Containing At Least Two Hetero Rings Bridged Or Fused Among Themselves Or Bridged Or Fused With A Common Carbocyclic Ring System, (e.g., Rifamycin, Etc.) Patents (Class 435/119)
  • Patent number: 5773691
    Abstract: This invention relates to four chimeric genes, a first encoding lysine-insensitive aspartokinase (AK), which is operably linked to a plant chloroplast transit sequence, a second encoding lysine-insensitive dihydrodipicolinic acid synthase (DHDPS), which is operably linked to a plant chloroplast transit sequence, a third encoding a lysine-rich protein, and a fourth encoding a plant lysine ketoglutarate reductase, all operably linked to plant seed-specific regulatory sequences. Methods for their use to produce increased levels of lysine or threornine in the seeds of transformed plants are provided. Also provided are transformed plants wherein the seeds accumulate lysine or threonine to higher levels than untransformed plants.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 30, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Saverio Carl Falco, Sharon Jo Keeler, Janet Ann Rice
  • Patent number: 5753471
    Abstract: A process for the biotechnological preparation of alcohols, aldehydes and carboxylic acids by oxidation of compounds of the formula R.sup.1 --C(CH.sub.3).dbd.CR.sup.2 R.sup.3, where R.sup.1, R.sup.2 and R.sup.3 have the meanings indicated in the description, with the aid of microorganisms is described.
    Type: Grant
    Filed: December 28, 1995
    Date of Patent: May 19, 1998
    Assignee: BASF Aktiengesellschaft
    Inventors: Uwe Pressler, Friedhelm Balkenhohl, Bernhard Hauer, Wolfgang Ladner, Ursula Schnell, Horst Ralf Staudenmaier
  • Patent number: 5747303
    Abstract: The invention is directed to a novel compound of formula ##STR1## in which R is a hydroxyl, alkyloxy, phenylalkyloxy or --NH--CH.sub.2 --COOH radical, R' and R" are identical and are each a hydroxy or methoxy radical and R'" represents a hydrogen, bromine, chlorine or iodine atom or a nitro radical. The invention is also directed to the salts of said compounds and their use.
    Type: Grant
    Filed: November 19, 1996
    Date of Patent: May 5, 1998
    Assignee: Rhone-Poulenc Rorer S.A.
    Inventors: Jean-Jacques Debernard, Catherine Dubertret, Gerard Helynck, Jean Leboul, Jean-Paul Martin
  • Patent number: 5726055
    Abstract: A process for preparing 5-(4-?2-(N-methyl-N-(2-pyridyl)amino)-ethoxy!-benzyl)-2,4-thiazolidinedion e, by treating 5-(4-?2-(N-methyl-N-(2-pyridyl)amino)-ethoxy!benzylidene)-2,4-thiazolidine dione with a free whole yeast cell culture or immobilized whole yeast cells from Rhodotorula glutinis CBS 4406 or Rhodotorula rubra CBS 6469 as the microbial reductase source and recovering 5-(4-?2-N-methyl-(N-(2-pyridyl)amino)ethoxy!-benzyl)-2,4-thiazolidinedione , or a salt thereof.
    Type: Grant
    Filed: May 19, 1994
    Date of Patent: March 10, 1998
    Assignee: SmithKline Beecham plc
    Inventors: Richard Mark Hindley, Stefan Roland Woroniecki
  • Patent number: 5707839
    Abstract: The present invention relates to novel DNA sequences that encode for the branched-chain alpha-ketoacid dehydrogenase complex of an organism belonging to the genus Streptomyces and to novel polypeptides produced by the expression of such sequences. It also relates to novel methods of enhancing the production of natural avermectin, of producing a Streptomyces avermitilis bkd mutant and of producing novel avermectins through fermentation.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: January 13, 1998
    Assignee: Pfizer Inc.
    Inventors: Claudio D. Denoya, Kim J. Stutzman-Engwall
  • Patent number: 5702929
    Abstract: There is disclosed a novel compound having the formula ##STR1## which exhibits antifungal activity.
    Type: Grant
    Filed: October 21, 1996
    Date of Patent: December 30, 1997
    Assignee: Merck & Co., Inc.
    Inventors: Sandra A. Morris, James E. Curotto, Gerald F. Bills, Sarah J. Dreikorn, Stanley L. Streicher, Deborah L. Zink, John R. Thompson, Angela Basilio, Fernando Pelaez, Maria Teresa Diez, Francisca Vicente
  • Patent number: 5698423
    Abstract: A plant cell suspension culture to derive azadirachtin-producing cells is described. The culture overcomes the disadvantages of the present processes of seed extraction. The culture allows for the continuous production of azadirachtin that is free of pathogens and toxins, independent of environmental conditions. It yields a predictable quantity and quality of bioactive product and permits continuous production at a desired, contained location.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: December 16, 1997
    Assignee: Rohm and Haas Company
    Inventors: Lorraine Pierce Holowach-Keller, Irina Birman, Dennis Ray Patterson
  • Patent number: 5693504
    Abstract: A microorganism resistant to a nicotinic acid analogue, which has a plasmid containing part or whole of a biotin operon; and a process for producing biotin, which comprises culturing a microorganism described above in a medium to produce and accumulate biotin in the medium, and collecting biotin.
    Type: Grant
    Filed: December 14, 1995
    Date of Patent: December 2, 1997
    Assignees: Takeda Chemical Industries, Ltd., Shiseido Company, Limited
    Inventors: Naoyuki Kanzaki, Hiroyuki Kimura, Junji Matsui, Kazuo Nakahama, Ohji Ifuku
  • Patent number: 5686273
    Abstract: An improved method for producing natamycin by fermentation is disclosed.
    Type: Grant
    Filed: June 20, 1994
    Date of Patent: November 11, 1997
    Assignee: Cultor Food Science, Inc.
    Inventors: Michael Allen Eisenschink, James R. Millis, Phillip Terry Olson
  • Patent number: 5679563
    Abstract: Actinomadura roseorufa mutants characterized by the ability to produce by fermentation UK-61,689, an acidic polycyclic ether anticoccidial antibiotic previously available only by selective acid hydrolysis of UK-58,852; and Actinomadura roseorufa having the identifying characteristics of ATCC 53,666, ATCC 53,665, ATCC 53,664 and ATCC 53,674.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: October 21, 1997
    Assignee: Pfizer Inc.
    Inventor: Edward J. Tynan, III
  • Patent number: 5674490
    Abstract: The present invention is directed to a new antibiotic denominated antibiotic GE1655 complex, its factors antibiotic GE1655 factor A, antibiotic GE1655 factor B, and antibiotic GE1655 factor C, the pharmaceutical acceptable salts thereof, the pharmaceutical compositions thereof, and their use as medicaments against bacteria and fungi, particularly for the treatment of fungal infections in animals and human beings.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: October 7, 1997
    Assignee: Gruppa Lepetit S.p.A.
    Inventors: Franco Maria Spreafico, Ernesto Riva, Graziella Beretta, Khalid Islam, Maurizio Denaro
  • Patent number: 5674732
    Abstract: The present invention provides a novel culture which belongs to Actinoplanes (Actinoplanes sp. FERM BP-3832). This culture is capable of producing rapamycin more than ten times efficiently than the cultures which have been reported (e.g., Streptomyces hygroscopicus ATCC 29253). The present invention provides a process for the production of rapamycin which comprises cultivating Actinoplanes sp. FERM BP-3832 and thereafter isolating rapamycin from the fermentation mixture.
    Type: Grant
    Filed: October 26, 1994
    Date of Patent: October 7, 1997
    Assignee: Pfizer Inc.
    Inventors: Hiroyuki Nishida, Tatsuo Sakakibara, Yuji Yamauchi, Taisuke Inagaki, Yasuhiro Kojima, Nakao Kojima
  • Patent number: 5670345
    Abstract: Coal is treated aerobically or anaerobically to produce humic acid, volatile fatty acids, lower alcohols, and/or methane using a consortium of bacteria designated Mic-1 or KSARC56. This process can also be used to convert aromatic compounds, such as phenols and derivatives thereof, to methane and carbon dioxide.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 23, 1997
    Assignee: Arctech, Inc.
    Inventors: Kailash Chandra Srivastava, Daman S. Walia
  • Patent number: 5650292
    Abstract: Conjugates of chlorophyll (Chl) and bacteriochlorophyll (Bchl) derivatives with amino acids, peptides and proteins are provided by the invention. The amino acid, peptide or protein residue is linked to the 17-propionic acid group of a Chl or Bchl residue directly or through a chain. The conjugates are for use as photosensitizers in photodynamic therapy and in diagnostics of tumors. Conjugation with cell-specific ligands, such as hormones, growth factors or tumor-specific antibodies, will target the Chl or Bchl moiety to the tumor site. Thus, conjugates with melanocyte stimulating hormones are suitable for photodynamic therapy of melanoma tumors.
    Type: Grant
    Filed: July 31, 1995
    Date of Patent: July 22, 1997
    Assignee: Yeda Research and Development Co., Ltd.
    Inventors: Avigdor Scherz, Yoram Salomon, Leszek Fiedor
  • Patent number: 5646110
    Abstract: Fungicidal compositions comprising compounds of the general formula III ##STR1## cyclo-[Pec-MeAsp-MeVal-Val-MeVal-MeIle-Gly-MeVal-TyrOMe-D-Lact] (III) wherein each amino acid residue and the lactate residue independently may occur in L- or D-form, and derivatives thereof in combination with other biocidal agents are disclosed. Said compositions may be used for controlling fungi in crops and in the preservation of wood, paints, cosmetics, and edible products.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: July 8, 1997
    Assignee: Novo Nordisk A/S
    Inventors: Jens Breinholt, Ruby Ione Nielsen, Georg Wilhelm Jensen
  • Patent number: 5643760
    Abstract: Indolopyrrolocarbazole derivatives, such as, for example, 12,13-dihydro-1,11-dihydroxy-13-(.beta.-D-glucopyranosyl)-5H-indolo[2,3-a] pyrrolo[3,4-c]carbazole-5,7-(6H)-dione or 6-amino derivative thereof, are produced by glycosylating a precursor compound by cultivating with Microtetraspora sp. A34549, Saccharothrix aerocolonigenes ATCC 39243 or mutants thereof, in a nutrient medium containing the precursor compound.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 1, 1997
    Assignee: Banyu Pharmaceutical Co., Ltd.
    Inventors: Katsuhisa Kojiri, Hajime Suzuki, Hisao Kondo, Hiroyuki Suda
  • Patent number: 5630882
    Abstract: Method for producing sugar, characterized in that a polyether ionophore abiotic is used to suppress gram positive bacteria growth during the process.
    Type: Grant
    Filed: May 5, 1995
    Date of Patent: May 20, 1997
    Assignee: Union Nationale Des Groupements De Distallateurs D'Alcool (Ungda)
    Inventor: Michel de Miniac
  • Patent number: 5627068
    Abstract: A Monascus purpureus 94-25 (NBIMCC 2325) strain microorganism produces pigments and biologically active products when cultivated on a culture medium based on waste disposals from the milk industry. The pigmented product obtained possesses superoxide dismutase and antioxidant properties and has applications in the food and beverage industry and cosmetics industry. The present process is suitable for large scale manufacture and, by its application, a large amount of waste and by-products from the milk processing industry is utilized and thus an ecologically clean and wasteless technology is created.
    Type: Grant
    Filed: June 22, 1995
    Date of Patent: May 6, 1997
    Inventors: Anna V. Kujumdzieva, Jean N. Hallet, Valentin A. Savov, Tanya V. Rasheva
  • Patent number: 5624842
    Abstract: This invention relates to tricyclo compounds useful for treatment and prevention of resistance by transplantation, graft-versus-host diseases by medulla ossium transplantation, autoimmune diseases, infectious diseases, and the like, which can be represented by the following formula: ##STR1## to a process for their production, to a pharmaceutical composition containing the same and to a use thereof.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: April 29, 1997
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Masakuni Okuhara, Hirokazu Tanaka, Toshio Goto, Tohru Kino, Hiroshi Hatanaka
  • Patent number: 5620874
    Abstract: Compounds of formula (I): ##STR1## wherein R.sup.1 is hydrogen or methyl, R.sup.2 is hydrogen or (E)-2-methyl 2-butenoyloxy, and R.sup.3 is hydrogen or hydroxy, with the proviso that when R.sup.3 is hydrogen, R.sup.1 and R.sup.2 are both hydrogen, and when R.sup.2 is (E)-2-methyl 2-butenoyloxy, R.sup.1 is methyl; the compound of formula (II): ##STR2## and the compound of formula (III): ##STR3## are obtainable by the fermentation of Streptomyces E225 NCIB 12310 or Streptomyces E225B NCIB 12509. The compounds have antihelminthic utility.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: April 15, 1997
    Assignee: Pfizer Inc.
    Inventors: Rhona M. Banks, Geoffrey H. Baker, Roderick J. Dorgan, Mark E. Poulton
  • Patent number: 5614374
    Abstract: Pyrroloquinoline quinone-dependent glycerol dehydrogenase is provided which requires no surfactant for its solubilization and stabilization. The glycerol dehydrogenase has the following properties:(a) catalyzing the following reaction:glycerol+electron acceptor.fwdarw.glyceraldehyde+reduced electron acceptor,(b) optimum pH: pH 8-9,(c) pH stability: stable at pH 7-11,(d) optimum temperature: 20.degree.-25.degree. C,(e) thermal stability: stable at a temperature of 30.degree. C or less for 10 minutes at a pH of 7.0,(f) molecular weight: 70,000 by gel filtration and SDS polyacrylamide gel electrophoresis,(g) bound to pyrroloquinoline quinone as a prosthetic group,(h) soluble and stable without the need of an ionic or non-ionic surfactant.
    Type: Grant
    Filed: April 8, 1994
    Date of Patent: March 25, 1997
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Osao Adachi, Kazunobu Matsushita
  • Patent number: 5614546
    Abstract: There are disclosed novel compounds which are derived from the fermentation of a strain of Nodulisporium sp. The compounds are highly potent ectoparasiticidal, antiparasitic and, insecticidal gents.
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: March 25, 1997
    Assignee: Merck & Co., Inc.
    Inventors: Anne W. Dombrowski, Richard G. Endris, Gregory L. Helms, Otto D. Hensens, John G. Ondeyka, Dan A. Ostlind, Jon D. Polishook, Deborah L. Zink
  • Patent number: 5602012
    Abstract: Actinomadura roseorufa mutants characterized by the ability to produce by fermentation UK-61,689, an acidic polycyclic ether anticoccidial antibiotic previously available only by selective acid hydrolysis of UK-58,852; and Actinomadura roseorufa having the identifying characteristics of ATCC 53,666, ATCC 53,665, ATCC 53,664 and ATCC 53,674.
    Type: Grant
    Filed: November 22, 1994
    Date of Patent: February 11, 1997
    Assignee: Pfizer Inc.
    Inventor: Edward J. Tynan, III
  • Patent number: 5593871
    Abstract: This invention relates to the enantioselective biologically-catalyzed hydrolysis of certain racemic nitriles to the corresponding R- or S-amides, chemically or biologically-catalyzed hydrolysis of the amides to the corresponding R- or S-acids in a batch process or in a continuous process that employs racemization and recycling of enantiomeric nitrile intermediates, the racemic nitriles being selected from the group, A--C(R.sup.1)(R.sup.2)CN, wherein A, R.sup.1 and R.sup.2 are as defined in the text, as well as certain biological materials employed to catalyze the process.
    Type: Grant
    Filed: February 15, 1995
    Date of Patent: January 14, 1997
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: David L. Anton, Robert D. Fallon, Barry Stieglitz, Vincent G. Witterholt
  • Patent number: 5593870
    Abstract: The present invention is directed to a process for producing frenolicin B. The process comprises fermenting a broth so as to produce frenolicin, said broth having a microorganism capable of producing frenolicin. The frenolicin is then converted in the broth under anaerobic conditions to deoxyfrenolicin. The deoxyfrenolicin is converted to frenolicin B.
    Type: Grant
    Filed: September 14, 1994
    Date of Patent: January 14, 1997
    Assignee: Hoffmann-La Roche Inc.
    Inventors: David E. Block, Theron E. Hermann, Jih-Han Hsieh, Nikhil S. Mehta, Vishva R. Rai
  • Patent number: 5591614
    Abstract: This invention concerns a process for enzymatically preparing a compound of formula (1) ##STR1## from the compound of formula (2) ##STR2## by way of a microorganism or an acellular preparation derived from this microorganism. The microorganism and acellular preparation oxidizes the 2-3 bond of the macrolactones' D-proline into dehydroproline.
    Type: Grant
    Filed: April 5, 1995
    Date of Patent: January 7, 1997
    Assignee: Rhone-Poulenc Rorer, S.A.
    Inventors: Francis Blanche, Denis Thibaut
  • Patent number: 5589366
    Abstract: The present invention relates to certain antibiotic compounds, designated N787-182 compounds herein and derivatives thereof, which are antiparasitic agents, active against insect pests, acari, free-living nematodes and endo- and ectoparasites. This invention also relates to pharmaceutical and other compositions comprising such compounds, methods of using such compounds, the microorganism Streptomyces hygroscopicus ATCC 53718 and mutants or genetically transformed or recombinant form thereof, and processes for producing such compounds.
    Type: Grant
    Filed: November 9, 1995
    Date of Patent: December 31, 1996
    Assignee: Pfizer Inc.
    Inventors: Mark A. Haxell, David A. Perry, Hiroshi Maeda, Junsuke Tone
  • Patent number: 5589365
    Abstract: A compound of formula (VIII) ##STR1## is added to a culture media containing Microtetraspora sp. A34549 or Saccharothrix aerocolonigenes ATCC 39243.
    Type: Grant
    Filed: January 31, 1995
    Date of Patent: December 31, 1996
    Assignee: Banyu Pharmaceutical Co., Ltd.
    Inventors: Katsuhisa Kojiri, Hisao Kondo, Hiroharu Arakawa, Mitsuru Ohkubo, Hiroyuki Suda
  • Patent number: 5585505
    Abstract: The invention is directed to a hatching agent for hatching the species and patho types of nematodes causing potation sickness, which nematodes comprise Globodera pallida, from the cysts thereof, with a molecular weight of 498, a component C.sub.27 H.sub.30 O.sub.9 and the structure of formula (a) and the derivatives, esters and salts thereof.
    Type: Grant
    Filed: June 1, 1994
    Date of Patent: December 17, 1996
    Assignee: B.V. Chemische Pharmaceutische Industrie "Luxan"
    Inventors: Johan G. Mulder, Pieter Diepenhorst, Pieter Plieger, Ingrid E. M. Br uggemann-Rotgans
  • Patent number: 5583015
    Abstract: Streptomyces avermitilis lacking branched-chain amino acid transaminase activity and/or branched-chain 2-oxo acid dehydrogenase activity, methods for preparation thereof, and use thereof to produce natural and non-natural avermectins useful as parasiticides.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: December 10, 1996
    Assignee: Pfizer Inc.
    Inventors: Edmund W. Hafner, Kelvin S. Holdom, S. Edward Lee
  • Patent number: 5583029
    Abstract: Mutants of Streptomyces avermitilis lacking ability to produce glycosylated avermectins and lacking branched-chain 2-oxo acid dehydrogenase activity, method for preparation thereof, and use thereof to produce natural and non-natural avermectin aglycones useful as parasiticides.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: December 10, 1996
    Assignee: Pfizer Inc.
    Inventors: Lapyuen H. Lam, Hamish A. I. McArthur, Richard G. Wax
  • Patent number: 5576199
    Abstract: Streptomyces avermitilis lacking branched-chain 2-oxo acid dehydrogenase activity and avermectin B O-methyltransferase activity, method for preparation thereof, and use thereof to produce natural and non-natural B avermectins useful as parasiticides.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: November 19, 1996
    Assignee: Pfizer Inc.
    Inventors: Edmund W. Hafner, Kelvin S. Holdom, S. Edward Lee
  • Patent number: 5576200
    Abstract: Mutants of Streptomyces avermitilis lacking ability to produce glycosylated avermectins and lacking branched-chain 2-oxo acid dehydrogenase activity, method for preparation thereof, and use thereof to produce natural and non-natural avermectin aglycones useful as parasiticides.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: November 19, 1996
    Assignee: Pfizer Inc.
    Inventors: Lapyuen Lam, Hamish A. I. McArthur, Richard G. Wax
  • Patent number: 5569593
    Abstract: The present invention concerns a process for the production of pilocarpine, in which root formation is induced from part of a plant of the genus Pilocarpus, the said roots are cultivated in vitro in a culture medium and pilocarpine is isolated from the roots and/or the medium.
    Type: Grant
    Filed: March 14, 1995
    Date of Patent: October 29, 1996
    Assignee: Nestec S.A.
    Inventors: Didier Courtois, Vincent Petiard, Andr e Touche
  • Patent number: 5565345
    Abstract: A process for preparing 5,6-dihydro-4-hydroxy-(S)-6-methyl-thieno[2,3-b]thiopyran-7,7-dioxide having the formula (II): ##STR1## which comprises subjecting 5,6-dihydro-4-oxo-(S)-6-methyl-thieno[2,3-b]thiopyran-7,7-dioxide having the formula (I): ##STR2## to the action of a microorganism to reduce the thienothiopyran derivative having the formula (I), and collecting 5,6-dihydro-4-hydroxy-(S)-6-methyl-thieno-[2,3-b]thiopyran-7,7-dioxide having the formula (II) from the reaction mixture, wherein said microorganism belongs to the genus selected from the group consisting of Ambrosiozyma, Arthroascus, Ashbya, Candida, Cryptococcus, Hansenula, Kluyveromyces, Lipomyces, Lodderomyces, Metschnikowia, Pachysolen, Pichia, Rhodosporidium, Rhodotorula, Saccharomyces, Saccharomycopsis, Schwanniomyces, Sporidiobolus, Spolobolomyces, Stephanoascus, Trigonopsis, Trichosporon and Wingea, according to which, a simple and effective. process for preparing 5,6-dihydro-4-hydroxy-(S)-6-methyl-thieno-[2,3-b]thiopyran-7,7-dioxide.
    Type: Grant
    Filed: January 30, 1995
    Date of Patent: October 15, 1996
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Yoshihiko Yasohara, Yoshiko Tari, Noboru Ueyama, Junzo Hasegawa, Satomi Takahashi
  • Patent number: 5565486
    Abstract: Sesquiterpenes obtainable from the fungal strain Acremonium strictum XO6/15/458, and phannaceutically and veterinarily acceptable salts thereof, are inhibitors of the binding of benzodiazepine to the GABA-benzodiazepine-Cl ionophore receptor complex. These compounds are prepared by (i) fermenting, in a source of carbon, nitrogen and inorganic salts, fungal strain XO6/15/458 (IMI 354451) or a mutant thereof which produces the sesquiterpenes, (ii) isolating the sesquiterpenes from the fermentation medium; and (iii) if desired, converting the sesquiterpene into a pharmaceutically or veterinarily acceptable salt.
    Type: Grant
    Filed: August 29, 1995
    Date of Patent: October 15, 1996
    Assignee: Xenova Limited
    Inventors: Didier V. Renno, Gerard B. O'Beirne, Brent R. Copp
  • Patent number: 5565359
    Abstract: Streptomyces avermitilis lacking branched-chain 2-oxo acid dehydrogenase activity and avermectin B O-methyltransferase activity, method for preparation thereof, and use thereof to produce natural and non-natural B avermectins useful as parasiticides.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: October 15, 1996
    Assignee: Pfizer Inc.
    Inventors: Edmund W. Hafner, Kelvin S. Holdom, S. Edward Lee
  • Patent number: 5550041
    Abstract: A DNA fragment containing a caffeine demethylase gene produced by a microorganism belonging to the genus Pseudomonas and capable of assimilating caffeine and a process for producing a 3-methyl-7-alkylxanthine comprising cultivating a novel bacterium strain of the genus Pseudomonas having been transformed with a recombinant DNA having integrated therein the above-mentioned DNA fragment in a nutrient culture medium containing a 1,3-dimethyl-7-alkylxanthine to produce a 3-methyl-7-alkylxanthine in the culture and recovering the produced 3-methyl-7-alkylxanthine from the culture are disclosed, as well as a process for producing 3-methyl-7-propylxanthine, comprising cultivating a microorganism capable of converting 1,3-dimethyl-7-propylxanthine to 3-methyl-7-propylxanthine or a mutant thereof in a nutrient culture medium containing 1,3-dimethyl-7-propylxanthine, to produce 3-methyl-7-propylxanthine in the culture and recovering the produced 3-methyl-7-propylxanthine from the culture.
    Type: Grant
    Filed: October 18, 1994
    Date of Patent: August 27, 1996
    Assignee: Amano Pharmaceutical Co., Ltd.
    Inventors: Yoshinao Koide, Seiji Nakane, Yutaka Imai
  • Patent number: 5529911
    Abstract: Granules containing salinomycin are prepared that are free-flowing, dust-free, and have unrestricted bioavailability of salinomycin. The granules are produced by fermenting a culture broth with a salinomycin producing microorganism to a residual fat content of about 24 to 30% by dry weight broth, adding to the fermented broth a cellulose ether and an anticaking agent, and spray drying the broth while adding a flow auxiliary to produce granules containing 10 to 26% by weight salinomycin. The granules also contain, based on the weight of the broth being fermented, 30 to 40% anticaking agent and flow auxiliary in a ratio of 3:1 to 9:1 and 0.5 to 2% cellulose ether. The anticaking agent is preferably a calcium carbonate such as chalk or a silica of natural origin such as diatomaceous earth, talc, or kaolin. The flow auxiliary is preferably a synthetic or precipitated silica.
    Type: Grant
    Filed: August 19, 1994
    Date of Patent: June 25, 1996
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Rolf Hohl
  • Patent number: 5525506
    Abstract: Streptomyces avermitilis lacking branched-chain amino acid transaminase activity and/or branched-chain 2-oxo acid dehydrogenase activity, methods for preparation thereof, and use thereof to produce natural and non-natural avermectins useful as parasiticides.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: June 11, 1996
    Assignee: Pfizer Inc.
    Inventors: Edmund W. Hafner, Kelvin S. Holdom, S. Edward Lee
  • Patent number: 5510251
    Abstract: This invention relates to new agents designated LL-F28249.alpha., LL-F28249.beta., LL-F28249.gamma., LL-F28249.delta., LLF28249.epsilon., LL-F28249.zeta., LL-F28249.eta., LL-F28249.theta., LL-F28249.iota., LL-F28249.kappa., LL-F28249.lambda., LL-F28249.mu., LL-F28249.nu., and LL-F28249.omega., to their production by fermentation, to methods for their recovery and concentration from crude solutions, to processes for their purification and to pharmaceutically and pharmacologically-acceptable salts thereof. The present invention includes within its scope the biologically pure culture which produces there agents, derived from a newly-discovered and previously uncultured microorganism, Streptomyces cyaneogriseus subsp. noncyanogenus, NRRL 15773.
    Type: Grant
    Filed: October 4, 1994
    Date of Patent: April 23, 1996
    Assignee: American Cyanamid Company
    Inventors: Guy T. Carter, Margaret J. Torrey, Michael Greenstein
  • Patent number: 5496715
    Abstract: There is disclosed a process for preparing indigo which comprises bringing an indigo-producing bacteria belonging to genus Acinetobacter or treated products thereof into contact with an aqueous solution containing at least indole to have indigo formed and accumulated in the aqueous solution; and collecting indigo from the aqueous solution.
    Type: Grant
    Filed: August 24, 1994
    Date of Patent: March 5, 1996
    Assignees: Mitsubishi Chemical Corporation, Petroleum Energy Center
    Inventors: Makoto Goto, Terukazu Nara, Masato Terasawa, Hideaki Yukawa
  • Patent number: 5494820
    Abstract: A compound of the formula ##STR1## is a novel immunosuppressant agent prepared by fermenting Steptomyces braeaensis subsp. pulcherrimus, ATCC 55150, or another compound of the formula I producing strain and extracting the compound of the formula I from the fermentation medium. The compound is useful in treating transplant rejection and autoimmune diseases.
    Type: Grant
    Filed: January 24, 1994
    Date of Patent: February 27, 1996
    Assignee: Pfizer Inc.
    Inventors: Walter P. Cullen, Mark A. Guadliana, Liang H. Huang, Keiji Kaneda, Nakao Kojima, Gloria Kostek, Satoshi Nishiyama, Yuji Yamauchi, Yasuhiro Kojima
  • Patent number: 5491229
    Abstract: A compound of formula (I).
    Type: Grant
    Filed: June 1, 1994
    Date of Patent: February 13, 1996
    Assignee: SmithKline Beecham PLC
    Inventor: Peter R. Shelley
  • Patent number: 5484708
    Abstract: The invention concerns a method for the colorimetric determination of an analyte by means of enzymatic oxidation with a PQQ-dependent dehydrogenase in the presence of an electron acceptor from the group of the electron-rich aromatic nitroso compounds by enzymatic reduction of the nitroso compound to an imino compound and detection of the imino compound by color formation. In addition the invention concerns a corresponding agent containing a PQQ-dependent dehydrogenase, an electon-rich aromatic nitroso compound as well as, if desired, a detection reagent for imino compounds. The invention in addition concerns novel nitrosoamino compounds which form colored quinone diimines on reduction as well as their use for the colorimetric enzymatic determination of an analyte.
    Type: Grant
    Filed: April 8, 1994
    Date of Patent: January 16, 1996
    Assignee: Boehringer Mannheim GmbH
    Inventors: Joachim Hoenes, Volker Unkrig
  • Patent number: 5484717
    Abstract: This invention relates to antibiotic 31F508.alpha..sub.1, 31F508.alpha..sub.2, 31F508.beta..sub.1 and 31F508.beta..sub.2, derived from the microorganism Streptomyces viridodiastaticus subsp. "littus" which are useful as an anti-bacterial agent.
    Type: Grant
    Filed: May 1, 1995
    Date of Patent: January 16, 1996
    Assignee: American Cyanamid Company
    Inventor: Joseph A. Zaccardi
  • Patent number: 5478735
    Abstract: An acidic polycyclic ether antibiotic, having structure established by X-ray crystallography, is formed by fermentation of a novel microorganism, Actinomadura sp. ATCC 53764. This novel antibiotic is useful as an anticoccidial in chickens, in the prevention or treatment of swine dysentery, and as a growth promotant in cattle and swine.
    Type: Grant
    Filed: September 6, 1994
    Date of Patent: December 26, 1995
    Assignee: Pfizer Inc.
    Inventors: John P. Dirlam, Walter P. Cullen, Hiroshi Maeda, Junsuke Tone
  • Patent number: 5478734
    Abstract: An enzymatic process for the preparation of chiral epoxides, monohydroxy or dihydroxy compounds of formula ##STR1## by the stereoselective epoxidation or hydroxylation of benzopyrans of formula ##STR2## or resolution of compounds of formula ##STR3## The compounds of formula I and II are intermediates useful in the preparation of pyranyl cyanoguanidine derivatives.
    Type: Grant
    Filed: February 7, 1994
    Date of Patent: December 26, 1995
    Assignee: Bristol-Myers Squibb Company
    Inventors: Ramesh N. Patel, Amit Banerjee, Clyde McNamee, David Brzozowski, Laszlo J. Szarka
  • Patent number: 5478929
    Abstract: There are disclosed novel compounds which are derived from 22,23-dihydro avermectin B1 aglycone. The compounds are both isomers of the 27-hydroxy adduct of the substrate avermectin compound that have been glycosylated at the 4" position to yield 4"-O-glucosyl 27-OH avermectin compounds. The compounds and the intermediates used to make them are highly potent antiparasitic, insecticidal and anthelmintic avermectin agents.
    Type: Grant
    Filed: May 20, 1994
    Date of Patent: December 26, 1995
    Assignee: Merck & Co., Inc.
    Inventors: Byron H. Arison, Patrick J. Doherty, Marvin D. Schulman
  • Patent number: 5472873
    Abstract: A Rhodotorula rubra strain has been found which reduces pentoxifylline to 100% to give the S-alcohol. Moreover, other oxoalkylxanthine derivatives can also be converted into the corresponding S-alcohol. The microbiologically obtained S-(+)-enantiomers can then be converted stereo-selectively into the respective R-(-)-enantiomers. The corresponding S-alcohols and the R-alcohols obtained by enantioselective inversion of configuration cause an increase in cerebral blood flow.
    Type: Grant
    Filed: February 10, 1994
    Date of Patent: December 5, 1995
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Werner Aretz, Harald Furrer, Ulrich Gebert, Heinz-Joachim Hinze