1-thia-4-aza-bicyclo(3.2.0)hep-tane (including Unsaturated; E.g., Penam, Etc.) Patents (Class 540/304)
  • Publication number: 20150072961
    Abstract: The invention provides compositions of novel high penetration compositions (HPC) or high penetration prodrugs (HPP) for treatment of pulmonary conditions (e.g. asthma). The HPCs/HPPs are capable of being converted to parent active drugs or drug metabolites after crossing the biological barrier and thus can render treatments for the conditions that the parent drugs or metabolites can. Additionally, the HPPs are capable of reaching areas that parent drugs may not be able to access or to render a sufficient concentration at the target areas and therefore render novel treatments. The HPCs/HPPs can be administered to a subject through various administration routes, e.g., locally delivered to an action site of a condition with a high concentration or systematically administered to a biological subject and enter the general circulation with a faster rate.
    Type: Application
    Filed: November 14, 2014
    Publication date: March 12, 2015
    Inventors: Chongxi YU, Lina XU
  • Patent number: 8865686
    Abstract: The instant invention is directed towards tetracycline compositions, and methods of inhibiting Tdp1 activity, and methods of treating Tdp1-associated disorders.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: October 21, 2014
    Assignee: The United States of America, as Represented by the Secretary, Dept. of Health and Human Services
    Inventors: Yves Pommier, Laurent Thibaut, Christophe Marchand
  • Patent number: 8685957
    Abstract: This disclosure provides compositions containing solid forms of tazobactam arginine, and methods of manufacturing and using these compositions.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: April 1, 2014
    Assignee: Cubist Pharmaceuticals, Inc.
    Inventors: Jan-Ji Lai, Jian-Qiao Gu, Pradip M. Pathare, Valdas Jurkauskas, Joseph Terracciano, Nicole Miller Damour
  • Patent number: 8476425
    Abstract: This disclosure provides compositions containing solid forms of tazobactam arginine, and methods of manufacturing and using these compositions.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: July 2, 2013
    Assignee: Cubist Pharmaceuticals, Inc.
    Inventors: Jan-Ji Lai, Jian-Qiao Gu, Pradip M. Pathare, Valdas Jurkauskas, Joseph Terracciano, Nicole Miller Damour
  • Publication number: 20120065367
    Abstract: Provided are: a radiolabeled drug, which is efficiently accumulated in a target and has high in vivo stability; and diagnosis and treatment each using the radiolabeled drug. Specifically provided are: a radiolabeled drug showing increased accumulation in a target site, which comprises a complex composed of a ligand that is bound to a compound capable of binding to a target molecule and forms a polycoordinated complex with a metal (e.g., technetium or rhenium) and a radionuclide of the metal; the radiolabeled drug for diagnosis or treatment; a ligand for preparing the radiolabeled drug; a kit that comprises a drug comprising the ligand and a drug comprising a radionuclide of a metal, as separate package units; and a method of increasing accumulation of a radiolabeled drug in a target site, comprising using the above-mentioned radiolabeled drug.
    Type: Application
    Filed: April 28, 2009
    Publication date: March 15, 2012
    Applicant: NATIONAL UNIVERSITY CORPORATION CHIBA UNIVERSITY
    Inventors: Yasushi Arano, Tomoya Uehara
  • Publication number: 20110288063
    Abstract: A compound of formula (I) or formula (Ia) Wherein R1, Ra, R2, X, R3, Y1, Y2, A, B and C are as defined herein. Also, pharmaceutical compositions comprising such compounds and excipients, methods of treating bacterial infections comprising administering such compounds, methods for making such compounds and hydrates of such compounds.
    Type: Application
    Filed: May 19, 2011
    Publication date: November 24, 2011
    Applicant: Naeja Pharmaceutical Inc.
    Inventors: Samarendra N. MAITI, Rong Ling, Judy Yip, Chuanjun Gao, Dai Nguyen, Biswajeet Ganguli, Hong Liang, Jehangir Khan, Andhe V. Narender Reddy
  • Publication number: 20100016208
    Abstract: Photoactivatable antimicrobial compounds and methods for the use thereof in the treatment of infections are provided.
    Type: Application
    Filed: November 15, 2006
    Publication date: January 21, 2010
    Applicant: THE GENERAL HOSPITAL CORPORATION
    Inventors: Tayyaba Hasan, Gerald J. Nau
  • Publication number: 20090186865
    Abstract: An improved process for the production of lyophilized Piperacillin alone or in combination with Tazobactam with improved pH adjustment, by degassing the solution of products to a controlled low carbon dioxide content prior to lyophilization.
    Type: Application
    Filed: December 1, 2006
    Publication date: July 23, 2009
    Applicant: SANDOZ AG
    Inventors: José Diago, Joan Cabre, Josep Salvador, Pere Lloveras, Irina Kosilek, Norbert Atzl
  • Publication number: 20090176747
    Abstract: The instant invention is directed towards tetracycline compositions, and methods of inhibiting Tdp1 activity, and methods of treating Tdp1-associated disorders.
    Type: Application
    Filed: September 29, 2008
    Publication date: July 9, 2009
    Applicant: National Institutes of Health
    Inventors: Yves Pommier, Laurent Thibaut, Christophe Marchand
  • Publication number: 20090017003
    Abstract: The present invention relates to novel thiosulfonates derivatives. The present invention also provides methods for preventing, treating and/or reducing inflammation-associated diseases in the cardiovascular, connective tissue, pulmonary, gastrointestinal, respiratory, urogenital, nervous or cutaneous systems as well as infective and tumoral diseases employing said compounds.
    Type: Application
    Filed: March 1, 2007
    Publication date: January 15, 2009
    Applicant: SULFIDRIS S.R.L.
    Inventors: Piero Del Soldato, Giancarlo Santus, Anna Sparatore
  • Publication number: 20040241173
    Abstract: A fullerene-antibiotic conjugate including at least one antibiotic molecule per fullerene moiety. The fullerene may comprise C60 and the antibiotic may comprise vancomycin or may be selected from the group consisting of penicillins, cephalosporins, quinolones, fluoroquinolones, macrolides, lincosamines, carbepenems, conobactams, aminoglycosides, glycopeptides, tetracyclines, sulfonamides, rifampin, oxazolidonones, and streptogramins. The conjugate preferably includes at least two and more preferably at least three antibiotic molecules per C60 center. A method for making a fullerene(C60)-antibiotic conjugate, comprises: synthesizing a linker precursor (I); reacting the linker precursor (I) with C60 via a Bingel-reaction, to produce a fullerene-linker conjugate (II); hydrolyzing the fullerene-linker conjugate (II), resulting in a desired derivative of C60 (III); and reacting the derivative (III) with a desired antibiotic to produce a fullerene-antibiotic conjugate (IV).
    Type: Application
    Filed: February 11, 2004
    Publication date: December 2, 2004
    Applicant: William Marsh Rice University
    Inventors: Lon J. Wilson, Andrey L. Mirakyan, Matthew P. Cubbage
  • Publication number: 20040138196
    Abstract: The present invention is based on the discovery that certain fermentation products of the marine actinomycete strains CNB392 and CNB476 are effective inhibitors of hyperproliferative mammalian cells. The CNB392 and CNB476 strains lie within the family Micromonosporaceae, and the generic epithet Salinospora has been proposed for this obligate marine group. The reaction products produced by this strain are classified as salinosporamides, and are particularly advantageous in treating neoplastic disorders due to their low molecular weight, low IC50 values, high pharmaceutical potency, and selectivity for cancer cells over fungi.
    Type: Application
    Filed: June 20, 2003
    Publication date: July 15, 2004
    Inventors: William Fenical, Paul Jensen, Tracy Mincer, Robert H.R. Feling
  • Publication number: 20040132707
    Abstract: Catacholate beta-lactam conjugates, methods for producing these compounds, and compositions containing these compounds useful as siderophores or for treatment of bacterial infections are provided.
    Type: Application
    Filed: August 29, 2003
    Publication date: July 8, 2004
    Applicant: Gruenenthal GmbH
    Inventors: Lothar Heinisch, Steffen Wittmann, Ina Scherlitz-Hofmann, Thomas Stoiber, Albrecht Berg, Ute Moellmann
  • Patent number: 6232305
    Abstract: The present invention provides substituted amino bicyclic-&bgr;-lactam penam derivatives and substituted amino bicyclic-&bgr;-lactam cepham derivatives and their diastereoisomers of formula I, as well as compositions, methods of making, and methods of using, which exhibit excellent cysteine protease inhibitory activity and which may be used for treatment of different diseases such as cancer (including cancer metastasis), osteoporosis, rheumatoid arthritis.
    Type: Grant
    Filed: January 22, 1998
    Date of Patent: May 15, 2001
    Assignee: Naeja Pharmaceutical Inc.
    Inventors: Rajeshwar Singh, Nian Zhou, Deqi Guo, Ronald G. Micetich
  • Patent number: 6127355
    Abstract: The present invention is directed compositions of the formula: ##STR1## wherein: D is a residue of a biologically active moiety;X is an electron withdrawing group;Y and Y' are independently O or S;(n) is zero (0) or a positive integer, preferably from 1 to about 12;R.sub.1 and R.sub.2 are independently selected from the group consisting of H, C.sub.1-6 alkyls, aryls, substituted aryls, aralkyls, heteroalkyls, substituted heteroalkyls and substituted C.sub.1-6 alkyls;R.sub.3 is a substantially non-antigenic polymer, C.sub.1-12 straight or branched alkyl or substituted alkyl, C.sub.5-8 cycloalkyl or substituted cycloalkyl, carboxyalkyl, carboalkoxy alkyl, dialkylaminoalkyl, phenylalkyl, phenylaryl or ##STR2## R.sub.4 and R.sub.5 are independently selected from the group consisting of H, C.sub.1-6 alkyls, aryls, substituted aryls, aralkyls, heteroalkyls, substituted heteroalkyls, and substituted C.sub.1-6 alkyls or jointly form a cyclic C.sub.5 -C.sub.7 ring.
    Type: Grant
    Filed: March 26, 1999
    Date of Patent: October 3, 2000
    Assignee: Enzon, Inc.
    Inventors: Richard B. Greenwald, Annapurna Pendri, Hong Zhao
  • Patent number: 6107481
    Abstract: A process to prepare the E isomer of a 3-substituted (6R,7R)-7-phenyl-acetamido-ceph-3-em-4-carboxylic acid from a mixture of the E and Z-isomer of either the corresponding tert-butyl or the corresponding 4-methoxybenzyl ester of a 3-substituted (6R,7R)-7-phenylacetamido-ceph-3-em-4-carboxylate, characterized by the application of a compound selected from the group titanium tetrachloride, tin tetrachloride and tellurium tetrachloride.
    Type: Grant
    Filed: July 13, 1999
    Date of Patent: August 22, 2000
    Assignee: DSM N.V.
    Inventors: Erik De Vroom, Thomas Van Der Does
  • Patent number: 6015808
    Abstract: Pharmaceutical compositions with heretofore unknown and enhanced physical, chemical, and biological properties are prepared by combining known biologically active parent compounds with oxo thia azabicyclo compounds, such as lactam and .beta.-lactam compounds, capable of rapidly transporting the parent compounds in undegraded form to their target sites of action. A process for combining the parent compound with .beta.-lactam compounds consists of dissolving the parent compound in a polar solvent, adding a .beta.-lactam compound, incubating the resulting mixture, followed by drying, and subjecting the remaining solid material to solvent washing or extraction to further purify the new pharmaceutical composition. The new pharmaceutical composition possesses the biological and therapeutic activity of the parent compound and the barrier penetrating characteristics of the .beta.
    Type: Grant
    Filed: August 22, 1995
    Date of Patent: January 18, 2000
    Inventors: Mandayam Jeersannidhi Thirumalachar, Mandayam Jeersannidhi Narasimhan, Jr.
  • Patent number: 5955458
    Abstract: New solvates of penicillin, in particular amoxycillin glycolate has been provided for together with a simple one-step process to prepare the same.
    Type: Grant
    Filed: March 26, 1998
    Date of Patent: September 21, 1999
    Assignee: Gist-Brocades, B.V.
    Inventor: Jagdish C. Kapur
  • Patent number: 5922861
    Abstract: An efficient process for de-esterification has been provided for by application of special tetrahalogenides. By applying this process a new compound, viz. cefesone, and especially the E-isomer thereof, has been prepared.
    Type: Grant
    Filed: April 1, 1998
    Date of Patent: July 13, 1999
    Assignee: Gist-Brocades B.V.
    Inventors: Erik De Vroom, Thomas Van Der Does
  • Patent number: 5880111
    Abstract: Novel chemotherapeutic agents having utility in treating infectious diseases such as periodontal disease, certain urinary tract infections, and infectious urinary tract stones, are obtained by combining chemically a diphosphonate compound with a therapeutic agent effective against the foregoing diseases.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: March 9, 1999
    Inventors: Dan Farcasiu, John F. Hartmann, Pal Herczegh, Ferenc J. Sztaricskai
  • Patent number: 5854227
    Abstract: Novel chemotherapeutic agents having utility in treating infectious diseases such as periodontal disease, certain urinary tract infections, infectious urinary tract stones, and bone cancer, are obtained by combining chemically a diphosphonate compound with a therapeutic agent effective against the foregoing diseases.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: December 29, 1998
    Inventors: John F. Hartmann, Dan Farcasiu
  • Patent number: 5821362
    Abstract: Method of desilylating a silylether compound by reacting a silylether compound of the general formula (I): ##STR1## or a salt thereof with an amine hydrogen fluoride salt or a pyridine hydrogen fluoride salt in an organic solvent to produce a compound of the general formula (IV): ##STR2## According to this method, silylether compounds that are labile under strong acidic or basic conditions can be desilylated efficiently using inexpensive reagents.
    Type: Grant
    Filed: December 27, 1995
    Date of Patent: October 13, 1998
    Assignee: Suntory Limited
    Inventors: Akira Kaneko, Tsutomu Kaku, Masaji Ishiguro, Takashi Nakatsuka
  • Patent number: 5801242
    Abstract: The present invention provides processes for making compounds of the structure(Q--L.sup.1)--L--(L.sup.2 --B)wherein(I) Q is a quinolone moiety;(II) B is a lactam moiety; and(III) L, L.sup.1, and L.sup.2 together comprise a linking moiety;comprising the steps of:(1) coupling a compound of Formula (III) with a lactam-containing compound to form an intermediate compound; and(2) cyclizing the intermediate by reaction with an organosilicon compound to give a compound of the formula (Q--L.sup.1)--L--(L.sup.2 --B).Preferably, the process additionally comprises a step prior to the coupling step, wherein protected forms of the compound of Formula (III) and the lactam compound are formed; and deprotection steps after the cyclization step, wherein the protecting groups are removed. Preferred antimicrobial compounds made by these processes are those where the beta-lactam moiety is a penem, a carbapenem, a cephem, or a carbacephem. Also preferred are those compounds where L.sup.1, L, and L.sup.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: September 1, 1998
    Assignee: The Procter & Gamble Company
    Inventors: Jared Lynn Randall, Jane Ellen Godlewski
  • Patent number: 5644053
    Abstract: The present invention discloses compounds having the formula ##STR1## wherein one of R.sup.1 and R.sup.2 is --COR.sup.4, --CN, --CH.sub.2 R.sup.5, halogen, --CH.dbd.CHR.sup.6 or Q and the other is hydrogen or lower alkyl or both R.sup.1 and R.sup.2 together form a .gamma.-lactam ring,R.sup.3 is hydrogen, lower alkyl, aryl-alkyl, allyl or a residue which is cleavable in vivo,R.sup.4 is hydrogen, lower alkyl, lower alkoxy, benzyloxy, amino, lower alkylamino or lower alkyl-lower alkoxyamino,R.sup.5 is hydroxy, --OCONHR.sup.7, --OCONH.sub.2 or a five- or six-membered hetero-aromatic ring which contains N,S and/or O and which is linked via a nitrogen atom,R.sup.6 is --CN or CHO,R.sup.7 is --COCH.sub.2 Cl,Q is a five- or six-membered hetero-aromatic ring which contains N, S and/or O andn is 0, 1 or 2,and the pharmaceutically compatible salts thereof.These compounds are good .beta.-lactamase inhibitors. They can be used for the prevention or treatment of bacterial infections, optionally together with a .beta.
    Type: Grant
    Filed: November 16, 1995
    Date of Patent: July 1, 1997
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Christian Hubschwerlen, Hans Richter, Jean-Luc Specklin
  • Patent number: 5637580
    Abstract: Compounds of structure: ##STR1## as well as their pharmaceutically-acceptable salts and biohydrolyzables esters, and hydrates thereof, are effective antiinfective agents, useful in treating and preventing infection.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 10, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Ronald E. White, Thomas P. Demuth, Jr.
  • Patent number: 5547667
    Abstract: Conjugates of general formula 1:[A--O--W--Z].sub.a --T 1wherein the moiety A--O-- is the residue of drug of formula A--O--H in which --O--H is a primary or secondary hydroxyl group; a is an integer of from 1 to 30; W is a group of general formula 2: ##STR1## wherein b is an integer of from 1 to 4, B represents a C.sub.1 -C.sub.3 alkylene group and R.sub.1 and R.sub.2 each independently represent hydrogen, halogen, alkyl, phenyl or substituted phenyl; Z is a spacer group and T is a carrier moiety.
    Type: Grant
    Filed: October 25, 1994
    Date of Patent: August 20, 1996
    Assignee: Farmitalia Carlo Erba S.r.l.
    Inventors: Francesco Angelucci, Laura Bersani, Michele Caruso, Marina Ripamonti, Daniela Ruggieri, Antonino Suarato
  • Patent number: 5474993
    Abstract: The present invention is related to compounds which inhibit pancreatic cholesterol esterase. The compounds have the formula: ##STR1## wherein R.sup.1 is H or C.sub.1-6 alkyl;R.sup.2 is H or C.sub.1-6 alkyl;R.sup.3 is H or C.sub.1-6 alkyl;X is CHR.sup.6, S or O;R.sup.6 is H or C.sub.1-6 alkyl;R.sup.4 is a hydrophobic moiety; and pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: June 14, 1994
    Date of Patent: December 12, 1995
    Assignee: Sterling Winthrop, Inc.
    Inventors: Byron Rubin, Kenneth C. Mattes, Terrence C. Mungal
  • Patent number: 5387578
    Abstract: Conjugate of general formula 1:[A--O--W-Z].sub.a -T 1wherein the moity A--O--is the residue of drug of formula A--O--H in which --O--H is a primary or secondary hydroxyl group; a is an integer of from 1 to 30; W is a group of general formula 2: ##STR1## wherein b is an integer of from 1 to 4, B represents a C.sub.1 -C.sub.3 alkylene group and R.sub.1 and R.sub.2 each independently represent hydrogen, halogen, alkyl, phenyl or substituted phenyl; Z is a spacer group and T is a carrier moiety.
    Type: Grant
    Filed: April 3, 1992
    Date of Patent: February 7, 1995
    Assignee: Farmitalia Carlo Erba S.r.l.
    Inventors: Francesco Angelucci, Laura Bersani, Michele Caruso, Marina Ripamonti, Daniela Ruggieri, Antonino Suarato
  • Patent number: 5300497
    Abstract: A penam derivative represented by the following general formula or a salt thereof: ##STR1## wherein R.sup.1 represents a hydrogen atom, an amino-protecting group or an acyl group; R.sup.2 represents a hydrogen atom or a lower alkyl group; R.sup.3 represents a hydrogen atom, a lower alkoxy group, a lower alkylthio group or a formamido group; R.sup.4 represents an protected or unprotected carboxyl group or a carboxylato group; R represents a group of the formula, --NHR.sup.5 or --NR.sup.5 R.sup.6 (in which R.sup.5 and R.sup.6, which may be the same or different, represent protected or unprotected hydroxyl groups, cyano groups, sulfo groups, or unsubstituted or substituted lower alkyl, aryl, acyl, carbamoyl, sulfamoyl, lower alkylsulfonyl or heterocyclic groups) or a group of the formula, --N.dbd.CR.sup.7 R.sup.8 (in which R.sup.7 and R.sup.
    Type: Grant
    Filed: October 7, 1992
    Date of Patent: April 5, 1994
    Assignee: Toyama Chemical Co., Ltd.
    Inventors: Hirokazu Ochiai, Yasuo Watanabe, Yoshiharu Murotani, Hirohiko Fukuda, Osamu Yoshino, Shinzaburo Minami, Toshio Hayashi, Kaishu Momonoi
  • Patent number: 5281703
    Abstract: The present invention provides methods of making compounds of the structure[Q-L.sup.1 ]-L-[L.sup.2 -B[wherein(I) Q is a quinolone moiety;(II) B is a beta-lactam moiety;(III) L, L.sup.1, and L.sup.2 together comprise a carbamate-containing linking moietycomprising the steps of:(1) Reacting a lactam compound of the formula B-L.sup.4 -H with phosgene to form an intermediate compound of the formula B--L.sup.4 --C(=O)--Cl, where L.sup.4 is oxygen; and(2) Coupling said intermediate compound with a quinolone compound of the formula Q-L.sup.3 -R.sup.44 ; wherein L.sup.3 is nitrogen; R.sup.44 is hydrogen, Si(R.sup.45).sub.3, or Sn(R.sup.45).sub.3 ; and R.sup.45 is lower alkyl.Preferably, the process additionally comprises steps prior to the reacting and coupling steps where esters of the lactam and quinolone compounds are made. Also preferably, the coupling step comprises adding a solution containing the quinolone compound to a solution containing the intermediate compound.
    Type: Grant
    Filed: May 7, 1993
    Date of Patent: January 25, 1994
    Assignee: Procter & Gamble Pharmaceuticals, Inc.
    Inventors: Ronald E. White, Thomas P. Demuth, Jr.
  • Patent number: 5185330
    Abstract: A penam derivative represented by the following general formula or a salt thereof: ##STR1## wherein R.sup.1 represents a hydrogen atom, an amino-protecting group or an acyl group; R.sup.2 represents a hydrogen atom or a lower alkyl group; R.sup.3 represents a hydrogen atom, a lower alkoxy group, a lower alkylthio group or a formamido group; R.sup.4 represents a protected or unprotected carboxy group or a craboxylato group; R represents a group of the formula, --NHR.sup.5 or --NR.sup.5 R.sup.6 (in which R.sup.5 and R.sup.6, which may be the same or different, represent protected or unprotected hydroxyl groups, cyano groups, sulfo groups, or unsubstituted or substituted lower alkyl, aryl, acyl, carbamoyl, sulfamoyl, lower alkylsulfonyl or heterocyclic groups) or a group of the formula, --N.dbd.CR.sup.7 R.sup.8 (in which R.sup.7 and R.sup.
    Type: Grant
    Filed: June 20, 1990
    Date of Patent: February 9, 1993
    Assignee: Toyama Chemical Co., Ltd.
    Inventors: Hirokazu Ochiai, Yasuo Watanabe, Yoshiharu Murotani, Hirohiko Fukuda, Osamu Yoshino, Shinzaburo Minami, Toshio Hayashi, Kaishu Momonoi
  • Patent number: 5132300
    Abstract: Novel beta lactam compounds having potent elastrase inhibition activity are disclosed. These compounds are characterized by the general structural formulae I, II, and III: ##STR1## These compounds are further characterized such that X and Y are each --S-- or --CH.sub.2 --, with at least one of X and Y being --S--, or alternatively, X is --SO-- or --SO.sub.2 -- and Y is --CH.sub.2 --; R.sup.1 is hydrogen, tri(lower alkyl)silyl, --COOR" or --CONHR"', wherein R" and R"' are each lower alkyl or phenyl(lower alkyl), and may be the same or different; R.sup.3 is hydrogen, lower alkyl or (lower alkyl)oxy; one of B and D is (lower alkyl)oxycarbonyl, (lower alkenyl)oxycarbonyl, allyloxycarbonyl or phenyl(lower alkyl)oxycarbonyl; and the other of B and D is hydrogen or lower alkyl.The compounds are useful as anti-inflammatory agents, particularly in the treatment of adult respiratory distress syndrome and rheumatoid arthritis.
    Type: Grant
    Filed: June 1, 1989
    Date of Patent: July 21, 1992
    Assignee: Pfizer Inc.
    Inventors: Robert A. Volkmann, V. John Jasys, Michael S. Kellogg
  • Patent number: 5053502
    Abstract: There is disclosed a compound represented by the formula ##STR1## where P is a hydroxy protecting group.
    Type: Grant
    Filed: May 15, 1990
    Date of Patent: October 1, 1991
    Assignee: Schering Corporation
    Inventors: Donald Hou, Yee-Shing Wong, Dinesh Gala, Martin Steinman
  • Patent number: 5008257
    Abstract: The subject compounds, which are adapted for the site-specific/sustained delivery of centrally acting drug species to the brain, are:(a) compounds of the formula[D-DHC] (I)wherein [D] is a centrally acting drug species, and [DHC] is the reduced, biooxidizable, blood-brain barrier penetrating lipoidal form of a dihydropyridine.revreaction.pyridinium salt redox carrier, with the proviso that when [DHC] is ##STR1## wherein R is a lower alkyl or benzyl and [D] is a drug species containing a single NH.sub.2 or OH functional group, the single OH group when present being a primary or secondary OH group, said drug species being linked directly through said NH.sub.
    Type: Grant
    Filed: January 11, 1989
    Date of Patent: April 16, 1991
    Assignee: University of Florida
    Inventor: Nicholas S. Bodor
  • Patent number: 4933444
    Abstract: Disclosed is a process for preparing 2.beta.-substituted-methylpenicillin derivative of the formula ##STR1## wherein R is H or carboxyl protecting group, R.sub.1 is H or halo, R.sub.2 is H, lower alkyl, lower alkoxy, halogen, azido, lower alkylthio, phthalimide or a group --NHR.sub.3 (wherein R.sub.3 is H or acyl), and --N Y is an optionally substituted monocyclic or bicyclic heterocyclic group having 1 to 4 nitrogen atoms in the ring structure, the process comprising reacting a compound of the formula ##STR2## wherein X is Cl or Br, and R, R.sub.1 and R.sub.2 are as defined above with a heterocyclic compound of the formula ##STR3## wherein --N Y is as defined above.
    Type: Grant
    Filed: June 26, 1989
    Date of Patent: June 12, 1990
    Assignees: Taiho Pharmaceutical Co., Ltd., Otsuka Kagaku Kabushiki Kaisha
    Inventors: Sigeru Torii, Hideo Tanaka, Motoaki Tanaka, Shozo Yamada, Akira Nakai, Hisashi Ohbayashi
  • Patent number: 4877783
    Abstract: .beta.-Lactam antibiotics having an .alpha.-formamido substituent on the carbon atom adjacent to the carbonyl group of the .beta.-lactam ring and in particular bicyclic compounds having the partial structure: ##STR1## Intermediates and processes for the preparation of the compounds are further disclosed.
    Type: Grant
    Filed: January 24, 1985
    Date of Patent: October 31, 1989
    Assignee: Beecham Group p.l.c.
    Inventor: Peter H. Milner
  • Patent number: 4861768
    Abstract: Disclosed is a penicillin derivative of the formula: ##STR1## wherein n is an integer of 0, 1 or 2; Y is a cyano group, a lower acyl group, a mono- or di-lower alkylthiocarbamoyl group, ##STR2## wherein R.sub.1 is a hydrogen atom, a lower alkyl group, a phenyl group, a group --(CH.sub.2).sub.m --OR.sub.2 or --(CH.sub.2).sub.m COOR.sub.2 (m is an integer of 1 to 6 and R.sub.2 is a hydrogen atom or a penicillin carboxyl ester-forming group which is commonly used for penicillin derivatives) or a phenyl group substituted by at least one member selected from the class consisting of lower alkyl group, halogen atom and lower alkoxy group; and R is a hydrogen atom or a penicillin carboxyl ester-forming group, or a salt thereof. They are useful as .beta.-lactamase inhibitors.
    Type: Grant
    Filed: February 18, 1987
    Date of Patent: August 29, 1989
    Assignee: Taiho Pharmaceutical Company, Limited
    Inventors: Sigeru Torii, Hideo Tanaka, Motoaki Tanaka, Shozo Yamada, Akira Nakai, Hisashi Ohbayashi
  • Patent number: 4767853
    Abstract: A multi-step stereospecific process for preparing (3S,4R,5R)-1-(allyloxycarbonyl)-methyl-3-(1-hydroxyethyl)-4-beta-naphthoxy thiocarbonylthio-2-azetidinones, stereoisomers thereof or hydroxy protected analogs thereof from anhydropenicillin. The azetidinones are intermediates useful for producing penems which are a known group of antibacterial compounds. The process involves protecting the hydroxy group of anhydropenicillin with a readily removable hydroxy protecting group, then converting the resulting compound by ozonolysis followed by reaction with a trialklyl phosphite, then hydrolysis to remove the methylidene group at the 2-position of anhydropenicillin. The resulting compound is converted to the unprotected 4-beta-naphthoxy thiocarbonylthio derivative by reaction with allyl alcohol and HCl followed by reaction with O-2-napththalenylcarbonochloridothioate, or to the protected compound by reaction with silver imidazolate and allyl alcohol followed by reaction with O-2-naphthalenylcarbonochloridothioate.
    Type: Grant
    Filed: July 21, 1986
    Date of Patent: August 30, 1988
    Assignee: Schering Corporation
    Inventor: Donald Hou
  • Patent number: 4675186
    Abstract: 6-(1-Acyl-1-hydroxymethyl)penicillanic acid derivatives are useful as antibacterials and/or beta-lactamase inhibitors.
    Type: Grant
    Filed: March 11, 1986
    Date of Patent: June 23, 1987
    Assignee: Pfizer Inc.
    Inventor: Lawrence A. Reed, III, deceased
  • Patent number: 4668514
    Abstract: This invention provides a penicillin derivative of the formula ##STR1## wherein R.sub.1 and R.sub.2 are the same or different and represent hydrogen, C.sub.1-6 alkyl, C.sub.1-6 hydroxyalkyl, C.sub.3-9 acyloxyalkyl, C.sub.8-13 benzyloxyalkyl, C.sub.2-7 alkoxyalkyl, C.sub.2-7 alkoxycarbonyl, C.sub.3-8 alkenyloxycarbonyl, C.sub.3-8 alkynyloxycarbonyl, phenyl, amino, cyano, formyl, trifluoromethyl, C.sub.2-6 acyl, carbamoyl, C.sub.2-7 alkylcarbamoyl, benzyloxycarbonylamino, C.sub.2-7 alkoxycarbonylamino; and R.sub.3 is hydrogen, a group for forming a pharmaceutically acceptable salt, or a penicillin carboxyl protecting group, with the proviso that both of R.sub.1 and R.sub.2 are not hydrogen or C.sub.2-7 alkoxycarbonyl at the same time and that when one of R.sub.1 and R.sub.2 is hydrogen, the other is not C.sub.2-7 alkoxycarbonyl, or a pharmaceutically acceptable acid addition salt, process for preparing the derivative, and a pharmaceutical composition containing the derivative.
    Type: Grant
    Filed: October 5, 1984
    Date of Patent: May 26, 1987
    Assignee: Taiho Pharmaceutical Company Limited
    Inventors: Ronald G. Micetich, Shigeru Yamabe, Motoaki Tanaka, Tomio Yamazaki, Naobumi Ishida, Makoto Kajitani
  • Patent number: 4663451
    Abstract: Described is a novel process for the preparation of penams and penems useful as antibacterial agents, which comprises the reaction of an appropriate 4-substituted-azetidin-2-one with a base, followed by reaction of the thereby formed penam compound with an oxidating agent and a organic or inorganic base.Also described are novel penam compounds useful as antibacterials which are prepared by the described process.
    Type: Grant
    Filed: August 29, 1984
    Date of Patent: May 5, 1987
    Assignee: Farmitalia Carlo Erba S.p.A.
    Inventors: Stephen Hanessian, Angelo Bedeschi
  • Patent number: 4654331
    Abstract: The (5-R-2-oxo-1,3-dioxolen-4-yl)methyl moiety: ##STR1## wherein R is loweralkyl of 1-6 carbon atoms, especially methyl or t-butyl; when utilized as an ester on a pharmaceutical having a carboxylic acid functionality, enhances oral absorption of the pharmaceutical. This effect is applicable to a broad range of pharmaceutically active substances, including antibiotics, and antihypertensives as well as other classes of therapeutic agents.
    Type: Grant
    Filed: August 23, 1984
    Date of Patent: March 31, 1987
    Assignee: Merck & Co., Inc.
    Inventor: Burton G. Christensen
  • Patent number: 4639335
    Abstract: A novel stereocontrolled process is disclosed for converting 6-aminopenicillanic acid to an optically active azetidinone of the formula ##STR1## wherein R" is a hydroxy-protecting group by use of a 6,6-dihaloanhydropenicillin or 6,6-bis(phenylselenyl)anhydropenicillin intermediate.
    Type: Grant
    Filed: January 13, 1986
    Date of Patent: January 27, 1987
    Assignee: Bristol-Myers Company
    Inventors: Alain Martel, Jean-Paul Daris