Chalcogen Attached Indirectly To The Five-membered Hetero Ring By Acyclic Nonionic Bonding Patents (Class 548/551)
  • Patent number: 4889953
    Abstract: Compounds of the formula: ##STR1## wherein R.sup.1 is a higher alkyl group which may be substituted; R.sup.2 is a hydrogen, a lower alkyl group which may be substituted, a lower alkanoyl group which may be substituted or a lower alkylthiocarbamoyl group; R.sup.3 is a primary to tertiary amino group or a quaternary ammonium group; and n is 2 or 3, and salts thereof, have antitumor activity and platelet activating factor inhibitory activity.
    Type: Grant
    Filed: July 22, 1987
    Date of Patent: December 26, 1989
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Keizo Inoue, Hiroaki Nomura, Tetsuya Okutani
  • Patent number: 4882359
    Abstract: An azacycloalkane derivative useful for promoting the absorption of a medicine, an absorption promoting agent comprising at least one of the azacycloalkane derivatives as the effective ingredient for promoting the absorption and an external preparation containing the absorption promoting agent, the derivative being represented by the following formula ##STR1## wherein A is --CH.sub.2 -- or --S-- for example, B is sulfur or oxygen, R is --SR" in which R" is an alkyl group or alkylthioalkyl group for example, or --OR" in which R" is as defined above, an alkyl group or substituted amino group, R' is a hydrogen atom, alkyl group or alkyloxy group for example, m is an integer of 0-5 and n is an integer of 1-15.
    Type: Grant
    Filed: November 18, 1987
    Date of Patent: November 21, 1989
    Assignee: Hisamitsu Pharmaceutical Co., Ltd.
    Inventors: Akira Nakagawa, Michinori Sakai
  • Patent number: 4874865
    Abstract: Preparation of substituted lactams Ia to Ic ##STR1## where n is 0 or 1, X is --O--CO--R.sup.1, --O--SO.sub.2 --R.sup.1, --CO--R.sup.2, --CO--O--R.sup.3 or --CO--NR.sup.4 R.sup.5, R.sup.1 is a C.sub.1 -C.sub.8 -radical of a carboxylic or sulfonic acid, R.sup.2 is C.sub.1 -C.sub.8 -alkyl, R.sup.3 is H or alkyl, aryl or aralkyl of not more than 8 carbon atoms, R.sup.4 and R.sup.5 are each H or C.sub.1 -C.sub.4 -alkyl or together form a 5-membered or 6-membered ring, by reacting a lactam II ##STR2## with a vinyl compound IIICH.sub.2 .dbd.CH-Xand a compound IV which forms free radicals to give Ia, and preparation of Ib by hydrolysis of a compound Ia in which X is (--O--CO--R.sup.1) or (--O--SO.sub.2 --R.sup.1), and preparation of Ic by thermolysis of Ib or of a compound Ia in which X is (--O--CO--R.sup.1) or (--O--SO.sub.2 --R.sup.1), and the novel substituted lactams Ia and Ib where X is (--O--CO--R.sup.1) and (--O--SO.sub.2 --R.sup.1).
    Type: Grant
    Filed: June 2, 1988
    Date of Patent: October 17, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Ludwig Wambach, Martin Fischer
  • Patent number: 4864055
    Abstract: A compound represented by the following formula: ##STR1## wherein R is a C.sub.3 -C.sub.24 olefinically unsaturated organic radical having functionality which renders the nitrogen atom electron deficient, the olefinic unsaturation functionality being polymerizable,R.sup.1 is hydrogen or a C.sub.1 -C.sub.4 alkyl radical, orR and R.sup.1 together with the nitrogen atom can form an olefinically unsaturated 5 to 7-member ring which has functionality that renders the nitrogen atom electron deficient and the olefinic unsaturation functionality is polymerizable,R.sup.2 and R.sup.3 are hydrogen, a C.sub.1 -C.sub.4 alkyl or acyl radical, orR.sup.2 and R.sup.3 together are a C.sub.1 -C.sub.4 alkylene group,R.sup.4 is hydrogen or a C.sub.1 -C.sub.4 alkyl, acyl, ester, amide or acid group, andn is an integer from 1 to 10, provided n is not 1 when R is (meth)acryloyl, R.sup.2 and R.sup.3 are methyl and R.sup.1 and R.sup.4 are hydrogen.
    Type: Grant
    Filed: September 3, 1987
    Date of Patent: September 5, 1989
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Robert K. Pinschmidt, Jr., Dale D. Dixon, William F. Burgoyne, Jr.
  • Patent number: 4841078
    Abstract: Bicyclic fused benzenoid compounds of the formula ##STR1## and pharmaceutically acceptable cationic and acid addition salts thereof, where M is O, CH.sub.2 or NR.sub.6 ; R.sub.6 is hydrogen, formyl, carbobenzyloxy or certain carboalkoxyalkyl, alkanoyl, alkyl, aralkyl or aralkylcarbonyl groups;A' is:(1) A where one of A and B is hydrogen such that when A is hydrogen, B is C(R.sub.2 R.sub.3)(CH.sub.2).sub.f Q and f is 1 or 2; when B is hydrogen, A is C(R.sub.2 R.sub.3)(CH.sub.2).sub.f Q and f is 0 or 1, when taken together A and OR.sub.1 form a lactone or certain derivatives thereof;(2) A' is ##STR2## (3) A' is Q.sub.3 ; Q is CO.sub.2 R.sub.7, COR.sub.8, C(OH)R.sub.8 R.sub.9, CN, CONR.sub.12 R.sub.13, CH.sub.2 NR.sub.12 R.sub.13, CH.sub.2 NHCOR.sub.14, CH.sub.2 NHSO.sub.2 R.sub.17 or 5-tetrazoyl;Q.sub.3 is ##STR3## 5-tetrazolyl, CH.sub.2 CONHCOR.sub.7, COOH or certain ester, amide, carboximido or sulfonimido derivatives thereof, CONHOH, CONHCONH.sub.2, or COCH.sub.2 Q.sub.4 where Q.sub.
    Type: Grant
    Filed: August 9, 1984
    Date of Patent: June 20, 1989
    Assignee: Pfizer Inc.
    Inventors: James F. Eggler, Michael R. Johnson, Lawrence Sherman
  • Patent number: 4837337
    Abstract: Disclosed herein is a process for producing a pyrrolidone derivative represent by the general formula (I): ##STR1## wherein R is an organic residue obtained by removing hydroxy radical from a C.sub.1-10 primary alcohol, C.sub.1-10 secondary alcohol or derivative thereof, comprising (1) reacting 2-pyrrolidone with acetaldehyde in the presence of a catalyst, thereby obtaining N-(.alpha.-hydroxyethyl)pyrrolidone, and (2) reacting the thus obtained N-(.alpha.-hydroxyethyl)pyrrolidone with a primary alcohol, a secondary alcohol or a derivative thereof in the presence of an acidic catalyst to obtain the pyrrolidone derivative.
    Type: Grant
    Filed: February 3, 1988
    Date of Patent: June 6, 1989
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Yoshikazu Murao, Masao Miyake
  • Patent number: 4835277
    Abstract: In one embodiment this invention provides a nonlinear optical medium whcih is a transparent film of a thermoplastic polymer composed of recurring monomeric units corresponding to the formula: ##STR1##
    Type: Grant
    Filed: October 5, 1987
    Date of Patent: May 30, 1989
    Assignee: Hoechst Celanese Corporation
    Inventor: Eui W. Choe
  • Patent number: 4833139
    Abstract: There are disclosed compounds of the formula ##STR1## where R.sub.1 is loweralkoxycarbonyl, --CH.sub.2 OH or --CONR.sub.3 R.sub.4, R.sub.3 and R.sub.4 being independently hydrogen, loweralkyl or arylloweralkyl; and R.sub.2 is --CH.sub.2 CH.dbd.CH.sub.2, ##STR2## R.sub.5 and R.sub.6 being independently loweralkyl or alternatively the group -NR.sub.5 R.sub.6 as a whole being ##STR3## R.sub.7 being hydrogen, loweralkyl or arylloweralkyl; which are useful for enhancing cholinergic activity in mammals and hence for the treatment of various memory dysfunctions characterized by decreased cholinergic function such as Alzheimer's disease.
    Type: Grant
    Filed: July 5, 1988
    Date of Patent: May 23, 1989
    Assignee: Hoechst-Roussel Pharmaceuticals, Inc.
    Inventor: Lawrence L. Martin
  • Patent number: 4833164
    Abstract: 2-Substituted-1-naphthols are 5-lipoxygenase inhibitors which make them useful in the treatment of inflammation, obstructive lung diseases and/or psoriasis. Useful 2-substituent groups are alkyls, alkenyls, alkynyls, cycloalkyls, cycloalkenyls, the groups CH.sub.2 --C.tbd.C--(CH.sub.2).sub.m R.sup.5 and CH.dbd.CH--(CH.sub.2).sub.n R.sup.5 (where m is 1-4, n is 0-3 and R.sup.5 includes phenyl, COOR.sup.9, where R.sup.9 is H or alkyl of 1-4 carbons, AR.sup.6 (where A is a methylene chain and R.sup.6 is a variety of groups including Cl, Br, I, CHO, CN, COOR.sup.9, NH.sub.2, SC(NH)NH.sub.2, phenyl, P(O)(OR.sup.9).sub.2, etc.), and CHR.sup.7 R.sup.21 (where R.sup.7 is a variety of aromatic and heterocyclic groups and R.sup.21 is H, optionally substituted phenyl and a variety of heterocyclic groups).
    Type: Grant
    Filed: March 19, 1986
    Date of Patent: May 23, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Douglas G. Batt
  • Patent number: 4831159
    Abstract: A process is disclosed for preparing isomeric aldehydes by contacting N-vinyl-2-pyrrolidinone and synthesis gas in the presence of a rhodium-containing compound with or without additional phosphine ligand and a solvent. The alpha and beta isomeric aldehydes such as 2-N-(2-pyrrolionyl)propanaldehyde and 3-N-(2-pyrrolidonyl)propanaldehyde can be converted to 1,2- or 1,3-diaminopropanes via reductive amination or to alcohol amines via reduction.
    Type: Grant
    Filed: June 20, 1986
    Date of Patent: May 16, 1989
    Assignee: Texaco Inc.
    Inventor: Jiang-Jen Lin
  • Patent number: 4803285
    Abstract: A process for the preparation of a C(3)-C(4)-transconfigurated.gamma.-butyrolactam of the formula (I) ##STR1## in which R.sup.1 represents hydrogen or alkyl, aryl or aralkyl with in each case up to 10 carbon atoms andR.sup.2 and R.sup.3 are identical or different and represent hydrogen, alkyl, aryl, aralkyl, alkoxy, aryloxy or aralkoxy with in each case up to 10 carbon atoms, acyl with up to 18 carbon atoms, trifluoromethyl, trifluoromethoxy, nitro, hydroxyl, halogen, amino, carboxyl, sulpho, dialkylamino with up to 4 carbon atoms in the alkyl groups or acylamino with up to 18 carbon atoms, in the form of their isomers, isomer mixtures, racemates or optical antipodes, comprising oxidizing a compound of the formula (II) ##STR2## in which R.sup.1, R.sup.2 and R.sup.3 have the above-mentioned meanings, in an inert organic solvent in the presence of a base. Such .gamma.-butyrolactams have an antiamnesic action.
    Type: Grant
    Filed: August 27, 1987
    Date of Patent: February 7, 1989
    Assignees: Bayer Aktiengesellschaft & Chinese, Chinese Academy of Medical Sciences
    Inventor: Wolfgang Hartwig
  • Patent number: 4792556
    Abstract: Psoriasis in mammals is relieved by topically administering naphthalenes of the formula: ##STR1## wherein: R.sup.1 and R.sup.2 are the same and are lower alkoxy or optionally substituted phenoxy,R.sup.3 is lower alkyl, lower alkoxy, or halo and m is 0, 1 or 2 or R.sup.3 is optionally substituted phenyl, optionally substituted phenyl lower alkyl, optionally substituted phenyl lower alkoxy, amino, lower alkylamino, lower dialkylamino, cyano, or S(O).sub.n R wherein R is lower alkyl; optionally substituted phenyl; optionally substituted phenyl lower alkyl; or optionally substituted heterocyclic aryl of three to nine ring atoms containing one or two heteroatoms selected from the group consisting of nitrogen, oxygen and sulfur, and the pharmaceutically acceptable acid addition salts thereof; and m is 1 and n is 0, 1 or 2;at least one of X or Y is C(O)W and the other X or Y is different and is hydrogen, C(O)W or R.sup.
    Type: Grant
    Filed: April 28, 1986
    Date of Patent: December 20, 1988
    Assignee: Syntex (U.S.A.) Inc.
    Inventors: D. V. K. Murthy, Michael C. Venuti, John M. Young
  • Patent number: 4792603
    Abstract: A method for producing a polyether-polyamide block copolymer is disclosed, comprising copolymerizing, in the presence of an anionic polymerization catalyst, a lactam and a polyether prepolymer presented by the formula: ##STR1## wherein R.sup.1 is an aliphatic hydrocarbon residual group having 2 to 6 carbon atoms, R.sup.2 is an aliphatic hydrocarbon residual group having 3 to 12 carbon atoms, and n is an integer of 4 to 450. The polyester prepolymer is prepared by reacting a polyoxyalkylene having two terminal hydroxy groups with an N-chlorocarbonyl lactam. The polyether-polyamide block according to the invention has high impact strength and is substantially colorless.
    Type: Grant
    Filed: October 2, 1986
    Date of Patent: December 20, 1988
    Assignee: Sumitomo Chemical Co., Ltd.
    Inventors: Takeo Saegusa, Jiro Horikawa, Masahiro Niwano, Takenobu Kanazawa
  • Patent number: 4786649
    Abstract: Novel 1-thienyl-4-oxoquinoline-3-carboxylic acid compounds of the formula ##STR1## wherein R.sup.1 is an amino (lower) alkyl, R.sup.2 is thienyl, and X is a halogen atom, and a pharmaceutically acceptable salt thereof, said compounds having excellent antimicrobial activity and hence being useful as an antimicrobial agent, and a pharmaceutical composition comprising as an active ingredient said 1-thienyl-4-oxoquinoline-3-carboxylic acid compounds or a pharmaceutically acceptable salt thereof in admixture with a pharmaceutically acceptable diluent or carrier.
    Type: Grant
    Filed: November 13, 1986
    Date of Patent: November 22, 1988
    Assignee: Otsuka Pharmaceutical Company Limited
    Inventors: Hiraki Ueda, Hisashi Miyamoto
  • Patent number: 4766110
    Abstract: Novel inhibitors of angiotensin converting enzyme are disclosed which have the general formula ##STR1## wherein R.sub.1 and/or R.sub.3 form complex amides and imides thereof, R.sub.4 and R.sub.5 form with --N--C-- a 4-6 membered ring structure as described and the other R substituents are selected from a variety of disclosed groups.
    Type: Grant
    Filed: October 31, 1986
    Date of Patent: August 23, 1988
    Inventors: James W. Ryan, Alfred Chung
  • Patent number: 4760152
    Abstract: (1) Pyrrolidonyl acrylate block polymers having the formula ##STR1## wherein n has a value of 1 to 3; X and X' are dissimilar and each is hydrogen or methyl; y and z each have a value of from 1 to 40, except that at least one of y and z is greater than 1 and R is hydrogen or methyl;(2) preparation of said polymers and(3) uses of said polymers.
    Type: Grant
    Filed: March 2, 1987
    Date of Patent: July 26, 1988
    Assignee: GAF Corporation
    Inventors: David J. Tracy, Mohamed M. Hashem, Fulvio J. Vara
  • Patent number: 4751315
    Abstract: A new synthetic route to clausenamide having the formula ##STR1## has been found. It has been found that a compound of the formula ##STR2## can be oxidized to provide the stereochemically correctly configured product, clausenamide. A number of new compounds useful in the total synthesis of clausenamide have also been found. These compounds have the general formula ##STR3## wherein R is ##STR4## and CH.sub.2 OH.
    Type: Grant
    Filed: September 1, 1987
    Date of Patent: June 14, 1988
    Assignees: Bayer Aktiengesellschaft, Chinese Academy of Medical Sciences
    Inventor: Wolfgang Hartwig
  • Patent number: 4731456
    Abstract: A new synthetic route to clausenamide having the formula ##STR1## has been found. It has been found that a compound of the formula ##STR2## can be oxidized to provide the stereochemically correctly configured product, clasuenamide. A number of new compounds useful in the total synthesis of clausenamide have also been found. These compounds have the general formula ##STR3## wherein R is ##STR4## and CH.sub.2 OH.
    Type: Grant
    Filed: October 3, 1986
    Date of Patent: March 15, 1988
    Assignees: Bayer Aktiengesellschaft, Chinese Academy of Medical Sciences
    Inventor: Wolfgang Hartwig
  • Patent number: 4731455
    Abstract: A process for the preparation of a C(3)-C(4)-transconfigurated .gamma.-butyrolactam of the formula (I) ##STR1## in which R.sup.1 represents hydrogen or alkyl, aryl or aralkyl with in each case up to 10 carbon atoms andR.sup.2 and R.sup.3 are identical or different and represent hydrogen, alkyl, aryl, aralkyl, alkoxy, aryloxy or aralkoxy with in each case up to 10 carbon atoms, acyl with up to 18 carbon atoms, trifluoromethyl, trifluoromethoxy, nitro, hydroxyl, halogen, amino, carboxyl, sulpho, dialkylamino with up to 4 carbon atoms in the alkyl groups or acylamino with up to 18 carbon atoms,in the form of their isomers, isomer mixtures, racemates or optical antipodes, comprising oxidizing a compound of the formula (II) ##STR2## in which R.sup.1, R.sup.2 and R.sup.3 have the above-mentioned meanings, in an inert organic solvent in the presence of a base. Such .gamma.-butyrolactams have an antiamnesic action.
    Type: Grant
    Filed: October 1, 1986
    Date of Patent: March 15, 1988
    Assignees: Bayer Aktiengesellschaft, Chinese Academy of Medical Sciences
    Inventor: Wolfgang Hartwig
  • Patent number: 4730050
    Abstract: A derivative of a fibrinolytic enzyme in which the catalytic site on the enzyme which is responsible for fibrinolytic activity is blocked by a human protein attached thereto by way of a reversible linking group.
    Type: Grant
    Filed: April 3, 1987
    Date of Patent: March 8, 1988
    Assignee: Beecham Group p.l.c.
    Inventor: Richard A. G. Smith
  • Patent number: 4692532
    Abstract: Substituted (4-hydroxyphenylthioalkyl) derivatives of the formula ##STR1## are prepared by the reaction of the appropriate ring and hydroxybenzene thiol compounds and are useful stabilizers of organic materials.
    Type: Grant
    Filed: November 23, 1984
    Date of Patent: September 8, 1987
    Assignee: Ciba-Geigy Corporation
    Inventors: John D. Spivack, Ramanathan Ravichandran, Stephen D. Pastor
  • Patent number: 4691026
    Abstract: A compound represented by the following formula: ##STR1## wherein R is a C.sub.3 -C.sub.24 olefinically unsaturated organic radical having functionality which renders the nitrogen atom electron deficient, the olefinic unsaturation functionality being polymerizable,R.sup.1 is hydrogen or a C.sub.1 -C.sub.4 alkyl radical, orR and R.sup.1 together with the nitrogen atom can form an olefinically unsaturated 5 to 7-member ring which has functionality that renders the nitrogen atom electron deficient and the olefinic unsaturation functionality is polymerizable,R.sup.2 and R.sup.3 are hydrogen, a C.sub.1 -C.sub.4 alkyl or acyl radical, orR.sup.2 and R.sup.3 together are a C.sub.2 -C.sub.4 alkylene group,R.sup.4 is hydrogen or a C.sub.1 -C.sub.4 alkyl, acyl, ester, amide or acid group, andn is an integer from 1 to 10, provided n is not 1 when R is (meth)acryloyl, R.sup.2 and R.sup.3 are methyl and R.sup.1 and R.sup.4 are hydrogen.Under acidic conditions the above compounds having R.sup.
    Type: Grant
    Filed: July 30, 1985
    Date of Patent: September 1, 1987
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Robert K. Pinschmidt, Jr., Dale D. Dixon, William F. Burgoyne, Jr.
  • Patent number: 4680307
    Abstract: A compound of the formula: ##STR1## wherein X.sup.1 is a free or an esterified carboxyl group, or a group of the formula: ##STR2## (R.sup.a and R.sup.b are each independently a hydrogen atom, a C.sub.1 -C.sub.4 alkyl group, a C.sub.3 -C.sub.7 cycloalkyl group, a benzyl group, a phenyl group, a phenyl group substituted with a halogen atom or a C.sub.1 -C.sub.4 alkyl group, or, when taken together with the adjacent nitrogen atom to which they are attached, they represent a 5 to 7 membered saturated heterocyclic group, Y.sup.1 is a group of the formula: ##STR3## (R.sup.6 is a hydrogen atom or C.sub.1 -C.sub.4 alkyl group), ##STR4## (R.sup.6 is as defined above), ##STR5## R.sup.1 is a hydrogen atom, a hydroxyl group or a protected hydroxyl group, R.sup.2 is a hydrogen atom or R.sup.1 and R.sup.2, when taken together, mean a shingle linkage to from a double bond between the carbon atoms which they are linked, R.sup.3 is a hydroxyl group or a protected hydroxyl group, R.sup.4 is a hydrogen atom or a C.sub.1 -C.sub.
    Type: Grant
    Filed: January 26, 1984
    Date of Patent: July 14, 1987
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Masami Muraoka, Toshio Nakamura, Akihiko Sugie, Keiichi Ono, Michihiro Yamamoto
  • Patent number: 4680338
    Abstract: A selective bifunctional sequential linker has the formulaY.dbd.C.dbd.N--Q--A--C(O)--Zwherein Q is a homoaromatic or heteroaromatic ring system; A is a single bond or an unsubstituted or substituted divalent C.sub.1-30 bridging group; Y is O or S; and Z is Cl, Br, I, N.sub.3, N-succinimidyloxy, imidazolyl, 1-benzotriazolyloxy, OAr where Ar is an electron-deficient activating aryl group, or OC(O)R where R is --A--Q--N.dbd.C.dbd.Y or C.sub.4-20 tertiary-alkyl. A method for activating an amine function towards reaction with a second amine involves reacting the amine with the foregoing linker. The resultant isocyanate or isothiocyanate derivative can then be reacted with a second amine to form a urea or thiourea conjugate.The linker is useful for producing conjugates of ligands with amine-containing polymers and/or proteins, especially for forming antibody conjugates with chelators, drugs, enzymes, detectable labels and the like.
    Type: Grant
    Filed: October 17, 1985
    Date of Patent: July 14, 1987
    Assignee: Immunomedics, Inc.
    Inventor: Boby M. Sundoro
  • Patent number: 4677114
    Abstract: Novel derivatives of substituted pyrrolizine diones and the pharmaceutically acceptable salts and esters thereof, have therapeutic utility for reducing amnesia induced by electroconvulsive shock and for treating senility.
    Type: Grant
    Filed: November 22, 1985
    Date of Patent: June 30, 1987
    Assignee: Warner-Lambert Company
    Inventors: Donald E. Butler, Anthony J. Thomas
  • Patent number: 4668703
    Abstract: This invention is for .gamma.-allenyl-.gamma.-aminobutyric acid derivatives which are .gamma.-aminobutyric acid transaminase inhibitors.
    Type: Grant
    Filed: July 1, 1985
    Date of Patent: May 26, 1987
    Assignee: Syntex (U.S.A.) Inc.
    Inventors: Alexander Krantz, Arlindo L. Castelhano, Diana H. Pliura
  • Patent number: 4663464
    Abstract: Dihydro-1H-pyrrolizine-3,5-(2H,6H)-dione is produced in higher overall yield in a process which comprises catalytically hydrogenating a lower alkyl ester of 4-(hydroxyimino)heptanedioic acid in the presence of a tri-(lower alkyl)amine, followed by cyclization of the product thus produced in the presence of a cyclizing agent such as acetic anhydride.
    Type: Grant
    Filed: March 21, 1986
    Date of Patent: May 5, 1987
    Assignee: Warner-Lambert Company
    Inventor: Marvin S. Hoekstra
  • Patent number: 4650608
    Abstract: A novel star block copolymer represented by the general formula as shown below and a process for the production thereof are described. The copolymer has superior physical properties, particularly impact strength and, furthermore, is reduced in coloration. Thus the copolymer can find numerous uses; for example, it can be used in preparation of fibers, foams, automotive parts, and electrical components. The copolymer is produced by copolymerizing a star-shaped polyether prepolymer and a lactam, said prepolymer being prepared by reacting a star-shaped polyoxyalkylene having at least 3 terminal hydroxy groups and an N-chlorocarbonyl lactam, in the presence of an anionic polymerization catalyst. ##STR1## In this formula, all the symbols are as defined hereinbefore.
    Type: Grant
    Filed: August 6, 1985
    Date of Patent: March 17, 1987
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Saegusa Takeo, Jiro Horikawa, Masahiro Niwano, Takenobu Kanazawa
  • Patent number: 4620949
    Abstract: Amino acid derivatives are synthesized by reacting paraformaldehyde, cyclic amides and synthesis gas with a bimetallic catalyst comprising a rhodium-containing compound and a cobalt-containing compound, optionally in the presence of a solvent at a pressure of at least 500 psi and a temperature of at least 50.degree. C. The novel amino acid products may be hydrolyzed to amino dicarboxylic acids or used as monomers to polyamides.
    Type: Grant
    Filed: April 5, 1985
    Date of Patent: November 4, 1986
    Assignee: Texaco Inc.
    Inventor: Jiang-Jen Lin
  • Patent number: 4612132
    Abstract: Disclosed are additives which are useful as dispersants in lubricating oils, gasolines, marine crankcase oils and hydraulic oils. In particular, disclosed are polyamino alkenyl or alkyl succinimides which contain carbamate functionalities.
    Type: Grant
    Filed: April 12, 1985
    Date of Patent: September 16, 1986
    Assignee: Chevron Research Company
    Inventors: Robert H. Wollenberg, Frank Plavac, Timothy R. Erdman
  • Patent number: 4590204
    Abstract: 5-oxo-2,2-pyrrolidinedipropanoic acid, base addition salts and esters are useful as agents for the reversal of amnesia. Intermediates for preparing said compounds, pharmaceutical compositions containing said compounds and methods for using said pharmaceutical compositions for treating senility and reversal of amnesia are also taught.
    Type: Grant
    Filed: April 5, 1984
    Date of Patent: May 20, 1986
    Assignee: Warner-Lambert Company
    Inventor: Donald E. Butler
  • Patent number: 4582838
    Abstract: Certain derivatives of dihydro-1H-pyrrolo-[1,2-c]imidazol-3,5[2H,6H]-dione are cognition-activating compounds, possessing pharmacological activity for treating senility or for reversing the effects of electroconvulsive shock-induced amnesia. Pharmaceutical compositions including these compounds, a method of preparing the compounds, and of treating senility or of reversing the effects of induced amnesia are also disclosed.
    Type: Grant
    Filed: August 24, 1984
    Date of Patent: April 15, 1986
    Assignee: Warner-Lambert Company
    Inventors: Donald E. Butler, James D. Leonard
  • Patent number: 4581364
    Abstract: Compounds of the formula ##STR1## wherein R.sub.1 is hydrogen or alkyl of 1 to 4 carbon atoms; andR.sub.2 is pyridyl, phenyl or mono-, di- or tri-substituted phenyl, where the substituents are alkyl of 1 to 2 carbon atoms, alkoxy of 1 to 2 carbon atoms, fluorine, chlorine, bromine, trifluoromethyl, nitro, benzyloxy or hydroxyl.The compounds are useful as nootropics.
    Type: Grant
    Filed: July 9, 1984
    Date of Patent: April 8, 1986
    Assignee: Boehringer Ingelheim KG
    Inventors: Karl-Heinz Weber, Gerhard Walther, Claus Schneider, Dieter Hinzen, Franz J. Kuhn, Erich Lehr
  • Patent number: 4560767
    Abstract: Amino-cycloalkenyl-amide compounds, e.g., (1.alpha.,6.beta.)-(.+-.)-3,4-dichloro-N-methyl-N-(6-(1-pyrrolidinyl)-3-cy clohexen-1-yl)benzeneacetamide, and tritiated derivatives thereof, are useful as analgesics and as radio labeled compounds for pharmacological and metabolism studies in animals.
    Type: Grant
    Filed: June 17, 1983
    Date of Patent: December 24, 1985
    Assignee: The Upjohn Company
    Inventors: John M. McCall, Robert A. Lahti
  • Patent number: 4559358
    Abstract: 5-Oxo-2-pyrrolidinepropanoic acids, base addition salts, esters and amides are useful as agents for the reversal of amnesia. Pharmaceutical compositions containing said compounds and methods for using said compositions for treating senility and reversal of amnesia are also taught.
    Type: Grant
    Filed: March 24, 1983
    Date of Patent: December 17, 1985
    Assignee: Warner-Lambert Company
    Inventor: Donald E. Butler
  • Patent number: 4552889
    Abstract: This invention provides for certain lactam derivatives, their pharmaceutical formulations, and a method of treating hypertension.
    Type: Grant
    Filed: June 9, 1983
    Date of Patent: November 12, 1985
    Assignee: Eli Lilly and Company
    Inventor: William L. Scott
  • Patent number: 4548936
    Abstract: The present invention relates to .DELTA..sup.1 -pyrroline thiolactim ethers of the general formula I ##STR1## which have a more specific action and/or a longer-lasting action than PGI.sub.2, and to a process for their preparation.The compounds are distinguished by a platelet aggregation-inhibiting action and a blood vessel-relaxing and hypotensive action, and can therefore be used as medicaments.
    Type: Grant
    Filed: May 5, 1982
    Date of Patent: October 22, 1985
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Gerhard Beck, Wilhelm Bartmann, Jochen Knolle, Richard H. Rupp
  • Patent number: 4539408
    Abstract: Quaternary sulfoalkyl or sulfoalkenyl salts of tertiary amine bases are prepared by reacting the tertiary amine bases at elevated temperatures with a hydroxy alkane sulfonic acid or a hydroxyalkene sulphonic acid.
    Type: Grant
    Filed: April 28, 1978
    Date of Patent: September 3, 1985
    Assignee: Agfa-Gevaert Aktiengesellschaft
    Inventors: Helmut Kampfer, Marie Hase, Max Glass
  • Patent number: 4528299
    Abstract: 1-(2,3-Dimethyl-4-methoxyphenyl)-2-methyl-3-(1-pyrrolidinyl)-1-propanone and its pharmaceutically acceptable acid addition salts, which are useful as centrally acting muscle relaxants in the treatment of spasticity in mammals including humans, process for the preparation thereof, and pharmaceutical composition containing said compound as an active ingredient.
    Type: Grant
    Filed: September 7, 1983
    Date of Patent: July 9, 1985
    Assignee: Dainippon Pharmaceutical Co., Ltd.
    Inventors: Hitoshi Uno, Tadahiko Karasawa, Tatsuya Kon, Tsugutaka Ito
  • Patent number: 4500343
    Abstract: 1-Heterocyclic-2-pyrrolidinone analogs, and intermediates thereof, as aquatic and terrestrial herbicides and aquatic algicides. The compounds and intermediates can also be used together with one or more herbicides to provide useful terrestrial herbicidal combinations.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: February 19, 1985
    Assignee: Eli Lilly and Company
    Inventor: Kenneth W. Burow, Jr.
  • Patent number: 4476311
    Abstract: Analgesic and anti-inflammatory compounds are provided. These compounds possess the following general formula: ##STR1## wherein R=--COOR.sub.5, --CH.sub.2 CO.sub.2 H, ##STR2## wherein A and B=hydrogen, lower alkyl, hydroxy alkyl, lower alkyl amine, substituted lower alkyl amine, aminoalkyl, substituted aminoalkyl;R.sub.5 =lower alkyl;R.sub.1 =aryl, substituted aryl, aralkyl, alkyl, hydrogen, substituted aralkyl and heterocycle;R.sub.2 =aryl, substituted aryl, aralkyl, alkyl, substituted aralkyl, heterocycle, substituted heterocycle, biphenyl, substituted biphenyl, naphthyl, and substituted naphthyl;R.sub.3 =aryl, substituted aryl, hydrogen, aralkyl, substituted aralkyl, alkyl, heterocycle and substituted heterocycle;R.sub.2 and R.sub.3 together form a ring;R.sub.4 =hydrogen, phenyl, substituted phenyl, heterocycle; alkyl, substituted alkyl; or, R.sub.1 and R.sub.4 may form a ring;X=>C.dbd.O, --CH.sub.2 --;Y=--S--CHR.sub.4 --, --O--OHR.sub.4 --, --CHR.sub.4 --, --CR.sub.6 R.sub.7 --CHR.sub.
    Type: Grant
    Filed: February 19, 1982
    Date of Patent: October 9, 1984
    Assignee: The Purdue Frederick Company
    Inventors: Bola V. Shetty, Arthur McFadden, Peter Hofer
  • Patent number: 4466981
    Abstract: Psoriasis in mammals is relieved by topically administering naphthalenes of the formula: ##STR1## wherein: R.sup.1 and R.sup.2 are lower alkoxy or lower alkylthio;R.sup.3 is hydrogen, lower alkyl, lower alkoxy, optionally substituted phenyl, optionally substituted phenyl lower alkyl, optionally substituted phenyl lower alkoxy, amino, lower alkylamino, lower dialkylamino, halo, cyano, or S(O).sub.n R wherein R is lower alkyl; optionally substituted phenyl; optionally substituted phenyl lower alkyl; or optionally substituted heterocyclic aryl of three to nine ring atoms containing one or two heteroatoms selected from the group consisting of nitrogen, oxygen and sulfur, and the pharmaceutically acceptable acid addition salts thereof; and n is 0, 1 or 2; andW is alkyl of one to seven carbon atoms.
    Type: Grant
    Filed: October 27, 1982
    Date of Patent: August 21, 1984
    Assignee: Syntex (U.S.A.) Inc.
    Inventors: Gordon H. Jones, Michael C. Venuti, Young, John M.
  • Patent number: 4463177
    Abstract: m-Hydroxyphenyl substituted compounds of formula ##STR1## where R is an organic radical and R.sup.1 is hydroen or an organic radical are prepared by dehydrohalogenating a compound of formula ##STR2## (where X is chlorine or bromine, and R and R.sup.1 have the above meanings). Preferred novel starting materials of formula (II) are of the formula ##STR3## (where R.sup.1 and X are as above, n is 2,3 or 4, R.sup.2 is hydrogen or lower alkyl and R.sup.3 is hydrogen, lower alkyl, lower alkenyl, lower alkynyl, cycloalkyl(lower)alkyl or aryl(lower)alkyl).
    Type: Grant
    Filed: November 26, 1982
    Date of Patent: July 31, 1984
    Assignee: John Wyeth & Brother Limited
    Inventor: Robin G. Shepherd
  • Patent number: 4463014
    Abstract: Esters in their stereoisomeric form or mixtures thereof of the formula ##STR1## wherein R.sub.1 and R are different and individually selected from the group consisting of hydrogen, fluorine and bromine, R.sub.2 is selected from the group consisting of --CN and --C.tbd.CH and R.sub.3 is a hydrocarbyl group having pesticidal properties and their preparations.
    Type: Grant
    Filed: April 5, 1982
    Date of Patent: July 31, 1984
    Assignee: Roussel Uclaf
    Inventors: Jacques Martel, Jean Tessier, Jean-Pierre Demoute
  • Patent number: 4460480
    Abstract: The present invention relates to novel oligomers of the formula R.sub.f --E--S--M.sub.1 ].sub.x [M.sub.2 ].sub.y H, and mixutes thereof, wherein R.sub.f is a perfluoroalkyl group, E is a linkage group, --M.sub.1 -- represents a hydrophilic monomer unit, --M.sub.2 -- represents a hydrophobic monomer unit, x and y represent the number of monomer units present in the novel oligomers. The sum of x and y is between 4 and 500 and x/(x+y) is between 1 and 0.5. The novel oligomers are useful as additives in protein foam type fire fighting compositions improving foam expansion, foam drainage and extinguishing times and reducing flammability of hydrocarbon contaminated protein foams. The novel oligomers are further useful as surface tension depressants providing improved wetting, spreading and leveling properties in aqueous systems.
    Type: Grant
    Filed: March 13, 1980
    Date of Patent: July 17, 1984
    Assignee: Ciba-Geigy Corporation
    Inventors: Eduard K. Kleiner, Thomas W. Cooke, Robert A. Falk
  • Patent number: 4458090
    Abstract: Novel .gamma.-lactone derivatives are provided. These lactone derivatives, when reacted with hydrogen halide in alcohol, yield .gamma.-halogeno-.delta.-unsaturated carboxylic acid esters. This ring-opening process is useful for the purpose of increasing the yield of pyrethrin analogs which are of value as insecticides and agricultural chemicals. Thus, the .gamma.-lactone derivatives by-produced in the production process for dihalogenovinyl chrysanthemumates are caused to undergo ring-opening reaction to yield the corresponding .gamma.-halogeno-.delta.-unsaturated carboxylic acid esters which are important intermediates for said pyrethrin analogs.
    Type: Grant
    Filed: October 15, 1981
    Date of Patent: July 3, 1984
    Assignee: Kuraray Co., Ltd.
    Inventors: Mori Fumio, Omura Yoshiaki, Nishida Takashi, Itoi Kazuo
  • Patent number: 4456613
    Abstract: Biologically active 6-keto- and 6-hydroxy-8-azaprostanoids having the formula: ##STR1## wherein A is O or ##STR2## R is CO.sub.2 R.sup.4 or CH.sub.2 OH; R.sup.1 is H, CH.sub.3, or C.sub.2 H.sub.5 ;R.sup.2 is H, CH.sub.3, or F;R.sup.3 is CH.sub.3 or CF.sub.3 ;R.sup.4 is H, C.sub.1 to C.sub.12 n-alkyl, branched chain alkyl, or cycloalkyl, or a physiologically acceptable metal or amine salt cation; andn is an integer from 3 to 8.
    Type: Grant
    Filed: December 27, 1982
    Date of Patent: June 26, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Chia-Lin J. Wang
  • Patent number: 4454327
    Abstract: 5-oxo-2,2-pyrrolidinedipropanoic acid, base addition salts and esters are useful as agents for the reversal of amnesia. Intermediates for preparing said compounds, pharmaceutical compositions containing said compounds and methods for using said pharmaceutical compositions for treating senility and reversal of amnesia are also taught.
    Type: Grant
    Filed: May 24, 1982
    Date of Patent: June 12, 1984
    Assignee: Warner-Lambert Company
    Inventor: Donald E. Butler
  • Patent number: 4452990
    Abstract: 1-Aroyl-5-oxo-2-pyrrolidinepropanoic acids, salts, and esters which are useful as pharmacological agents, especially as agents for the reversal of amnesia, enhancing performance in poorly motivated subjects and treatment of senility and methods for their preparations are disclosed. Pharmaceutical compositions containing said compounds, salts, and esters and methods for using said compositions in treating senility, improving motivation and reversal of amnesia are also taught.
    Type: Grant
    Filed: November 15, 1982
    Date of Patent: June 5, 1984
    Assignee: Warner-Lambert Company
    Inventor: Donald E. Butler
  • Patent number: 4450102
    Abstract: Novel compositions are provided for the cleaning and inhibiting corrosion of metallic surfaces. The cleaning composition has an active ingredient consisting of at least one sulfur containing compound selected from the group consisting of a bis(N-2 pyrrolidonyl), an (N-2 pyrrolidonyl), or a bis(N-succinimidyl) sulfur-containing compound.
    Type: Grant
    Filed: November 2, 1982
    Date of Patent: May 22, 1984
    Assignee: Phillips Petroleum Company
    Inventors: Merlin R. Lindstrom, Gary D. Macdonell, Rector P. Louthan, Donald H. Kubicek