Patents by Inventor Cheuk M. Lee

Cheuk M. Lee 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: 5726182
    Abstract: Antibacterial compounds having the formula ##STR1## and the pharmaceutically acceptable salts, esters and amides thereof, selected preferred examples of which include those compounds whereinA is .dbd.CR.sup.6 --;R.sup.1 is cycloalkyl of from three to eight carbon atoms or substituted phenyl;R.sup.2 is selected from the group consisting of ##STR2## R.sup.3 is halogen; R.sup.4 is hydrogen, loweralkyl, a pharmaceutically acceptable cation, or a prodrug ester group;R.sup.5 is hydrogen, loweralkyl, halo(loweralkyl), or --NR.sup.13 R.sup.14 ; andR.sup.6 is halogen, loweralkyl, halo(loweralkyl), hydroxy-substituted loweralkyl, loweralkoxy(loweralkyl), loweralkoxy, or amino(loweralkyl),as well as pharmaceutical compositions containing such compounds and the use of the same in the treatment of bacterial infections.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: March 10, 1998
    Assignee: Abbott Laboratories
    Inventors: Daniel T. Chu, Qun Li, Curt S. Cooper, Anthony K. L. Fung, Cheuk M. Lee, Jacob J. Plattner, Zhenkun Ma, Wei-Bo Wang
  • Patent number: 5599816
    Abstract: Antibacterial compounds having the formula ##STR1## and the pharmaceutically acceptable salts, esters and amides thereof, selected preferred examples of which include those compounds whereinA is.dbd.CR.sup.6 --;R.sup.1 is cycloalkyl of from three to eight carbon atoms or substituted phenyl;R.sup.2 is selected from the group consisting of ##STR2## R.sup.3 is halogen; R.sup.4 is hydrogen, loweralkyl, a pharmaceutically acceptable cation, or a prodrug ester group;R.sup.5 is hydrogen, loweralkyl, halo(loweralkyl), or --NR.sup.13 R.sup.14 ; andR.sup.6 is halogen, loweralkyl, halo(loweralkyl), hydroxy-substituted loweralkyl, loweralkoxy(loweralkyl), loweralkoxy, or amino(loweralkyl),as well as pharmaceutical compositions containing such compounds and the use of the same in the treatment of bacterial infections.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: February 4, 1997
    Assignee: Abbott Laboratories
    Inventors: Daniel T. Chu, Qun Li, Curt S. Cooper, Anthony K. L. Fung, Cheuk M. Lee, Jacob J. Plattner, Zhenkun Ma, Wei-Bo Wang
  • Patent number: 5580872
    Abstract: Antibacterial compounds having the formula ##STR1## and the pharmaceutically acceptable salts, esters and amides thereof, preferred examples of which include those compounds whereinA is .dbd.CR.sup.6 --;R.sup.1 is cycloalkyl of from three to eight carbon atoms or substituted phenyl;R.sup.2 is selected from the group consisting of ##STR2## R.sup.3 is halogen; R.sup.4 is hydrogen, loweralkyl, a pharmaceutically acceptable cation, or a prodrug ester group;R.sup.5 is hydrogen, loweralkyl, halo(loweralkyl), or --NR.sup.13 R.sup.14 ; andR.sup.6 is halogen, loweralkyl, halo(loweralkyl), hydroxy-substituted loweralkyl, loweralkoxy(loweralkyl), loweralkoxy, or amino(loweralkyl),as well as pharmaceutical compositions containing such compounds and the use of the same in the treatment of bacterial infections.
    Type: Grant
    Filed: September 30, 1994
    Date of Patent: December 3, 1996
    Assignee: Abbott Laboratories
    Inventors: Daniel T. Chu, Qun Li, Curt S. Cooper, Anthony K. L. Fung, Cheuk M. Lee, Jacob J. Plattner
  • Patent number: 4435422
    Abstract: Described are compounds of the formula ##STR1## wherein R.sub.1 and R.sub.2 independently of one another denote hydrogen or loweralkyl; A is CO, CH.sub.2, O, S, SO or CHOH; X is hydrogen, halo, loweralkyl, or --CH.sub.2 NR.sub.1 R.sub.2 wherein R.sub.1 and R.sub.2 are as defined above; W is COOR wherein R is hydrogen or alkyl of 1-10 carbon atoms, CH.sub.2 OH, CONR.sub.1 R.sub.2 or CH.sub.2 NR.sub.1 R.sub.2 wherein R.sub.1 and R.sub.2 are as defined above; Z.sub.1 and Z.sub.2 independently of one another denote hydrogen, halo or loweralkyl; and pharmaceutically acceptable salts thereof.The compounds are effective as diuretic agents.
    Type: Grant
    Filed: September 15, 1982
    Date of Patent: March 6, 1984
    Assignee: Abbott Laboratories
    Inventors: Cheuk M. Lee, James A. Parks
  • Patent number: 4323691
    Abstract: Described are compounds of the formula ##STR1## wherein ##STR2## wherein Z is hydrogen or loweralkyl, R.sub.5 and R.sub.6 may be the same or different and are hydrogen, loweralkyl or together are alkylene of 4 or 5 carbon atoms,R.sub.2 is hydrogen, halo, haloloweralkyl, loweralkyl, loweralkoxy, loweralkylthio or ##STR3## wherein R.sub.5 and R.sub.6 are previously defined, R.sub.3 is hydroxy, alkoxy, branched alkoxy, adamantyloxy, morpholino, amino or amino substituted by loweralkyl or alkylene of 4 or 5 carbon atoms,R.sub.4 is hydrogen or loweralkyl, andX.sub.1 and X.sub.2 are hydrogen, loweralkyl, halo or when substituted on adjacent carbon atoms of the benzene ring form a 1,3-butadienylene linkage, Y is oxygen or sulfur, and pharmaceutically acceptable salts thereof. The compounds are effective as diuretic agents in increasing urinary excretion.
    Type: Grant
    Filed: December 1, 1980
    Date of Patent: April 6, 1982
    Assignee: Abbott Laboratories
    Inventors: Carroll W. Ours, Cheuk M. Lee
  • Patent number: 4254116
    Abstract: 5H-[1]Benzopyrano[3,4-d]pyridines represented by the formula ##STR1## wherein each R.sub.1 is loweralkyl, R.sub.2 is alkyl, cycloalkyl or ##STR2## wherein Y is a straight or branched chain alkylene group having from 1 to 10 carbon atoms and each R.sub.4, R.sub.5 and R.sub.6 are the same or different members of the group consisting of hydrogen, halo, trifluoromethyl or loweralkyl; and R.sub.3 is hydroxy, acyloxy, loweralkoxy, loweralkenyloxy, loweralkynyloxy or ##STR3## X is a straight or branched chain alkylene group having from one to eight carbon atoms, and wherein R.sub.7 and R.sub.8 are the same or different members of the group consisting of hydrogen or loweralkyl, or ##STR4## wherein X is a straight or branched chain alkylene group having from one to eight carbon atoms, a is an integer from 1 to 4, b is an integer from 1 to 4, Z is CH.sub.2, O, S or NR.sub.10 with R.sub.10 being hydrogen or loweralkyl, with the limitation that when Z is O or S, the sum of a and b is 3 or 4; and when Z is NR.sub.
    Type: Grant
    Filed: April 8, 1974
    Date of Patent: March 3, 1981
    Assignee: Abbott Laboratories
    Inventor: Cheuk M. Lee
  • Patent number: 4172943
    Abstract: A compound of the formula ##STR1## wherein R.sub.1 is H or loweralkyl; R.sub.2 is H, loweralkyl, phenyl or substituted phenyl; R is C.sub.3 -C.sub.20 alkyl, phenyl alkyl or substituted phenyl alkyl; R.sub.3 is H or ##STR2## where X is a straight or branched chain alkylene group of 3 to 4 carbon atoms, and R.sub.4 and R.sub.5 are the same or different members of the group consisting of H or loweralkyl; or R.sub.4 and R.sub.5 taken together form a 6- or 6- member heterocyclic ring and containing no more than one additional heterocyclic atom, with or without .alpha.-loweralkyl substituents, and the acid addition salts thereof.The compounds of this invention are useful as analgesics, tranquilizers, sedative-hypnotics and anti-glaucoma agents.
    Type: Grant
    Filed: August 4, 1978
    Date of Patent: October 30, 1979
    Assignee: Abbott Laboratories
    Inventors: Harold E. Zaugg, Cheuk M. Lee
  • Patent number: 4152327
    Abstract: A compound of the formula ##STR1## wherein n is 1 or 2; R is C.sub.3 -C.sub.20 alkyl or arylalkyl; R.sub.1 is OH, loweralkoxy or NR.sub.2 R.sub.3 where R.sub.2 and R.sub.3 each are H, lower-alkyl or aryl.The compounds of this invention are useful as tranquilizers, analgesics, and sedative-hypnotics.
    Type: Grant
    Filed: April 19, 1978
    Date of Patent: May 1, 1979
    Assignee: Abbott Laboratories
    Inventors: Harold E. Zaugg, Cheuk M. Lee
  • Patent number: 4137232
    Abstract: A compound of the formula ##STR1## wherein n is 1 or 2; R is C.sub.3 -C.sub.20 alkyl, phenyl alkyl or substituted phenyl alkyl; R.sub.1 is NR.sub.2 R.sub.3 where R.sub.2 and R.sub.3 each are H, loweralkyl or phenyl or substituted phenyl.The compounds of this invention are useful as tranquilizers, analgesics, and sedative-hypnotics.
    Type: Grant
    Filed: April 19, 1978
    Date of Patent: January 30, 1979
    Assignee: Abbott Laboratories
    Inventors: Harold E. Zaugg, Cheuk M. Lee