Acyclic Carbon To Carbon Unsaturation Containing Patents (Class 568/646)
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Patent number: 4996237Abstract: The African tree Combretum caffrum (Combretaceae) has been found to contain an agent which is a powerful inhibitor of tubulin polymerization (IC50 2-3 .mu.M), the growth of murine lymphocytic leukemia (L1210 and P388 with ED50 <0.003 mg/ml and human colon cancer cell lines (e.g. VoLo with ED50 <0.01 .mu.g/ml). This agent is herein denominated "combretastatin A-4". The structure assigned by spectral techniques was confirmed by synthesis.Type: GrantFiled: February 22, 1988Date of Patent: February 26, 1991Assignee: Arizona Board of RegentsInventors: George R. Pettit, Sheo B. Singh
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Patent number: 4959391Abstract: Phenol derivatives of the formula ##STR1## wherein A and B have the same or different meanings and each represent one of the groups --C.tbd.C--, cis--CH.dbd.CH-- or trans--CH.dbd.CH--, R.sub.1 is hydrogen, an optionally substituted alkyl or phenyl group or a cycloalkyl group, R.sub.2 is hydrogen, methyl or ethyl, R.sub.3 represents hydrogen, acetyl or propionyl, R.sub.4 has the same meaning as R.sub.3 or represents an alkyl group, R.sub.5 is a carboxylic or a hydroxy group or a functional derivative of such groups or R.sub.5 is a nitrile group and R.sub.6 is hydrogen, an alkyl group or the group OR.sub.4 which specifically inhibit 5-lipoxygenase and are useful in pharmaceutical compositions for prophylaxis and treatment of diseases due to the action of leukotrienes. The compounds are prepared by reacting suitable acetylene compounds or metal derivatives thereof with alkyl or aryl halides or by means of Wittig reactions optionally followed by transforming the member R.sub.Type: GrantFiled: July 14, 1988Date of Patent: September 25, 1990Assignee: Gruenenthal GmbHInventors: Oswald K. Zimmer, Werner P. Vollenberg, Gerriet K. H. Loschen, Werner Winter, Erwin O. Kiesewetter, Ulrich G. P. Seippl
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Patent number: 4956442Abstract: Poly(vinylbenzyl ethers) of polyphenols are prepared by reacting an alkali metal, alkaline earth metal, or ammonium salt of a polyphenol with a vinylbenzyl halide in a liquid reaction medium consisting essentially or a monohydric alcohol or glycol having less than 12 carbons, a polyglycol having a weight average molecular weight ranging from about 200 to about 4000, or glycerol.Halide ion content of poly(vinylbenzyl ethers) of polyphenols prepared by the method of this invention and other methods are reduced by dissolving the ether in a solvent that dissolves no more than about 1.0 weight percent of an alkali metal, alkaline earth metal, or ammonium halide; separating the ether solution from the halide salt; and then recovering the ether from the solution.Type: GrantFiled: September 23, 1987Date of Patent: September 11, 1990Assignee: The Dow Chemical CompanyInventors: Ming-Biann Liu, James Godschalx, Ernest Ecker, Alfred Caldecourt
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Patent number: 4954659Abstract: A grignard synthesis of pharmacologically active 1,4-bis(dihydroxyphenyl)butane and analogs, as well as novel intermediates, is provided, comprising preparing a grignard reagent preferably, a 3,4-dialkoxyphenyl propyl magnesium bromide, which may be reacted with carbonyl compounds to form intermediates of desired end products, said carbonyl compounds preferably being 3,4-dialkoxybenzaldehydes. The resulting alcohol is converted to a corresponding ether or siloxy compound, at the carbonyl site. The oxy-substituent is cleaved off; and the benzene ring or rings dealkylated to leave hydroxy substituents on the rings.Type: GrantFiled: August 19, 1988Date of Patent: September 4, 1990Assignee: Chemex Pharmaceuticals, Inc.Inventors: Robert M. Parkhurst, Ronald S. Pardini
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Patent number: 4845129Abstract: The invention discloses certain diaryl substituted cyclopentane and cyclopentene derivatives useful as PAF inhibitors, pharmaceutical compositions containing said compounds as an active ingredient thereof and a method of using such compositions for inhibiting PAF-induced blood platelet aggregation, PAF-mediated broncho-constriction and extravasation, PAF-induced hypotension, PAF-induced ischemic bowel disease and PAF-mediated, endotoxin induced lug injury.Type: GrantFiled: March 14, 1988Date of Patent: July 4, 1989Assignee: Sandoz Pharm. Corp.Inventors: Robert C. Anderson, William J. Houlihan, Howard C. Smith, Edwin B. Villhauer
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Patent number: 4774316Abstract: The polyfunctional vinylbenzyl ethers of polyhydric halogenated phenolic compounds are prepared and can be copolymerized with polycyanate ester compounds to provide copolymers having dielectric constants below 3 and a V-O rating in a UL-94 test.Type: GrantFiled: August 15, 1986Date of Patent: September 27, 1988Assignee: The Dow Chemical CompanyInventors: James P. Godschalx, Edmund P. Woo, Patricia A. Schrader, Peter D. Aldrich
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Patent number: 4772755Abstract: A method for synthesizing a tri-substituted phenyl compound (I) by using a 1,2-addition followed by a 1,4-addition to 1,4-benzoquinone (II): ##STR1## wherein X is hydroxy, alkoxy or alkanoyloxy, Ar.sup.1 is an organic group and R is an unsubstituted or substituted alkyl group.Type: GrantFiled: March 19, 1987Date of Patent: September 20, 1988Assignee: McNeilab, Inc.Inventors: Dennis C. Liotta, Cynthia A. Maryanoff, Vasken Paragamian
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Patent number: 4760087Abstract: Phenol derivatives of the formula ##STR1## wherein A and B have the same or different meanings and each represent one of the groups --C.tbd.C--, cis--CH.dbd.CH-- or trans--CH.dbd.CH--, R.sub.1 is hydrogen, an optionally substituted alkyl or phenyl group or a cycloalkyl group, R.sub.2 is hydrogen, methyl or ethyl, R.sub.3 represents hydrogen, acetyl or propionyl, R.sub.4 has the same meaning as R.sub.3 or represents an alkyl group, R.sub.5 is a carboxylic or a hydroxy group or a functional derivative of such groups or R.sub.5 is a nitrile group and R.sub.6 is hydrogen, an alkyl group or the group OR.sub.4 which specifically inhibit 5-lipoxygenase and are useful in pharmaceutical compositions for prophylaxis and treatment of diseases due to the action of leukotrienes. The compounds are prepared by reacting suitable acetylene compounds or metal derivatives thereof with alkyl or aryl halides or by means of Wittig reactions optionally followed by transforming the member R.sub.Type: GrantFiled: May 13, 1986Date of Patent: July 26, 1988Assignee: Gruenenthal GmbHInventors: Oswald K. Zimmer, Werner P. Vollenberg, Gerriet K. H. Loschen, Werner Winter, Erwin Kiesewetter, Ulrich G. P. Seipp
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Patent number: 4754076Abstract: A process for producing a phenoxycycloalkanol comprising reacting an aromatic alcohol with an (optionally substituted) C.sub.5 -C.sub.6 cycloalk-1,2-ylene oxide in the presence of an effective amount of a sodium-containing catalyst selected from the group consisting of sodium metal, C.sub.1 -C.sub.8 sodium alkoxide, C.sub.6 -C.sub.10 sodium aryloxide, C.sub.7 -C.sub.9 sodium alkaryloxide and sodium hydride at between about 170.degree. C. and about 225.degree. C.Type: GrantFiled: February 19, 1986Date of Patent: June 28, 1988Assignee: Uniroyal Chemical Company, Inc.Inventors: Rupert A. Covey, Shih Y. Ma
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Patent number: 4733002Abstract: A lipoxygenase inhibitor comprising as active ingredient a substituted styrene derivative having a radical of the general formula ##STR1## wherein X denotes a hydroxyl group or a lower alkoxy group and q is an integer of 2 or 3, and containing carbon atoms in total of at least 8.Type: GrantFiled: May 23, 1985Date of Patent: March 22, 1988Assignee: Green Cross CorporationInventors: Kazumasa Yokoyama, Chikara Fukaya, Masanori Sugiura, Youichiro Naito, Youichiro Nishida, Tadakazu Suyama
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Patent number: 4707558Abstract: Monomers and oligomers containing a plurality of vinylbenzyl ether groups are prepared by reacting a material containing a plurality of aromatic hydroxyl groups such as tetramethyltetrabromobisphenol A with a vinylbenzyl halide such as vinylbenzyl chloride in the presence of a polar aprotic solvent such as dimethylformamide. The monomers and oligomers prepared by this process have an improvement in one or more properties selected from dielectric constant (before and/or after moisture absorption) or thermal stability. Also disclosed are new monomers and oligomers containing a plurality of vinylbenzyl ether groups such as bis(vinylbenzyl)ether of dicyclopentadienyl bisdimethylphenol.Type: GrantFiled: September 3, 1986Date of Patent: November 17, 1987Assignee: The Dow Chemical CompanyInventors: Chun S. Wang, Zeng-kun Liao, Dennis L. Steele
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Patent number: 4686235Abstract: Substituted cinnamyl-2,3-dihydrobenzofurans and analogs were prepared from the nucleophlic substitution of a cinnamylhalide with a 2,3-dihydrobenzofuran anion or an analog thereof. These compounds were found to be potent topical anti-inflammatory agents.Type: GrantFiled: August 12, 1985Date of Patent: August 11, 1987Assignee: Merck & Co., Inc.Inventors: Michael N. Chang, Norman P. Jensen, Milton L. Hammond, Robert A. Zambias, John McDonald, Kathleen M. Rupprecht
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Patent number: 4644085Abstract: The invention relates to a new anti-cancer chemical compound which has been called rooperol and certain derivatives thereof of the general formula ##STR1## in which A is chosen from the group including a phenyl group, a substituted phenyl group and --CH.sub.2 --O--R.sup.5 where R.sup.5 =H, an alkyl (C.sub.1 -C.sub.5), aralkyl or acyl substituent; R.sup.1 and R.sup.2 are chosen from substituents including H for both or singly if one of them is --OH, --NH.sub.2, --SH, ##STR2## or taken together R.sup.1 and R.sup.2 are =0; R.sup.3 is H or ##STR3## where R.sup.6 is an alkyl group (C.sub.1 -C.sub.7); either of R.sup.4 or B are chosen from substituents including H, ##STR4## a phenyl group, substituted phenyl group or a furyl group.Type: GrantFiled: June 4, 1985Date of Patent: February 17, 1987Assignee: Rooperol (NA) NVInventors: Siegfried Drewes, Roelof W. Liebenberg
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Patent number: 4640849Abstract: Polyfunctional cationically polymerizable styryloxy compounds of the formula ##STR1## where R.sup.1 is H or methyl; R.sup.2 is hydrocarbyl, hydrocarbyl interrupted by ether oxygen atoms, or halo substituted hydrocarbyl; R.sup.3 is H, lower alkyl, or alkoxy; G is any multivalent organic or inorganic radical free of amino or aliphatic thiol groups; and n is an integer of two or more.Type: GrantFiled: January 31, 1986Date of Patent: February 3, 1987Assignee: Loctite (Ireland) LimitedInventors: John G. Woods, John M. Rooney
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Patent number: 4614747Abstract: This invention relates to novel compounds having pharmaceutical activity and having the general structure ##STR1## wherein the Z, R.sub.1, R.sub.2, R.sub.3, R.sub.4, n and m are defined within.Type: GrantFiled: November 29, 1984Date of Patent: September 30, 1986Assignee: USV Pharmaceutical Corp.Inventors: Bernard Loev, Howard Jones, Wan-kit Chan
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Patent number: 4610996Abstract: Phenoxytriazolyl ketones and carbinols of the formula ##STR1## in which A represents the keto group or the CH(OH) grouping andR represents hydrogen, alkenyl, alkinyl, halogenoalkyl, halogenoalkenyl, alkylcarbonyl, optionally substituted benzyl or optionally substituted phenoxymethyl,or addition products thereof with acids or metal salts, which possess fungicidal activity.Type: GrantFiled: April 11, 1984Date of Patent: September 9, 1986Assignee: Bayer AktiengesellschaftInventors: Udo Kraatz, Karl H. Buchel, Paul Reinecke, Wilhelm Brandes, Gerd Hanssler
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Patent number: 4598160Abstract: A catalytic synthesis of chromans in racemic or optically active forms, including intermediates thereto; the synthesis employs an asymmetric palladium (II) catalyzed oxidative cyclization of a 2-homoallylphenol and provides intermediates useful in making chromans, especially vitamin E in racemic or optically active forms.Type: GrantFiled: March 11, 1985Date of Patent: July 1, 1986Assignee: Hoffmann-La Roche Inc.Inventor: Larry K. Truesdale
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Patent number: 4562298Abstract: A process for producing novel compositions including optically active molecules of nordihydroguaiaretic acid (d,1-2,3-dimethyl,1,4-bis(3,4-dihydroxyphenyl)butane) and intermediates, starting with 1,4-bis(3,4-dimethoxyphenyl)butanone, or other structurally similar composition having oxy substituents at the 3,4-phenyl positions, comprising (1) forming the corresponding butanol; (20) forming the corresponding 1,4-butane ether or siloxy composition; (3) cleaving the oxy substituent from the butane chain at the 1 and 4 positions; (4) dealkylating the phenols at the 3,4 positions to leave hydroxy substituents with hydrobromic acid reflux for 8 to 10 hours. Optical orientation is preserved throughout.Type: GrantFiled: October 25, 1982Date of Patent: December 31, 1985Assignee: Chemex Pharmaceuticals, Inc.Inventors: Robert M. Parkhurst, Ronald S. Pardini
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Patent number: 4543397Abstract: Polyfunctional cationically polymerizable styryloxy compound of the formula ##STR1## where R.sup.1 and R.sup.2 are H, or one of R.sup.1 and R.sup.2 are H and the other is methyl; R.sup.3 and R.sup.4 are H, lower alkyl, or alkoxy if R.sup.2 is not methyl; R.sup.5 is a divalent hydrocarbon radical; G is any multivalent organic or inorganic radical free of amino, aliphatic hydroxyl, aliphatic thiol or other groups which interfere with cationic polymerization; and n is an integer of two or more.Type: GrantFiled: December 4, 1984Date of Patent: September 24, 1985Assignee: Loctite (Ireland) Ltd.Inventors: John Woods, John M. Rooney, Stephen J. Harris
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Patent number: 4507492Abstract: Allyl derivatives of phenols, thiophenols and arylamines are prepared by contacting such aromatic reactant with an allyl lower alkyl carbonate in the presence of a molybdenum, tungsten or Group VIII metal.Type: GrantFiled: May 6, 1983Date of Patent: March 26, 1985Assignee: The Dow Chemical CompanyInventor: Edmund P. Woo
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Patent number: 4335055Abstract: Compounds of the formula I ##STR1## in which Z, Z.sub.1, R, m and p are as defined in patent claim 1, can be obtained in a simple and economical manner by a novel process wherein a halide of the formula II ##STR2## is reacted with a substituted or unsubstituted vinylbenzene or vinylnaphthalene derivative in the presence of a base and of certain palladium catalysts, such as palladium acetate. The compounds (I) or functional derivatives preparable therefrom are useful, for example, for the preparation of known dyes or fluorescent brighteners, or can be used directly as fluorescent brighteners or as scintillators.Type: GrantFiled: May 8, 1981Date of Patent: June 15, 1982Assignee: Ciba-Geigy CorporationInventors: Hans-Ulrich Blaser, Dieter Reinehr, Alwyn Spencer
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Patent number: 4317941Abstract: The present specification relates to novel 9-deoxy-9-methylene-trans-2,3-didehydro-PGF compounds with improved pharmacological properties. While these compounds are useful in inducing a wide variety of prostaglandin-like pharmacological effects, they are specifically useful as regulators of procreation and fertility.Type: GrantFiled: August 11, 1978Date of Patent: March 2, 1982Assignee: The Upjohn CompanyInventor: Gordon L. Bundy
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Patent number: 4314086Abstract: Aliphatic/aromatic ethers are prepared by reacting an aliphatic halide with either an alkali or alkaline earth metal, or ammonium phenolate or naphtholate, in an inert organic solvent, and in the presence of at least one tertiary amine sequestering agent having the formula:N--CHR.sub.1 CHR.sub.2 --O--CHR.sub.3 --CHR.sub.4 --O--.sub.n R.sub.5 ].sub.Type: GrantFiled: June 20, 1980Date of Patent: February 2, 1982Assignee: Rhone-Poulenc IndustriesInventors: Gerard Soula, Daniel Michelet
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Patent number: 4306097Abstract: Cycloalkanones, cycloalkanols and unsaturated analogs thereof, each of which has at the 3-position a 2-hydroxy-4-substituted phenyl group wherein the 4-position substituent is alkyl which can have an oxygen atom as part of the chain, or aralkyl which can have an oxygen atom as part of the alkyl chain, their use for pharmacological and medicinal purposes, intermediates therefor and processes for their preparation.Type: GrantFiled: September 8, 1980Date of Patent: December 15, 1981Assignee: Pfizer Inc.Inventors: Charles A. Harbert, Michael R. Johnson, Lawrence S. Melvin, Jr.
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Patent number: 4263212Abstract: The present invention relates to a process for the preparation of aromatic or furyl substituted olefins, which comprises reacting an olefinic compound with an aromatic compound or furan compound in the presence of carbon monoxide by using a rhodium carbonyl complex as a catalyst to form a corresponding aromatic or furyl substituted olefin.Type: GrantFiled: February 14, 1980Date of Patent: April 21, 1981Assignee: Rikagaku KenkyushoInventors: Pangbu Hong, Hiroshi Yamazaki
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Patent number: 4259529Abstract: The present invention provides novel 2-decarboxy-2-hydroxymethyl-19,20-didehydro-13,14-dihydro-PG.sub.1 compounds methods for their preparation and pharmacological use for the induction of prostaglandin-like effect.Type: GrantFiled: October 17, 1979Date of Patent: March 31, 1981Assignee: The Upjohn CompanyInventor: John C. Sih
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Patent number: 4259528Abstract: The present invention provides novel 2-decarboxy-2-hydroxymethyl-19,20-didehydro-PG.sub.1 compounds, methods for their preparation and pharmacological use for the induction of prostaglandin-like effect.Type: GrantFiled: October 17, 1979Date of Patent: March 31, 1981Assignee: The Upjohn CompanyInventor: John C. Sih
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Patent number: 4243611Abstract: Prostaglandin derivatives having a 19,20-didehydro, a 19-hydroxy, or a 19-keto feature are disclosed, including processes for preparing them and the appropriate intermediates.A typical 19-hydroxy compound of this invention is 19-hydroxy-19-methyl-PGF.sub.2.alpha.Type: GrantFiled: April 2, 1979Date of Patent: January 6, 1981Assignee: The Upjohn CompanyInventor: John C. Sih
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Patent number: 4209642Abstract: Compounds of the formula ##STR1## wherein R.sup.1 is an acyl group or certain optionally halo-substituted hydrocarbyl groups, and X is --CH.sub.2 CH(OCH.sub.3).sub.2, --CH.sub.2 CHO, --CH.dbd.CHOR.sup.2 in which R.sup.2 is acyl, --CHO, --C(O)Cl, --C(O)Br or --C(O)OR in which R is H, a salt-forming cation, an alkyl group or the residue of a pyrethroid alcohol are new pesticides or intermediates therefore. The compounds are prepared using a multi-step synthesis starting from the natural terpene, 3-carene.Type: GrantFiled: March 15, 1979Date of Patent: June 24, 1980Assignee: Shell Oil CompanyInventor: Steven A. Roman
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Patent number: 4206311Abstract: This invention comprises certain analogs of the prostaglandins in which the C-1 carboxyl is replaced by a primary alcohol and the double bond between C-13 and C-14 is replaced by a triple bond. Also provided in this invention, are novel chemical processes useful in the preparation of the above prostaglandin analogs. These prostaglandin analogs exhibit prostaglandin-like activity, and are accordingly useful for the same pharmacological purposes as the prostaglandins. Among these purposes are blood pressure lowering, labor induction at term, reproductive-cycle regulation, gastric antisecretory action, and the like.Type: GrantFiled: February 24, 1978Date of Patent: June 3, 1980Assignee: The Upjohn CompanyInventor: Herman W. Smith
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Patent number: 4202822Abstract: Derivatives, analogs, and congeners of prostane having a 1-(hydroxymethyl)-1-oxo-prostane structure in the F.sub.1 series.Type: GrantFiled: December 8, 1977Date of Patent: May 13, 1980Assignee: American Cyanamid CompanyInventor: Allan Wissner
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Patent number: 4189610Abstract: Dehydrohalogenation-rearrangement of 1,1-bis(4-oxy-substituted aryl)-2-haloethanes to yield 4,4'-dioxysubstituted stilbenes is effected by heating an acidic reaction medium comprising the 1,1-bis(4-oxy-substituted aryl)-2-haloethane dissolved in a solution of an aliphatic carboxylic acid and a carboxylic acid salt. The process is particularly directed to the preparation of 4,4'-dihydroxystilbene from 1,1-bis(4-hydroxyphenyl)-2-chloroethane.Type: GrantFiled: October 31, 1977Date of Patent: February 19, 1980Assignee: Monsanto CompanyInventor: James P. Coleman
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Patent number: 4182911Abstract: Novel optically-active (S)- 1-aryloxy-2,3-epoxy-propane derivatives, a process for their manufacture, various intermediates used in the preparation thereof, and a process for using them for the manufacture of optically-active (S)-1-aryloxy-3-amino-2-propanol derivatives useful as .beta.-adrenergic blocking agents.Type: GrantFiled: December 20, 1977Date of Patent: January 8, 1980Assignee: Imperial Chemical Industries LimitedInventor: Howard Tucker
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Patent number: 4165436Abstract: The present specification relates to novel 9-deoxy-9-methylene-trans-2,3-didehydro-PGF compounds with improved pharmacological properties. While these compounds are useful in inducing a wide variety of prostaglandin-like pharmacological effects, they are specifically useful as regulators of procreation and fertility.Type: GrantFiled: April 5, 1978Date of Patent: August 21, 1979Assignee: The Upjohn CompanyInventor: Gordon L. Bundy
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Patent number: 4157449Abstract: Hydroxy, alkoxy and acyloxy ethynylbenzene compounds and their derivatives which are useful for the treatment for the relief of inflammation, pain and fever.Type: GrantFiled: November 23, 1976Date of Patent: June 5, 1979Assignee: William H. Rorer, Inc.Inventor: Julius Diamond
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Patent number: 4145561Abstract: The present invention relates to novel 2-decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-16-phenyl-PGF compounds. These compounds are useful pharmacological agents, and are useful for the same purposes as the corresponding PGE-type compounds.Type: GrantFiled: July 12, 1978Date of Patent: March 20, 1979Assignee: The Upjohn CompanyInventor: Gordon L. Bundy
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Patent number: 4144276Abstract: This invention comprises certain analogs PGE or 11-deoxy-PGE compounds in which the carbonyl at C-9 is replaced by methylene. Also provided in this invention, are novel chemical processes and novel chemical intermediates useful in the preparation of the above prostaglandin analogs. These prostaglandin analogs exhibit prostaglandin-like activity, and are accordingly useful for the same pharmacological purposes as the prostaglandins. Among these purposes are blood pressure lowering, labor induction at term, reproductive-cycle regulation, gastric antisecretory action, and the like.Type: GrantFiled: May 8, 1978Date of Patent: March 13, 1979Assignee: The Upjohn CompanyInventor: Gordon L. Bundy
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Patent number: 4137273Abstract: Novel phenyl derivatives of formula I useful for the control of insects and novel intermediates.Type: GrantFiled: January 19, 1973Date of Patent: January 30, 1979Assignee: Zoecon CorporationInventor: John B. Siddall
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Patent number: 4130591Abstract: This invention comprises certain analogs of the prostaglandins in which the C-1 carboxyl is replaced by a primary alcohol and the double bond between C-13 and C-14 is replaced by a triple bond. Also provided in this invention, are novel chemical processes useful in the preparation of the above prostaglandin analogs. These prostaglandin analogs exhibit prostaglandin-like activity, and are accordingly useful for the same pharmacological purposes as the prostaglandins. Among these purposes are blood pressure lowering, labor induction at term, reproductive-cycle regulation, gastric antisecretory action, and the like.Type: GrantFiled: February 24, 1978Date of Patent: December 19, 1978Assignee: The Upjohn CompanyInventor: Herman W. Smith
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Patent number: 4127733Abstract: This invention comprises certain analogs of the prostaglandins in which the C-1 carboxyl is replaced by a primary alcohol. Also provided in this invention, are novel chemical processes useful in the preparation of the above prostaglandin analogs. These prostaglandin analogs exhibit prostaglandin-like activity, and are accordingly useful for the same pharmacological purposes as the prostaglandins. Among these purposes are blood pressure lowering, labor induction at term, reproductive-cycle regulation, gastric antisecretory action, and the like.Type: GrantFiled: August 5, 1977Date of Patent: November 28, 1978Assignee: The Upjohn CompanyInventor: Norman A. Nelson