The Spiro Includes A Three- Or Four-membered Hetero Ring Patents (Class 549/332)
  • Patent number: 5869698
    Abstract: 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: Grant
    Filed: August 12, 1997
    Date of Patent: February 9, 1999
    Assignee: Board of Governors of Wayne State University
    Inventors: Arthur P. Schaap, Louis J. Romano, Jaidev S. Goudar
  • Patent number: 5856522
    Abstract: 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: Grant
    Filed: June 25, 1997
    Date of Patent: January 5, 1999
  • Patent number: 5854235
    Abstract: 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: Grant
    Filed: November 3, 1997
    Date of Patent: December 29, 1998
    Assignee: Akzo Nobel N.V.
    Inventors: Johannes Antonius Maria Hamersma, Everardus Otto Maria Orlemans, Johannes Bernardus Maria Rewinkel
  • Patent number: 5851771
    Abstract: 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: Grant
    Filed: January 19, 1996
    Date of Patent: December 22, 1998
  • Patent number: 5846753
    Abstract: 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: Grant
    Filed: May 30, 1995
    Date of Patent: December 8, 1998
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Joseph A. Akkara, David L. Kaplan, Madhu S. R. Ayyagari, Kenneth A. Marx, Sanjay Kamtekar, Rajiv Pande, Sukant K. Tripathy, Jayant Kumar
  • Patent number: 5847161
    Abstract: 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: Grant
    Filed: June 13, 1997
    Date of Patent: December 8, 1998
  • Patent number: 5843681
    Abstract: 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: Grant
    Filed: October 11, 1996
    Date of Patent: December 1, 1998
  • Patent number: 5840919
    Abstract: 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: Grant
    Filed: October 17, 1995
    Date of Patent: November 24, 1998
  • Patent number: 5831102
    Abstract: 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: Grant
    Filed: February 8, 1996
    Date of Patent: November 3, 1998
  • Patent number: 5789604
    Abstract: 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: Grant
    Filed: May 12, 1993
    Date of Patent: August 4, 1998
    Assignee: American Cyanamid Company
    Inventors: Cedric John Pearce, Robert West, Gerhard Schlingmann
  • Patent number: 5789405
    Abstract: An oxaspiro ?2,5!octane derivative of the formula: ##STR1## useful in inhibiting angiogenesis in solid tumors.
    Type: Grant
    Filed: June 5, 1991
    Date of Patent: August 4, 1998
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Teruo Oku, Chiyoshi Kasahara, Takehiko Ohkawa, Masashi Hashimoto
  • Patent number: 5785887
    Abstract: 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: Grant
    Filed: February 20, 1996
    Date of Patent: July 28, 1998
    Assignee: Colgate-Palmolive Company
    Inventors: Robert Steltenkamp, Robert Heffner
  • Patent number: 5777135
    Abstract: 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: Grant
    Filed: July 31, 1995
    Date of Patent: July 7, 1998
    Assignees: Lumigen, Inc., Board of Governors Wayne State Univ.
    Inventors: Hashem Akhavan-Tafti, Renuka De Silva, A. Paul Schaap
  • Patent number: 5777133
    Abstract: 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: Grant
    Filed: January 28, 1997
    Date of Patent: July 7, 1998
  • Patent number: 5773628
    Abstract: 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: Grant
    Filed: November 14, 1994
    Date of Patent: June 30, 1998
    Assignee: Tropix, Inc.
    Inventors: Hashem Akhavan-Tafti, Zahra Arghavani, Robert A. Eickholt, Khaledur S. Rashid
  • Patent number: 5770743
    Abstract: 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: Grant
    Filed: March 25, 1994
    Date of Patent: June 23, 1998
    Assignee: Board of Governors of Wayne State University
    Inventors: Arthur P. Schaap, Louis J. Romano, Jaidev S. Goudar
  • Patent number: 5767293
    Abstract: 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: Grant
    Filed: August 5, 1994
    Date of Patent: June 16, 1998
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Teruo Oku, Chiyoshi Kasahara, Takehiko Ohkawa, Masashi Hashimoto
  • Patent number: 5721370
    Abstract: 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: Grant
    Filed: November 8, 1996
    Date of Patent: February 24, 1998
    Assignee: Lumigen Inc.
    Inventors: Hashem Akhavan-Tafti, Zahra Arghavani, Renuka DeSilva, Kumar Thakur
  • Patent number: 5719291
    Abstract: Compounds of the formula ##STR1## which have antifungal activity.
    Type: Grant
    Filed: May 3, 1995
    Date of Patent: February 17, 1998
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Yuhko Aoki, Hiromichi Kotaki, Kazunao Masubuchi, Toru Okuda, Nobuo Shimma, Takuo Tsukuda, Isao Umeda
  • Patent number: 5707559
    Abstract: 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: Grant
    Filed: March 9, 1987
    Date of Patent: January 13, 1998
    Assignee: Tropix, Inc.
    Inventors: Arthur Paul Schaap, Irena Y. Bronstein
  • Patent number: 5698586
    Abstract: 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: Grant
    Filed: July 21, 1992
    Date of Patent: December 16, 1997
    Assignee: Takeda Chemical Industries, Ltd
    Inventors: Shoji Kishimoto, Takeshi Fujita, Tsuneo Kanamaru, Moses Judah Folkman, Donald Ingber
  • Patent number: 5698714
    Abstract: 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: Grant
    Filed: July 11, 1996
    Date of Patent: December 16, 1997
    Assignee: Cerbios Pharma S.A.
    Inventors: Christof Schickli, Mathias Jud, Fabrizio Marazza
  • Patent number: 5679803
    Abstract: 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: Grant
    Filed: October 25, 1995
    Date of Patent: October 21, 1997
  • Patent number: 5679802
    Abstract: A compound of the formula ##STR1## where n, Q, and Z are as defined useful in chemiluminescent immunoassays.
    Type: Grant
    Filed: May 4, 1995
    Date of Patent: October 21, 1997
  • Patent number: 5672620
    Abstract: 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: Grant
    Filed: February 1, 1996
    Date of Patent: September 30, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Michael Wiard Scherz, Laurence Ichih Wu
  • Patent number: 5670663
    Abstract: 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: Grant
    Filed: February 14, 1996
    Date of Patent: September 23, 1997
    Assignee: Regents of the University of California
    Inventors: Don J. Durzan, Frank Ventimiglia
  • Patent number: 5663373
    Abstract: 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: Grant
    Filed: August 21, 1996
    Date of Patent: September 2, 1997
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Kunio Tamura, Yoshiaki Kato, Mitsutaka Yoshida, Osamu Cynshi, Yasuhiro Ohba
  • Patent number: 5652345
    Abstract: 4-(3-beta-D-galactopyranosylphenyl)-4-methoxyspiro[1,2-dioxetane-3,2'-adama ntane] which is useful in various chemiluminescent assays.
    Type: Grant
    Filed: January 25, 1994
    Date of Patent: July 29, 1997
    Assignee: Tropix, Inc.
    Inventors: Arthur Paul Schaap, Hashem Akhavan-Tafti
  • Patent number: 5648382
    Abstract: 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: Grant
    Filed: April 29, 1996
    Date of Patent: July 15, 1997
    Assignee: Adir et Compagnie
    Inventors: David Billington, Isabelle Picard, Ghanem Atassi, Alain Pierre, Michael Burbridge, Nicolas Guilbaud
  • Patent number: 5639918
    Abstract: (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: Grant
    Filed: September 26, 1994
    Date of Patent: June 17, 1997
    Assignee: Rhone-Poulenc Agrochimie
    Inventors: Jean Hutt, Jacques Mugnier, Alfred Greiner, Regis Pepin
  • Patent number: 5631353
    Abstract: Alkene adamantane compounds useful as intermediates for producing the corresponding 1,2-dioxetanes which are useful in chemiluminescent assays.
    Type: Grant
    Filed: July 27, 1995
    Date of Patent: May 20, 1997
    Assignee: Board of Governors of Wayne State University
    Inventors: Arthur P. Schaap, Hashem Akhavan-Tafti
  • Patent number: 5625077
    Abstract: A compound having the formula ##STR1##
    Type: Grant
    Filed: January 18, 1991
    Date of Patent: April 29, 1997
    Assignee: Tropix, Inc.
    Inventor: Irena Y. Bronstein
  • Patent number: 5616729
    Abstract: 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: Grant
    Filed: December 27, 1988
    Date of Patent: April 1, 1997
    Assignee: Board of Governors of Wayne State University
    Inventors: Arthur P. Schaap, Hashem Akhavan-Tafti
  • Patent number: 5602173
    Abstract: 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: Grant
    Filed: September 29, 1994
    Date of Patent: February 11, 1997
    Assignee: SmithKline Beecham Corporation
    Inventor: Siegfried B. Christensen, IV
  • Patent number: 5591591
    Abstract: 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: Grant
    Filed: February 9, 1995
    Date of Patent: January 7, 1997
  • Patent number: 5582980
    Abstract: 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: Grant
    Filed: April 25, 1994
    Date of Patent: December 10, 1996
  • Patent number: 5547836
    Abstract: 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: Grant
    Filed: March 15, 1993
    Date of Patent: August 20, 1996
  • Patent number: 5538847
    Abstract: 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: Grant
    Filed: May 7, 1993
    Date of Patent: July 23, 1996
  • Patent number: 5478954
    Abstract: 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: Grant
    Filed: July 28, 1993
    Date of Patent: December 26, 1995
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Javier Manero
  • Patent number: 5440050
    Abstract: 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: Grant
    Filed: October 18, 1994
    Date of Patent: August 8, 1995
    Assignee: Givaudan-Roure Corporation
    Inventors: 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: 5342966
    Abstract: 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: Grant
    Filed: May 1, 1990
    Date of Patent: August 30, 1994
  • Patent number: 5306809
    Abstract: 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: Grant
    Filed: December 31, 1991
    Date of Patent: April 26, 1994
    Assignee: Akzo N.V.
    Inventors: Petrus J. Boon, Franciscus M. Kaspersen, Ebo S. Bos
  • Patent number: 5288722
    Abstract: 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: Grant
    Filed: September 19, 1991
    Date of Patent: February 22, 1994
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Shoji Kishimoto, Shogo Marui, Takeshi Fujita
  • Patent number: 5250709
    Abstract: The present invention concerns novel dioxolane containing fluoroepoxides that are useful as curing materials, adhesives lubricants and coatings.
    Type: Grant
    Filed: November 10, 1992
    Date of Patent: October 5, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Ming-Hong Hung, Shlomo Rozen
  • Patent number: 5248618
    Abstract: 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: Grant
    Filed: June 5, 1991
    Date of Patent: September 28, 1993
    Assignee: Life Technologies, Inc.
    Inventor: Alberto Haces
  • Patent number: 5239089
    Abstract: 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: Grant
    Filed: July 8, 1992
    Date of Patent: August 24, 1993
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Satoru Kumazawa, Susumu Shimizu, Hiroyuki Enari, Atsushi Ito, Susumu Ikeda, Nobuo Sato, Toshihide Saishoji
  • Patent number: 5225584
    Abstract: 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: Grant
    Filed: April 3, 1991
    Date of Patent: July 6, 1993
    Assignee: Tropix, Inc.
    Inventors: Edwards Brooks, Juo Rhou-Rong
  • Patent number: 5220005
    Abstract: 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: Grant
    Filed: August 30, 1990
    Date of Patent: June 15, 1993
    Assignee: Tropix, Inc.
    Inventor: Irena Y. Bronstein
  • Patent number: 5204345
    Abstract: 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: Grant
    Filed: March 6, 1990
    Date of Patent: April 20, 1993
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Shoji Kishimoto, Takeshi Fujita
  • Patent number: 5200530
    Abstract: The invention relates to a new process for the reduction of 15-keto carbacyclin intermediates in the presence of cerium(III) Salts.
    Type: Grant
    Filed: July 31, 1991
    Date of Patent: April 6, 1993
    Assignee: Schering Aktiengesellschaft
    Inventors: Helmut Dahl, Gabriela Buttner, Dieter Peschel