derivatives suitable for use as reporter molecules in a variety of biological analytical systems, including enzyme-linked immunoassays, nucleic acid probe techniques, and structural determinations. The methods are based upon high pressure, medium pressure or low pressure liquid chromatography using as the stationary phase alkaline pH-stable compositions with the chromatographic characteristics of reversed-phase adsorbents, at alkaline pH values, and in the absence of acid-forming compounds or compounds with an unshared pair of electrons. Desalting of substantially pure water soluble 1,2-dioxetane derivatives may be accomplished by the same chromatographic systems or by molecular sieve chromatography systems, but in the absence of salt buffers. Under some circumstances, purification and desalting may be combined in a single chromatographic step.Type: GrantFiled: May 1, 1990Date of Patent: August 30, 1994
-
Patent number: 5306809Abstract: This invention relates to the field of immune therapy of cancer, more specifically to immunoconjugates of a cytotoxic moiety with a targeting moiety, more specifically to immunoconjugates of antibodies or fragments or functional derivatives of antibodies coupled to a cytotoxic substance such as drugs, toxins or radioisotopes. It especially relates to the release of substances bound to a targeting moiety through the use of acid-cleavable linker molecules.Type: GrantFiled: December 31, 1991Date of Patent: April 26, 1994Assignee: Akzo N.V.Inventors: Petrus J. Boon, Franciscus M. Kaspersen, Ebo S. Bos
-
Patent number: 5288722Abstract: The present invention relates to a compound of the formula: ##STR1## wherein R.sup.1 is 2-methyl-1-propenyl group or isobutyl group; R.sup.2 and R.sup.3 are each hydrogen atom, an optionally substituted hydrocarbon residue or an optionally substituted acyl group or R.sup.2 and R.sup.3 may form a ring together with the adjacent nitrogen atom; and the bonding mark .about. represents an .alpha.-linkage or .beta.-linkage, or a salt thereof. The compound (I) of the present invention has, among others, angiogenesis inhibiting activity, cell-growth inhibiting activity and immune reaction inhibiting activity, thus being useful as medicines, etc.Type: GrantFiled: September 19, 1991Date of Patent: February 22, 1994Assignee: Takeda Chemical Industries, Ltd.Inventors: Shoji Kishimoto, Shogo Marui, Takeshi Fujita
-
Patent number: 5250709Abstract: The present invention concerns novel dioxolane containing fluoroepoxides that are useful as curing materials, adhesives lubricants and coatings.Type: GrantFiled: November 10, 1992Date of Patent: October 5, 1993Assignee: E. I. Du Pont de Nemours and CompanyInventors: Ming-Hong Hung, Shlomo Rozen
-
Patent number: 5248618Abstract: Novel assay methods employing compounds which are chemically or enzymatically cleavable and which give rise to an intermediate which further decomposes by an intramolecular anchimeric displacement reaction which releases a signal producing species are disclosed. Also disclosed are probe hybridization assays employing the compounds of the invention employing thermostable enzymes which are not denatured by the hybridization conditions. Such signal producing species may include chemiluminescent dioxetanes and other colored products.Type: GrantFiled: June 5, 1991Date of Patent: September 28, 1993Assignee: Life Technologies, Inc.Inventor: Alberto Haces
-
Patent number: 5239089Abstract: Disclosed herein are an azole derivative represented by the formula (I): ##STR1## wherein R.sup.1 and R.sup.2 respectively represent a (C.sub.1 -C.sub.5) alkyl group or a hydrogen atom; X represents a halogen atom, a (C.sub.1 -C.sub.5) alkyl group or a phenyl group; n represents an integer of from 0 to 2 and A represents a nitrogen atom or a CH, provided that R.sup.1 is not a hydrogen atom when R.sup.2 is a hydrogen atom, a process for producing the azole derivative represented by the formula(I),and an agricultural and horticultural composition containing the azole derivative represented by the formula(I).Type: GrantFiled: July 8, 1992Date of Patent: August 24, 1993Assignee: Kureha Kagaku Kogyo Kabushiki KaishaInventors: Satoru Kumazawa, Susumu Shimizu, Hiroyuki Enari, Atsushi Ito, Susumu Ikeda, Nobuo Sato, Toshihide Saishoji
-
Patent number: 5225584Abstract: A novel synthesis of compounds having the formula: ##STR1## wherein T is a stabilizing spiro-linked polycycloalkylidene group, R.sup.3 is a C.sub.1 -C.sub.20 alkyl, aralkyl or heteroatom containing group, Y is an aromatic fluorescent chromophore, and Z is a cleavable group which, when cleaved, induces decomposition of the dioxetane ring and emission of optically detectable light, is disclosed. A tertiary phosphorous acid alkyl ester of the formula:(R.sup.1 O).sub.3 Pwherein R.sup.1 is a lower alkyl group, is reacted with an aryl dialkyl acetal produced by reacting a corresponding aryl aldehyde with an alcohol of the formula:R.sup.3 OHwherein R.sup.3 is as defined above, to produce a 1-alkoxy-1-arylmethane phosphonate ester of the formula: ##STR2## reacting the phosphonate with base to produce a phosphonate-stabilized carbanion, reacting the carbanion with a ketone of the formula:T.dbd.Type: GrantFiled: April 3, 1991Date of Patent: July 6, 1993Assignee: Tropix, Inc.Inventors: Edwards Brooks, Juo Rhou-Rong
-
Patent number: 5220005Abstract: Dioxetane compounds reactable with an enzyme to release optically detectable eneregy are disclosed. These compounds have the formula: ##STR1## wherein T is a carboxylic acid or methoxy substituted adamantyl group bound to the ring through a spiro bond, Y is phenoxy or napthyloxy and X is methoxy, ethoxy or propoxy. Z is an enzyme cleavable group such that when cleaved by an enzyme, an electron rich moiety is left bound to the dioxetane ring.Type: GrantFiled: August 30, 1990Date of Patent: June 15, 1993Assignee: Tropix, Inc.Inventor: Irena Y. Bronstein
-
Patent number: 5204345Abstract: The present invention relates to a compound of the formula: ##STR1## wherein R.sup.1 is 2-methyl-1-propenyl group or isobutyl group; R.sup.2 is hydrogen atom, an optionally substituted aliphatic hydrocarbon residue or an optionally substituted acyl group, or a salt thereof.The compound (I) of the invention has, among others, angiogenesis inhibiting activity, cell-proliferation inhibiting activity and immune reaction inhibiting activity, thus being useful as medicines, etc.Type: GrantFiled: March 6, 1990Date of Patent: April 20, 1993Assignee: Takeda Chemical Industries, Ltd.Inventors: Shoji Kishimoto, Takeshi Fujita
-
Patent number: 5200530Abstract: The invention relates to a new process for the reduction of 15-keto carbacyclin intermediates in the presence of cerium(III) Salts.Type: GrantFiled: July 31, 1991Date of Patent: April 6, 1993Assignee: Schering AktiengesellschaftInventors: Helmut Dahl, Gabriela Buttner, Dieter Peschel