Abstract: Selected sulfonylalkanoylamino hydroxyethylamine sulfonamide compounds are effective as retroviral protease inhibitors, and in particular as inhibitors of HIV protease. The present invention relates to such retroviral protease inhibitors and, more particularly, relates to selected novel compounds, composition and method for inhibiting retroviral proteases, such as human immunodeficiency virus (HIV) protease, prophylactically preventing retroviral infection or the spread of a retrovirus, and treatment of a retroviral infection.
Type:
Grant
Filed:
September 29, 2000
Date of Patent:
April 30, 2002
Assignee:
G. D. Searle & Co.
Inventors:
Daniel P. Getman, Gary A. DeCrescenzo, John N. Freskos, Michael L. Vazquez, James A. Sikorski, Balekudru Devadas, Srinivasan Nagaraian, Joseph J. McDonald
Abstract: 7-substituted fused ring tetracycline compounds, methods of treating tetracycline responsive states, and pharmaceutical compositions containing the 7-substituted fused ring tetracycline compounds are described.
Abstract: A method of modifying or altering the structure of a 1&agr;-hydroxylated vitamin D compound to increase its biological activity by altering the conformational equilibrium of the A-ring to favor a chair conformation that presents the 1&agr;-hydroxyl in the axial orientation. This is accomplished by either locking the A-ring chair conformation in a geometry having an axially orientated 1&agr;-hydroxyl, or by the addition of one or more substituents to the A-ring which interact with other substituents in the molecule or on the A-ring to provide a driving force to the A-ring to adopt a chair conformation which presents the 1&agr;-hydroxyl in the axial orientation.
Abstract: The claimed invention relates to cyclic dienol ethers of formula (III).
wherein R3 is hydrogen and R4 is C1-4 alkoxy or R3 and R4 together form an optionally substituted methylenedioxy group —O—C(R5)(R6)—O—, wherein R5 and R6 are each independently hydrogen, C1-4 alkyl or phenyl.
Abstract: The present invention regards a three-step process for the synthesis of 5-(&agr;-hydroxyalkyl) benzo[1,3]dioxols. The process comprises: (i) the reaction of pyrocatechin (1,2-dihydroxybenzene) with a dihalo or di-alkoxyalkane, with the formation of a benzo[1,3]dioxol derivative; (ii) 5-selective catalytic acylation of the benzo[1,3]dioxol, with formation of a 5-alkanoylbenzo[1,3]dioxol and its subsequent (iii) reduction to 5-(&agr;-hydroxyalkyl) benzo[1,3]dioxol. Also described are new benzodioxols obtainable using the above-mentioned process. The process of the invention is industrially simple and has low environmental impact; it allows to obtain in high yields derivatives of considerable interest, in particular for the perfumery industry, and in the sector of insecticides.
Abstract: Retinoid antagonist compounds have been found to be useful in the prevention and/or minimization of surgical adhesion formation.
Also provided by the invention are certain novel substituted (5,6)-dihydronaphthalenyl compounds which are retinoid antagonists and possess the above-mentioned property in addition to their use as antiinflammatory agents for chronic skin inflammatory diseases, as agents for the treatment of rheumatic diseases and as agents for the treatment of various tumors as well as non-malignant proliferative skin conditions.
Type:
Grant
Filed:
December 8, 2000
Date of Patent:
November 20, 2001
Assignee:
Bristol-Myers Squibb Company
Inventors:
Kenneth M. Tramposch, Xina Nair, Anne Marinier, Fred Christopher Zusi
Abstract: Selected bis-amino acid hydroxyethylamino sulfonamide compounds are effective as retroviral protease inhibitors, and in particular as inhibitors of HIV protease. The present invention relates to such retroviral protease inhibitors and, more particularly, relates to selected novel compounds, composition and method for inhibiting retroviral proteases, such as human immunodeficiency virus (HIV) protease, prophylactically preventing retroviral infection or the spread of a retrovirus, and treatment of a retroviral infection.
Type:
Grant
Filed:
February 1, 2000
Date of Patent:
November 13, 2001
Assignee:
G. D. Searle & Co.
Inventors:
Daniel P Getman, Gary A DeCrescenzo, John N Freskos, Michael L Vazquez, James A Sikorski, Balekudru Devadas, Srinivasan Raj Nagarajan, David L Brown, Joseph J McDonald
Abstract: Intermediate compounds, including 2-(t-butyldimethylsilyloxymethyl)-3,4-[(dimethylmethylene)dioxy]-5-hydroxy-tricyclo[5.2.1.02,6]dec-8-ene, which are useful for the synthesis of neplanocin A having strong antitumor activity. Improved processes for the preparation of neplanocin A, starting from optically active 2-hydroxymethyl-5-hydroxy-tricyclo[5.2.1.02,6]deca-3,8-diene and via a key step comprising a retro-Diels-Alder reaction of the above intermediate.
Abstract: Selected amino acid hydroxyethylamino sulfonamide compounds are effective as retroviral protease inhibitors, and in particular as inhibitors of HIV protease. The present invention relates to such retroviral protease inhibitors and, more particularly, relates to selected novel compounds, composition and method for inhibiting retroviral proteases, such as human immunodeficiency virus (HIV) protease, prophylactically inhibiting retroviral infection or the spread of a retrovirus, and treatment of a retroviral infection.
Type:
Grant
Filed:
December 1, 1999
Date of Patent:
October 30, 2001
Assignee:
G. D. Searle & Co.
Inventors:
Daniel P Getman, Gary A. DeCrescenzo, John N. Freskos, Michael L. Vazquez, James A. Sikorski, Balekudru Devadas, Srinivasan Nagarajan, David L. Brown, Joseph J. McDonald
Abstract: The present invention provides compounds represented by the general formula (I):
and a salt thereof, and anti-inflammatory agents and antitumor agents containing the compounds as the active ingredients.
Abstract: The fungicidal compound 4,5-dimethyl-N-2-propenyl-2-(trimethylsilyl)-3-thiophenecarboxamide (Formula (I)) has shown superior and unexpected control of the growth of the soil-borne fungus Gaeumannomyces graminis (Gg). The present invention provides a novel compound for synthesizing the compound of Formula (I) which uses the compound 4-hydroxy-4,5-dimethyl-2-trimethylsilanyl-dihydrothiophene-3-carboxylic acid allylamide (Formula (II)) as well as novel compounds of synthesizing the allylamide. In addition, Formula (II) itself has unexpectedly been found to provide control of Gg.
Type:
Grant
Filed:
July 5, 2000
Date of Patent:
September 18, 2001
Assignee:
Monsanto company
Inventors:
Wendell G. Phillips, Michael K. Mao, Chun Ma, Thomas L. Fevig
Abstract: Pesticidally active cyclohexadienyl derivative compounds of the formula I that are esters, oximes or amides are claimed. These compounds may be used as fungicides, acaricides and insecticides in plant protection.
Type:
Grant
Filed:
December 10, 1998
Date of Patent:
September 11, 2001
Assignee:
Bayer Aktiengesellschaft
Inventors:
Henry Szczepanski, Martin Zeller, Ottmar Franz Hüter
Abstract: The novel two-stage process described here makes it possible to obtain substituted benzyl compounds and toluene derivatives in a simple manner and in high yields by means of Suzuki-type coupling reactions of an aromatic with an organoboron compound, followed by a reduction. The process is particularly useful for preparing ortho-substituted benzyl compounds and toluene derivatives. The process can be applied to both intermolecular and intramolecular coupling reactions. Catalysts used for the coupling reaction are palladium compounds and/or nickel compounds. An advantageous aspect is that only very small amounts of catalyst are required.
Type:
Application
Filed:
February 22, 2001
Publication date:
September 6, 2001
Applicant:
Clariant GmbH
Inventors:
Steffen Haber, Stefan Scherer, Heinz Georg Kautz, Andreas Meudt, Frank Vollmuller
Abstract: The invention relates to novel cyclic imines of the formula (I)
in which
Ar1 and Ar2 each represent substituted phenyl and
n represents 1,
to a process for their preparation and to their use as pesticides.
Type:
Grant
Filed:
May 11, 1999
Date of Patent:
August 14, 2001
Assignee:
Bayer Aktiengesellschaft
Inventors:
Andrew Plant, Gerd Kleefeld, Thorsten Pötter, Christoph Erdelen, Norbert Mencke, Andreas Turberg, Ulrike Wachendorff-Neumann
Abstract: The following description refers to a new process for the synthesis of 5-alkylated benzo[1,3]dioxole, comprising the following steps in sequence: catalytic hydrogenation of 4-acylphenol; acylation; displacement catalysed by Lewis acids; treatment with an inorganic basic compound and hydrogen peroxide; reaction with alkyl dihalides or dialkoxyalkanes.
The process described herein, which yields 5-alkylbenzo[1,3]dioxoles, is economic and can be easily scaled up to industrial size.
Type:
Grant
Filed:
April 13, 2000
Date of Patent:
June 26, 2001
Assignee:
Endura S.P.A.
Inventors:
Valerio Borzatta, Dario Brancaleoni, Christian Battistini
Abstract: Novel compounds, compositions and methods effective for the prevention and treatment of mast-cell mediated inflammatory disorders are described. The compounds, compositions and methods are effective for the prevention and treatment of inflammatory diseases associated with the respiratory tract, such as asthma and allergic rhinitis, as well as other types of immunomediated inflammatory disorders, such as rheumatoid arthritis, conjunctivitis and inflammatory bowel disease, various dermatological conditions, as well as certain viral conditions. The compounds comprise potent and selective inhibitors of the mast cell protease tryptase. The compositions for treating these conditions include oral, inhalant, topical and parenteral preparations as well as devices comprising such preparations.
Type:
Grant
Filed:
March 29, 1999
Date of Patent:
April 3, 2001
Assignee:
Axys Pharmaceuticals, Inc
Inventors:
Ken Duane Rice, Jeffrey Mark Dener, Anthony Robert Gangloff, Elaine Yee-Lin Kuo
Abstract: A process for the preparation of 3-substituted 4-cyano-pyrrole compounds of the formula (I)
in which
Ar has the meaning given in the description, by reaction in a 1st stage of bromides (II)
Ar—Br (II)
with acrylonitrile in the presence of a solvent and a suitable reaction auxiliary to give acrylonitrile derivatives (III)
Ar—CH═CH—CN (III)
and in a 2nd stage with a phenylsulphonylmethyl isocyanide (IV)
Ph—SO2—CH2—CN (IV)
in the presence of a solvent and optionally in the presence of a suitable reaction auxiliary, characterised in that the the 1st stage is carried out in the presence of a palladium catalyst and the 2nd stage in the presence of a 1.2- to 1.8-fold molar excess of alkali metal alcoholate or alkali metal hydroxide.
Type:
Grant
Filed:
July 1, 1993
Date of Patent:
March 20, 2001
Assignee:
Bayer Aktiengesellschaft
Inventors:
Peter C. Knüppel, Reinhard Lantzsch, Klaus Jelich, Peter Andres, Albrecht Marhold
Abstract: Selected sulfonylalkanoylamino hydroxyethylamine sulfonamide compounds are effective as retroviral protease inhibitors, and in particular as inhibitors of HIV protease. The present invention relates to such retroviral protease inhibitors and, more particularly, relates to selected novel compounds, composition and method for inhibiting retroviral proteases, such as human immunodeficiency virus (HIV) protease, prophylactically preventing retroviral infection or the spread of a retrovirus, and treatment of a retroviral infection.
Type:
Grant
Filed:
October 4, 1999
Date of Patent:
January 2, 2001
Assignee:
G. D. Searle & Company
Inventors:
Daniel P. Getman, Gary A. DeCrescenzo, John N. Freskos, Michael L. Vazquez, James A. Sikorski, Balekudru Devadas, Srinivasan Nagarajan, Joseph J. McDonald
Abstract: The present invention is directed to chiral intermediates in a synthetic route for preparing endothelium receptor antagonists of formulae (7B) and (7A).
Type:
Grant
Filed:
April 22, 1999
Date of Patent:
December 19, 2000
Assignee:
SmithKline Beecham Corporation
Inventors:
Robert John Mills, Conrad John Kowalski, Li-Jeng Ping, Kerry Joseph Gombatz
Abstract: The invention provides compounds, compositions and methods relating to novel arylsulfonanilide derivatives and their use as pharmacologically active agents. The compositions find particular use as pharmacological agents in the treatment of disease states, particularly cancer, psoriasis, vascular restenosis, infections, atherosclerosis and hypercholesterolemia, or as lead compounds for the development of such agents.
Abstract: The present invention relates to novel protein tyrosine phosphatase modulating compounds having the general structure shown in Formula (A1), to methods for their preparation, to compositions comprising the compounds, to their use for treatment of human and animal disorders, to their use for purification of proteins or glycoproteins, and to their use in diagnosis. The invention relates to modulation of the activity of molecules with phosphotyrosine recognition units, including protein tyrosine phosphatases (PTPases) and proteins with Src-homology-2 domains, in in vitro systems, microorganism, eukaryoic cells, whole animals and human being. R' and R" are independently selected from the group consisting of hydrogen, halo, cyano, nitro, trihalomethyl, alkyl, arylalkyl. R'" is selected from the group consisting of hydrogen, alkyl, substituted alkyl, aryl, arylalkyl. X is aryl. Y is selected from hydrogen or ##STR1## wherein (*) indicates a potential point of attachment to X.
Abstract: Selected bis-amino acid hydroxyethylamino sulfonamide compounds are effective as retroviral protease inhibitors, and in particular as inhibitors of HIV protease. The present invention relates to such retroviral protease inhibitors and, more particularly, relates to selected novel compounds, composition and method for inhibiting retroviral proteases, such as human immunodeficiency virus (HIV) protease, prophylactically preventing retroviral infection or the spread of a retrovirus, and treatment of a retroviral infection.
Type:
Grant
Filed:
January 21, 1998
Date of Patent:
November 7, 2000
Assignee:
G.D. Searle & Co.
Inventors:
Daniel P. Getman, Gary A. Decrescenzo, John N. Freskos, Michael L. Vazquez, James A. Sikorski, Belekudru Devadas, Srinivasan RAJ Nagarajan, David L. Brown, Joseph J. McDonald
Abstract: The present invention provides a method for the preparation of triarylmethyl protecting group reagents. The reagents are prepared from reaction effluent from the cleavage step of oligonucleotide synthetic regimes.
Abstract: The present invention is directed to a synthetic route for preparing endothelium receptor antagonists of formulae (7B) and (7A) and to the chiral intermediates ##STR1##
Type:
Grant
Filed:
May 8, 1998
Date of Patent:
June 27, 2000
Assignee:
SmithKline Beecham Corporation
Inventors:
Robert John Mills, Conrad John Kowalski, Li-Jeng Ping, Kerry Joseph Gombatz
Abstract: Disclosed are novel .alpha.-aryl-N-alkylnitrone compounds and pharmaceutical compositions containing such compounds. The disclosed compositions are useful as therapeutics for preventing and/or treating neurodegenerative, autoimmune and inflammatory conditions in mammals and as analytical reagents for detecting free radicals.
Type:
Grant
Filed:
October 15, 1998
Date of Patent:
April 4, 2000
Assignee:
Centaur Pharmaceuticals, Inc.
Inventors:
Judith A. Kelleher, Kirk R. Maples, Alina Dykman, Yong-Kang Zhang, Allan L. Wilcox, Julian Levell
Abstract: This invention relates to derivatives of furan and thiophene, their composition, process of making and method of use as endothelin receptor antagonists.
Type:
Grant
Filed:
February 2, 1998
Date of Patent:
January 25, 2000
Assignee:
SmithKline Beecham Corporation
Inventors:
John Duncan Elliott, Aiming Gao, Jia-Ning Xiang
Abstract: Selected sulfonylalkanoylamino hydroxyethylamine sulfonamide compounds are effective as retroviral protease inhibitors, and in particular as inhibitors of HIV protease. The present invention relates to such retroviral protease inhibitors and, more particularly, relates to selected novel compounds, composition and method for inhibiting retroviral proteases, such as human immunodeficiency virus (HIV) protease, prophylactically preventing retroviral infection or the spread of a retrovirus, and treatment of a retroviral infection.
Type:
Grant
Filed:
December 19, 1997
Date of Patent:
November 16, 1999
Assignee:
G.D. Searle & Co.
Inventors:
Daniel P Getman, Gary A. Decrescenzo, John N. Freskos, Michael L. Vazquez, James A. Sikorski, Balekudru Devadas, Srinivasan Nagarajan, Joseph J. McDonald
Abstract: Process for isolation of 1-(3,4-methylenedioxy-phenyl)-1E-tetradecene from Piper longum. Processes for synthesis of 1-(3,4-methylenedioxy-phenyl)-1E-tetradecene; its stereoisomers and analogues are disclosed. The compounds isolated and synthesized according to this invention have immunomodulatory properties and can be used to treat tumors and infections.
Type:
Grant
Filed:
May 29, 1997
Date of Patent:
October 5, 1999
Assignee:
National Institute of Immunology
Inventors:
Shakti N. Upadhyay, Ram A. Vishwakarma, Sabari Ghosal, Supriya Shukla, Chanda Bose, Anita Kamra
Abstract: The present invention relates to compounds that are inhibitors of interleukin-1.beta. converting enzyme that have the Formula II ##STR1## This invention also relates to a method of treatment of stroke, inflammatory diseases, septic shock, reperfusion injury, Alzheimer's disease, shigellosis, and to a pharmaceutically acceptable composition that contains a compound that is an inhibitor of interleukin-1.beta. converting enzyme.
Inventors:
Hamish John Allen, Kenneth Dale Brady, Bradley William Caprathe, Paul Galatsis, John Lodge Gilmore, Sheryl Jeanne Hays, Robert Vincent Talanian, Nigel Walker, Joseph Scott Warmus
Abstract: Disclosed herein are substituted vinylurea derivatives represented by the following general formula (1): ##STR1## wherein R.sup.1 and R.sup.3 are independently a phenyl group which may be substituted, R.sup.2 is a phenyl group which may be substituted, or a cycloalkyl group, and wave lines mean that the bonding state may be either E or Z, with the proviso that the cases where R.sup.1, R.sup.2 and R.sup.3 are unsubstituted phenyl groups, and where R.sup.1 and R.sup.2 are unsubstituted phenyl groups and R.sup.3 is a 4-ethoxyphenyl group are excluded, or salt thereof, and medicines comprising such a derivative as an active ingredient as well as a method of preventing and treating arteriosclerosis with such a medicine. The derivatives or salts thereof selectively and strongly inhibit ACAT in macrophages and are hence useful as prophylactic and therapeutic agents for arteriosclerosis.
Type:
Grant
Filed:
July 24, 1997
Date of Patent:
February 2, 1999
Assignee:
SS Pharmaceutical Co., Ltd.
Inventors:
Yoshihiko Kanamaru, Hiroyuki Hirota, Akihiro Shibata, Teruo Komoto, Hiroyuki Naito, Koichi Tachibana, Mari Ohtsuka, Fumio Ishii, Susumu Sato
Abstract: The present invention relates to the derivatives of formula: ##STR1## and to their use in therapeutics, especially as drugs with anti-inflammatory and analgesic properties.
Abstract: Compounds of the formula ##STR1## wherein the variables are defined as in the specification, are capable of lowering introaocular pressure in the eye of a mammal.
Abstract: Disclosed are novel pancratistatins and methods for their total asymmetric synthesis. In particular embodiments, processes for the total asymmetric synthesis of (+)-pancratistatin, (-)-pancratistatin, (+)-7-deoxypancratistatin, (-)-7-deoxypancratistatin, truncated pancratistatins, and related derivatives are provided.
Type:
Grant
Filed:
November 1, 1995
Date of Patent:
July 7, 1998
Assignee:
University of Florida
Inventors:
Tomas Hudkicky, Kurt Konigsberger, Sherita D. McLamore, Rakesh Maurya
Abstract: Novel carbocyclic compounds are described. The compounds generally comprise an acidic group, a basic group, a substituted amino or N-acyl and a group having an optionally hydroxylated alkane moiety. Pharmaceutical compositions comprising the inhibitors of the invention are also described. Methods of inhibiting neuraminidase in samples suspected of containing neuraminidase are also described. Antigenic materials, polymers, antibodies, conjugates of the compounds of the invention with labels, and assay methods for detecting neuraminidase activity are also described.
Type:
Grant
Filed:
December 27, 1996
Date of Patent:
June 9, 1998
Assignee:
Gilead Sciences, Inc.
Inventors:
Norbert W. Bischofberger, Choung U. Kim, Willard Lew, Hongtao Liu, Matthew A. Williams
Abstract: An economical process for producing .alpha.-L-aspartyldipeptide amide derivatives useful as sweeteners, by using amino protecting groups which can be removed by hydrolysis under acidic conditions, resulting in conversion of a .beta.-carboxyl acid ester to a carboxylic acid.
Abstract: Nonlinear optical compounds which contain a heteroaromatic ring and may further comprise a tricyanovinyl group attached to the heteroaromatic ring.
Type:
Grant
Filed:
January 18, 1995
Date of Patent:
February 17, 1998
Assignee:
Enichem S.p.A.
Inventors:
Kevin J. Drost, Pushkara Rao Varanasi, Kwan-Yue Alex Jen, Michael Anthony Drzewinski
Abstract: The invention concerns tachykinin antagonists. The compounds are nonpeptides which have utility in treating disorders mediated by tachykinins. Such disorders are respiratory, inflammatory, gastrointestinal, ophthalmic, allergies, pain, vascular, diseases of the central nervous system, and migraine. Methods of preparing compounds and novel intermediates are also included.The compounds are expected to be especially useful in asthma and rheumatoid arthritis.
Type:
Grant
Filed:
October 8, 1996
Date of Patent:
February 10, 1998
Assignee:
Warner-Lambert Company
Inventors:
David Christopher Horwell, William Howson, Martyn Clive Pritchard, Edward Roberts, David Charles Rees
Abstract: Selected sulfonylalkanoylamino hydroxyethylamine sulfonamide compounds are effective as retroviral protease inhibitors, and in particular as inhibitors of HIV protease. The present invention relates to such retroviral protease inhibitors and, more particularly, relates to selected novel compounds, composition and method for inhibiting retroviral proteases, such as human immunodeficiency virus (HIV) protease, prophylactically preventing retroviral infection or the spread of a retrovirus, and treatment of a retroviral infection.
Type:
Grant
Filed:
June 7, 1995
Date of Patent:
January 6, 1998
Assignee:
G.D. Searle & Co.
Inventors:
Daniel P. Getman, Gary A. DeCrescenzo, John N. Freskos, Michael L. Vazquez, James A. Sikorski, Balekudru Devadas, Srinivasan Nagarajan, Joseph J. McDonald
Abstract: Inks, particularly inks for ink jet printing, contain at least one compound of the formula I ##STR1## as a stabilizer. The symbols R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.3 ' and R.sub.4 ' are as defined in claim 1. The compounds are in part novel and are suitable for use as light stabilizers for organic materials.
Abstract: The present invention relates to the carbocyclic diarylmethylene derivatives of formula (I): ##STR1## and to their use in therapeutics, especially as drugs with anti-inflammatory and analgesic properties.
Type:
Grant
Filed:
October 7, 1996
Date of Patent:
November 11, 1997
Assignee:
Laboratoires UPSA
Inventors:
Eric Nicolai, Michele Launay, Dominique Potin, Jean-Marie Teulon
Abstract: According to the invention, a new process for the preparation of fluorine-substituted aminobenzodioxoles and -benzodioxanes of the formula (I) ##STR1## in which n represents an integer 1 or 2, has been found, in which fluorine-substituted nitro-halogeno-benzodioxoles and -benzodioxanes, which are likewise new, are hydrogenated. The novel intermediates are obtained from fluorine-substituted benzodioxoles and benzodioxanes by halogenation and subsequent nitration. The amino compounds are important starting materials for highly active biocides.
Abstract: Phenoxyphenylacetic acids and derivatives of the general structural formula I ##STR1## have endothelin antagonist activity and are useful in treating cardiovascular disorders, such as hypertension, postischemic renal failure, vasospasm, cerebral and cardiac ischemia, myocardial infarction, endotoxic shock, benign prostatic hyperplasia, inflammatory diseases including Raynaud's disease and asthma.
Type:
Grant
Filed:
October 18, 1996
Date of Patent:
September 16, 1997
Assignee:
Merck & Co. Inc.
Inventors:
Scott W. Bagley, Theodore P. Broten, Prasun K. Chakravarty, Daljit S. Dhanoa, Kenneth J. Fitch, William J. Greenlee, Nancy Jo Kevin, Gerard R. Kieczykowski, Douglas J. Pettibone, James R. Tata, Ralph A. Rivero, Thomas F. Walsh, David L. Williams, Jr., Jay M. Matthews, Richard B. Toupence
Abstract: 2,2-Difluorobenzo[1.3]dioxole-carbaldehydes are prepared in a particularly advantageous manner if methylbenzo[1.3]dioxoles are chlorinated, the resulting dichloromethyl-2,2-dichlorobenzo[1.3]dioxole is fluorinated with hydrogen fluoride and the dichloromethyl-2,2-difluorobenzo[1.3]dioxole obtained by this procedure is reacted with a carboxylic acid.
Abstract: Methods of producing carboxylic acid ester derivatives of formulae (I) and (II), which are useful, for instance, as intermediates for producing an anti-hypercholesterolemic agent having an inhibitory effect on HMG-CoA Reductase: ##STR1## wherein R.sup.1 and R.sup.2 are independently a protective group for hydroxyl group, or R.sup.1 and R.sup.2 integrally constitute a protective group for hydroxyl groups; R.sup.3 is an alkyl group, or an aryl group; and R.sup.4 is a substituted aryl group, a substituted heterocyclic group, a substituted vinyl group, or a substituted cycloalkenyl group; and ##STR2## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are respectively the same as defined in the above formula (I), are disclosed. In addition, intermediates for use in these methods of producing the carboxylic acid ester derivatives are disclosed.
Abstract: This invention provides certain sulfonamide derivatives, their pharmaceutical formulations, and their use in the treatment of susceptible neoplasms in mammals.
Type:
Grant
Filed:
November 21, 1994
Date of Patent:
January 14, 1997
Assignee:
Eli Lilly and Company
Inventors:
Richard W. Harper, J. Jeffry Howbert, Gerald A. Poore, Brent J. Rieder, Eddie V. P. Tao, James A. Aikins
Abstract: Phenoxyphenylacetic acids and derivatives of the general structural formula I ##STR1## have endothelin antagonist activity and are useful in treating cardiovascular disorders, such as hypertension, postischemic renal failure, vasospasm, cerebral and cardiac ischemia, myocardial infarction, endotoxic shock, benign prostatic hyperplasia, inflammatory diseases including Raynaud's disease and asthma.
Type:
Grant
Filed:
August 22, 1994
Date of Patent:
October 15, 1996
Assignee:
Merck & Co., Inc.
Inventors:
Scott W. Bagley, Theodore P. Broten, Prasun K. Chakravarty, Daljit S. Dhanoa, Kenneth J. Fitch, William J. Greenlee, Nancy J. Kevin, Douglas J. Pettibone, Ralph A. Rivero, Thomas F. Walsh, David L. Williams, Jr., Richard B. Toupence, Jay M. Matthews
Abstract: According to the invention, a new process for the preparation of fluorine-substituted aminobenzodioxoles and -benzodioxanes of the formula (I) ##STR1## in which n represents an integer 1 or 2, has been found, in which fluorine-substituted nitro-halogeno-benzodioxoles and -benzodioxanes, which are likewise new, are hydrogenated. The novel intermediates are obtained from fluorine-substituted benzodioxoles and benzodioxanes by halogenation and subsequent nitration. The amino compounds are important starting materials for highly active biocides.