Patents by Inventor Werner Skuballa

Werner Skuballa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4567195
    Abstract: Azaprostacyclins of Formula I ##STR1## wherein R.sub.1 is hydrogen, alkyl, cycloalkyl, aryl, a heterocyclic residue, or a phenacyl residue optionally substituted on the phenyl ring by bromine, phenyl, alkoxy, or dialkoxy,W is a free or functionally modified carbonyl group or a ##STR2## wherein R.sub.8 is hydrogen or alkyl of 1-5 carbon atoms and R.sub.9 is hydrogen or a readily cleavable ether or acyl residue and wherein the OR.sub.9 -group can be in the .alpha.- or .beta.-position,R.sub.2 is a free or functionally modified hydroxy group,R.sub.3 and R.sub.4 each independently is hydrogen, alkyl of 1-5 carbon atoms, or fluorine,D is alkylene of 1-2 carbon atoms which can be substituted by alkyl groups of 1-5 carbon atoms,R.sub.5 is hydrogen or alkyl of 1-2 carbon atoms or, when D is alkylene of 1 or 2 carbon atoms, R.sub.5, together with R.sub.6, represents a bond,R.sub.6 and R.sub.7 each independently is hydrogen or alkyl of 1-2 carbon atoms, whereinR.sub.6 (R.sub.7) is halogen when R.sub.7 (R.sub.
    Type: Grant
    Filed: March 21, 1984
    Date of Patent: January 28, 1986
    Assignee: Schering, Aktiengesellschaft
    Inventors: Norbert Schwarz, Werner Skuballa, Helmut Vorbrueggen, Jorge Casals-Stenzel, Ekkehard Schillinger, Michael H. Town
  • Patent number: 4560786
    Abstract: .DELTA..sup.8,9 -Prostane derivatives of Formula I ##STR1## wherein R.sub.1 is CH.sub.2 OH or ##STR2## wherein R.sub.2 is hydrogen, alkyl, cycloalkyl, aryl, or a heterocyclic residue; or R.sub.1 is ##STR3## wherein R.sub.3 is an acid residue or R.sub.2 ; A is --CH.sub.2 --CH.sub.2 -- or cis--CH.dbd.CH;B is --CH.sub.2 --CH.sub.2 --, trans--CH.dbd.CH-- or --C.tbd.C--W is a free or functionally modified hydroxymethylene group or free or functionally modified ##STR4## wherein the OH--group can be in the .alpha.-- or .beta.-- position; D and E jointly are a direct bond orD is straight chain or branched alkylene or alkenylene of 1-10 carbon atoms which can optionally be substituted by fluorine atoms, and E is oxygen, sulfur, a direct bond, --C.tbd.C-- or --CR.sub.6 .dbd.CR.sub.7 --, wherein R.sub.6 and R.sub.7 differ from each other and each is hydrogen, chlorine or alkyl;R.sub.4 is free or functionally modified hydroxy andR.sub.
    Type: Grant
    Filed: June 24, 1982
    Date of Patent: December 24, 1985
    Assignee: Schering Aktiengesellschaft
    Inventors: Werner Skuballa, Bernd Raduechel, Norbert Schwarz, Helmut Vorbrueggen, Walter Elger, Olaf Loge, Michael-Harold Town
  • Patent number: 4552875
    Abstract: Carbacyclinamides of Formula I ##STR1## wherein R.sub.1 is NHR.sub.4, wherein R.sub.4 is H, --(CH.sub.2).sub.n --R.sub.8 or straight-chained or branched aliphatic groups of 1-10 carbon atoms, cycloalkyl of 3-10 carbon atoms, aryl, or lower mono- or polyhydroxyalkyl of 2-8 carbon atoms, or R.sub.1 is NR.sub.4 R.sub.5 wherein R.sub.4 and R.sub.5 each are straight-chained or branched, lower, mono- or polyhydroxyalkyl of 2-8 carbon atoms, or R.sub.4 and R.sub.5 together with the adjoining N-atom form a 5- or 6-membered heterocycle which can optionally contain additional hetero atoms and can be substituted; or R.sub.1 is NR.sub.4 R.sub.5 wherein R.sub.4 is an aliphatic group of 1-10 carbon atoms, cycloalkyl of 3-10 carbon atoms, and R.sub.5 is straight-chained or branched aliphatic group of 1-10 carbon atoms, cycloalkyl of 3-10 carbon atoms, aryl, or lower, mono- or polyhydroxyalkyl of 2-8 carbon atoms;n is 1-4;R.sub.8 is --CONH.sub.2 or --N(C.sub.1 -C.sub.4 -alkyl).sub.2 ;R.sub.
    Type: Grant
    Filed: July 1, 1983
    Date of Patent: November 12, 1985
    Assignee: Schering Aktiengesellschaft
    Inventors: Werner Skuballa, Bernd Raduechel, Helmut Vorbrueggen, Gerda Mannesmann, Bob Nieuweboer, Michael H. Town
  • Patent number: 4497830
    Abstract: Compounds of Formula I ##STR1## wherein X is oxygen or CH.sub.2 ;A is CH.sub.2 --CH.sub.2, trans-CH.dbd.CH or C.tbd.C;W is free or functionally modified hydroxymethylene or free or functionally modified ##STR2## and the OH groups may be in the .alpha.- or the .beta.-position; D is straight chain or branched, saturated or unsaturated hydrocarbon aliphatic of from 1 to 10 carbon atoms, which may be substituted by fluorine;E is C.tbd.C or CR.sub.3 .dbd.CR.sub.4, R.sub.3 and R.sub.4 being different and being hydrogen or alkyl of 1 to 5 carbon atoms;R.sub.1 is free or functionally modified hydroxy; andR.sub.2 is alkyl, cycloalkyl, optionally substituted aryl or heterocyclic,have valuable pharmacological properties, e.g., hypotensive and bronchodilatory characteristics. They can furthermore be used for prophylaxis and therapy of coronary infarct and as a treatment for stroke. They are produced by means of reduction of the corresponding 1-carbonic acid derivatives.
    Type: Grant
    Filed: May 24, 1982
    Date of Patent: February 5, 1985
    Assignee: Schering Aktiengesellschaft
    Inventors: Werner Skuballa, Bernd Raduechel, Helmut Vorbrueggen, Jorge Casals-Stenzel, Ekkehard Schillinger, Gerda Mannesmann, Bob Nieuweboer
  • Patent number: 4487953
    Abstract: Compounds of Formula (I) ##STR1## wherein the 9-bromine atom can be in the .alpha.- or .beta.-position,R.sub.1 is CH.sub.2 OH or C(O)OR.sub.2, wherein R.sub.2 is hydrogen, alkyl, cycloalkyl, aryl, or a heterocyclic residue; or R.sub.1 is C(O)NHR.sub.3 wherein R.sub.3 is an acid residue or R.sub.2 ; andA is --CH.sub.2 --CH.sub.2 -- or cis --CH.dbd.CH--;B is --CH.sub.2 --CH.sub.2 --, trans --CH.dbd.CH--, or --C.tbd.C--;W is a free or functionally modified hydroxymethylene group or a free or functionally modified ##STR2## wherein the OH-group can be in the .alpha.- or .beta.-position; D and E together are a direct bond; orD is straight-chain, branched, or cyclic alkylene of 1-10 carbon atoms, optionally substituted by fluorine atoms; andE is oxygen, sulfur, a direct bond --C.tbd.C--, or --CR.sub.6 .dbd.CR.sub.7 --, wherein R.sub.6 and R.sub.7 are different from each other and each is hydrogen, chlorine, or C.sub.1 -C.sub.4 -alkyl;R.sub.4 is a free or functionally modified hydroxy group;R.sub.
    Type: Grant
    Filed: December 6, 1982
    Date of Patent: December 11, 1984
    Assignee: Schering Aktiengesellschaft
    Inventors: Werner Skuballa, Bernd Raduechel, Norbert Schwarz, Helmut Vorbrueggen, Walter Elger
  • Patent number: 4454339
    Abstract: 9-Fluoroprostane derivatives of Formula I ##STR1## wherein R.sub.1 is CH.sub.2 OH or ##STR2## wherein R.sub.2 is hydrogen, alkyl, cycloalkyl, aryl, or a heterocyclic residue; or R.sub.1 is the residue ##STR3## wherein R.sub.3 is an acid residue or R.sub.2 and A is --CH.sub.2 --CH.sub.2 -- or cis--CH.dbd.CH--,B is --CH.sub.2 --CH.sub.2 --, trans--CH.dbd.CH-- or --C.tbd.C,W is a free or functionally modified hydroxymethylene group wherein the OH-group can be in the .alpha.- or .beta.-position,D and E jointly are a direct bond orD is straight-chain or branched alkylene or alkenylene of 1-10 carbon atoms which can optionally be substituted by fluorine atoms, and E is oxygen or sulfur, a direct bond, --C.tbd.C-- or --CR.sub.6 .dbd.CR.sub.7 -- wherein R.sub.6 and R.sub.7 differ from each other and each is hydrogen, chlorine, or alkyl,R.sub.4 is a free or functionally modified hydroxy group, andR.sub.5 is hydrogen, an optionally substituted aliphatic group, e.g.
    Type: Grant
    Filed: July 6, 1982
    Date of Patent: June 12, 1984
    Assignee: Schering Aktiengesellschaft
    Inventors: Werner Skuballa, Bernd Raduechel, Norbert Schwarz, Helmut Vorbrueggen, Walter Elger, Olaf Loge, Michael-Harold Town
  • Patent number: 4446147
    Abstract: Azaprostacyclins of Formula I ##STR1## wherein R.sub.1 is hydrogen, alkyl, cycloalkyl, aryl, a heterocyclic residue, or a phenacyl residue optionally substituted on the phenyl ring by bromine, phenyl, alkoxy, or dialkoxy,W is a free or functionally modified carbonyl group or a ##STR2## wherein R.sub.8 is hydrogen or alkyl of 1-5 carbon atoms and R.sub.9 is hydrogen or a readily cleavable ether or acyl residue and wherein the OR.sub.9 -group can be in the .alpha.- or .beta.-position,R.sub.2 is a free or functionally modified hydroxy group.
    Type: Grant
    Filed: February 22, 1982
    Date of Patent: May 1, 1984
    Assignee: Schering Aktiengesellschaft
    Inventors: Norbert Schwarz, Werner Skuballa, Helmut Vorbrueggen, Jorge Casals-Stenzel, Ekkehard Schillinger, Michael H. Town
  • Patent number: 4444788
    Abstract: Compounds of the formula ##STR1## wherein the 9-chlorine atom can be in the .alpha.- or .beta.-position,R.sub.1 is OR.sub.2, or NHR.sub.3 wherein R.sub.3 is H or the acyl group ofa C.sub.1-15 hydrocarbon carboxylic or sulfonic acid;A is --CH.sub.2 --CH.sub.2 -- or cis--CH.dbd.CH--,B is --CH.sub.2 --CH.sub.2 --,trans--CH.dbd.CH--, or --C.tbd.C--, ##STR2## wherein the OH-group in each case can be in the .alpha.- or .beta.-position, and can be etherified or esterified by tetrahydropyranyl, tetrahydrofuranyl, .alpha.-ethoxyethyl, trimethylsilyl dimethyl, tert-butylsilyl, tribenzylsilyl, acetyl, propionyl, butyryl or benzoyl;D and E together represent a direct bond orD is a straight-chain or branched alkylene group of 1-10 carbon atoms, optionally substituted by fluorine, andE is oxygen or sulfur or a direct bond, andR.sub.4 is hydroxy or hydroxy etherified or esterified as defined for W above;R.sub.5 is a C.sub.1-10 hydrocarbon aliphatic group; a C.sub.
    Type: Grant
    Filed: June 10, 1982
    Date of Patent: April 24, 1984
    Assignee: Schering Aktiengesellschaft
    Inventors: Werner Skuballa, Bernd Raduechel, Helmut Vorbrueggen, Walter Elger, Olaf Loge, Ekkehard Schillinger
  • Patent number: 4423067
    Abstract: Carbacyclin derivatives of Formula I ##STR1## wherein R.sub.1 is OR.sub.2, wherein R.sub.2 is hydrogen, alkyl, cycloalkyl, aryl, a heterocyclic residue, or NHR.sub.3, wherein R.sub.3 is an acid residue or hydrogen;X is oxygen;A is --CH.sub.2 --CH.sub.2 --, trans--CH.dbd.CH--, or --C.tbd.C--;W is free or functionally modified hydroxymethylene or free or functionally modified ##STR2## wherein the OH-group can be in the .alpha.- or .beta.-position; D is a straight-chain or branched, saturated or unsaturated aliphatic group of 1-10 carbon atoms, which can optionally be substituted by fluorine atoms, 1,2-methylene, 1,1-trimethylene;E is --C.tbd.C-- or --CR.sub.6 .dbd.CR.sub.7 -- wherein R.sub.6 and R.sub.7 are hydrogen or alkyl of 1-5 carbon atoms;R.sub.4 is an aliphatic group, cycloalkyl, optionally substituted aryl, or a heterocyclic group;R.sub.5 is free or functionally modified hydroxy and,when R.sub.
    Type: Grant
    Filed: December 21, 1981
    Date of Patent: December 27, 1983
    Assignee: Schering Aktiengesellschaft
    Inventors: Werner Skuballa, Bernd Raduchel, Norbert Schwarz, Helmut Vorbruggen, Jorge Casals-Stenzel, Ekkehard Schillinger, Michael H. Town
  • Patent number: 4378370
    Abstract: Prostacyclin derivatives of the formula ##STR1## wherein R.sub.1 is OR.sub.3 wherein R.sub.3 is hydrogen or alkyl of 1-10 carbon atoms, or R.sub.1 is NHR.sub.4 wherein R.sub.4 is alkanoyl or alkanesulfonyl,B is alkylene of 1-5 carbon atoms,A is --CH.sub.2 --CH.sub.2 --, cis--CH.dbd.CH--, or trans--CH.dbd.CH--,W is hydroxymethylene or ##STR2## wherein the OH-group is optionally substituted by alkanoyl of 1-4 carbon atoms and the free or substituted OH-group can be in the .alpha.- or .beta.- position,R.sub.2 is alkyl of 1-6 carbon atoms optionally substituted by phenyl, or R.sub.2 is phenyl,R.sub.5 is hydroxy optionally substituted by alkanoyl of 1-4 carbon atoms,R.sub.6 is hydrogen, fluorine, or alkyl of 1-4 carbon atomsor when R.sub.3 is hydrogen, a salt thereof with a physiologically compatible base,have pharmacological activity e.g., blood pressure-lowering and bronchodilatory effects.
    Type: Grant
    Filed: October 6, 1981
    Date of Patent: March 29, 1983
    Assignee: Schering Aktiengesellschaft
    Inventors: Helmut Vorbrueggen, Bernd Raduechel, Werner Skuballa, Gerda Mannesmann, Jorge Casals-Stenzel, Ekkehard Schillinger
  • Patent number: 4364950
    Abstract: 5-cyano-prostacyclins of the formula ##STR1## wherein R.sub.1 is OR.sub.2 or NHR.sub.3 ; R.sub.2 and R.sub.3 each independently is (a) H, (b) C.sub.1-10 -alkyl, (c) C.sub.1-10 -alkyl substituted by halo, C.sub.1-4 -alkoxy or phenyl, 1-naphthyl or 2-naphthyl, each optionally substituted as defined below, (d) C.sub.4-10 -cycloalkyl, (e) C.sub.4-10 -cycloalkyl substituted by C.sub.1-4 -alkyl, (f) phenyl, 1-naphthyl or 2-naphthyl, (g) phenyl, 1-naphthyl or 2-naphthyl substituted by 1-3 halogen atoms, phenyl, 1-3 alkyl groups of 1-4 C atoms each, or a chloromethyl-, fluoromethyl-, trifluoromethyl-, carboxyl-, hydroxy- or alkoxy-group of 1-4 C atoms, or (h) an aromatic, 5- or 6-membered heterocyclic ring containing one hetero atom which is O, N or S, the remaining atoms being carbon; R.sub.3 also possibly being an acyl group of a C.sub.
    Type: Grant
    Filed: November 2, 1981
    Date of Patent: December 21, 1982
    Assignee: Schering Aktiengesellschaft
    Inventors: Werner Skuballa, Helmut Vorbruggen, Bernd Raduchel, Jorge Casals-Stenzel, Ekkehard Schillinger, Michael H. Town
  • Patent number: 4364951
    Abstract: Prostane derivatives of the formula ##STR1## wherein B is straight-chain or branched alkylene of 1-10 carbon atoms,A is --CH.sub.2 --CH.sub.2 --, trans--CH.dbd.CH--, or --C.tbd.C--;W is hydroxymethylene or a ##STR2## wherein the OH-group can be in the .alpha.- or .beta.-position, and is optionally modified by replacement of the H atom with an ether or acyl group which is conventional for such replacements in prostaglandins and which is readily cleavable at physiological pH's;D and E together are a direct bond orD is straight-chain or branched alkylene of 1-10 carbon atoms, or, such an alkylene of 4-10 carbon atoms containing a double bond in the 2- or 3- position, all of which can optionally be substituted by fluorine, 1,2-methylene, 1,1-trimethylene, or methoxy;E is oxygen, sulfur, --C.tbd.C-- or a direct bond;R.sub.2 is C.sub.1-10, C.sub.2-10 alkenyl,each of which optionally is substituted phenyl, 1-naphthyl or 2-naphthyl, each of which is substituted as defined below; C.sub.
    Type: Grant
    Filed: November 2, 1981
    Date of Patent: December 21, 1982
    Assignee: Schering Aktiengesellschaft
    Inventors: Werner Skuballa, Helmut Vorbrueggen, Olaf Loge, Peter Vischer, Bernd Raduchel
  • Patent number: 4359581
    Abstract: A process for preparing a 3-oxo-7-hydroxy-bicyclo[3,3,0]octan-2-ylcarboxylic acid ester of the formula ##STR1## wherein R.sub.1 is alkyl of 1-6 carbon atoms or phenalkyl of 7-10 carbon atoms andR.sub.2 is hydrogen, alkyl or 1-6 carbon atoms, phenalkyl of 7-10 carbon atoms, tetrahydropyranyl, tetrahydrofuranyl, .alpha.-ethoxyethyl, tri-C.sub.1-4 -alkylsilyl, wherein the alkyl moieties can optionally be substituted by phenyl, or ##STR2## wherein R.sub.3 is alkyl of 1-6 carbon atoms or aryl of 6-12 carbon atoms, comprises oxidizing the corresponding 7-hydroxy-2-oxabicyclo [3,3,0]octan-3-ylideneacetic acid ester of the formula ##STR3## wherein R.sub.1 and R.sub.2 are as defined above, to form the corresponding ketone, reacting the latter with a base which opens the ether oxygen containing ring, and then reducing the resultant product to prepare the 3-oxo-7-hydroxy-bicyclo[3,3,0]octan-2-ylcarboxylic acid ester.
    Type: Grant
    Filed: June 5, 1981
    Date of Patent: November 16, 1982
    Assignee: Schering AG
    Inventors: Werner Skuballa, Bernd Raduechel, Helmut Vorbrueggen
  • Patent number: 4346228
    Abstract: 11-Oxoprostaglandin derivatives of the formula ##STR1## wherein R.sub.2 is a hydrogen atom or alkyl of 1-5 carbon atoms,R.sub.3 is alkyl of 1-5 carbon atoms, alkylaryl, cycloalkyl of 5-6 ring carbon atoms and a total of 5-10 carbon atoms; benzodioxol-2-yl, phenyl, naphthyl or phenyl or naphthyl substituted by phenyl, halogen, alkyl of 1-4 carbon atoms, chloromethyl, fluoromethyl, carboxyl or hydroxy;A is --CH.sub.2 --CH.sub.2 --, cis--CH.dbd.CH--, or trans--CH.dbd.CH--;B is --CH.sub.2 --CH.sub.2 -- or trans--CH.dbd.CH--,D and E collectively are a direct bond or D is alkylene of 1-5 carbon atoms and E is an oxygen or sulfur atom; esters thereof; readily cleavable 9,15 and 9,15 ethers thereof; methanesulfonylamides thereof, and physiologically acceptable salts thereof with bases; possess the activity of the corresponding natural prostaglandins with a surprisingly longer duration of effectiveness, greater selectivity, and better effects, and can be produced, e.g.
    Type: Grant
    Filed: April 15, 1976
    Date of Patent: August 24, 1982
    Assignee: Schering Aktiengesellschaft
    Inventors: Werner Skuballa, Bernd Raduechel, Helmut Vorbrueggen, Walter Elger, Olaf Loge, Eckehard Schillinger
  • Patent number: 4315013
    Abstract: Prostane derivatives of the formula ##STR1## wherein R.sub.1 is (a) hydrogen, (b) C.sub.1-10 alkyl, (c) C.sub.1-10 alkyl substituted by halogen; C.sub.1-4 alkoxy; C.sub.6-10 aryl; C.sub.6-10 aryl substituted by 1-3 halogen atoms, a phenyl group, 1-3 C.sub.1-4 alkyl groups or a chloromethyl, fluoromethyl, trifluoromethyl, carboxy, hydroxy or C.sub.1-4 alkoxy group; di-C.sub.1-4 -alkylamino; or tri-C.sub.1-4 alkylammonium; (d) C.sub.4-10 cycloalkyl, (e) C.sub.4-10 cycloalkyl substituted by C.sub.1-4 alkyl, (f) C.sub.6-10 aryl, (g) C.sub.6-10 aryl substituted by 1-3 halogen atoms, a phenyl group, 1-3 C.sub.1-4 alkyl groups or a chloromethyl, fluoromethyl, trifluoromethyl, carboxy, hydroxy or C.sub.1-4 alkoxy group, or (h) an aromatic heterocycle of 5 or 6 ring atoms one of which is O, N or S;W is hydroxymethylene or RO-methylene; or ##STR2## wherein OH or OR is in the .alpha.
    Type: Grant
    Filed: February 19, 1980
    Date of Patent: February 9, 1982
    Assignee: Schering, Aktiengesellschaft
    Inventors: Werner Skuballa, Bernd Raduechel, Helmut Vorbrueggen, Gerda Mannesmann, Wolfgang Losert, Jorge Casals
  • Patent number: 4256745
    Abstract: Prostan-1-ol esters and intermediates for their preparation are described; the former compounds exhibit improved organ specificity and a longer duration of activity at lower dosages than the corresponding non-esterified prostaglandins and are useful, inter alia, in triggering abortion, inducing labor and regulating the menstrual cycle.
    Type: Grant
    Filed: March 2, 1978
    Date of Patent: March 17, 1981
    Assignee: Schering Aktiengesellschaft
    Inventors: Werner Skuballa, Bernd Raduchel, Helmut Vorbruggen, Walter Elger, Olaf Loge, Eckehard Schillinger
  • Patent number: 4235930
    Abstract: Prostane derivatives of the formula ##STR1## wherein R.sub.1 is the residue OR.sub.2 and R.sub.2 is hydrogen, alkyl, cycloalkyl, aryl, or a heterocyclic residue; or is NHR.sub.3 wherein R.sub.3 is an acyl group derived from a hydrocarbon carboxylic or sulfonic acid of up to 15 carbon atoms;A is --CH.sub.2 --CH.sub.2 -- or cis--CH.dbd.CH--Z is carbonyl or ##STR2## wherein the OR.sub.4 group can be in the .alpha.- or .beta.-position and R.sub.4 is H or a hydroxy-protective groupX Y is ##STR3## wherein R.sub.4 is as defined above, --CH.sub.2 -- CH.sub.2 -- or --CH.sub.2 --CH-- wherein R.sub.5 is alkyl or 1-5 carbon atoms, if Z is R.sub.5 carbonyl or ##STR4## X Y represents --CH.dbd.CH-- if Z is carbonyl: R.sub.6, R.sub.7, R.sub.8, R.sub.9 and R.sub.10 each independently is hydrogen or an alkyl group of 1-5 carbon atoms; andR.sub.11 is alkyl of 1-5 carbon atoms;and if R.sub.
    Type: Grant
    Filed: June 29, 1978
    Date of Patent: November 25, 1980
    Assignee: Schering, A.G.
    Inventors: Werner Skuballa, Bernd Raduchel, Helmut Vorbruggen, Walter Elger, Olaf Loge, Ekkehard Schillinger
  • Patent number: 4219479
    Abstract: Stabilized prostacyclins having a wide range of pharmacological activity and long duration of such activity, have the formula ##STR1## wherein R.sub.1 is (a) OR.sub.3, wherein R.sub.3 is hydrogen, alkyl, cycloalkyl, aryl or a heterocyclic residue; or (b) NHR.sub.4 wherein R.sub.4 is an acid residue;B is straight-chain or branched alkylene of 2-10 carbon atoms;A is --CH.sub.2 --CH.sub.2 --, cis--CH.dbd.CH--, trans--CH.dbd.CH-- or --C.tbd.C--,W is free or functionally modified hydroxymethylene or free or functionally modified ##STR2## wherein the OH-group can be in the .alpha.- or .beta.-position; D and E together are a direct bond; orD is straight-chain or branched alkylene of 1-5 carbon atoms; andE is oxygen or sulfur or a direct bond,R.sub.2 is alkyl, cycloalkyl, optionally substituted aryl or a heterocyclic group; andR.sub.5 is free or functionally modified hydroxy; and when R.sub.3 is hydrogen, the salts thereof with physiologically compatible bases.
    Type: Grant
    Filed: November 24, 1978
    Date of Patent: August 26, 1980
    Assignee: Schering Aktiengesellschaft
    Inventors: Helmut Vorbruggen, Werner Skuballa, Bernd Raduchel, Wolfgang Losert, Olaf Loge, Bernd Muller, Gerda Mannesmann
  • Patent number: 4191823
    Abstract: In a process for the preparation of an oxaprostaglandin intermediate of the formula ##STR1## wherein R.sub.1 is hydrogen, alkyl, or a free or functionally modified hydroxy group;R.sub.2 and R.sub.3 are the same or different, and each is hydrogen, halogen or alkyl;R.sub.4 is alkyl or optionally substituted aryl; andn is 0, 1, 2 or 3;which comprises reacting an aldehyde of the formula ##STR2## wherein R.sub.1 is as defined above with an anion of the formula ##STR3## wherein n, R.sub.2, R.sub.3 and R.sub.4 are as defined above; andR.sub.5 is alkyl;an improvement is provided wherein the anion is added to the reaction medium in a form which consists essentially of its crystalline alkali metal salt of the formula ##STR4## wherein A is an alkali metal atom.
    Type: Grant
    Filed: December 1, 1977
    Date of Patent: March 4, 1980
    Assignee: Schering Aktiengesellschaft
    Inventors: Werner Skuballa, Bernd Raduchel, Helmut Vorbrueggen
  • Patent number: 4191694
    Abstract: Prostane derivatives of the formula ##STR1## wherein R.sub.1 is OR.sub.2 or NHR.sub.3 ;R.sub.2 is hydrogen, C.sub.1-10 alkyl, C.sub.4-10 cycloalkyl, C.sub.6-10 aryl, or a 5 or 6 membered heterocyclic ring having 1-3 hetero atoms selected from O, N and S;R.sub.3 is the residue of a hydrocarbon carboxylic or sulfonic acid of 1-15 carbon atoms;W is (a) an OH-substituted methylene group, (b) a ##STR2## wherein the OH-groups in (a) or (b) can be in the .alpha.- or .beta.-position, or (c) such a group wherein the H atom of the OH group is replaced by the residue of a hydrocarbon carboxylic or sulfonic acid of 1-15 carbon atoms or by a conventional etherifying OH-blocking group;R.sub.4 is OH or hydroxy whose H atom is replaced as defined for W; andR.sub.5, R.sub.6, R.sub.7, R.sub.8, R.sub.9, R.sub.10 and R.sub.11 each independently is hydrogen or alkyl of 1-5 carbon atoms; or R.sub.9 and R.sub.10 together represent a direct bond; and, when R.sub.11 is alkyl, R.sub.
    Type: Grant
    Filed: July 26, 1978
    Date of Patent: March 4, 1980
    Assignee: Schering Aktiengesellschaft
    Inventors: Werner Skuballa, Bernd Raduchel, Norbert Schwarz, Helmut Vorbruggen, Bernd Muller, Gerda Mannesmann, Olaf Loge, Ekkehardt Schillinger, Jorge Casals-Stenzel