The Nitrogen Is Part Of A Substituent Which Contains Additional Nonionically Bonded Nitrogen Patents (Class 546/106)
  • Patent number: 5312820
    Abstract: Carbamoyl and oxycarbonyl derivatives of biphenylmethylamines of structure I are angiotensin-II antagonists with balanced AT.sub.1 and AT.sub.2 activity useful in the treatment of hypertension and related disorders and ocular hypertension. ##STR1## where X is --O-- or --N(R.sup.7)--.
    Type: Grant
    Filed: July 17, 1992
    Date of Patent: May 17, 1994
    Assignee: Merck & Co., Inc.
    Inventors: Wallace T. Ashton, Linda L. Chang, William J. Greenlee, Steven M. Hutchins, Ralph A. Rivero
  • Patent number: 5294715
    Abstract: Hypoxia selective cytotoxins of the general formula ##STR1## wherein n is from 1 to 5, and NO.sub.2 is in at least one of the 2, 4 or 5-positions of the imidazole. Such compounds have utility as radiosensitizers and chemosensitizers.
    Type: Grant
    Filed: February 1, 1991
    Date of Patent: March 15, 1994
    Assignee: University of Pittsburgh
    Inventors: Maria Papadopoulou-Rosenzweig, William D. Bloomer, William D. Bloomer
  • Patent number: 5204348
    Abstract: Novel heterocyclic compounds, which are represented by the following general formula, useful as anticancer drug potentiaters having a potentiating effect on the incorporation of anticancer drugs into cancer cells, the compounds each synthesized by, for example, reacting a epoxy compound obtained by reacting a heterocyclic compound with an epihalogenohydrin, with an amine derivative.
    Type: Grant
    Filed: December 3, 1991
    Date of Patent: April 20, 1993
    Assignee: Mitsui Toatsu Chemicals Inc.
    Inventors: Nobuyuki Fukazawa, Makoto Odate, Tsuneji Suzuki, Kengo Otsuka, Takashi Tsuruo, Wakao Sato
  • Patent number: 5120745
    Abstract: This invention relates to 1-dimethylcarbamoyl-3-substituted-5-substituted-1H-1,2,4-triazoles of the formula ##STR1## wherein the substituents are as defined herein, compositions containing those compounds and methods of use.
    Type: Grant
    Filed: September 27, 1990
    Date of Patent: June 9, 1992
    Assignee: Shell Internationale Research Maatschappij B.V.
    Inventors: Richard M. Jacobson, Luong T. Nguyen, Muthuvelu Thirugnanam
  • Patent number: 5100904
    Abstract: A novel prolinal derivatives of the general formula: ##STR1## [wherein A represents alkylene or alkenylene group of from 1 to 8 carbon atom(s) or a saturated hydrocarbon ring of from 3 to 7 carbon atoms,R represents hydrogen atom, phenyl group, benzyl group, alkyl group of from 1 to 8 carbon atom(s) or cycloalkyl group of from 3 to 7 carbon atoms,B represents alkylene group of from 1 to 8 atom(s) unsubstituted or substituted by phenyl group or benzyl group, or a single bond,D represents carbocyclic or heterocyclic ring unsubstituted or substituted by from one to three of halogen atom, alkyl or alkoxy group of from 1 to 4 carbon atom(s), nitro group or trifluoromethyl group.]possess inhibitory activity on prolyl endopeptidase, and therefore are useful for treating and/or preventing agent as a amnesia.
    Type: Grant
    Filed: June 5, 1990
    Date of Patent: March 31, 1992
    Assignee: Ono Pharmaceutical Co., Ltd.
    Inventors: Masaaki Toda, Shuichi Ohuchida, Hiroyuki Ohno
  • Patent number: 5089615
    Abstract: There are described compounds of the formula ##STR1## where X is hydrogen, loweralkyl, loweralkoxy or halogen;R when present is hydrogen, loweralkyl or aryloweralkyl;R.sub.1 is hydrogen, loweralkyl or arylloweralkyl; andR.sub.2 when present is hydrogen or loweralkyl;which compounds are useful for alleviating various memory dysfunctions characterized by a decreased cholinergic function such Alzheimer's disease.
    Type: Grant
    Filed: January 11, 1991
    Date of Patent: February 18, 1992
    Assignee: Hoechst-Roussel Pharmaceuticals Inc.
    Inventors: Lawrence L. Martin, Joseph F. Payack, Helen H. Ong
  • Patent number: 4999358
    Abstract: There are described compounds of the formula, ##STR1## where X is hydrogen, loweralkyl, loweralkoxy or halogen;R when present is hydrogen, loweralkyl or arylloweralkyl;R.sub.1 is hydrogen, loweralkyl or arylloweralkyl; andR.sub.2 when present is hydrogen or loweralkyl;which compounds are useful for alleviating various memory dysfunctions characterized by a decreased cholinergic function such Alzheimer's disease.
    Type: Grant
    Filed: June 26, 1989
    Date of Patent: March 12, 1991
    Assignee: Hoechst-Roussel Pharmaceuticals Inc.
    Inventors: Lawrence L. Martin, Joseph F. Payack, Helen H. Ong
  • Patent number: 4985430
    Abstract: There are disclosed a 9-acylamino-tetrahydroacridine derivative represented by the following formula (I): ##STR1## wherein R ##STR2## are as defined in the specification, its optical antipode or pharmaceutically acceptable acid addition salt thereof and a memory enhancing agent containing the same as an active ingredient.
    Type: Grant
    Filed: December 2, 1988
    Date of Patent: January 15, 1991
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Shuji Morita, Ken-Ichi Saito, Kunihiro Ninomiya, Akihiro Tobe, Issei Nitta, Mamoru Sugano
  • Patent number: 4952589
    Abstract: This invention relates to aminoalkylphenoxyalkyl substituted heterocycles. These compounds antagonize the action of histamine on histamine H.sub.2 -receptors in the brain. A compound of the invention is 2-[3-[3-(piperidinomethyl)phenoxy]propylamino]benzthiazole.
    Type: Grant
    Filed: June 3, 1987
    Date of Patent: August 28, 1990
    Assignee: Smith Kline & French Laboratories Limited
    Inventors: Thomas H. Brown, Robert C. Mitchell, Ian R. Smith, Rodney C. Young
  • Patent number: 4916135
    Abstract: There are described compounds of the formula ##STR1## where --R is ##STR2## --R.sub.3 and R.sub.3 being independently --H, loweralkyl, --CHO, --CH.dbd.CH.sub.2, --CH.dbd.CH--loweralkyl, --CH.dbd.CHCO.sub.2 C.sub.2 H.sub.5, --CH.sub.2 N(C.sub.2 H.sub.5).sub.2 or ##STR3## --R.sub.1 when existent is --H, loweralkyl, --CH.sub.2 C.tbd.CH, ##STR4## R.sub.5 being methyl or phenyl optionally mono-substituted with loweralkyl or loweralkoxy;--R.sub.2 when existent is loweralkyl or --CH.sub.2 C.tbd.CH;--X is --H, loweralkyl, loweralkoxy, halogen or trifluoromethyl; and the two --Y groups when existent are both --H, or combine to constitute --(CH.sub.2).sub.4 --;which compounds are useful as analgesic agents, and for treating various memory dysfunctions characterized by decreased cholinergic function such as Alzheimer's disease.
    Type: Grant
    Filed: May 8, 1989
    Date of Patent: April 10, 1990
    Assignee: Hoechst Roussel Pharmaceuticals Inc.
    Inventors: Richard C. Effland, Joseph T. Klein, Larry Davis, Gordon E. Olsen
  • Patent number: 4851536
    Abstract: There are disclosed compounds of the formula ##STR1## wherein X is O, S, SO, SO.sub.2 or CR.sup.1 R.sup.2 ;R.sup.1 and R.sup.2 are each independently hydrogen, lower alkyl, carboxyl, lower alkoxy carbonyl, lower cycloalkyl, phenyl, naphthyl, pyridyl, quinolinyl, pyrazinyl, pyridinyl, pyridazinyl, pyrimidinyl, quinoxalinyl, quinazolinyl or any of the foregoing aryl or hetaryl substituents substituted with halo, lower alkyl, lower alkyl carbonyl, benzoyl, COOR.sup.3, OR.sup.3, N(R.sup.3).sub.2, CON(R.sup.3).sub.2, SO.sub.3 R.sup.3, SO.sub.2 N(R.sup.3).sub.2, phenylsulfonyl, lower alkyl sulfonyl, cyano, nitro or trifluoromethyl;R.sup.3 is hydrogen, lower alkyl or phenyl;R.sup.4 is halo, morpholino, 4-methylpiperazino, R.sup.5 NNHR.sup.6,R.sup.5 NCH.sub.2 CH.sub.2 OCH.sub.3, or ##STR2## R.sup.5 is hydrogen or lower alkyl; R.sup.6 is hydrogen, lower alkyl, lower alkanoyl, lower cycloalkyl or phenyl; andR.sup.7 and R.sup.
    Type: Grant
    Filed: April 20, 1988
    Date of Patent: July 25, 1989
    Assignee: American Home Products Corporation
    Inventors: Jerauld S. Skotnicki, Steven C. Gilman
  • Patent number: 4839364
    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: January 28, 1987
    Date of Patent: June 13, 1989
    Assignee: Hoechst-Roussel Pharmaceuticals, Inc.
    Inventors: Gregory M. Shutske, Frank A. Pierrat
  • Patent number: 4834769
    Abstract: Dye compositions containing (a) at least one blue sulpho group-containing triphendioxazine dye and (b) at least one blue sulpho group-containing anthraquinone dye and preferably (c) lignine sulphonic acid or a salt of it and optionally (d) a non-ionic blending agent are outstandingly suitable for the level and fast dyeing of leather substrates.
    Type: Grant
    Filed: December 8, 1987
    Date of Patent: May 30, 1989
    Assignee: Sandoz Ltd.
    Inventors: Michel Dien, Herbert Holliger
  • Patent number: 4824472
    Abstract: Novel herbicidal 1-cyclyl or polycyclyl substituted 1H-imidazole-5-carboxylic acid derivatives, compositions containing these compounds as active ingredients, and a method for controlling weeds, preferably selectively in crops of useful plants. Processes for making these novel compounds.
    Type: Grant
    Filed: December 23, 1987
    Date of Patent: April 25, 1989
    Assignee: Janssen Pharmaceutica N.V.
    Inventors: Guy R. E. Van Lommen, Victor Sipido, Wim G. Verschueren, William R. Lutz
  • Patent number: 4813998
    Abstract: Novel herbicidal 1-heterocyclyl-1H-imidazole-5-carboxylic acid derivatives, compositions containing these compounds as active ingredients, and a method for controlling weeds, preferably selectively in crops of useful plants. Further the invention also relates to a process for making these novel compounds.
    Type: Grant
    Filed: August 24, 1987
    Date of Patent: March 21, 1989
    Assignee: Janssen Pharmaceutica N.V.
    Inventors: Guy R. E. Van Lommen, William R. Lutz, Jozef F. E. Van Gestel
  • Patent number: 4711889
    Abstract: The invention relates to acridanone derivatives of the formula ##STR1## wherein the dotted line is an optional bond, R.sup.1 is hydrogen, halogen or nitro,R.sup.2 is hydrogen or lower alkyl,one of R.sup.3 and R.sup.4 is hydrogen or lower alkyl and the other together with R is an additional bond,A is lower alkylene,R.sup.5 is a 5-membered nitrogen-containing, optionally lower alkyl-substituted aromatic heterocycle, amino or the group ##STR2## the symbol is a 5- or 6-membered, optionally lower alkyl-substituted saturated heterocycle which can contain as a ring member oxygen or sulfur or the group >NH or >N(B).sub.n --A.sup.1 --R.sup.6, B is the group --CO--, --COO-- or --SO.sub.2 --, n is the number 0 or 1, A.sup.1 is lower alkylene, R.sup.6 is hydrogen, amino, lower alkylamino or di(lower alkyl)amino and R.sup.7 is hydrogen or lower alkyl, and pharmaceutically acceptable acid addition salts thereof, their preparation and pharmaceutical compositions based thereon.
    Type: Grant
    Filed: July 18, 1986
    Date of Patent: December 8, 1987
    Assignee: Hoffman-La Roche Inc.
    Inventors: Urs Brombacher, Helmut Link, Marc Montavon
  • Patent number: 4704397
    Abstract: Pharmaceutical salts of 4'-(9-acridinylamino)--methanesulfon-m-anisidide, methods for their preparation and use of said salts in the form of pharmaceutical compositions as antineoplastic agents.
    Type: Grant
    Filed: September 16, 1981
    Date of Patent: November 3, 1987
    Assignee: Warner-Lambert Company
    Inventors: James R. Fisher, Charles P. Kulier
  • 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: 4663458
    Abstract: This invention relates to novel compositions of the antitumor agent [4'-9-(acridinylamino) methanesulfon-m-anisidide] (m-AMSA). The m-AMSA lactate salts in combination with Tween-80 provide a highly stable, ready to use aqueous product.
    Type: Grant
    Filed: December 9, 1985
    Date of Patent: May 5, 1987
    Assignee: Bristol-Myers Company
    Inventor: Murray A. Kaplan
  • Patent number: 4603125
    Abstract: Compounds represented by the general formula (I): ##STR1## in which R.sub.1 represents ##STR2## A and B each represent H or a lower alkane optionally substituted with amino and/or hydroxyl functions, except that A and B are not both H; R.sub.3 represents H, OCH.sub.3, CH.sub.3, halogen, NH.sub.2, NO.sub.2, NHCH.sub.3, N.sub.3 (CH.sub.3).sub.2, N.sub.3, NHCOCH.sub.3, NHCOOCH.sub.3, N(CH.sub.3)COOCH.sub.3, CONH.sub.2 or CONHCH.sub.3 ; R.sub.4 represents H, alkyl, O-alkyl, CONH.sub.2, CONHCH.sub.3 or CONHCH.sub.2 CONHCH.sub.3, except that R.sub.3 and R.sub.4 taken together can represent --C.dbd.CH--CH.dbd.N--; R.sub.5 represents H, alkyl, O-alkyl, CONH.sub.2, CONHCH.sub.3 or CONH.sub.2 CH.sub.2 CONHCH.sub.3 ; R.sub.6 represents lower alkyl; R.sub.7 represents CH.sub.3 or C.sub.6 H.sub.5 (phenyl); R.sub.8 represents lower alkyl or C.sub.6 H.sub.5 (phenyl); R.sub.9 represents H, NHCOCH.sub.3, NH.sub.2 or N.dbd.CHN(CH.sub.3).sub.2 ; and R.sub.10 represents H or NH.sub.
    Type: Grant
    Filed: November 14, 1983
    Date of Patent: July 29, 1986
    Assignee: Development Finance Corporation of New Zealand
    Inventors: Graham J. Atwell, Bruce C. Baguley, William A. Denny, Gordon W. Rewcastle
  • Patent number: 4590277
    Abstract: 4-Carboxamidoacridine compounds represented by the general formula (I), ##STR1## where R.sub.1 represents H, CH.sub.3 or NHR.sub.3, where R.sub.3 is H, COCH.sub.3, SO.sub.2 CH.sub.3, COPh, SO.sub.2 Ph or lower alkyl optionally substituted with hydroxyl and/or amino functions;R.sub.2 represents H or up to two of the groups CH.sub.3, OCH.sub.3, halogen, CF.sub.3, NO.sub.2, NH.sub.2, NHCOCH.sub.3, and NHCOOCH.sub.3 placed at positions 1-3 or 5-8;Y represents C(NH)NH.sub.2, NHC(NH)NH.sub.2, or NR.sub.4 R.sub.5, where each of R.sub.4 and R.sub.5 is H or lower alkyl optionally substituted with hydroxyl and/or amino functions; andx is from 2 to 6,and the acid addition salts thereof, possess antibacterial and antitumor properties.
    Type: Grant
    Filed: June 21, 1983
    Date of Patent: May 20, 1986
    Assignee: Development Finance Corporation of New Zealand
    Inventors: Graham J. Atwell, Bruce C. Baguley, William A. Denny, Gordon W. Rewcastle
  • Patent number: 4575509
    Abstract: This invention concerns novel water-soluble salts and compositions of the antitumor agent 4'-(9-acridinylamino) methanesulfon-m-anisidide (m-AMSA). More particularly, there are provided (1) the mono- and dipyroglutamate salts of m-AMSA and (2) compositions of m-AMSA with pyroglutamic acid. The novel salts and compositions provided enable m-AMSA to be administered as an aqueous solution without the necessity of using dimethylacetamide as a pharmaceutical vehicle.
    Type: Grant
    Filed: July 18, 1984
    Date of Patent: March 11, 1986
    Assignee: Bristol-Myers Company
    Inventors: Jivn-Ren Chen, Edward C. Shinal
  • Patent number: 4575553
    Abstract: The compounds are of the class of 9-anilinoacridines, useful as antitumor agents and are analogs of m-AMSA. These compounds have the formula ##STR1## in which R.sup.1 is Br, Cl or CH.sub.3, and R.sup.2 is CH.sub.2 NHCH.sub.3, CH.sub.2 N(CHO)CH.sub.3 or CH.sub.2 NHCHO. Intermediate 3-substituted-9(10H)acridone-5-carboxylic acids are prepared by converting diphenylaminedicarboxylic acids via acyl chloride to dipiperidides, purifying the dipiperidides, treating said dipiperidides with phosphorous oxychloride in an inert organic solvent at a temperature in the range of about 70.degree. C. to 110.degree. C. to yield 9-acridine, subjecting said 9-acridine to mild acid hydroylsis to yield 9-acridone and thereafter hydroylzing said 9-acridones to the acid product.
    Type: Grant
    Filed: June 18, 1984
    Date of Patent: March 11, 1986
    Assignee: Bristol-Myers Company
    Inventors: Gerry Kavadias, Terrance W. Doyle, Elizabeth Janik, Richard A. Partyka
  • Patent number: 4544659
    Abstract: Acridanone derivatives of the formula ##STR1## wherein the dotted line is an optional bond, R.sup.1 is hydrogen, halogen or nitro, R.sup.2 is hydrogen or lower alkyl, one of the substituents R.sup.3 and R.sup.4 is hydrogen or lower alkyl and the other together with R is an additional bond and R.sup.5 is hydrogen, lower alkyl, lower alkenyl, lower alkynyl or lower alkyl substituted by halogen or lower alkoxy,and pharmaceutically acceptable acid addition salts thereof, processes for their preparation and pharmaceutical compositions based thereon, are described. The compounds of formula I are useful as schistosomicidal agents.
    Type: Grant
    Filed: November 15, 1983
    Date of Patent: October 1, 1985
    Assignee: Hoffman-La Roche Inc.
    Inventors: Urs Brombacher, Marc Montavon, Hermann Bretschneider, Joachim Schantl, Wolfgang Turk
  • Patent number: 4472582
    Abstract: 3,5-Disubstituted-4'-(9-acridinylamino)-methane-sulfon-m-anisidide compounds represented by the general formula ##STR1## in which R.sup.2 and R.sup.3 represent, respectively, --CH.sub.3 and --CONHCH.sub.3, --CH.sub.3 and --CONHCH.sub.2 CONH.sub.2, --Cl and --CONHCH.sub.2 CONH.sub.2, --CONHCH.sub.3 and --CH.sub.3 ; and acid addition salts thereof have unexpectedly high antitumor activity in leukemic animals and low or no direct mutagenicity.
    Type: Grant
    Filed: June 7, 1982
    Date of Patent: September 18, 1984
    Assignee: Development Finance Corporation of New Zealand
    Inventors: Bruce F. Cain, deceased, Graham J. Atwell, Bruce C. Baguley, William A. Denny
  • Patent number: 4399283
    Abstract: Pharmaceutical salts of 4'-(9-acridinylamino)-methanesulfon-m-anisidide, methods for their preparation and use of said salts in the form of pharmaceutical compositions as antineoplastic agents.
    Type: Grant
    Filed: September 16, 1981
    Date of Patent: August 16, 1983
    Assignee: Warner Lambert Company
    Inventors: James R. Fisher, Charles P. Kulier
  • Patent number: 4366318
    Abstract: The compound 4'-(9-[4-[N-methyl-carboxamido]-5-methyl]acridinylamino)methanesulphon-m-a nisidide and acid addition salts thereof have antitumor properties.
    Type: Grant
    Filed: April 27, 1981
    Date of Patent: December 28, 1982
    Assignee: Development Finance Corporation of New Zealand
    Inventors: Bruce F. Cain, deceased, Graham J. Atwell
  • Patent number: 4335244
    Abstract: This invention concerns three particular crystalline monolactate salts of the antitumor agent 4'-(9-acridinylamino)methanesulfon-m-anisidide. The salts are characterized in having unexpectedly high water-solubility.
    Type: Grant
    Filed: May 23, 1980
    Date of Patent: June 15, 1982
    Assignee: Bristol-Myers Company
    Inventors: Murray A. Kaplan, Alphonse P. Granatek
  • Patent number: 4335226
    Abstract: Adsorbents are provided for the affinity-specific separation of macromolecular materials, particularly biopolymers, the adsorbents comprising a polymeric carrier on to which an affine residue for the macromolecular material is covalently bound, either directly or via polymeric spacer. Preferred affine residue is comprised of a specific complex formers which are base-specific and/or structure specific for the macromolecular material. The invention also provides novel complex formers comprising a certain dyestuff residues and processes for their preparation.
    Type: Grant
    Filed: February 24, 1978
    Date of Patent: June 15, 1982
    Assignee: Boehringer Mannheim GmbH
    Inventors: Werner Muller, Hans Bunemann
  • Patent number: 4322424
    Abstract: The invention concerns a crystalline monogluconate salt of the antitumor agent 4'-(9-acridinylamino)-methanesulfon-m-anisidide and compositions comprising mixtures of such salt with an organic acid selected from gluconic acid, gluconolactone or mixtures thereof. The novel salt and compositions are characterized in having unexpectedly high water-solubility.
    Type: Grant
    Filed: October 17, 1980
    Date of Patent: March 30, 1982
    Assignee: Bristol-Myers Company
    Inventors: Daniel Bouzard, Claude Perol, Jacques Stemer, Abraham Weber, Edmund S. Granatek
  • Patent number: 4258191
    Abstract: A multi-step method of producing the compound methanesulfon-m-anisidide, 4'-(9-acridinylamino)-, acetate (VII), which may be in free base form and designated NSC 249992, also known as AMSA. This compound is produced by an elegant process from a starting material, 4-butyrylamino-3-methoxy-nitrobenzene, which is later transformed to methanesulfon-m-anisidide, 4'-amino- (IV) and is coupled or joined to 9-chloro-acridine, producing the chloride salt which is later converted to the acetate.
    Type: Grant
    Filed: March 29, 1979
    Date of Patent: March 24, 1981
    Assignee: The United States of America as represented by the Secretary of Health, Education and Welfare
    Inventors: Henryk Dubicki, Jack L. Parsons, Fred W. Starks
  • Patent number: 4150231
    Abstract: 1-Nitro-9-dialkylaminoisoalkylaminoacridines or their salts of the formula: ##STR1## wherein R is lower alkyl, such as methyl, ethyl, R.sup.1 is a hydrogen atom or methyl, R.sup.2 is the same as R.sup.1, with the proviso that R.sup.1 is not equal to R.sup.2 and n = 0 or 2, and their preparation is described. These compounds are useful as anti-neoplastic agents.
    Type: Grant
    Filed: March 25, 1977
    Date of Patent: April 17, 1979
    Assignee: Politechnika Gdanska
    Inventors: Andrzej Ledochowski, Jerzy Gieldanowski, Czeslaw Radzikowski, Cecylia Kwasniewska-Rokicinska, Barbara Wysocka-Skrzela, Lucyna Sawinska, Mieczyslaw Medon
  • Patent number: 4139531
    Abstract: 1-Nitro-9-alkylaminoalkylaminoacridins and their salts, as well as a method for obtaining these compounds, is described. The 1-nitro-9-alkylaminoalkylaminoacridines have the formula 1, ##STR1## wherein R is methyl, ethyl, propyl, isopropyl, butyl, isobutyl, isopentyl, benzyl or cyclohexyl, whereas n is equal to 2 or 3. The salts are those derived from mineral acids or organic acids. These compounds have anti-neoplastic activity.
    Type: Grant
    Filed: February 23, 1977
    Date of Patent: February 13, 1979
    Assignee: Politechnika Gdanska
    Inventors: Andrzej Ledochowski, Jerzy Gieldanowski, Czeslaw Radzikowski, Barbara Horowska, Cecylia Kwasniewska-Rokicinska, Barbara Wysocka-Skrzela, Lucyna Sawinska, Mieczyslaw Medon
  • Patent number: 4126620
    Abstract: 2,4,5,6-Tetrahydrocyclopenta[c]pyrrole-4-carboxamide and 4-thiocarboxamide derivatives useful as antisecretory and anti-ulcer agents are prepared by hydrolysis or thiohydrolysis of the corresponding 2,4,5,6-tetrahydrocyclopenta[c]pyrrole-4-carbonitriles or, in the case of the thiocarboxamides, by reaction of the 4-carboxamide with phosphorus pentasulfide.
    Type: Grant
    Filed: February 25, 1977
    Date of Patent: November 21, 1978
    Assignee: Sterling Drug Inc.
    Inventors: Malcolm R. Bell, Rudolf Oesterlin