Patents Examined by D. Rivers
  • Patent number: 4730043
    Abstract: Alkylpyrimidines are dealkylated to the corresponding pyrimidines by contacting with an oxidation catalyst containing one or more oxides of at least one of the elements of the group consisting of Bi, Mo and V in the presence of water and oxygen in the gas phase at a temperature of 300.degree.-450.degree. C.
    Type: Grant
    Filed: December 23, 1985
    Date of Patent: March 8, 1988
    Assignee: Stamicarbon B.V. Licensing Subsidary of DSM
    Inventor: Roland E. van der Stoel
  • Patent number: 4708959
    Abstract: A 4,5-trimethylene-4-isothiazoline-3-one of the formula ##STR1## wherein R.sub.1 represents (i) hydrogen, (ii) alkyl having 1-12 carbon atoms, (iii) alkyl having 2 or 3 carbon atoms and substituted by one or two hydroxy groups, (iv) alkenyl having 3 to 6 carbon atoms, (v) ##STR2## wherein n is 0 or 1, m is 1 or 2, R.sup.1 is hydrogen or lower alkyl having from 1 to 5 carbon atoms and R.sub.2 is hydrogen, lower alkyl, nitro, trifluoromethyl or halogen, (vi) cycloalkyl having 3 to 6 carbon atoms and (vii) ##STR3## wherein R.sub.3 is hydrogen, alkyl having 1-12 carbon atoms or ##STR4## defined above, or the salt thereof with a mineral or organic acid. These compounds are useful as bactericides or fungicides.
    Type: Grant
    Filed: July 27, 1983
    Date of Patent: November 24, 1987
    Assignee: Centre International de Recherches Dermatologiques (C.I.R.D.)
    Inventors: Braham Shroot, Jean Maignan
  • Patent number: 4703043
    Abstract: Phosphonyl hydroxyacyl amino acids of the formula ##STR1## wherein X is a substituted or unsubstituted imino or amino acid or ester. These compounds possess angiotensin converting enzyme activity and are thus useful as hypotensive agents.
    Type: Grant
    Filed: December 16, 1985
    Date of Patent: October 27, 1987
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Donald S. Karanewsky, Edward W. Petrillo, Jr.
  • Patent number: 4695573
    Abstract: There are disclosed compounds having the formula ##STR1## wherein n is 1, 2 or 3; X is hydrogen, loweralkyl, loweralkoxy, halogen, hydroxy, nitro, trifluoromethyl, NHCOR.sub.2 where R.sub.2 is loweralkyl, or NR.sub.3 R.sub.4 where R.sub.3 and R.sub.4 are independently hydrogen or loweralkyl; R is hydrogen or loweralkyl; R.sub.1 is hydrogen, loweralkyl, diloweralkylaminoloweralkyl, arylloweralkyl, diarylloweralkyl, furylloweralkyl, thienylloweralkyl, oxygen-bridged arylloweralkyl, oxygen-bridged diarylloweralkyl, oxygen-bridged furylloweralkyl or oxygen-bridged thienylloweralkyl; Y is C.dbd.O or CR.sub.5 OH where R.sub.5 is hydrogen or loweralkyl; Z is CH.sub.2 or C.dbd.CR.sub.6 R.sub.7 where R.sub.6 and R.sub.7 are independently hydrogen or loweralkyl; or Y and Z taken together is CR.sub.5 .dbd.CH where CR.sub.
    Type: Grant
    Filed: October 1, 1985
    Date of Patent: September 22, 1987
    Assignee: Hoechst-Roussel Pharmaceuticals Inc.
    Inventors: Gregory M. Shutske, Frank A. Pierrat
  • Patent number: 4560680
    Abstract: Compounds of the structure ##STR1## are provided which are inhibitors of angiotensin converting enzyme and are useful in the treatment of hypertension.
    Type: Grant
    Filed: May 10, 1984
    Date of Patent: December 24, 1985
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Denis E. Ryono, Edward W. Petrillo, Jr.
  • Patent number: 4451464
    Abstract: Tranquilizers are of the formula: ##STR1## wherein R.degree. is alkyl of 1 to 8 carbon atoms, andn is 1 or 2.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: May 29, 1984
    Assignee: Sandoz, Inc.
    Inventors: Goetz E. Hardtmann, William J. Houlihan
  • Patent number: 4310698
    Abstract: Fluorochemical surfactants of the formula ##STR1## wherein R.sub.f is perfluoroalkyl of 4-20 carbon atoms or perfluoroalkoxyperfluoroalkyl of 4-20 carbon atoms;A is straight or branched chain alkylene of 1-10 carbon atoms which is unsubstituted or substituted by halo;n is 1 to 50;R.sub.1 is hydrogen or alkyl of 1-4 carbon atoms and R.sub.2 is hydrogen or alkyl of 1-4 carbon atoms.
    Type: Grant
    Filed: July 7, 1980
    Date of Patent: January 12, 1982
    Assignee: Ciba-Geigy Corporation
    Inventor: Thomas W. Cooke
  • Patent number: 4279817
    Abstract: A concerted process for the synthesis of a dimer consisting of an indole unit and a dihydroindole unit possessing natural stereochemistry which comprises:(a) forming an N-oxide intermediate from said indole unit;(b) treating said N-oxide indole intermediate in the presence of acetic anhydride or halogenated derivative thereof to effect a Polonovski-type fragmentation reaction;(c) without isolating the N-oxide indole intermediate and at a temperature of about -10.degree. C. to +10.degree. C., coupling said reaction product with a dihydroindole unit in the presence of acetic anhydride or a halogenated derivative thereof at a low temperature of about -10.degree. C. to +10.degree. C. under inert conditions; and(d) subsequently reducing the immonium nitrogen on the indole unit by reacting with aqueous alkali metal borohydride to produce a dimer.
    Type: Grant
    Filed: May 30, 1975
    Date of Patent: July 21, 1981
    Assignee: The United States of America as represented by the Department of Health & Human Services
    Inventor: James P. Kutney
  • Patent number: 4247555
    Abstract: Certain 4,9-dihydro-9-oxo-N-1H-tetrazol-5-yl-pyrazolo[5,1-b]quinazoline-2-carboxam ides are disclosed. These compounds prevent the allergic response in mammals.
    Type: Grant
    Filed: January 11, 1980
    Date of Patent: January 27, 1981
    Assignee: Warner-Lambert Company
    Inventors: Jagadish C. Sircar, Thomas Capiris
  • Patent number: 4232026
    Abstract: Certain 2- and/or 9- phenylalkyl-5,11-dimethyl-5,11-diazaditwistane compounds bind to opiate receptor sites and have central nervous system activities exemplified by analgesia.
    Type: Grant
    Filed: July 20, 1978
    Date of Patent: November 4, 1980
    Assignee: Merck & Co., Inc.
    Inventor: Jan ten Broeke
  • Patent number: 4232028
    Abstract: Disclosed is 17-cyclobutylmethyl-4,5.alpha.-epoxy-3-hydroxy-14-methoxy-8.alpha.-methylm orphinan-6-one characterized by the formula: ##STR1## This compound is useful as a mixed analgesic/narcotic antagonist.
    Type: Grant
    Filed: June 18, 1979
    Date of Patent: November 4, 1980
    Assignee: Sisa, Incorporated
    Inventors: Raj K. Razdan, Anil C. Ghosh
  • Patent number: 4230712
    Abstract: Disclosed are 7-methyl, 8.beta.-lower alkyl and 7 methyl-8-lower alkyl substituted B/C Cis or Trans morphinan-6-one compounds characterized by the structural formula: ##STR1## Specific compounds, included within the scope of the foregoing general formula wherein R.sub.1 is H or methyl, R.sub.2 is cyclopropylmethyl or cyclobutylmethyl, R.sub.3 is H, methyl, ethyl or n-propyl and R.sub.4 is H or methyl are useful as mixed analgesics/narcotic antagonists.
    Type: Grant
    Filed: May 21, 1979
    Date of Patent: October 28, 1980
    Assignee: Miles Laboratories, Inc.
    Inventors: Michael P. Kotick, Robert N. Schut, Joseph O. Polazzi, David L. Leland
  • Patent number: 4198512
    Abstract: Novel 1-oxo-1,2-dihydroisoquinoline compounds of the formula ##STR1## wherein R.sub.1 represents a lower alkyl group or a phenyl lower alkyl group; R.sub.2 represents a lower alkyl group; R.sub.3 represents a hydrogen atom, a lower alkanoyl group, a lower alkyl group or a hydroxy lower alkyl group; and n is 0, 1 or 2 and the pharmacologically acceptable non-toxic salts thereof.The compounds of this invention are strong analgesic anti-inflammatory agents.
    Type: Grant
    Filed: July 17, 1978
    Date of Patent: April 15, 1980
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Kazuo Kubo, Noriki Ito, Isao Souzu, Yasuo Isomura, Hiroshige Homma
  • Patent number: 4168304
    Abstract: 4-Substituted-pyrimidin-6-yl (thiono)-phosphoric (phosphonic) acid esters or ester-amides of the formula ##STR1## in which R represents hydrogen, alkyl, alkoxy, alkylthio or alkylamino,R.sup.1 represents halogen, alkoxy, alkylthio or alkylamino,R.sup.2 represents alkyl, alkoxy, alkylamino or phenyl,R.sup.3 represents alkyl andX and Y, which may be identical or different, represent oxygen or sulphur,Which possess arthropodicidal and nematicidal properties.
    Type: Grant
    Filed: January 12, 1978
    Date of Patent: September 18, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Fritz Maurer, Hans-Jochem Riebel, Rolf Schroder, Ingeborg Hammann, Wolfgang Behrenz, Bernhard Homeyer, Wilhelm Stendel
  • Patent number: 4159271
    Abstract: Indoline derivatives having the formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are defined below are produced by a cyclization of 2-halogenophenethylamine compounds having the formula ##STR2## wherein R.sub.1 represents hydrogen atom, a lower alkyl, a lower alkoxyl, nitro or hydroxyl group; R.sub.2 represents hydrogen atom; a lower alkoxyl or nitro group; R.sub.3 represents hydrogen atom or a lower alkyl group and at least one of R.sub.1, R.sub.2 and R.sub.3 is a lower alkyl, a lower alkoxyl or nitro group; and X represents a halogen atom, in the presence of a copper type catalyst and ammonia.
    Type: Grant
    Filed: January 18, 1978
    Date of Patent: June 26, 1979
    Assignee: Ihara Chemical Industry Co., Ltd.
    Inventors: Hironobu Sano, deceased, Sataro Okamura, deceased, by Eijiro Okamura, legal representative, Yoshiki Nakayama, Kazunari Hirao
  • Patent number: 4077959
    Abstract: Novel amidine compounds selected from the group consisting of bis-pyrrolinyl derivatives of phenothiazines, phenoxazines and acridans are obtained by reacting a phenothiazine, phenoxazine or acridan with a pyrrolidinone in the presence of phosphorus oxychloride. The phenothiazine, phenoxazine, or acridan can also be alkylated with 2-chloro-1-(1-pyrrolin-2-yl)-2-pyrroline to provide compounds of the invention. Typical examples of bis-pyrrolinyl derivatives are 2-methoxy-10-[5-methyl-1-(5-methyl-1-pyrrolin-2-yl)-2-pyrrolin-2yl]phenoth iazine, 10-[1-(1-pyrrolin-2-yl)-2-pyrrolin-2-yl]phenoxazine, and 9,9-dimethyl-10-[5-methyl-1-(5-methyl-1-pyrrolin-2-yl)-2-pyrrolin-2-yl]acr idan. The amidine compounds are useful as diuretics, smooth muscle relaxants and antithrombogenic agents.
    Type: Grant
    Filed: December 15, 1975
    Date of Patent: March 7, 1978
    Assignee: Mead Johnson & Company
    Inventors: Yao Hua Wu, Walter G. Lobeck, Jr.
  • Patent number: 4069242
    Abstract: A synergistic catalytic effect is realized in the esterification reaction between an organic carboxylic acid and a vicinal epoxide by using a catalyst system comprising: (a) a compound containing an amino and/or ammonium nitrogen atom, in combination with (b) a soluble compound containing an ionizable atom of iron or chromium.
    Type: Grant
    Filed: September 9, 1971
    Date of Patent: January 17, 1978
    Assignee: The Dow Chemical Company
    Inventor: Arthur E. Gurgiolo