Additional Chalcogen Bonded Directly To The Lactone Ring Patents (Class 549/292)
  • Patent number: 6552204
    Abstract: The present invention relates to a novel process for producing a &dgr;-lactone of the formula: using an acyl halide of the formula: wherein R1, R2 R3 and X are described herein. In particular, the present invention relates to a process for enantioselectively producing the &dgr;-lactone and novel intermediates disclosed herein.
    Type: Grant
    Filed: September 22, 2000
    Date of Patent: April 22, 2003
    Assignee: Roche Colorado Corporation
    Inventors: Peter J. Harrington, Lewis M. Hodges, Kurt Puentener, Michelangelo Scalone
  • Patent number: 6545165
    Abstract: The present invention relates to a novel process for producing a &dgr;-lactone of the formula: using an acyl halide of the formula: wherein R1, R2 R3 and X are described herein, as well as novel intermediates. In particular, the present invention relates to a process for enantioselectively producing the (R)-&dgr;-lactone.
    Type: Grant
    Filed: September 22, 2000
    Date of Patent: April 8, 2003
    Assignee: Roche Colorado Corporation
    Inventors: Michael P. Fleming, Yeun-Kwei Han, Lewis M. Hodges, David A. Johnston, Roger P. Micheli, Kurt Puentener, Chris R. Roberts, Michelangelo Scalone, Mark A. Schwindt, Robert J. Topping
  • Publication number: 20030065195
    Abstract: The present invention relates to novel ether compounds, compositions comprising ether compounds, and methods useful for treating and preventing cardiovascular diseases, dyslipidemias, dysproteinemias, and glucose metabolism disorders comprising administering a composition comprising an ether compound. The compounds, compositions, and methods of the invention are also useful for treating and preventing Alzheimer's Disease, Syndrome X, peroxisome proliferator activated receptor-related disorders, septicemia, thrombotic disorders, obesity, pancreatitis, hypertension, renal disease, cancer, inflammation, and impotence. In certain embodiments, the compounds, compositions, and methods of the invention are useful in combination therapy with other therapeutics, such as hypocholesterolemic and hypoglycemic agents.
    Type: Application
    Filed: July 26, 2002
    Publication date: April 3, 2003
    Applicant: Esperion Therapeutics, Inc.
    Inventors: Jean-Louis Henri Dasseux, Carmen Daniela Oniciu
  • Patent number: 6541511
    Abstract: The present invention relates to a novel methyl analog of simvastatin, which has the ability to inhibit the synthesis of cholesterol. The compound of the present invention holds promise for the treatment and prophylaxis of hypercholesterolemia and of various cardiac disorders. The invention also relates to a process for making the novel compound.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: April 1, 2003
    Assignee: Ranbaxy Laboratories Limited
    Inventors: Rajesh Kumar Thaper, Saridi Madhava Dileep Kumar, Yatendra Kumar
  • Publication number: 20030050482
    Abstract: The present invention relates to a process for preparing lovastatin and simvastatin which comprises (1) performing step of a lactonization of mevinic acid and analog thereof compounds in the presence of a dehydrating agent and without an acid catalyst under nitrogen sweep; and then (2) making step of crystals at a high temperature. In the process of the present invention, lovastatin and simvastatin highly purified can be produced in a high yield and especially, heterodimers formed as a by-product can be reduced in an amount remarkably. Therefore, the process of the present invention is convenient and economical.
    Type: Application
    Filed: July 23, 2002
    Publication date: March 13, 2003
    Inventors: Kwang-Hyeg Lee, Jin-Wan Kim, Myeong-Sik Yoon, Kwang-Do Choi, Sang-Ho Lee, Hong-Suk Cho
  • Patent number: 6531460
    Abstract: Compounds expressed by the following general formula (1), The compounds can be used as active ingredients of treating agents for inflammatory respiratory diseases, malignant tumors, rheumatoid arthritis, osteoporosis, diabetes mellitus, hypertension; alopecia, acne, psoriasis, dermatitis, hypercalcemia, hypoparathyroidism and metabolic disorder of cartilage.
    Type: Grant
    Filed: April 23, 2001
    Date of Patent: March 11, 2003
    Assignee: Teijin Limited
    Inventors: Kazuya Takenouchi, Qingzhi Gao, Kenji Manabe, Ryo Sogawa, Yasuhiro Takano, Seiichi Ishizuka
  • Patent number: 6528510
    Abstract: The present invention relates to novel dihydropyrones with tethered heterocycles having improved pharmacologic properties which potently inhibit the HIV aspartyl protease blocking HIV infectivity. The dihydropyrones are useful in the development of therapies for the treatment of viral infections and diseases, including AIDS. The present invention is also directed to methods of synthesis of the dihydropyrones and intermediates useful in the preparation of the final compounds.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: March 4, 2003
    Assignee: Warner-Lambert Company
    Inventors: Frederick Earl Boyer, Jr., John Michael Domagala, Edmund Lee Ellsworth, Christopher Andrew Gajda, Susan Elizabeth Hagen, Michael James Lovdahl, Elizabeth Ann Lunney, Larry James Markoski, Josyula Venkata Nagendra Vara Prasad, Bradley Dean Tait
  • Patent number: 6528489
    Abstract: The present invention provides a treatment for mammalian diseases characterized by aberrant cell proliferation. The treatment consists of administering therapeutically active dosages of antibiotic inhibitors such as efrapeptin oligopeptides or mycotoxin derivatives including those comprising a-zearalenol structural motifs resulting in inhibition of cell mitosis.
    Type: Grant
    Filed: September 21, 2000
    Date of Patent: March 4, 2003
    Assignee: Ergon Pharmaceuticals LLC
    Inventor: Adonia E. Papathanassiu
  • Patent number: 6525205
    Abstract: Crystalline 3-hydroxylactone-containing products can be prepared in high yield and purity in a one-pot process by treating the corresponding 3,5-dihydroxy acid with a strong mineral acid in a cold, aprotic, water-miscible solvent to effect lactonization, followed by addition of excess acid to effect crystallization of the lactonized product from the reaction mixture.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: February 25, 2003
    Assignee: Merck & Co., Inc.
    Inventors: James McManus, Nicholas Anousis, John F. Genus, Christopher Hancock
  • Patent number: 6521762
    Abstract: A process reducing the levels of dimeric impurities in a statin to less than 0.08% by treatment of a statin containing more than 0.08% dimeric impurities with a mild base in a suitable solvent mixture.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: February 18, 2003
    Assignee: Biogal Gyógyszergyar Rt.
    Inventors: Vilmos Keri, Ilona Forgas
  • Patent number: 6518303
    Abstract: 2-Phenylpyran-4-one derivatives of formula (I): wherein: R1 represents an alkyl or —NR4R5 group, wherein R4 and R5 each independently represents a hydrogen atom or an alkyl group; R2 represents an alkyl, C3-C7 cycloalkyl, pyridyl, thienyl, naphthyl, tetrahydronaphthyl or indanyl group, or a phenyl group which may be unsubstituted or substituted by one or more halogen atoms or alkyl, trifluoromethyl, hydroxy, alkoxy, methylthio, amino, mono- or dialkylamino, hydroxalkyl or hydroxycarbonyl groups; R3 represents a methyl, hydroxymethyl, alkoxymethyl, C3-C7 cycloalkoxymethyl, benzyloxymethyl, hydroxycarbonyl, nitrile, trifluoromethyl or difluoromethyl group or a CH2—R6 group wherein R6 represents an alkyl group; and X represents a single bond, an oxygen atom, a sulfur atom or a methylene group; or pharmaceutically acceptable salts thereof, processes for their production and synthetic intermediates used in said processes, pharmaceutical compositions containing them and their use
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: February 11, 2003
    Assignee: Almirall Prodesfarma S.A.
    Inventors: Maria Isabel Crespo Crespo, Juan Miguel Jimenez Mayorga, Carles Puig Duran, Lidia Soca Pueyo
  • Patent number: 6512006
    Abstract: The present invention related to novel dihydropyrones possessing 3-position nitrogen atom, which inhabit the HIV aspartyl protease blocking HIV infectivity. The dihydropyrones are useful in the development of therapies for the treatment of viral infections, and diseases, including AIDS.
    Type: Grant
    Filed: August 17, 2000
    Date of Patent: January 28, 2003
    Assignee: Warner-Lambert Company
    Inventors: Frederick Earl Boyer, Jr., John Michael Domagala, Edmund Lee Ellsworth, Christopher Andrew Gajda, Elizabeth Ann Lunney, Alexander Pavlovsky, Vara Prasad Venkata Nagendra Josyula, Bradley Dean Tait
  • Patent number: 6509479
    Abstract: This invention relates to a novel method for the removal of a silyl protecting group from the 4-hydroxy group of tetrahydropyran-2-ones, which method is particularly suitable in the process for the preparation of simvastatin and derivatives and analogs thereof.
    Type: Grant
    Filed: September 21, 2001
    Date of Patent: January 21, 2003
    Assignee: LEK Pharmaceuticals d.d.
    Inventors: Marko Zlicar, Rudolf Rucman
  • Patent number: 6506910
    Abstract: A more practical synthesis for preparing discodermolide and structurally related analogues, novel compounds useful in the process and novel compounds prepared by the process.
    Type: Grant
    Filed: August 3, 2001
    Date of Patent: January 14, 2003
    Assignee: Novartis AG
    Inventor: Frederick Ray Kinder, Jr.
  • Patent number: 6506929
    Abstract: A process is disclosed for the preparation of simvastatin which enables highly regio selective C-methylation of the 2′-position group of lovastatin without requiring protection/deprotection of 13-OH of lovastatin and lactone ring opening/closure.
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: January 14, 2003
    Assignee: Apotex Inc.
    Inventors: Khashayar Karimian, Tim Fat Tam, Yong Tao, Yiwei Li, Gary Doucette
  • Publication number: 20020198389
    Abstract: A more practical synthesis for preparing discodermolide and structurally related analogues, novel compounds useful in the process and novel compounds prepared by the process.
    Type: Application
    Filed: August 3, 2001
    Publication date: December 26, 2002
    Inventor: Frederick R. Kinder
  • Patent number: 6495594
    Abstract: The subject invention provides novel compositions of biologically active discodermolide compounds which can advantageously be used for immunomodulation and/or treating cancer. The compounds of the subject invention have utility for use in the treatment of cancer, as tubulin polymerizers and as microtubule stabilization agents. The present invention also pertains to the identification of regions of the discodermolide molecule which are responsible for certain aspects of the bioactivity of discodermolide compounds.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: December 17, 2002
    Assignee: Harbor Branch Oceanographic Institution, Inc.
    Inventors: Sarath P. Gunasekera, Ross E. Longley, Richard A. Isbrucker, Gopal K. Paul, Shirley A. Pomponi, Amy E. Wright
  • Publication number: 20020173541
    Abstract: 4-Hydroxy-6-methyl-3-(3-methylbutanoyl)-2-pyrone has a rapid controlling effect against arthropods such as Dictyoptera insects (e.g. German cockroach, smokybrown cockroach).
    Type: Application
    Filed: September 20, 2001
    Publication date: November 21, 2002
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Shunichi Kubota, Michihiko Fujinami
  • Publication number: 20020165269
    Abstract: The invention relates to a new process for preparing optically active dihydropyrones, new intermediate products which may be obtained by this synthesis, and their use as starting compounds in the preparation of pharmaceutically active compounds.
    Type: Application
    Filed: February 14, 2002
    Publication date: November 7, 2002
    Inventors: Markus Sauter, Burkhard Jaeger
  • Publication number: 20020161037
    Abstract: The invention relates to a continuous process for preparing dihydropyrones of general formula I, 1
    Type: Application
    Filed: February 14, 2002
    Publication date: October 31, 2002
    Inventors: Oliver Meyer, Markus Sauter, Mark Goehlich
  • Patent number: 6472542
    Abstract: Simvastatin is produced from lovastatin in high yield and in pharmaceutical purity by forming an amide of lovastatin and protecting the free hydroxyl groups of the lovastatin amide with hexamethyidisilazane (HMDS) to form a protected lovastatin amide. The &agr;-carbon of the 2-methylbutyrate secondary chain of the protected lovastatin amide may be methylated to form a protected simvastatin amide. The protecting groups may be removed therefrom by quenching the methylation reaction with water. The simvastatin amide which is obtained may be hydrolyzed to form simvastatin acid, followed by forming a simvastatin ammonium salt, lactonizing the salt to form simvastatin, and recrystallizing the thus formed crude Simvastatin to a high degree of purity. The HMDS protecting agent for the lactone hydroxyl groups of Lovastatin is selected so as to result in a reaction that does not produce acid so that a base, such as imidazole, is not required to neutralize the acidity of the reaction medium.
    Type: Grant
    Filed: November 29, 2001
    Date of Patent: October 29, 2002
    Assignee: FERMIC S.A. de C.V.
    Inventors: Edvige Galeazzi, Gustavo A. Garcia, Fernando Lara, Gema Lopez, Orestes Martinez, Eugenio Tisselli, Alicia Trejo
  • Publication number: 20020156298
    Abstract: Crystalline 3-hydroxylactone-containing products can be prepared in high yield and purity in a one-pot process by treating the corresponding 3,5-dihydroxy acid with a strong mineral acid in a cold, aprotic, water-miscible solvent to effect lactonization, followed by addition of excess acid to effect crystallization of the lactonized product from the reaction mixture.
    Type: Application
    Filed: April 5, 2002
    Publication date: October 24, 2002
    Applicant: Merck & Co., Inc.
    Inventors: James McManus, Nicholas Anousis, John F. Genus, Christopher Hancock
  • Patent number: 6465509
    Abstract: The invention encompasses the novel compounds of Formula I, which are useful in the treatment of cyclooxygenase-2 mediated diseases. The invention also encompasses certain pharmaceutical compositions comprising compounds of Formula I as well as methods of treating cyclooxygenase-2 mediated diseases comprising administering to a patient in need of such treatment a non-toxic therapeutically effective amount of a compound of Formula I.
    Type: Grant
    Filed: June 27, 2001
    Date of Patent: October 15, 2002
    Assignee: Merck Frosst Canada & Co.
    Inventors: Chun-Sing Li, Cheuk Kun Lau, Michel Therien, Petpiboon Prasit
  • Publication number: 20020147351
    Abstract: Lactonization of statins can be achieved using a lactonization agent that forms a hydrated complex with the produced water that is insoluble in the reaction solvent. By binding the produced water in an insoluble complex, the reaction is pulled to the lactone side, using mild conditions in short reactions times and with reduced risk of impurities.
    Type: Application
    Filed: March 11, 2002
    Publication date: October 10, 2002
    Inventors: Theodorus H. A. Peters, Frantisek Picha, Jacobus M. Lemmens
  • Patent number: 6444452
    Abstract: A novel process for recovering a compound from a fermentation broth that includes the stages of forming an enriched solution of the compound by extraction, obtaining a salt of the compound from the enriched solution, purifying a salt of the compound and trans-salifying the salt of the compound to a metal salt of the compound is disclosed.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: September 3, 2002
    Assignee: Biogal Gyogyszergyar Rt.
    Inventors: Vilmos Keri, Lajos Deak, Ilona Forgacs, Csaba Szabo, Edit Arvai Nagyne
  • Patent number: 6441030
    Abstract: Novel 3-phenyl-pyrones of the formula in which A, D, X and Y are each as defined in the description, a process for preparing these substances and their use as pesticides, fungicides and herbicides.
    Type: Grant
    Filed: April 6, 2001
    Date of Patent: August 27, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Folker Lieb, Reiner Fischer, Alan Graff, Udo Schneider, Michael Ruther, Christoph Erdelen, Wolfram Andersch, Ulrike Wachendorff-Neumann, Gerd Hänssler, Astrid Mauler-Machnik, Klaus Stenzel
  • Publication number: 20020103387
    Abstract: Compounds which mimic the chemical and/or biological activity of discodermolide are provided and intermediates useful in their preparation.
    Type: Application
    Filed: December 6, 2000
    Publication date: August 1, 2002
    Inventors: Amos B. Smith, Thomas J. Beauchamp, Matthew J. LaMarche
  • Patent number: 6420417
    Abstract: Provided are novel benzothiepines, derivatives, and analogs thereof; pharmaceutical compositions containing them; and methods of using these compounds and compositions in medicine, particularly in the prophylaxis and treatment of hyperlipidemic conditions such as those associated with atherosclerosis or hypercholesterolemia, in mammals. Also provided are compositions and methods for combination therapy employing ileal bile acid transport inhibitors and HMG Co-A reductase inhibitors for the treatment of hyperlipidemic conditions.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: July 16, 2002
    Assignee: G. D. Searle & Co.
    Inventors: Bradley T. Keller, Kevin C. Glenn, Robert E. Manning
  • Patent number: 6414122
    Abstract: Embodiments include reagents to modify a bioactive species for incorporating a bifunctional boronic compound complexing moiety for subsequent conjugation to a different or same bioactive species having pendant phenylboronic acid moieties of General Formula I, wherein group R is an electrophilic or nucleophilic moiety suitable for reaction of the putative bifunctional boronic compound complexing reagent with a bioactive species, wherein group R2 is selected from one of H and OH moieties, and wherein group R3 is selected from one of an alkyl and a methylene bearing an electronegative substituent. Group Z is a spacer selected from (CH2)n and CH2O(CH2CH2O)n2, wherein n is an integer of from 1 to 5, and wherein n2 is an integer of from 1 to 4. Group Z2 and Z3 is a spacer and need not be the same.
    Type: Grant
    Filed: August 29, 2000
    Date of Patent: July 2, 2002
    Assignee: Prolinx, Inc.
    Inventors: Clarence N. Ahlem, Robert J. Kaiser, Kevin P. Lund, Mark L. Stolowitz
  • Publication number: 20020058690
    Abstract: The invention encompasses the novel compounds of Formula I, which are useful in the treatment of cyclooxygenase-2 mediated diseases.
    Type: Application
    Filed: June 27, 2001
    Publication date: May 16, 2002
    Inventors: Chun-Sing Li, Cheuk Kun Lau, Michel Therien, Petpiboon Prasit
  • Patent number: 6387258
    Abstract: A process for purifying statin compounds from a fermentation broth by extraction and crystallization is disclosed. A fermentation broth is subjected to a pretreatment procedure which involves an alkaline pretreatment and an alkaline purification. Following the pretreatment procedure, the statin compound is extracted under acidic conditions into a hydrophobic solvent and purified by crystallization. The organic extraction solvent is concentrated and then extracted with a mild base. The statin compound is then purified by crystallization.
    Type: Grant
    Filed: January 25, 2001
    Date of Patent: May 14, 2002
    Assignee: Biogal Gyogyszergyar Rt.
    Inventors: Vilmos Keri, Lajos Deak, Iiona Forgacs
  • Patent number: 6384238
    Abstract: Lovastatin, pravastatin, simvastatin, mevastatin, derivatives and analogs thereof are known as HMG-CoA reductase inhibitors and are used as antihypercholesterolemic agents. The majority of them are produced by fermentation using microorganisms of different species identified as species belonging to Aspergillus, Monascus, Nocardia, Amycolatopsis, Mucor or Penicillium genus, and some are obtained by treating the fermentation products using the methods of chemical synthesis for example simvastatin. This invention relates to the novel method for the acylation of sterically hindered alcohols which is applicable in the process for the preparation of simvastatin and derivatives thereof.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: May 7, 2002
    Assignee: Lek Pharmaceutical and Chemical Company d.d.
    Inventor: Marco Zlicar
  • Patent number: 6380401
    Abstract: Crystalline 3-hydroxylactone-containing products can be prepared in high yield and purity in a one-pot process by treating the corresponding 3,5-dihydroxy acid with a strong mineral acid in a cold, aprotic, water-miscible solvent to effect lactonization, followed by addition of excess acid to effect crystallization of the lactonized product from the reaction mixture.
    Type: Grant
    Filed: October 23, 2000
    Date of Patent: April 30, 2002
    Assignee: Merck & Co., Inc.
    Inventors: James McManus, Nicholas Anousis, John Genus, Christopher Hancock
  • Patent number: 6380400
    Abstract: The present invention relates to methods of making dihydropyrone HIV inhibitors.
    Type: Grant
    Filed: October 31, 2000
    Date of Patent: April 30, 2002
    Inventors: Victor Fedij, Christopher Andrew Gajda, Brian Keith Huckabee, Brian Stuart Moon, Kenneth Thomas Porter, Denis Martin Sobieray, Timothy Lee Stuk, Bradley Dean Tait, James Norton Wemple
  • Patent number: 6376683
    Abstract: The present invention relates to an improved, efficient and enantio-selective process for the synthesis of (4R, 6S)-4-hydroxy-6-hydroxymethyl tetrahydropyran-2-one, employing the Sharpless asymmetric dihydroxylation and regiospecific nucleophilic hydride opening of the cyclic sulfite/sulfate as the key steps. The invention also resides in the intermediates used in the process.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: April 23, 2002
    Assignee: Council of Scientific & Industrial Research
    Inventors: Pradeep Kumar, Rodney Agustinho Fernandes
  • Publication number: 20020042525
    Abstract: 4-Hydroxy-6-methyl-3-(4-methyl-2-pentenoyl)-2-pyrone is obtained by allowing 2,3-dihydro-7-methyl-2-(1-methylethyl)-4H,5H-pyrano[4,3-b]pyran-4,5-dione to react with at least one inorganic compound selected from alkali hydroxides, alkaline earth hydroxides, alkali carbonates, alkaline earth carbonates and alkali fluorides in an alcohol, water or a mixture thereof.
    Type: Application
    Filed: August 29, 2001
    Publication date: April 11, 2002
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Kazuya Ujihara
  • Patent number: 6365382
    Abstract: The very effective conversion of ML-236B substances and derivatives thereof into 6′-hydroxylated products with the microorganisms of species Amycolatopsis orientalis, or with an extract or a hydroxylation-effective enzyme derived from said microorganism, is described. The products obtained are suitable as HMG-CoA reductase inhibitors or intermediates thereof. Thus, the products can be used, for example, as an antihypercholesterolemic in pharmacy.
    Type: Grant
    Filed: December 27, 2000
    Date of Patent: April 2, 2002
    Assignee: LEK Pharmaceuticals and Chemical Company D.D.
    Inventors: Sa{haeck over (s)}o Kranjc, Irena Ivanc, Manica Schauer
  • Patent number: 6355810
    Abstract: Disclosed are multibinding compounds which inhibit 3-hydroxy-3-methylglutaryl coenzyme A reductase (HMG-COA reductase), the rate limiting enzyme in cholesterol biosynthesis. The multibinding compounds of this invention containing from 2 to 10 ligands covalently attached to one or more linkers. Each ligand is a moiety capable of binding to HMG-CoA reductase and the distance between ligands is at least 10 Å. The multibinding compounds of this invention are useful in the treatment and prevention of hypercholesterolemia, hyperlipidemia, atherosclerosis and the like.
    Type: Grant
    Filed: June 4, 1999
    Date of Patent: March 12, 2002
    Assignee: Advanced Medicine, Inc.
    Inventors: John H. Griffin, Michael R. Leadbetter, Donald E. Schmidt, Jr.
  • Publication number: 20020028955
    Abstract: The present invention relates to a new process for effectively converting the chirality of 4- or 5-position carbon of a 1,4-lactone- or 1,5-lactone sugar compound which comprises reacting the lactone compound with secondary amine and sulfonyl group-containing compound. The compound of which chirality is converted according to the present invention can be advantageously used for preparing such expensive rare sugar compounds as L-ribose, D-talose, etc.
    Type: Application
    Filed: July 20, 2001
    Publication date: March 7, 2002
    Inventors: Sang Jo Lee, Myung Joon Seo, Nak Cheol Jeong, Gun Cheol Kim, Hyun Woung Hong, Sul A. Kim
  • Publication number: 20020028954
    Abstract: The invention concerns compounds of formula (I) wherein: A represents R1 or (O)R1 where R1 represents an alkyl group comprising 1 to 30 carbon atoms, linear or branched, saturated or unsaturated, capable of being partly or totally substituted by Hal where Hal represents —Cl, —Br, or —F, and of being interrupted by one or several units selected among —O—, —S—, —C(O)—, —NR3C(O)—, —Ph(R4)n and —CH2—CH2—O)n—, wherein R3 represents or —CH2)n″—CH where n″=0 to 17; R4 represents, —CH3, —CH2H5, —C3H7 and n=0 to 4 and n′=1, 2 or 3, or R1 represents a cyclanic radical with diterpene or triterpene root; and R2 represents a C1-C11 linear or branched alkyl group.
    Type: Application
    Filed: May 17, 2001
    Publication date: March 7, 2002
    Inventors: Chadi Khoury, Michel Minier, Francois Le Goffic
  • Publication number: 20010053859
    Abstract: A process for manufacturing Simvastatin is provided comprising reacting lovastatin with an organic boronic acid to produce a derivative of lovastatin with a hemiboronate group attached to the C-4 carbon of the pyranyl group, methylating the 2-methylbutyryloxy group on the lovastatin derivative to form a 2,2-dimethylbutyryloxy group on the lovastatin derivative and thereafter removing the hemiboronate group to produce simvastatin.
    Type: Application
    Filed: November 21, 1996
    Publication date: December 20, 2001
    Inventors: K. S. KESHAVA MURTHY, STEPHEN E HORNE, GAMINI WEERATUNGA, SHAWN YOUNG
  • Patent number: 6331641
    Abstract: This invention provides an easy and efficient process for producing a simvastatin of great use as an HMG-CoA reductase inhibitor, which comprises deacylation of lovastatin with an inorganic base and a secondary or tertiary alcohol and subjecting the resulting diol lactone to selective protection with a ketal or acetal protective group, acylation and deprotection-lactonization to give simvastatin.
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: December 18, 2001
    Assignee: Kaneka Corporation
    Inventors: Naoaki Taoka, Kenji Inoue
  • Patent number: 6306629
    Abstract: The present invention is related to a new microorganism Streptomyces exfoliatus YJ-118 and a method for producing pravastatin sodium by using this microorganism which shows a strong tolerance to ML-236B and a high hydroxylation activity of ML-236B to pravastatin.
    Type: Grant
    Filed: December 29, 1999
    Date of Patent: October 23, 2001
    Assignee: Yungjin Pharmaceutical Ind. Co., Ltd.
    Inventors: Joo-Kyung Lee, Joo-Woong Park, Dong-Jin Seo, Sang-Choon Lee, Ji-Yoon Kim
  • Patent number: 6307066
    Abstract: A process for manufacturing Simvastatin is provided comprising reacting lovastatin with an organic boronic acid to produce a derivative of lovastatin (lovastatin phenylboronate) methylating the 2-methylbutyryloxy group on the lovastatin derivative to form a 2,2-dimethylbutyryloxy group on the lovastatin derivative and thereafter removing the boronate group to produce simvastatin.
    Type: Grant
    Filed: November 21, 1996
    Date of Patent: October 23, 2001
    Assignee: Brantford Chemicals Inc.
    Inventors: K. S. Keshava Murthy, Stephen E. Horne, Gamini Weeratunga, Shawn Young
  • Patent number: 6294680
    Abstract: A process has been provided to produce semi synthetic statins, as for instance simvastatin with a high yield, for another statin, preferably a naturally occurring statin, as for instance lovastatin. Also a number of novel intermediate compounds, prepared during said process, has been provided.
    Type: Grant
    Filed: January 5, 2000
    Date of Patent: September 25, 2001
    Assignee: Plus Chemicals, B.V.
    Inventors: Ton Rene Vries, Hans Wijnberg, Wijnand Sjourd Faber, Venetka Ivanova Kalkman-Agayn, Mieke Ivanova Sibeyn
  • Patent number: 6288109
    Abstract: The invention relates to a novel 2H-1-pyran-2-ones of general formula (I), wherein R1 represents an alkyl radical with 2-5 C atoms, a cycloakyl radical with 4-6 C atoms, a cycloalkyl radical with 4-8 C atoms or an alkoxy alkyl radical with a total of 3-5 C atoms and R2 represents a 2-(3, 4-methylene dioxyphenyl) radical or a 2-phenyl ethenyl radical substituted with R3, R4 and R5 in positions 3, 4 and 5, whereby independently from each other R3 and R5 represent methoxy or ethoxy and R4 is a straight chain or branched alkoxy radical with 1-5 C atoms, an alkenyl radical with 3-5 C atoms, a cycloalkoxy radical with 4-6 C atoms, a cycloalkyl radical with 4-8 C atoms or an alkoxy alkoxy radical with a total of 3-5 C atoms. The invention also relates to a method for producing said compunds in addition to novel untermediate products and to a method for the production thereof.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: September 11, 2001
    Assignee: Dr. Willmar Schwabe GmbH & Co.
    Inventors: Shyam Sunder Chatterjee, Hermann Hauer
  • Patent number: 6278001
    Abstract: A novel method for preparing (+)compactin and (+)mevinolin analog compounds having a &bgr;-hydroxy-&dgr;-lactone grouping is disclosed. The method for preparing said compounds uses novel reaction intermediates. Said reaction intermediates and the respective methods for preparing same are also disclosed.
    Type: Grant
    Filed: October 8, 1997
    Date of Patent: August 21, 2001
    Assignee: L'Oréal
    Inventors: Guy Solladie, Claude Bauder
  • Patent number: 6271398
    Abstract: A process for the production of simvastatin and its analogues that is efficient, economical and convenient involves the use of hydroxyl protected intermediates of formula (III) or (VII). These intermediates allow for direct alkylation of the butyrate side chain followed by deprotection and reformation of the lactone ring. R1 is hydrogen or methyl; R2 represents a straight or branched chain alkyl group having 1 to 8 carbon atoms, a cycloalkyl group having 3 to 7 carbon atoms, or an aralkyl group having 1 to 6 carbon atoms in the alkyl chain; R3 and R4 each independently represent an alkyl group, an ether group, a thioether group, an aryl group, an aralkyl group, an alkenyl group, a cyclic ether group, or a cyclic thioether group; and R5 and R6 each independently represent hydrogen, an alkyl group, an aryl group, an aralkyl group, an alkoxy group, or an ether group.
    Type: Grant
    Filed: June 19, 2000
    Date of Patent: August 7, 2001
    Assignee: Synthon BV
    Inventors: Frans Van Dalen, Jacobus Maria Lemmens, Gertruda Antonetta Philomina Van Helvoirt, Theororus Hendricus Antonius Peters, Frantisek Picha
  • Patent number: 6268186
    Abstract: The invention provides a simple and selective method for the deacylation of 4-acylated statins during the preparation of statins from a fermentation broth, more specifically a reduction of impurities from the process, by increasing the pH of the fermentation broth.
    Type: Grant
    Filed: January 12, 2000
    Date of Patent: July 31, 2001
    Assignee: DSM N.V.
    Inventors: Mieke Sibeijn, Aad Johannes Bouman, Robertus Mattheus De Pater, Cornelis Frederik Purmer
  • Patent number: 6261826
    Abstract: Antibitic TKR2648 having the following chemical formula (I) or its pharmacologically acceptable salt.
    Type: Grant
    Filed: March 26, 1999
    Date of Patent: July 17, 2001
    Assignee: Takara Shuzo Co., Ltd.
    Inventors: Kazutoh Takesako, Hideharu Saito, Mitsuhiro Ueno, Naoyuki Awazu, Ikunoshin Kato