Additional Nitrogen Containing Patents (Class 536/7.4)
  • Patent number: 7265094
    Abstract: The present invention discloses compounds of formula I, II, III, or IV, or a racemate, enantiomer, regioisomer, salt, ester or prodrug thereof: which exhibit antibacterial properties. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject in need of antibiotic treatment. The invention also relates to methods of treating a bacterial infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention. The invention further includes process by which to make the compounds of the present invention.
    Type: Grant
    Filed: January 7, 2005
    Date of Patent: September 4, 2007
    Assignee: Enanta Pharmaceuticals, Inc.
    Inventors: Yao-Ling Qiu, Deqiang Niu, Zhe Wang, Ly Tam Phan, Yat Sun Or
  • Patent number: 7262172
    Abstract: The invention relates to novel semi-synthetic macrolides of formula (I) having antibacterial activity.
    Type: Grant
    Filed: October 19, 2001
    Date of Patent: August 28, 2007
    Assignees: Glaxo Group Limited, GlaxoSmithKline istrazivacki center Zagret d.o.o.
    Inventors: Suleman Alihodzic, Andrea Berdik, Francesca Cardullo, Antun Hutinec, Gorjana Lazarevski, Sergio Lociuro, Zorica Marusic-Istuk, Stjepan Mutak, Alfonso Pozzan, Marko Derek
  • Patent number: 7235646
    Abstract: The present invention relates to an improved, cost effective and easy process for the preparation of azithromycin monohydrate isopropanol clathrate. The process provides a one-step method of preparing azithromycin monohydrate isopropanol clathrate directly from 9-deoxo-9a-aza-9a-homoerythromycin A. The process comprises at least partial dissolution and/or suspension of 9-deoxo-9a-aza-9a homoerythromycin A in isopropanol to form a mixture, adding methylating solution to the said mixture, refluxing or heating said mixture to form a reaction mixture, adding alkaline solution to the reaction mixture to adjust pH from about 10 to about 11 and isolating pure azithromycin monohydrate isopropanol clathrate. The process helps in reducing the total time of preparation, total utility cost for the production and also helps to avoid handling loss.
    Type: Grant
    Filed: June 27, 2005
    Date of Patent: June 26, 2007
    Assignee: Alembic Limited
    Inventors: Dhiren Natavarlal Mistry, Mahadeo Maroti Thorat, Kamlesh Sanmukhubhia Soni, Vinod Kumar Kansal
  • Patent number: 7232897
    Abstract: Disclosed herein are compositions and methods used to modulate a NH2-terminal Jun Kinase activity. These compositions and methods can be employed to regulate metabolic disorders associated with, for example, insulin such as diabetes. The reduction in NH2-terminal Jun Kinase activity can lead to the reduction in weight and improve insulin sensitivity.
    Type: Grant
    Filed: April 24, 2002
    Date of Patent: June 19, 2007
    Assignee: Harvard University, President and Fellows of Harvard College
    Inventors: Gokhan S. Hotamisligil, Michael Karin, Lufen Chang
  • Patent number: 7229972
    Abstract: The present invention discloses compounds of formula (I) or pharmaceutically acceptable salts, esters, or prodrugs thereof: which exhibit antibacterial properties. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject in need of antibiotic treatment. The invention also relates to methods of treating a bacterial infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention. The invention further includes process by which to make the compounds of the present invention.
    Type: Grant
    Filed: December 7, 2004
    Date of Patent: June 12, 2007
    Assignee: Enanta Pharmaceuticals, Inc.
    Inventors: Yat Sun Or, Datong Tang, Yonghua Gai, Ying Sun, Guoyou Xu, Zhe Wang
  • Patent number: 7205395
    Abstract: Azithromycin is prepared in a high yield by a simple process using a crystalline 9-deoxo-9a-aza-9a-homoerythromycin A hydrate.
    Type: Grant
    Filed: April 3, 2002
    Date of Patent: April 17, 2007
    Assignee: Hanmi Pharm Co., Ltd.
    Inventors: Gi Jeong Kim, Mi Ra Seong, Sang Min Yun, Kwee Hyun Suh
  • Patent number: 7205394
    Abstract: A clathrate of azithromycin hydrate with 1,2-propyleneglycol is much less hygroscopic than azithromycin hydrate or crystals known in the art, therefore, it can be useful for the preparation of a medicine for treating various microbial infections.
    Type: Grant
    Filed: April 25, 2002
    Date of Patent: April 17, 2007
    Assignee: Hanmi Pharm. Co., Ltd.
    Inventors: Kwee-Hyun Suh, Gi-Jeong Kim, Sang-Min Yoon, Mi-Ra Seong, Gwan-Sun Lee
  • Patent number: 7202221
    Abstract: The present invention relates to 14 or 15 membered macrolides substituted at the 4? position of formula (I) and pharmaceutically acceptable salts and solvates thereof, to processes for their preparation and their use in therapy or prophylaxis of systemic or topical bacterial infections in a human or animal body
    Type: Grant
    Filed: November 13, 2002
    Date of Patent: April 10, 2007
    Assignees: Glaxo Group Limited, Pliva D.D.
    Inventors: Suleman Alihodzic, Daniele Andreotti, Andrea Berdik, Ilaria Bientinesi, Stefano Biondi, Manuela Ciraco, Federica Damiani, Marko Djerek, Miljenko Dumic, Vesna Erakovic, Antun Hutinec, Gorjana Lazarevski, Sergio Lociuro, Natasa Marsic, Zorica Marusic-Istuk, Stjepan Mutak, Alfredo Paio, Drazen Pavlovic, Anna Quaglia, Wolfgang Schoenfeld, Vlado Stimac, Jessica Tibasco
  • Patent number: 7189704
    Abstract: The present invention discloses, inter alia, a compound of the following formula, or pharmaceutically acceptable salts, esters, or prodrugs thereof: which exhibit antibacterial properties. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject in need of antibiotic treatment. The invention also relates to methods of treating a bacterial infection in a subject by administering a pharmaceutical composition comprising the aforementioned compounds. The invention further includes processes by which to make the compounds of the present invention.
    Type: Grant
    Filed: June 16, 2005
    Date of Patent: March 13, 2007
    Assignee: Enanta Pharmaceuticals, Inc.
    Inventors: Deqiang Niu, Guoqiang Wang, Yat Sun Or, Ly Tam Phan
  • Patent number: 7163924
    Abstract: Antimicrobial ketolide compounds are provided having the formula (A): as well as pharmaceutically acceptable salts, esters or prodrugs thereof, pharmaceutical compositions comprising such compounds, methods of treating bacterial infections by the administration of such compounds, and processes for the preparation of the compounds.
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: January 16, 2007
    Assignee: Chiron Corporation
    Inventors: Matthew Burger, Daniel Chu
  • Patent number: 7157433
    Abstract: The present invention relates (a) to new compounds represented by Formula I: wherein M represents a macrolide subunit (macrolide moiety) derived from macrolide possessing the property of accumulation in inflammatory cells, V represents an anti-inflammatory steroid or nonsteroid subunit, or an antineoplastic or antiviral subunit and L represents a linking group covalently linking M and V; (b) to their pharmacologically acceptable salts, prodrugs and solvates, (c) to processes and intermediates for their preparation, and (d) to their use in the treatment of inflammatory/neoplastic/viral diseases and conditions in humans and animals.
    Type: Grant
    Filed: July 8, 2003
    Date of Patent: January 2, 2007
    Assignee: GlaxoSmithKline istrazivacki centar Zagreb
    Inventors: Mladen Mercep, Milan Mesic, Linda Tomaskovic, Stribor Markovic
  • Patent number: 7122525
    Abstract: The invention features a method of delivering a drug to a diseased cell by linking the drug to a rifamycin derivative, compositions that include drug-rifamycin conjugates of the invention, and methods for treating disease using those compositions.
    Type: Grant
    Filed: November 21, 2002
    Date of Patent: October 17, 2006
    Assignee: ActivBiotics, Inc.
    Inventors: Arthur F. Michaelis, Hawkins V. Maulding, Chalom Sayada, Congxiang Zha
  • Patent number: 7119180
    Abstract: A subject of the invention is a process for the preparation of the compounds of formula (I): Wherein the substituents are defined as in the application. The compounds of this invention exhibit antibiotic properties.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: October 10, 2006
    Assignee: Aventis Pharma S.A.
    Inventors: Constantin Agouridas, Francois Bretin, Alexis Denis, Claude Fromentin
  • Patent number: 7109176
    Abstract: The present invention relates (a) to new compounds represented by Formula I: wherein M represents a macrolide subunit (macrolide moiety) derived from macrolide possessing the property of accumulation in inflammatory cells, D represents a nonsteroidal subunit (nonsteroidal moiety) derived from nonsteroid drug with anti-inflammatory, analgesic and/or antipyretic activity (NSAID) and L represents a linking group covalently linking M and D; (b) to their pharmacologically acceptable salts, prodrugs and solvates, (c) to processes and intermediates for their preparation, and (d) to their use in the treatment of inflammatory diseases and conditions in humans and animals.
    Type: Grant
    Filed: July 7, 2003
    Date of Patent: September 19, 2006
    Assignee: Pliva-Istrazivacki Institut D.o.o.
    Inventors: Mladen Mercep, Milan Mesic, Linda Tomaskovic, Stribor Markovic
  • Patent number: 7105179
    Abstract: The invention relates to novel crystal forms of azithromycin, an antibiotic useful in the treatment of infections.
    Type: Grant
    Filed: May 6, 2005
    Date of Patent: September 12, 2006
    Assignee: Pfizer Inc.
    Inventors: Zheng J. Li, Andrew V. Trask
  • Patent number: 7091187
    Abstract: The present invention relates (a) to new compounds represented by Formula I: wherein M represents a macrolide subunit (macrolide moiety) derived from macrolide possessing the property of accumulation in inflammatory cells, S represents a steroid subunit (steroid moiety) derived from steroid drug with anti-inflammatory activity and L represents a linker molecule linking M and S, (b) to their pharmacologically acceptable salts, prodrugs and solvates, (c) to processes and intermediates for their preparation, and (d) to their use in the treatment of inflammatory diseases and conditions in humans and animals. Such compounds inhibit many cytokines and immune mediators involved in immune responses which cause inflammation, allergy, or alloimmunity, including without limitation IL-1, 2, 4, 5, 6, 10, 12, GMCSF, ICAM, and TNF-?. Importantly, anti-inflammatory steroids exert a direct anti-inflammatory effect through binding to the glucocorticosteroid receptor.
    Type: Grant
    Filed: July 8, 2003
    Date of Patent: August 15, 2006
    Assignee: Pliva-Istrazivacki Institut D.o.o.
    Inventors: Mladen Mercep, Milan Mesic, Linda Tomaskovic, Stribor Markovic, Oresta Makaruha, Visnja Poljak
  • Patent number: 7081525
    Abstract: The invention relates to novel crystal forms of azithromycin, an antibiotic useful in the treatment of infections.
    Type: Grant
    Filed: May 6, 2005
    Date of Patent: July 25, 2006
    Assignee: Pfizer Inc.
    Inventors: Zheng J. Li, Andrew V. Trask
  • Patent number: 7071170
    Abstract: This invention relates to compounds of the formula wherein a, R1, R2, R3, R4, R5, R6 and X are each as defined above, and to pharmaceutically acceptable salts thereof, useful as potent antibacterial and antiprotozoal agents that may be used to treat various bacterial and protozoal infections and disorders related to such infections. The invention also relates to pharmaceutical compositions containing the compounds of formula I and to methods of treating bacterial and protozoal infections by administering the compounds of formula I.
    Type: Grant
    Filed: July 21, 2004
    Date of Patent: July 4, 2006
    Assignee: Pfizer Inc.
    Inventor: Takushi Kaneko
  • Patent number: 7070811
    Abstract: The present invention relates to a dry blend, used for forming azithromycin tablets by direct compression, comprising non-dihydrate azithromycin and at least one pharmaceutically acceptable excipient. This invention also relates to an azithromycin tablet comprising non-dihydrate azithromycin and at least one pharmaceutically acceptable excipient. Preferably, the azithromycin tablet is formed by directly compressing the dry blend, of the present invention, to form said azithromycin tablet. Preferably, the azithromycin tablet, of the present invention, contains a dosage of 250 mgA, 500 mgA or 600 mgA of azithromycin. This invention further relates to an azithromycin tablet which is produced by forming a dry blend of a non-granulated azithromycin form A and at least one pharmaceutically acceptable excipient. The azithromycin tablet is then formed by directly compressing the dry blend.
    Type: Grant
    Filed: July 26, 2005
    Date of Patent: July 4, 2006
    Assignee: Pfizer Inc.
    Inventors: Brendan Murphy, Steven W. Collier, Ernest Quan, Barbara A. Johnson
  • Patent number: 7064109
    Abstract: The invention relates to a pharmaceutical composition for preventing and/or treating eye infections, which is to be used by local application. It is in particular directed towards such a composition which is in the form of an eye lotion which can be distributed by drops, in which an antibiotic of the macrolide class, such as azithromycin, is in solution in an oily vehicle. This vehicle is, in particular, of the type of product essentially consisting of medium-chain triglycerides in which the alcohol functions of the glycerol are entirely esterified by carboxylic acids made from saturated hydrocarbons, the molecule of which comprises from 5 to 12 carbon atoms. They are preferably linear-chain fatty acids comprising from 8 to 10 carbon atoms, such as caprylic acid or capric acid. The composition is advantageously prepared by dissolving the active agent in the oily vehicle at a temperature not exceeding 70° C.
    Type: Grant
    Filed: April 11, 2002
    Date of Patent: June 20, 2006
    Assignee: Laboratories Thea
    Inventors: Jacques Luyckx, Frederic Pilotaz
  • Patent number: 7064110
    Abstract: The present invention discloses compounds of formula I, or pharmaceutically acceptable salts, esters, or prodrugs thereof: which exhibit antibacterial properties. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject in need of antibiotic treatment. The invention also relates to methods of treating a bacterial infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention. The invention further includes process by which to make the compounds of the present invention.
    Type: Grant
    Filed: November 19, 2003
    Date of Patent: June 20, 2006
    Assignee: Enanta Pharmaceuticals, Inc.
    Inventors: Yat Sun Or, Wang Guoqiang, Ly Tam Phan, Deqiang Niu, Nha Huu Vo, Yao-Ling Qiu, Yanchun Wang, Marina Busuyek, Ying Hou, Yulin Peng, Heejin Kim, Tongzhu Liu, Jay Judson Farmer, Guoyou Xu
  • Patent number: 7053192
    Abstract: The invention relates to novel crystal forms of azithromycin, an antibiotic useful in the treatment of infections.
    Type: Grant
    Filed: May 6, 2005
    Date of Patent: May 30, 2006
    Assignee: Pfizer Inc.
    Inventors: Zheng J. Li, Andrew V. Trask
  • Patent number: 7049417
    Abstract: Novel 6,11-4-carbon bridged ketolides, pharmaceutically-acceptable compositions comprising a therapeutically effective amount of a compound of the invention in combination with a pharmaceutically-acceptable carrier are described. Also described are a method for treating bacterial infections by administering to an animal a pharmaceutical composition containing a therapeutically effective amount of a compound of the invention and processes for the preparation of such compounds.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: May 23, 2006
    Assignee: Enanta Pharmaceuticals, Inc.
    Inventors: Yat Sun Or, Guoqiang Wang, Deqiang Niu, Ly Tam Phan
  • Patent number: 7022679
    Abstract: The present invention relates to processes and intermediates for the preparation of 6–11 bicyclic erythromycin derivatives.
    Type: Grant
    Filed: January 14, 2004
    Date of Patent: April 4, 2006
    Assignee: Enanta Pharmaceuticals, Inc.
    Inventors: Heejin Kim, Guoqiang Wang, Yat Sun Or, Zhe Wang
  • Patent number: 6998390
    Abstract: Antibacterial compounds having formula (I) and formula (II) and salts, prodrugs, and salts of prodrugs thereof, processes for making the compounds and intermediates employed in the processes, compositions containing the compounds, and methods for prophylaxis or treatment of bacterial infections in a fish or a mammal using the compounds are disclosed.
    Type: Grant
    Filed: April 22, 2003
    Date of Patent: February 14, 2006
    Inventors: Zhenkun Ma, Stevan Djuric, Alan S. Florjancic, Hong Yong
  • Patent number: 6995143
    Abstract: The invention provides new macrolides antibiotics of formula I with improved biological properties and having the formula wherein R1, R2 and R3 are as herein described.
    Type: Grant
    Filed: February 20, 2003
    Date of Patent: February 7, 2006
    Assignee: Basilea Pharmaceutica AG
    Inventors: Philippe Guerry, Johannes Laurenz Kellenberger, Stéphanie Blanchard
  • Patent number: 6992069
    Abstract: Antibacterial compounds having formula (I) and salts, prodrugs, and salts of prodrugs thereof, processes for making the compounds and intermediates used in the processes, compositions containing the compounds, and methods for prophylaxis or treatment of bacterial infections using the compounds are disclosed.
    Type: Grant
    Filed: April 24, 2003
    Date of Patent: January 31, 2006
    Inventors: Yu-Gui Gu, Zhenkun Ma, Hong Yong
  • Patent number: 6977243
    Abstract: The invention relates to crystal forms of azithromycin, an antibiotic useful in the treatment of infections.
    Type: Grant
    Filed: May 21, 2002
    Date of Patent: December 20, 2005
    Assignee: Pfizer Inc.
    Inventors: Zheng J. Li, Andrew V. Trask
  • Patent number: 6949519
    Abstract: Azithromycin in the form of a monohydrate comprising from 4.0% to 6.5% of water, a process for its preparation and its use in pharmaceutical compositions.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: September 27, 2005
    Assignee: Sandoz AG
    Inventors: Victor Centellas, José Diago, Rafael Garcia, Johannes Ludescher
  • Patent number: 6946446
    Abstract: The invention relates to novel methods for using macrolide anti-infective agents. The macrolide anti-infective agents demonstrate antibacterial activity against multi-drug resistant strains of bacteria and, in particular, methicillin-resistant Staphylococcus aureus (MRSA). Methods for inhibiting the activity of multi-drug resistant bacterial organisms and methods for treating a bacterial infection caused by such organisms are described herein.
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: September 20, 2005
    Assignee: Abbott Laboratories
    Inventors: Zhenkun Ma, Peter Nemoto, Suoming Zhang, Hong Yong, Yat Sun Or
  • Patent number: 6939861
    Abstract: Various macrolide compounds such as those having the following formulas are provided where the variables have the values provided herein.
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: September 6, 2005
    Assignee: Kosan Biosciences, Inc.
    Inventors: Gary Ashley, Simon James Shaw, Yandong Li, David C. Myles
  • Patent number: 6936592
    Abstract: The invention relates to a method of preparing compounds of the formula and to pharmaceutically acceptable salts thereof. The compounds of formula 1 are antibacterial agents that may be used to treat various bacterial and protozoa infections. The invention also relates to pharmaceutical compositions containing the compounds of formula 1 and to methods of treating bacterial protozoa infections by administering the compounds of formula 1. The invention also relates to methods of preparing the compounds of formula 1 and to intermediates useful in such preparation.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: August 30, 2005
    Assignee: Pfizer, Inc.
    Inventors: Brian Scott Bronk, Michael Anthony Letavic
  • Patent number: 6936591
    Abstract: Substantially pure amorphous 9-deoxo-9a-aza-9a-methyl-9a-homoerythromycin A. In addition, this disclosure is directed to a process for the preparation thereof from crude 9-deoxo-9a-aza-9a-methyl-9a-homoerythromycin A via orthorhombic isostructural pseudopolymorphs of 9-deoxo-9a-aza-9a-methyl-9a-homoerythromycin A, of the general formula I: wherein S represents a water-miscible or water-immiscible organic solvent, characterized by the orthorhombic space group P212121, with average unit cell parameters a=8.2 to 9.7 ?, b=11.5 to 13.5 ?, c=44.5 to 47.0 ?, ?=?=?=90°, wherein a, b and c represent the crystal axes lengths and ?, ? and ? represent the angles between the crystal axes.
    Type: Grant
    Filed: July 21, 2003
    Date of Patent: August 30, 2005
    Assignee: Pliva Pharmaceutical Industry, Incorporated
    Inventors: Miljenko Dumić, Mladen Vinković, Marina Oresic, Ernest Mestrovic, Aleksandar Danilovski, Alojz Dumbovic, Knezevic Zdravka, Gorjana Lazarevski, Darko Filic, Dominik Cincic, Katica Lazaric, Dejan-Kresimir Bucar
  • Patent number: 6933283
    Abstract: Antibacterial compounds having formula (I) and formula (II) and salts, prodrugs, and salts of prodrugs thereof, processes for making the compounds and intermediates used in the processes, compositions containing the compounds, and methods for prophylaxis or treatment of bacterial infections using the compounds are disclosed.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: August 23, 2005
    Assignee: Abbott Laboratories
    Inventors: Richard Clark, Stevan Djuric, Zhenkun Ma
  • Patent number: 6900183
    Abstract: 11,12 ? lactone ketolides of the following formula: and pharmaceutically acceptable salts and solvates thereof, wherein R, R1, R2, and R3 are as described herein. The disclosure also relates to processes for the preparation of such compounds, to compositions containing them, and to their use in the therapy or prophylaxis of systemic or topical bacterial infections in a human or animal body.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: May 31, 2005
    Assignee: Glaxo Group Limited
    Inventors: Daniele Andreotti, Stefano Biondi, Sergio Lociuro
  • Patent number: 6878691
    Abstract: The present invention discloses compounds of formula I, or pharmaceutically acceptable salts, esters, or prodrugs thereof: which exhibit antibacterial properties. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject in need of antibiotic treatment. The invention also relates to methods of treating a bacterial infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention. The invention further includes process by which to make the compounds of the present invention.
    Type: Grant
    Filed: May 5, 2003
    Date of Patent: April 12, 2005
    Assignee: Enanta Pharmaceuticals, Inc.
    Inventors: Yat Sun Or, Guoqiang Wang, Ly Tam Phan, Deqiang Niu, Nha Huu Vo, Yao-Ling Qiu, Yanchun Wang, Marina Busuyek, Ying Hou, Yulin Peng, Heejin Kim, Tongzhu Liu, Jay Judson Farmer, Guoyou Xu
  • Patent number: 6872707
    Abstract: The invention relates to halo derivatives of 9a-N-(N?-arylcarbamoyl)- and 9a-N-(N?-arylthiocarbamoyl)-9-deoxo-9a-aza-9a-homoerythromycin A of the general formula (I) wherein R has the meaning of a substituted aryl group of the formula (II) wherein substituents a, b, c, d and e are the same or different and at least one of them has the meaning of halo, a (C1-C6)haloalkyl or a (C1-C6)haloalkoxy group, whereas the remaining ones have the meaning of hydrogen, halo, a (C1-C6)alkyl or a (C1-C6)alkoxy group, and X has the meaning of oxygen or sulfur, and pharmaceutically acceptable addition salts thereof with inorganic or organic acids, to a process for their preparation, to a process for the preparation of pharmaceutical compositions comprising them and to the use of these pharmaceutical compositions for the treatment or prevention of bacterial infections.
    Type: Grant
    Filed: May 2, 2000
    Date of Patent: March 29, 2005
    Assignee: PLIVA farmaceutska industrija dionicko drustvo
    Inventors: Zorica Maru{hacek over (s)}ic-I{hacek over (s)}tuk, Nedjelko Kujund{hacek over (z)}ić , Gabrijela Kobrehel, Stjepan Mutak, Nata{hacek over (s)}a Mar{hacek over (s)}ić
  • Patent number: 6861411
    Abstract: The invention features methods and compositions for treating ocular infections. The method comprises topically administering to an eye of an animal in need of such treatment an ocular infection-treating amount of azithromycin.
    Type: Grant
    Filed: November 25, 1998
    Date of Patent: March 1, 2005
    Assignee: Pfizer, Inc.
    Inventor: Imran Ahmed
  • Patent number: 6861413
    Abstract: This invention relates to a powder for oral suspension, and an oral suspension made therefrom, which comprises a n-propanol solvate of non-dihydrate azithromycin and an azithromycin conversion stabilizing excipient, wherein said excipient reduces the conversion of the form of azithromycin, when placed in suspension, to another form of azithromycin. This invention also relates to an oral suspension which comprises a n-propanol solvate of non-dihydrate azithromycin and an aqueous vehicle.
    Type: Grant
    Filed: July 15, 2003
    Date of Patent: March 1, 2005
    Assignee: Pfizer Inc.
    Inventors: Zheng J. Li, Andrew V. Trask
  • Patent number: 6861412
    Abstract: This invention relates to a novel crystalline diphosphate salt of (2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-13-[[2,6-dideoxy-3-C-methyl-3-o-methyl-4-C-[(propylamino)methyl]-?-L-ribo-hexopryanosyl]oxy]-2-ethyl-3,4,10-trihydroxy-3,5,8,10,12,14-hexamethyl-11-[[3,4,6-trideoxy-3-(dimethylamino)-?-D-xylo-hexopyranosyl]oxy]-1-oxa-6-azacyclopentadecan-15-one that is useful as an antibacterial and antiprotozoal agent in mammals. This invention also relates to pharmaceutical compositions containing the free base of the diphosphate salt and the methods of treating bacterial and protozoal infections in mammals by administering the free base of the diphosphate to mammals requiring such treatment. The free base of the diphosphate salt of the present invention possesses potent activity against various bacterial and protozoal infections when given by parenteral application to mammals.
    Type: Grant
    Filed: August 12, 2002
    Date of Patent: March 1, 2005
    Assignee: Pfizer, Inc.
    Inventors: Robert J. Rafka, Colman B. Ragan, Douglas J. M. Allen
  • Patent number: 6855813
    Abstract: The invention relates to a process for making Azithromycin crystals using a number of process steps that avoids the use of cumbersome and/or inefficient extraction and/or isolation procedures.
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: February 15, 2005
    Assignee: Alembic Limited
    Inventor: Srinivasan Rengaraju
  • Patent number: 6852702
    Abstract: 9a-N-[N?-(phenylsulfonyl)carbamoyl] derivatives of 9-deoxo-9-dihydro-9a-aza-9a-homoerythromycin A and of 5-O-desosaminyl-9-deoxo-9-dihydro-9a-aza-9a-homoerythronolide A and their pharmaceutically acceptable addition salts with inorganic or organic acids are provided, along with a process for their preparation, pharmaceutical compositons, and use in treating bacterial infections.
    Type: Grant
    Filed: February 27, 2002
    Date of Patent: February 8, 2005
    Assignee: Pliva D.D.
    Inventors: Nedjeljko Kujundzic, Mirjana Bukvic Krajacic, Miljenko Dumic, Andrea Hasenohrl
  • Patent number: 6849608
    Abstract: A macrolide antibiotic of the formula wherein the variables are defined as described herein.
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: February 1, 2005
    Assignee: Pfizer, Inc.
    Inventors: Wei-Guo Su, Yan Chen
  • Patent number: 6841664
    Abstract: Novel 6,11-4-carbon bridged ketolides, pharmaceutically-acceptable compositions comprising a therapeutically effective amount of a compound of the invention in combination with a pharmaceutically-acceptable carrier are described. Also described are a method for treating bacterial infections by administering to an animal a pharmaceutical composition containing a therapeutically effective amount of a compound of the invention and processes for the preparation of such compounds.
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: January 11, 2005
    Assignee: Enanra Pharmaceuticals, Inc.
    Inventors: Yat Sun Or, Guoqiang Wang, Deqiang Niu, Ly Tam Phan
  • Patent number: RE39087
    Abstract: A novel form of azithromycin and processes for preparation of pure azithromycin monohydrate isopropanol clathrate (3 molecules of isopropanol for every 10 molecules of azithromycin monohydrate) has been obtained. Preparation of the novel form of azithromycin comprises the steps of dissolving azithromycin in isopropanol, followed by the slow addition of water to the organic solution.
    Type: Grant
    Filed: June 5, 2003
    Date of Patent: May 2, 2006
    Assignee: Apotex, Inc.
    Inventors: Khashayar Karimian, Mehrnoush Motamedi
  • Patent number: RE39149
    Abstract: An oral dosage form of azithromycin which does not exhibit an adverse food effect; Specific azithromycin oral dosage forms including tablets, powders for oral suspensions and unit dose packets; Methods of treating microbial infections with the dosage forms; And therapeutic packages containing the dosage forms.
    Type: Grant
    Filed: January 20, 2005
    Date of Patent: June 27, 2006
    Assignee: Pfizer Inc.
    Inventors: William J. Curatolo, George H. Foulds, Hylar L. Friedman
  • Patent number: RE39383
    Abstract: A procedure for preparing 6-O-alkyl erythromycin compounds having the formula: wherein R1 is a loweralkyl group, R2 and R3 an independently hydrogen or a hydroxy-protecting group, except that R2 and R3 may not both be hydrogen simultaneously; Y is oxygen or a specifically substituted oxime; and Z is hydrogen, hydroxy or protected-hydroxy; by reaction of the compound wherein R1 is hydrogen with an alkylating reagent, is the presence of a strong alkali metal base and also in the presence of a weak organic amino base, in a suitable stirred or agitated polar aprotic solvent, or a mixture of such polar aprotic solvents maintained at a reaction temperature and for a period of time sufficient to effect alkyation.
    Type: Grant
    Filed: March 22, 2004
    Date of Patent: November 7, 2006
    Assignee: Abbott Laboratories
    Inventors: Jih-Hua Liu, George A. Foster, Jr., Stephen H. Montgomery
  • Patent number: RE39531
    Abstract: Disclosed are 9-hydrazone erythromycin and 9-azine erythromycin derivatives and the processes for making the same. The compounds are useful intermediates for conversion into 6-O-alkyl erythromycin. Also disclosed are the processes for converting the compounds into 6-O-alkyl erythromycin.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: March 27, 2007
    Assignee: Abbott Laboratories
    Inventor: David R. Hill
  • Patent number: RE39591
    Abstract: Antimicrobial compounds having the formula as well as pharmaceutically acceptable salts, esters or prodrugs thereof; pharmaceutical compositions comprising such compounds; methods of treating bacterial infections by the administration of such compounds; and processes for the preparation of the compounds.
    Type: Grant
    Filed: January 6, 2004
    Date of Patent: April 24, 2007
    Assignee: Abbott Laboratories
    Inventors: Yat Sun Or, Zhenkun Ma, Richard F. Clark, Daniel T. Chu, Jacob J. Plattner, George Griesgraber
  • Patent number: RE39743
    Abstract: Novel compounds of the formula wherein the substituents are defined as in the application having antibiotic properties.
    Type: Grant
    Filed: November 21, 2002
    Date of Patent: July 24, 2007
    Assignee: Aventis Pharma S.A.
    Inventors: Constantin Agouridas, Francois Bretin, Alexis Denis, Claude Fromentin