Patents by Inventor Michael Lingard Swain

Michael Lingard Swain has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7396847
    Abstract: Compounds of the formula (I), or a pharmaceutically-acceptable salt, or an in-vivo-hydrolysable ester thereof, and compounds as shown in (I) wherein C is for example wherein A and B are independently selected from R2a to R3b are independently selected from hydrogen and fluorine; R1a and R1b are independently selected from, for example, hydroxy, —NHC(?W)R4, wherein W is O or S; R4 is, for example, hydrogen, amino, (1-4C)alkyl; HET-1 is, for example, a C-linked 5-membered heteroaryl ring; HET-2 is, for example, an N-linked 5-membered, fully or partially unsaturated heterocyclic ring; are useful as antibacterial agents; and processes for their manufacture and pharmaceutical compositions containing them are described.
    Type: Grant
    Filed: September 9, 2002
    Date of Patent: July 8, 2008
    Assignee: AstraZeneca AB
    Inventors: Michael Barry Gravestock, Neil James Hales, Michael Lingard Swain, Sheila Irene Hauck, Stuart Dennett Mills
  • Patent number: 7342005
    Abstract: The present invention relates to carbapenems and provides a compound of the formula (I): or a pharmaceutically acceptable salt or in vivo hydrolysable ester thereof wherein: R1 is 1-hydroxyethyl, 1-fluoroethyl or hydroxymethyl; R2 is hydrogen or C1-4alkyl; R3 is hydrogen or C1-4alkyl; R4 and R5 are the same or different and are selected from hydrogen, halo, cyano, C1-4alkyl, nitro, hydroxy, carboxy, C1-4alkoxy, C1-4alkoxycarbonyl, aminosulphonyl, C1-4alkylaminosulphonyl, di-C1-4-alkylaminosulphonyl, carbamoyl, C1-4alkylcarbamoyl, di-C1-4alkylcarbamoyl, trifluoromethyl, sulphonic acid, amino, C1-4alkylamino, di-C1-4alkylamino, C1-4alkanoylamino, C1-4alkanoyl(N—C1-4alkyl)amino, C1-4alkanesulphonamido and C1-4alkylS(O)n—wherein n is zero, one or two; with the proviso that there is no hydroxy or carboxy substituent in a position ortho to the link to —NR3—; processes for their preparation, intermediates in their preparation, their use as therapeutic agents and pharmaceutical compositions containing them.
    Type: Grant
    Filed: May 11, 2005
    Date of Patent: March 11, 2008
    Assignee: AstraZeneca UK Limited
    Inventors: Michael John Betts, Gareth Morse Davies, Michael Lingard Swain
  • Patent number: 7041836
    Abstract: The present invention relates to carbapenems and provides a compound of the formula (I): or a pharmaceutically acceptable salt or in vivo hydrolysable ester thereof wherein: R1 is 1-hydroxyethyl, 1-fluoroethyl or hydroxymethyl; R2 is hydrogen or C1-4alkyl; R3 is hydrogen or C1-4alkyl; R4 and R5 are the same or different and are selected from hydrogen, halo, cyano, C1-4alkyl, nitro, hydroxy, carboxy, C1-4alkoxy, C1-4alkoxycarbonyl, aminosulphonyl, C1-4alkylaminosulphonyl, di-C1-4-alkylaminosulphonyl, carbamoyl, C1-4alkylcarbamoyl, di-C1-4-alkylcarbamoyl, trifluoromethyl, sulphonic acid, amino, C1-4alkylamino, di-C1-4alkylamino, C1-4alkanoylamino, C1-4alkanoyl(N—C1-4alkyl)amino, C1-4alkanesulphonamido and C1-4alkylS(O)n— wherein n is zero, one or two: with the proviso that there is no hydroxy or carboxy substituent in a position ortho to the link to —NR3—. Processes for their preparation, intermediates in their preparation, their use as therapeutic agents and pharmaceutical compositions containing them.
    Type: Grant
    Filed: November 14, 2002
    Date of Patent: May 9, 2006
    Assignee: AstraZeneca UK Limited
    Inventors: Michael John Betts, Gareth Morse Davies, Michael Lingard Swain
  • Publication number: 20030144264
    Abstract: The present invention relates to carbapenems and provides a compound of the formula (I): 1
    Type: Application
    Filed: November 14, 2002
    Publication date: July 31, 2003
    Applicant: ZENECA LIMITED
    Inventors: Michael John Betts, Gareth Morse Davies, Michael Lingard Swain
  • Patent number: 6521612
    Abstract: The present invention relates to carbapenems and provides a compound of the formula (I): or a pharmaceutically acceptable salt or in vivo hydrolysable ester thereof wherein: R1 is 1-hydroxyethyl, 1-fluoroethyl or hydroxymethyl; R2 is hydrogen or C1-4alkyl; R3 is hydrogen or C1-4alkyl; R4 and R5 are the same or different and are selected from hydrogen, halo, cyano, C1-4alkyl, nitro, hydroxy, carboxy, C1-4alkoxy, C1-4alkoxycarbonyl, aminosulphonyl, C1-4alkylaminosulphonyl, di-C1-4-alkylaminosulphonyl, carbamoyl, C1-4alkylcarbamoyl, di-C1-4 alkylcarbamoyl, trifluoromethyl, sulphonic acid, amino, C1-4alkylamino, di-C1-4alkylamino, C1-4alkanoylamino, C1-4alkanoyl(N—C1-4alkyl)amino, C1-4alkanesulphonamido and C1-4alkylS(O)n— wherein n is zero; one or two: with the proviso that there is no hydroxy or carboxy substituent in a position ortho to the link to —NR3—.
    Type: Grant
    Filed: February 13, 2001
    Date of Patent: February 18, 2003
    Assignee: Zeneca Ltd.
    Inventors: Michael John Betts, Gareth Morse Davies, Michael Lingard Swain
  • Patent number: 6495551
    Abstract: The invention concerns compounds of formula (I), wherein, for example, R1 is of the formula —NHC(═O)Ra wherein Ra is (1-4C)alkyl; R2 and R3 are independently hydrogen or fluoro; R5 and R6 are, for example, hydrogen; R4 is —X—Y—Het.; wherein, for example, X is a direct bond and Y is —(CH2)m— or —CONH—(CH2)m—; or X is —(CH2)n— and Y is —S(O)p—(CH2)m—; or X is —CH2O—or —CH2NH— and Y is —CO—(CH2)m—; wherein n is 1, 2 or 3; m is 0, 1, 2 or 3 and p is 0, 1 or 2; wherein Het. is a heterocyclic ring, unsaturated or saturated, optionally substituted by, for example, (1-4C)alkyl, halo, cyano, nitro or amino; pharmaceutically acceptable salts and in vivo hydrolysable ester thereof; processes for their preparation; pharmaceutical compositions containing them and their use as antibacterial agents.
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: December 17, 2002
    Inventors: Michael John Betts, Michael Lingard Swain
  • Publication number: 20020042408
    Abstract: The present invention relates to carbapenems and provides a compound of the formula (I): 1
    Type: Application
    Filed: February 13, 2001
    Publication date: April 11, 2002
    Applicant: ZENECA LIMITED
    Inventors: Michael John Betts, Gareth Morse Davies, Michael Lingard Swain
  • Patent number: 6187804
    Abstract: The present invention relates to carbapenems and provides a compound of the formula (I): or a pharmaceutically acceptable salt or in vivo hydrolysable ester thereof wherein: R1 is 1-hydroxyethyl, 1-fluoroethyl or hydroxymethyl; R2 is hydrogen or C1-4alkyl; R3 is hydrogen or C1-4alkyl; R4 and R5 are the same or different and are selected from hydrogen, halo, cyano, C1-4alkyl, nitro, hydroxy, carboxy, C1-4alkoxy, C1-4alkoxycarbonyl, aminosulphonyl, C1-4alkylaminosulphonyl, di-C1-4-alkylaminosulphonyl, carbamoyl, C1-4alkylcarbamoyl, di-C1-4 alkylcarbamoyl, trifluoromethyl, sulphonic acid, amino, C1-4alkylamino, di-C 14alkylamino, C1-4alkanoylamino, C1-4alkanoyl(H-C1-4alkyl)amino, C1-4alkanesulphonamido and C1-4alkylS(O)n— wherein n is zero, one or two: with the proviso that there is no hydroxy or carboxy substituent in a position ortho to the link to —NR3—.
    Type: Grant
    Filed: October 8, 1998
    Date of Patent: February 13, 2001
    Assignee: Zeneca Limited
    Inventors: Michael John Betts, Gareth Morse Davies, Michael Lingard Swain
  • Patent number: 5856321
    Abstract: The present invention relates to carbapenems and provides a compound of the formula (I): ##STR1## or a pharmaceutically acceptable salt or in vivo hydrolysable ester thereof wherein:R.sup.1 is 1-hydroxyethyl, 1-fluoroethyl or hydroxymethyl;R.sup.2 is hydrogen or C.sub.1-4 alkyl;R.sup.3 is hydrogen or C.sub.1-4 alkyl;R.sup.4 and R.sup.5 are the same or different and are selected from hydrogen, halo, cyano, C.sub.1-4 alkyl, nitro, hydroxy, carboxy, C.sub.1-4 alkoxy, C.sub.1-4 alkoxycarbonyl, aminosulphonyl, C.sub.1-4 alkylaminosulphonyl, di-C.sub.1-4 -alkylaminosulphonyl, carbamoyl, C.sub.1-4 alkylcarbamoyl, di-C.sub.1-4 alkylcarbamoyl, trifluoromethyl, sulphonic acid, amino, C.sub.1-4 alkylamino, di-C.sub.1-4 alkylamino, C.sub.1-4 alkanoylamino, C.sub.1-4 alkanoyl(N--C.sub.1-4 alkyl)amino, C.sub.1-4 alkanesulphonamido and C.sub.1-4 alkylS(O).sub.n -- wherein n is zero, one or two:with the proviso that there is no hydroxy or carboxy substituent in a position ortho to the link to --NR.sup.3 --.
    Type: Grant
    Filed: April 3, 1997
    Date of Patent: January 5, 1999
    Assignee: Zeneca Limited
    Inventors: Michael John Betts, Gareth Morse Davies, Michael Lingard Swain
  • Patent number: 5652233
    Abstract: The present invention relates to carbapenems and provides a compound of the formula (I): ##STR1## or a pharmaceutically acceptable salt or in vivo hydrolysable ester thereof wherein:R.sup.1 is 1-hydroxyethyl, 1-fluoroethyl or hydroxymethyl;R.sup.2 is hydrogen or C.sub.1-4 alkyl;R.sup.3 is hydrogen or C.sub.1-4 alkyl;R.sup.4 and R.sup.5 are the same or different and are selected from hydrogen, halo, cyano, C.sub.1-4 alkyl, nitro, hydroxy, carboxy, C.sub.1-4 alkoxy, C.sub.1-4 alkoxycarbonyl, aminosulphonyl, C.sub.1-4 alkylaminosulphonyl, di-C.sub.1-4 -alkylaminosulphonyl, carbamoyl, C.sub.1-4 alkylcarbamoyl, di-C.sub.1-4 alkylcarbamoyl, trifluoromethyl, sulphonic acid, amino, C.sub.1-4 alkylamino, di-C.sub.1-4 alkylamino, C.sub.1-4 alkanoylamino, C.sub.1-4 alkanoyl(N-C.sub.1-4 alkyl)amino, C.sub.1-4 alkanesulphonamido and C.sub.1-4 alkylS(O)n- wherein n is zero, one or two:with the proviso that there is no hydroxy or carboxy substituent in a position ortho to the link to --NR.sup.3 --.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: July 29, 1997
    Assignee: Zeneca Limited
    Inventors: Michael John Betts, Gareth Morse Davies, Michael Lingard Swain