Patents by Inventor Gert Paschelke

Gert Paschelke 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: 4219551
    Abstract: Novel aminoalkoxyphenylpyrrolidones of the following formula show antihypertonic activity: ##STR1## wherein R.sub.1 is H or OCH.sub.3 ;R.sub.2 and R.sub.3 are each, independently, H, C.sub.1-4 alkyl, OH, C.sub.1-6 acyloxy, or C.sub.1-3 alkoxy;m and n are each, independently, integers of from 0 to 3; andA is >O, >S >N--R.sub.5, or >CH--R.sub.5 ; R.sub.5 is H, ##STR2## X is H, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, halogen, CF.sub.3, or OCF.sub.3 ; and Y is O, S or NH;and pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: August 1, 1979
    Date of Patent: August 26, 1980
    Assignee: Schering Aktiengesellschaft
    Inventors: Dieter Seidelmann, Ralph Schmiechen, Gert Paschelke, Bernd Muller
  • Patent number: 4193926
    Abstract: 4-(Polyalkoxyphenyl)-2-pyrrolidones of the formula ##STR1## wherein R.sub.1 and R.sub.2 each are hydrocarbon of up to 18 carbon atoms at least one being other than methyl, a heterocyclic ring, or alkyl of 1-5 carbon atoms substituted by halogen, OH, COOH, alkoxy, alkoxycarbonyl or an amino group; R' is H, alkyl, aryl or acyl; and X is O or S; possess neuropsychotropic activity. The compounds wherein X is O can be produced by saponifying and decarboxylating a corresponding 2-pyrrolidone-3-carboxylic acid alkyl ester or cyclizing a corresponding 3-phenyl-4-amino-butyric acid or alkyl ester thereof. The pyrrolidones can be converted to the corresponding thiopyrrolidones by reaction with phosphorous pentasulfide in the presence of base.
    Type: Grant
    Filed: February 18, 1976
    Date of Patent: March 18, 1980
    Assignee: Schering Aktiengesellschaft
    Inventors: Ralph Schmiechen, Reinhard Horowski, Dieter Palenschat, Gert Paschelke, Helmut Wachtel, Wolfgang Kehr
  • Patent number: 4186129
    Abstract: Novel 5-(substituted phenyl)-oxazolidinones and their sulfur analogs of Formula I ##STR1## wherein R.sub.1 is optionally substituted lower alkyl, cycloalkyl or cycloalkylalkyl;R.sub.2 is hydrogen, optionally substituted lower alkyl, cycloalkyl, cycloalkylalkyl, optionally substituted aryl, optionally substituted aralkyl, alkenyl or a heterocyclic group;R.sub.3 is hydrogen, optionally substituted lower alkyl, alkenyl, alkynyl, optionally substituted aryl, optionally substituted aralkyl, or optionally substituted acyl;R.sub.4 is hydrogen or optionally substituted lower alkyl;R.sub.5 is hydrogen or optionally substituted lower alkyl or optionally substituted lower alkoxycarbonyl; andX is oxygen or sulfur, have valuable pharmacological effects.
    Type: Grant
    Filed: November 30, 1977
    Date of Patent: January 29, 1980
    Assignee: Schering Aktiengesellschaft
    Inventors: Andreas Huth, Ralph Schmiechen, Wolfgang Kehr, Gert Paschelke, Helmut Wachtel, Herbert H. Schneider, Dieter Palenschat
  • Patent number: 4153713
    Abstract: 4-(Polyalkoxyphenyl)-2-pyrrolidones of the formula ##STR1## wherein R.sub.1 and R.sub.2 are hydrocarbon; R.sub.3 is hydrogen or methoxy;R is O-alkyl, O-aryl, O-aralkyl, NH.sub.2, NH-alkyl, NH-aryl, NH-aralkyl, N(alkyl).sub.2, N(aryl).sub.2 or ##STR2## AND X is O or S, are neuropsychotropic agents.
    Type: Grant
    Filed: September 17, 1976
    Date of Patent: May 8, 1979
    Assignee: Schering Aktiengesellschaft
    Inventors: Andreas Huth, Ralph Schmiechen, Wolfgang Kehr, Dieter Palenschat, Gert Paschelke, Helmut Wachtel
  • Patent number: 4080456
    Abstract: Diacylapomorphines of the formula ##STR1## wherein R.sub.1 and R.sub.2 are both acyl of 1-17 carbons are symptomatically effective agents in the treatment of motor disorders of the type associated with a dopamine deficiency of the extrapyramidal system of the central nervous system, e.g. Parkinson's disease. Pharmaceutical compositions containing these compounds as an active ingredient are described, as well as new compunds of the above formula wherein R.sub.1 and R.sub.2 are formyl or acyl of 3-17 carbon atoms.
    Type: Grant
    Filed: November 20, 1975
    Date of Patent: March 21, 1978
    Assignee: Schering Aktiengesellschaft
    Inventors: Dieter Seidelmann, Ralph Schmiechen, Reinhard Horowski, Wolfgang Kehr, Dieter Palenschat, Gert Paschelke
  • Patent number: 4045574
    Abstract: D-homo-20-ketopregnanes of the formula ##STR1## wherein R.sub.1 is oxygen, ##STR2## in which R.sub.5 is hydrogen or lower acyl; R.sub.2 is hydrogen or methyl; R.sub.3 is oxygen, ##STR3## or two hydrogen atoms; R.sub.4 is hydrogen, hydroxy or acyloxy; R.sub.6 is hydrogen or methyl; and R.sub.7 is hydrogen, acetyl, hydroxy or lower acyloxy in the .alpha.- or .beta.-position possess CNS-depressant activity, including anesthesia upon parenteral administration, and are produced by hydrogenating the corresponding steroids having double bonded C.sub.5 and/or C.sub.16 carbon atoms.
    Type: Grant
    Filed: November 29, 1974
    Date of Patent: August 30, 1977
    Assignee: Schering Aktiengesellschaft
    Inventors: Ulrich Kerb, Rudolf Wiechert, Klaus Kieslich, Karl Petzoldt, Helmut Wachtel, Dieter Palenschat, Reinhard Horowski, Gert Paschelke, Wolfgang Kehr
  • Patent number: 4029777
    Abstract: 18-Methyl-19-nor-20-keto steroids of the formula ##STR1## wherein R.sub.1 and R.sub.2 collectively are an oxygen atom, or each is hydrogen, or one of R.sub.1 and R.sub.2 is hydrogen and the other is hydroxy, and R.sub.3 is a ketonic oxygen atom or two hydrogen atoms, possess CNS-depressant activity, especially anesthetic-narcotic activity.
    Type: Grant
    Filed: August 5, 1975
    Date of Patent: June 14, 1977
    Assignee: Schering Aktiengesellschaft
    Inventors: Otto Engelfried, Ulrich Kerb, Rudolf Wiechert, Helmut Wachtel, Dieter Palenschat, Reinhard Horowski, Gert Paschelke, Wolfgang Kehr
  • Patent number: 4020164
    Abstract: Benzomorphans of the formula ##STR1## wherein R.sub.1 is H, CH.sub.3 or C.sub.2 H.sub.5 ; R.sub.2 is CH.sub.3 or C.sub.2 H.sub.5 and R.sub.3 and R.sub.4, which can be alike or different, each are lower alkyl, and the acid addition salts thereof with physiologically acceptable acids have CNS activity, including analgesic, morphine antagonistic, anti-convulsive, muscle relaxant, sedative and neuroleptic activity.
    Type: Grant
    Filed: February 18, 1975
    Date of Patent: April 26, 1977
    Assignee: Schering Aktiengesellschaft
    Inventors: Dieter Rahtz, Eberhard Schroder, Reinhard Horowski, Gert Paschelke, Dieter Palenschat, Helmut Wachtel, Wolfgang Kehr
  • Patent number: 4012495
    Abstract: 4-(Polyalkoxyphenyl)-2-pyrrolidones of the formula ##STR1## wherein R.sub.1 and R.sub.2 each are hydrocarbon of up to 18 carbon atoms or alkyl of 1-5 carbon atoms substituted by halogen, OH, COOH, alkoxy, alkoxycarbonyl, carboxamido or amino or collectively are alkylene of 1-3 carbon atoms, R.sub.3 is H or OCH.sub.3, R.sub.4 is H, alkyl, aryl or acyl and X is O or S possess neuropsychotropic activity. The compounds wherein X is O are produced by saponifying and decarboxylating a corresponding 2-pyrrolidone-3-carboxylic acid alkyl ester or cyclizing a corresponding 3-phenyl-4-aminobutyric acid or alkyl ester thereof. The pyrrolidones are converted to corresponding thiopyrrolidones in a conventional manner, e.g., by reaction with phosphorous pentasulfide in the presence of base.
    Type: Grant
    Filed: March 20, 1975
    Date of Patent: March 15, 1977
    Assignee: Schering Aktiengesellschaft
    Inventors: Ralph Schmiechen, Reinhard Horowski, Dieter Palenschat, Gert Paschelke, Helmut Wachtel, Wolfgang Kehr