Aldehyde Or Ketone Containing Patents (Class 514/666)
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Patent number: 8168675Abstract: The present invention relates to compositions and methods for treating neurodegenerative diseases. In some embodiments, the present invention provides compositions for treating and preventing presbycusis.Type: GrantFiled: December 31, 2008Date of Patent: May 1, 2012Assignee: Marin Bio Co., Ltd.Inventor: Shinichi Someya
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Publication number: 20100311843Abstract: The invention provides compositions and methods for the treatment of glomerulonephritis. In one embodiment, the invention provides a compound of formula (I) R-L-CO—X??(I) (wherein R is a C10-24 unsaturated hydrocarbon group optionally interrupted by one or more heteroatoms or groups of heteroatoms selected from S, O, N, SO, SO2, said hydrocarbon group comprising at least 4 non-conjugated double bonds; L is a linking group forming a bridge of 1 to 5 atoms between the R group and the carbonyl CO; and X is an electron withdrawing group) or a salt thereof for use in the treatment of glomerulonephritis.Type: ApplicationFiled: June 4, 2010Publication date: December 9, 2010Applicant: Avexxin ASInventors: Berit Johansen, Andrea Huwiler
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Publication number: 20100249166Abstract: Antimicrobial compositions and methods of using such antimicrobial compositions to provide a reduction in populations of viable microorganisms.Type: ApplicationFiled: September 12, 2008Publication date: September 30, 2010Applicants: XY, INC., CHATA BIOSYSTEMS, INC.Inventors: Edwin Dean Neas, Thomas Boyd Gilligan
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Publication number: 20100227935Abstract: The present invention relates to a new class of terpene-derived compounds having an antibiotic activity and of the formulae (I) or (II) in which A is selected from NR1, O, S, CR2R3 or R—(CH2)n—R?, wherein R and R? represent independently NH, O, S or CH2, and in which R1, R2 et R3 are substituents and n is higher than or equal to 1, in particular equal to 2. The invention relates to the compound according to both the formula (I) or the formula (II) taken individually, to mixtures of the two compounds, and to compositions, mainly therapeutic ones, comprising at least one of the compounds or said mixture. According to a particular embodiment, the compound ((I) or (II) taken individually, the mixtures of both compounds and the compositions of the invention are used in the treatment of difficult C-related digestive infections. In one particular embodiment, the compound of the formula (I) is margaucine, a compound produced by a bacterial stem.Type: ApplicationFiled: September 21, 2007Publication date: September 9, 2010Applicants: Centre National De La Recherche Scientifique, Universite De Provence-Aix-Marseille 1, Universite Paul Cezanne-Aix-Marseille 3Inventors: Jean-Paul Leonetti, Maxime Gualtieri, Laurence Coulibeuf, Gaëtan Herbette
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Patent number: 7709523Abstract: ?-Aminoamide derivatives useful as antimigraine agents, particularly for the treatment of head pain conditions such as migraine, cluster headache or other severe headache, are disclosed. The antimigraine agents of the invention are able to reduce or even stop the pain deriving from such conditions without, virtually, any side effects.Type: GrantFiled: November 18, 2003Date of Patent: May 4, 2010Assignee: Newron Pharmaceuticals SpAInventors: Patricia Salvati, Marcello Calabresi, Luciano Dho, Orietta Veneroni, Piero Melloni
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Patent number: 7413738Abstract: Activated polymeric bicine derivatives such as, as well as conjugates made therewith are disclosed. Methods of making and using the bicine derivatives are also disclosed.Type: GrantFiled: December 14, 2004Date of Patent: August 19, 2008Assignee: Enzon Pharmaceuticals, Inc.Inventors: Hong Zhao, Susan Adler, legal representative, Richard B. Greenwald
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Patent number: 7078047Abstract: Use of at least one material chosen from homopolymers and salts thereof of formula (I), defined herein, for moisturizing the skin, mucous membranes and/or keratin fibres, and/or as a moisturizer and/or emollient, for the skin, mucous membranes and/or keratin fibres. The invention also relates to a cosmetic or pharmaceutical composition for moisturizing the skin, mucous membranes and/or keratin fibres, comprising at least one material chosen from homopolymers and salts thereof of formula (I).Type: GrantFiled: March 4, 2002Date of Patent: July 18, 2006Assignee: L'Oreal S.A.Inventors: Michel Philippe, Sylvie Benard, Christian Blaise
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Patent number: 6974568Abstract: The invention discloses the existence of cannabinoid receptors in the airways, which are functionally linked to inhibition of cough. Locally acting cannabinoid agents can be administered to the airways of a subject to ameliorate cough, without causing the psychoactive effects characteristic of systemically administered cannabinoids. In addition, locally or systemically administered cannabinoid inactivation inhibitors can also be used to ameliorate cough. The present invention also defines conditions under which cannabinoid agents can be administered to produce anti-tussive effects devoid of bronchial constriction.Type: GrantFiled: May 23, 2001Date of Patent: December 13, 2005Assignee: The Regents of the University of CaliforniaInventor: Daniele Piomelli
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Patent number: 6924391Abstract: Inhibitors of the cytosolic phospholypase A2 enzymes are provided which are of use in controlling a wide variety of inflammatory diseases. The inhibitors of the present invention have the general formula wherein X, Z, X1, R1, R2, Ra, Rb, R3, R4 and Y are as defined in the specification.Type: GrantFiled: May 3, 2001Date of Patent: August 2, 2005Assignee: Bristol-Myers Squibb CompanyInventors: Jacques Banville, Roger Remillard, Neelakantan Balasubramanian, Gilles Bouthillier, Alain Martel
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Publication number: 20040254226Abstract: Pharmaceuticals, kits and methods are provided for use with DPP-IV and other S9 proteases that comprise a compound with the formula: 1Type: ApplicationFiled: May 13, 2004Publication date: December 16, 2004Applicant: Syrrx, Inc.Inventors: Jun Feng, Stephen L. Gwaltney, Jeffrey A. Stafford, Michael B. Wallace, Xiao-Yi Xiao, Zhiyuan Zhang
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Patent number: 6830754Abstract: Described in the present invention are a dispersion which comprises, as a dispersoid, (a) 5 to 40 wt. % of an amphipatic lipid containing, in the molecule thereof, at least one hydroxy and amide group, and (b) 2 to 55 wt. % of a surfactant in an aqueous medium; a washing-away type cosmetic composition comprising the dispersion; and a washing-away type cosmetic composition comprising (A) 0.01 to 10 wt. % of an amphipatic lipid which contains, in the molecule thereof, at least one hydroxy and amide group and having a melting point not less than 30° C. and (B) 5 to 95 wt. % of a surfactant. The dispersion according to the present invention is useful as a component of a washing-away type cosmetic composition having both an emulsion-like or pearl-lustrous appearance and low skin irritation.Type: GrantFiled: December 21, 1999Date of Patent: December 14, 2004Assignee: Kao CorporationInventors: Keiko Hasebe, Juri Sata, Yasuhiro Doi, Yoshinori Tamura, Masaki Inoue, Hiroshi Sonohara
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Publication number: 20040198820Abstract: The present invention provides an extended release oral dosage form of prodrugs of gabapentin and other GABA analogs, which dosage forms exhibit reduced toxicity. The dosage forms are particularly useful in administering those prodrugs of gabapentin and other GABA analogs that are metabolized to form an aldehyde. The dosage forms of the invention are useful for treating or preventing diseases and/or disorders for which the parent gabapentin or other GABA analog are known to be therapeutically effective.Type: ApplicationFiled: April 21, 2004Publication date: October 7, 2004Inventors: Kenneth C. Cundy, Mark A. Gallop
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Patent number: 6716882Abstract: The present invention discloses highly packed polycationic ammonium, sulfonium and phosphonium lipid compounds useful for making lipid aggregates for delivery of macromolecules and other compounds into cells. They are especially useful for the DNA-dependent transformation of cells. Methods for their preparation and use as intracellular delivery agents are also disclosed.Type: GrantFiled: April 23, 2002Date of Patent: April 6, 2004Assignee: Invitrogen CorporationInventors: Alberto Haces, Valentina C. Ciccarone
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Patent number: 6548552Abstract: An absorbent article, particularly a tampon having additives that reduce toxic shock syndrome toxin (TST-1) production is disclosed. The tampon has a combination of an effective amount of at least one oxygen inhibiting agent and an effective amount of at least one surface active agent applied to: the surface of the absorbent tampon material; the surfaces of the fibers comprising the tampon; to the tampon applicator; or any combination of the foregoing. The effective amounts of the oxygen inhibiting agent and the surface active agent are sufficient to reduce the toxin production at lease about 50%, but do not negatively affect the wearer's normal vaginal flora.Type: GrantFiled: September 10, 1998Date of Patent: April 15, 2003Assignee: The Brigham and Women's Hospital, Inc.Inventors: Robert L. Deresiewicz, Dennis L. Kasper
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Patent number: 6492560Abstract: The present invention provides discrete-length polyethylene glycol and polyethylene glycol containing compounds and methods for their preparation.Type: GrantFiled: September 24, 2001Date of Patent: December 10, 2002Assignee: The University of WashingtonInventors: D. Scott Wilbur, Pradip M. Pathare
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Publication number: 20020111347Abstract: The present invention relates to amino-alkyl derivatives for treating or preventing neuronal damage associated with neurological diseases. The invention also provides compositions comprising the compounds of the present invention and methods of utilizing those compositions for treating or preventing neuronal damage.Type: ApplicationFiled: January 3, 2002Publication date: August 15, 2002Inventors: Scott Harbeson, Michael Mullican
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Patent number: 6395189Abstract: A process is provided for both removing and controlling biofilms present in industrial cooling and process waters. The process provides a composition which includes the reaction products of an amino base, a formaldehyde, an alkylenepolyamine, and the ammonium salt of an inorganic or organic acid. The composition may be used to remove existing biofilms from process water equipment. Further, lower maintenance dosages may be used to maintain the equipment in a substantially biofilm-free condition.Type: GrantFiled: November 21, 2000Date of Patent: May 28, 2002Assignee: Polymer Ventures, Inc.Inventors: Jon O. Fabri, Walter D. Heslep
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Publication number: 20020058052Abstract: Described in the present invention are a dispersion which comprises, as a dispersoid, (a) 5 to 40 wt. % of an amphipatic lipid containing, in the molecule thereof, at least one hydroxy and amide group, and (b) 2 to 55 wt. % of a surfactant in an aqueous medium; a washing-away type cosmetic composition comprising the dispersion; and a washing-away type cosmetic composition comprising (A) 0.01 to 10 wt. % of an amphipatic lipid which contains, in the molecule thereof, at least one hydroxy and amide group and having a melting point not less than 30° C. and (B) 5 to 95 wt. % of a surfactant. The dispersion according to the present invention is useful as a component of a washing-away type cosmetic composition having both an emulsion-like or pearl-lustrous appearance and low skin irritation.Type: ApplicationFiled: December 21, 1999Publication date: May 16, 2002Inventors: KEIKO HASEBE, JURI SATA, YASUHIRO DOI, YOSHINORI TAMURA, MASAKI INOUE, HIROSHI SONOHARA
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Patent number: 6350767Abstract: The present invention relates to compounds, compositions containing them, and their use for treating medical disorders resulting from a deficiency in growth hormone.Type: GrantFiled: November 19, 1999Date of Patent: February 26, 2002Assignee: Novo Nordisk A/SInventors: Jesper Lau, Bernd Peschke, Thomas Kruse Hansen, Nils Langeland Johansen, Michael Ankersen
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Patent number: 6294697Abstract: The present invention provides discrete-length polyethylene glycol and polyethylene glycol containing compounds and methods for their preparation.Type: GrantFiled: April 17, 1998Date of Patent: September 25, 2001Assignee: The University of WashingtonInventors: D. Scott Wilbur, Pradip M. Pathare
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Patent number: 6217914Abstract: An ascorbic acid-based composition and related method for the treatment of aging or photo-damaged skin is disclosed. The composition includes water and ascorbic acid, at least a portion of which has generally been pretreated by being dissolved under relatively high temperature and concentration conditions. The composition typically includes at least about 5.0% (w/v) ascorbic acid and may advantageously be formulated to have a pH above 3.5. Generally, the composition also includes non-toxic zinc salt, tyrosine compound, and/or pharmaceutically acceptable carrier. In addition, the composition may include an anti-inflammatory compound, such as aminosugar and/or sulfur-containing anti-inflammatory compound. The topical composition may be in the form of a serum, a hydrophilic lotion, an ointment, a cream, or a gel.Type: GrantFiled: July 19, 1999Date of Patent: April 17, 2001Assignee: Bioderm, Inc.Inventor: Lorraine Faxon Meisner
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Patent number: 6218435Abstract: A method of reducing hair growth in a mammal includes applying, to an area of skin from which reduced hair growth is desired, a dermatologically acceptable composition containing a suppressor of the metabolic pathway for the conversion of glucose to acetyl-CoA.Type: GrantFiled: July 17, 1998Date of Patent: April 17, 2001Inventors: James Henry, Gurpreet Ahluwalia, Douglas Shander
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Patent number: 6149822Abstract: A process is provided for both removing and controlling biofilms present in industrial cooling and process waters. The process provides a composition which includes the reaction products of an amino base, a formaldehyde, an alkylenepolyamine, and the ammonium salt of an inorganic or organic acid. The composition may be used to remove existing biofilms from process water equipment. Further, lower maintenance dosages may be used to maintain the equipment in a substantially biofilm-free condition.Type: GrantFiled: March 1, 1999Date of Patent: November 21, 2000Assignee: Polymer Ventures, Inc.Inventors: Jon O. Fabri, Walter D. Heslep
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Patent number: 6028114Abstract: Use of at least one aminothiol ester derivative for the preparation of a pharmaceutical composition intended to increase the inhibition of a character resistant to the induction of apoptosis of transformed cells, this character being due to the bc12 gene present in these cells. The pharmaceutical composition is more particularly intended to treat pathologies chosen from breast cancers, B cell lymphomas, leukaemias, neuroblastomas, adenocarcinomas of the prostate, prolactinomas and other pituitary adenomas.Type: GrantFiled: May 25, 1999Date of Patent: February 22, 2000Assignee: Galderma Research & Development, S.N.C.Inventor: Gerard Quash
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Patent number: 6013658Abstract: There are disclosed novel synthetic peptides of formula (I) ##STR1## where A, B, D, E, F, G, J, m, n, and p are defined in the specification. Compounds of formula (I) promote the release of growth hormone in humans and animals. Growth promoting compositions containing such compounds of formula (I) as the active ingredient, methods of stimulating the release of growth hormone, and the use of such compounds of formula (I) are also disclosed.Type: GrantFiled: July 17, 1997Date of Patent: January 11, 2000Assignee: Novo Nordisk A/SInventors: Jesper Lau, Bernd Peschke, Thomas Kruse Hansen, Nils Langeland Johansen, Michael Ankersen
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Patent number: 5945091Abstract: A method of using compounds of formula I ##STR1## in which the C.dbd.C double bond is present in E and/or Z configuration and the variables have the following meanings:R.sup.1 denotes COOR.sup.5, COR.sup.5, CONR.sup.5 R.sup.6, CN, O.dbd.S(--R.sup.5).dbd.O, O.dbd.S(--OR.sup.5).dbd.O, R.sup.7 O--P(--OR.sup.8).dbd.O;R.sup.2 denotes COOR.sup.6, COR.sup.6, CONR.sup.5 R.sup.6, CN, O.dbd.S(--R.sup.6).dbd.O, O.dbd.S(--OR.sup.6).dbd.O, R.sup.7 O--P(--OR.sup.8).dbd.O;R.sup.3 denotes hydrogen, an optionally substituted aliphatic, cycloaliphatic, araliphatic or aromatic radical having in each case up to 18 carbon atoms;R.sup.4 denotes an optionally substituted aromatic or heteroaromatic radical containing from 5 to 12 ring atoms;R.sup.5 toR.sup.8 independently denote hydrogen, an open-chain or branched-chain aliphatic, araliphatic, cycloaliphatic or optionally substituted aromatic radical containing in each case up to 18 carbon atoms,where the variables R.sup.3 to R.sup.Type: GrantFiled: November 18, 1997Date of Patent: August 31, 1999Assignee: BASF AktiengesellschaftInventors: Thorsten Habeck, Alexander Aumuller, Volker Schehlmann, Horst Westenfelder, Thomas Wunsch
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Patent number: 5939458Abstract: Mammalian hair growth is reduced by applying an inhibitor of aminoacyl-tRNA synthetase to the skin.Type: GrantFiled: September 22, 1997Date of Patent: August 17, 1999Inventors: James P. Henry, Gurpreet S. Ahluwalia
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Patent number: 5908867Abstract: A method of reducing hair growth in a mammal includes applying, to an area of skin from which reduced hair growth is desired, a dermatologically acceptable composition containing a compound that inhibits the formation of glycoproteins, proteglycans, or glycosaminoglycans in an amount effective to cause a reduction in hair growth.Type: GrantFiled: July 18, 1996Date of Patent: June 1, 1999Inventors: James P. Henry, Gurpreet S. Ahluwalia, Edward Kaszynski, Douglas Shander
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Patent number: 5652273Abstract: A method of reducing hair growth in a mammal includes applying, to an area of skin from which reduced hair growth is desired, a dermatologically acceptable composition containing a suppressor of the metabolic pathway for the conversion of glucose to acetyl-CoA.Type: GrantFiled: November 30, 1995Date of Patent: July 29, 1997Inventors: James Henry, Gurpreet Ahluwalia, Douglas Shander
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Patent number: 5651997Abstract: An antacid composition comprises, as antacid ingredients, a hydrotalcite and dihydroxyaluminium aminoacetate in such a ratio that the former/the latter equals 30/70 to 90/10 (by weight). The composition may further comprises a readily acting or rapid effecting antacid ingredient such as a magnesium hydroxide in an amount of 10 to 50% by weight. The antacid composition is improved in antacid properties and rapid effecting properties, and is useful as a pharmaceutical composition comprising the antacid composition, a carrier, an additive, an additional pharmaceutically active ingredient and so on. The total amount of the antacid ingredients in the pharmaceutical composition may be 10% by weight or more. The pharmaceutical composition may be formed into a fine granule or a granule with utilizing granulation, or into a tablet by compression-molding.Type: GrantFiled: September 12, 1996Date of Patent: July 29, 1997Assignee: Takeda Chemical Industries, Ltd.Inventors: Tadashi Makino, Shigeyuki Marunaka, Soichiro Imoto
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Patent number: 5648087Abstract: The present invention relates to an anaesthetic veterinary pharmaceutical composition, comprising a general anaesthetic selected from phencyclidine derivatives such as ketamine or tiletamine, as well as 0.015 to 1.25 molar equivalents of selegiline, combined in a single pharmaceutical composition or presented separately.Type: GrantFiled: March 4, 1994Date of Patent: July 15, 1997Assignee: Sanofi Sante Nutrition AnimaleInventors: Patricia Ovaert, Eliane Boivin
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Patent number: 5587367Abstract: A pharmaceutical or cosmetic composition is disclosed comprising in combination a retinoid and a sterol capable of inhibiting the biosynthesis of cholesterol resulting in a synergistic effect in the treatment of disorders of epidermic keratinization, proliferation and/or sebaceous function.Type: GrantFiled: May 23, 1995Date of Patent: December 24, 1996Assignee: Centre International de Recherches Dermatologiques Galderma (CIRD Galderma)Inventors: Uwe Reichert, Rainer Schmidt, Braham Shroot
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Patent number: 5374658Abstract: Described herein is the use of a substantially pure form of an oxidized polyamine, and especially spermine dialdehyde, in the treatment of tissue grafts or other organs for transplantation. The compounds and treatment are especially useful in treating grafts for bone marrow transplants, whether they be allogeneic or autograft transplants.Type: GrantFiled: June 29, 1993Date of Patent: December 20, 1994Assignee: Ortho Phamaceutical CorporationInventor: Catherine Y. Lau
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Patent number: 5281622Abstract: Novel 2-(N-substituted-aminoalkyl)-5-(E)-alkylidene cyclopentanones, 2-(N-substituted-aminoalkyl)-5-(E)-arylalkylidene cyclopentanones, and derivatives thereof having the formula ##STR1## wherein x is methylene or ethylene; R.sub.1 is dimethylamino, diethylamino, 1-pyrrolidinyl, 1-piperidinyl, 4-morpholinyl, anilino or substituted anilino; R.sub.2 is hydrogen, straight or branched alkyl of 1 to 9 carbon atoms, aryl or arylalkyl; R.sub.3 is hydrogen, straight or branched alkyl of 1 to 9 carbon atoms, aryl or arylalkyl; and R.sub.4 is hydrogen, methyl, ethyl, allyl, benzyl, substituted benzyl, cyclopentyl, substituted cyclopentyl, cyclopenten-1-yl, or substituted cyclopenten-1-yl; and wherein aryl is phenyl or phenyl substituted with one or more methoxyl, hydroxyl, methylenedioxy, chloro, bromo, fluoro, ethoxycarbonylmethoxy, benzoxy, alkyl group, or their combination, possess anti-inflammatory, analgesic and anticancer properties.Type: GrantFiled: April 8, 1993Date of Patent: January 25, 1994Assignee: University of Pittsburgh of the Commonwealth System of Higher EducationInventors: Lan K. Wong, Hai-Tao Chen, Zhi-Zhong Ji
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Patent number: 5177083Abstract: A method to treat or prevent retroviral infection by administering a novel conjugate is described. Lucifer Yellow and its analogs are conjugated to compounds having carbonyl functional groups for reaction with the semicarbazide moiety of Lucifer Yellow to obtain the semicarbazone conjugate.Type: GrantFiled: September 11, 1989Date of Patent: January 5, 1993Assignee: The Scripps Clinic and Research FoundationInventors: Darryl C. Rideout, John Elder
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Patent number: 5171754Abstract: This invention relates to the use of oxidized polyamines, and especially aminoaldehydes such as spermine bisaldehyde both in vitro and in vivo to elicit an immunosuppressive response in living cells. It also relates to the therapeutic application of these compounds to induce an immunosuppressive response in living organism.Type: GrantFiled: September 18, 1990Date of Patent: December 15, 1992Assignee: Ortho Pharmaceutical CorporationInventor: Catherine Y. Lau
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Patent number: 4912138Abstract: Pharmaceutical preparations for veterinary use, in the form of concentrate solutions, containing Thiamphenicol as active ingredient are described.Type: GrantFiled: September 14, 1987Date of Patent: March 27, 1990Assignee: Zambon S.p.A.Inventors: Franco Pozzi, Claudia Tortora, Angelo Carenzi
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Patent number: 4895842Abstract: A phenylalanine derivative having the formula (I): ##STR1## where R.sup.1 and R.sup.2 are independently hydrogen provided that both R.sup.1 and R.sup.2 are not hydrogen at the same time;C.sub.1 -C.sub.8 alkyl which may be substituted with hydroxy, hydroxycarbonyl, C.sub.1 -C.sub.4 alkoxycarbonyl, C.sub.1 -C.sub.4 alkylmercapto, C.sub.1 -C.sub.4 alkoxy, carbamoyl, sulfamoyl, pyridyl, or phenyl which may further be substituted with nitro, C.sub.1 -C.sub.4 alkoxy, or halogen;C.sub.6 -C.sub.8 cycloalkyl which may be substituted with hydroxy, C.sub.1 -C.sub.4 alkoxy, hydroxylcarbonyl, C.sub.1 -C.sub.4 alkoxycarbonyl, or C.sub.1 -C.sub.4 alkyl;phenyl which may be substituted with halogen, nitro, trifluoromethyl, C.sub.1 -C.sub.4 alkoxy C.sub.1 C.sub.4 alkylmercapto, C.sub.1 -C.sub.4 alkylcarbonyl, phenylcarbonyl, hydroxycarbonyl, C.sub.1 -C.sub.4 alkoxycarbonyl, carbamoyl, sulfamoyl, amidino, pyridylcarbonyl, or C.sub.1 -C.sub.6 alkyl which may further be substituted with C.sub.1 -C.sub.Type: GrantFiled: September 29, 1986Date of Patent: January 23, 1990Assignees: Shosuke Okamoto, Showa Denko Kabushiki KaishaInventors: Shosuke Okamoto, Yoshio Okada, Akiko Okunomiya, Taketoshi Naito, Yoshio Kimura, Morihiko Yamada, Norio Ohno, Yasuhiro Katsuura, Yumi Seki
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Patent number: 4749792Abstract: Analgesic activity is exhibited by compounds having the formula ##STR1## and pharmaceutically acceptable salts thereof wherein R.sub.1, R.sub.2 and R.sub.4 are each independently hydrogen, alkyl, carboxyalkyl, halosubstituted alkyl, hydroxyalkyl, aminoalkyl, mercaptoalkyl, alkylthioalkyl, (cycloalkyl)alkyl, (heteroaryl)alkyl, arylalkyl, carbamoylalkyl, guanidinylalkyl, or heteroaryl, and R.sub.3 is hydroxymethylene or carbonyl.Type: GrantFiled: September 26, 1984Date of Patent: June 7, 1988Assignee: E. R. Squibb & Sons, Inc.Inventors: Sesha I. Natarajan, Eric M. Gordon