Ring Nitrogen Is Shared By Two Cyclos Patents (Class 544/263)
  • Patent number: 4405780
    Abstract: This invention relates to compounds having the formula ##STR1## wherein R represents hydrogen, alkyl containing one to four carbon atoms, or alkoxyalkyl, alkenyl or alkynyl containing two to four carbon atoms, R.sub.1 represents hydrogen or 1-oxoalkyl containing one to two carbon atoms and wherein X and Y are carbon or nitrogen with the proviso that one of X and Y must be nitrogen and the other carbon and which are useful diuretic agents.
    Type: Grant
    Filed: February 26, 1982
    Date of Patent: September 20, 1983
    Assignee: G. D. Searle & Co.
    Inventor: Hans Wagner
  • Patent number: 4255424
    Abstract: Disclosed are antibiotic cephalosporins (I) of the formula: ##STR1## Wherein the stylized radical attached to the 7-amino nitrogen of the cephalosporin moiety represents a nitrogen-containing heterocyclic group (mono- or polycyclic); R is, inter alia, hydrogen, alkyl, heterocyclylalkyl, aryl, alkenyl, aralkyl, --NR.sub.2, --OR, COOR, CONR.sub.2 or CN; A is conventionally known in the cephalosporin art; and R.sup.2 is H, or loweralkoxyl; X is O, CH.sub.2, or NR.sup.7 (R.sup.7 is, inter alia, hydrogen, alkyl or aralkyl. Also disclosed are the pharmaceutically acceptable salt and ester derivatives of I; processes for the preparation of such compounds, pharmaceutical compositions comprising such compounds; and methods of treatment comprising administering such compounds and compositions when an antibiotic effect is indicated.
    Type: Grant
    Filed: April 27, 1979
    Date of Patent: March 10, 1981
    Assignee: Merck & Co., Inc.
    Inventor: John Hannah
  • Patent number: 4223031
    Abstract: 6-(1H-Tetrazol-5-yl)thiozolo[3,2-a]pyrimidin-5-ones, 3-(1H-tetrazol-5-yl)-4H-pyrimido[2,1-b]benzothiazol-4-ones, and the corresponding imidazo- and triazolo-pyrimidines, thiones, and imines are useful as antiallergy and antiasthmatic compounds by virtue of their inhibitory action on the immediate hypersensitivity reaction in mammals and relaxant action on the tracheal muscle. Intermediates in the synthesis of these substances from 2-aminoazoles and ethoxy-methylene malononitrile also have smooth muscle relaxant and immediate hypersensitivity reaction inhibitory activity.
    Type: Grant
    Filed: May 5, 1978
    Date of Patent: September 16, 1980
    Assignee: Mead Johnson & Company
    Inventors: Robert R. Covington, Davis L. Temple, Jr., Joseph P. Yevich
  • Patent number: 4214891
    Abstract: Triazolone herbicides of the formula: ##STR1## where V is hydrogen, fluorine, chlorine, bromine, methyl or OR where R is alkyl of 1-4 carbon atoms;X is hydrogen, fluorine, chlorine, bromine, cyano, methyl, methoxy, or nitro;Y is hydrogen, fluorine, chlorine, bromine, or methyl;n, m is 0, 1, 2, 3 or 4;Q is oxygen or sulfur;Z is oxygen, S(O).sub.p or NR';p is 0, 1 or 2 andR' is alkyl of 1--3 carbon atomswith the provisos that(1) n+m=2, 3, or 4; and(2) if n+m=2 or 4 then Y, X.noteq.Hand when Z is S(O)p, n is 1, 2, 3 or 4.
    Type: Grant
    Filed: July 19, 1978
    Date of Patent: July 29, 1980
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Anthony D. Wolf
  • Patent number: 4209621
    Abstract: This disclosure describes substituted 1,2,4-triazolo[1,5-a]pyrimidines and substituted 1,2,4-triazolo[4,3-a]pyrimidines which possess anxiolytic activity.
    Type: Grant
    Filed: April 27, 1979
    Date of Patent: June 24, 1980
    Assignee: American Cyanamid Company
    Inventors: John P. Dusza, Robert A. Hardy, Jr., Jay D. Albright
  • Patent number: 4144330
    Abstract: S-Triazolo-(1,5-a)-pyrimidin-2-yl-5,7-dimethyl-phosphoric acid derivatives of the formula ##STR1## wherein X represents oxygen or sulphur,R.sub.1 represents C.sub.1 -C.sub.6 -alkyl, andR.sub.2 represents C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy, C.sub.1 -C.sub.6 -alkylthio, C.sub.1 -C.sub.6 -alkylamino or di-C.sub.1 -C.sub.6 -alkylamino, processes for producing them, and their use in combating pests.
    Type: Grant
    Filed: November 4, 1977
    Date of Patent: March 13, 1979
    Assignee: Ciba-Geigy Corporation
    Inventors: Laurenz Gsell, Willy Meyer
  • Patent number: 4124764
    Abstract: New 1,7-dihydro-1-substituted-3H-pyrazolo[4,3-e]-1,2,4-triazolo[4,3-c]pyrimidi ne-3-thione and 3-one mesoionic didehydro derivatives which have the formula ##STR1## wherein R.sub.1 is hydrogen, lower alkyl, phenyl-lower alkyl, cycloalkyl or hydroxy-lower alkyl;R.sub.2 is hydrogen or lower alkyl;R.sub.3 is lower alkyl, cycloalkyl or hydroxy-lower alkyl; andX is sulfur or oxygen,Are useful as anti-inflammatory agents.
    Type: Grant
    Filed: September 13, 1977
    Date of Patent: November 7, 1978
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Uwe D. Treuner, Hermann Breuer