Patents by Inventor Henry Laurent

Henry Laurent 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: 5010071
    Abstract: Androstane derivatives of the general Formula I ##STR1## in which R.sub.1 represents a hydrogen atom or a methyl group,X and Y each mean hydrogen atoms or together a carbon-carbon bond, andR.sub.2 symbolizes a hydrogen atom or an alkyl group with 1 to 6 carbon atoms,are pharmaceutically effective substances which have a distinct antiandrogenic effectiveness in topical application.
    Type: Grant
    Filed: July 13, 1989
    Date of Patent: April 23, 1991
    Assignee: Schering Aktiengesellschaft
    Inventors: Dieter Bittler, Henry Laurent, Petra Rach, Michael Topert
  • Patent number: 4956482
    Abstract: Known pregnane derivatives are prepared by esterification of know androstane derivatives to give new esters of Formula III ##STR1## wherein in each case symbolizes a single bond or a double bond,n is 1 or 2,R.sub.1 is hydrogen or methyl,R.sub.2 is hydrogen or formyl, andR.sub.3 is chlorine, hydroxy or an alkanoyloxy group of up to 6 carbon atoms,and reaction of the latter with Ag(I) and formic acid.
    Type: Grant
    Filed: March 20, 1989
    Date of Patent: September 11, 1990
    Assignee: Schering Aktiengesellschaft
    Inventors: Helmut Hofmeister, Klaus Annen, Henry Laurent, Rudolf Wiechert
  • Patent number: 4945064
    Abstract: Estrane and androstane derivatives of formula I ##STR1## wherein X is bromine, iodine, triphenyltin or trialkyltin of 1 to 6 carbon atoms per alkyl radical,Y represents two hydrogen atoms or methylene,Z represents two hydrogen atoms, oxo or alkylenedioxy of 2 to 6 carbon atoms andV is ethylene, vinylene, 1,3-propylene or cyclopropylene,R.sub.1 is hydrogen or a hydrocarbon radical of up to 8 hydrocarbon atoms, optionally interrupted by an oxa group or substituted by an oxo group,R.sub.2 is methyl or ethyl,R.sub.3 and R.sub.4 represent a carbon-carbon bond or R.sub.3 is hydrogen and R.sub.4 is hydrogen or methyl,.DELTA.symbolizes a 4(5)-double bond if Z signifies two hydrogen atoms or an oxo group; or a 5(6)-double bond or, for the estrane derivatives of formula I, also a 5(10)-double bond, if Z is alkylenedioxy,are pharmacologically effective substances or intermediates for preparation thereof.
    Type: Grant
    Filed: January 19, 1988
    Date of Patent: July 31, 1990
    Assignee: Schering Aktiengesellschaft
    Inventors: Helmut Hofmeister, Henry Laurent, Paul E. Schulze, Klaus Annen, Rudolf Wiechert, Kunhard Pollow, Bernhard Manz, Hans-Joerg Grill
  • Patent number: 4925834
    Abstract: A 3-methylene-4-androsten-17-one of formula I ##STR1## wherein R.sub.a represents a hydrogen atom or a saturated or unsaturated straight-chain or branched-chain, optionally substituted alkyl radical with 1-6 carbon atoms, in which R.sub.a is in the alpha- or beta-position, andR.sub.b represents a hydrogen atom, a hydroxyl or an --S(O).sub.n R.sub.c group, in which R.sub.c is a hydrogen atom or an alkyl or acyl group with 1-4 carbon atoms, n=0, 1 or 2, andX represents CH.sub.2, CHF, CHCl or CHBr, in which if R.sub.a is hydrogen and R.sub.b is hydroxyl or R.sub.a and R.sub.b each are hydrogen, X is not CH.sub.2.The new compounds of formula I are suitable for fertility control and for treatment of diseases which are promoted by estrogens.
    Type: Grant
    Filed: April 29, 1988
    Date of Patent: May 15, 1990
    Assignee: Schering Aktiengesellschaft
    Inventors: Rolf Bohlmann, Henry Laurent, David Henderson, Yukishige Nishino
  • Patent number: 4923640
    Abstract: A process for the production of 17.alpha.-ethinyl-17.beta.-hydroxy-18-methyl-4,15-estradien-3-one is described comprising reacting a 17-enolester of formula II ##STR1## wherein R.sub.1 represents an alkyl radical with 1-3 carbon atoms andR.sub.2 represents an acyl or a trialkylsilyl group with 1-10 carbon atomsunder palladium catalysis, with compounds of formula II ##STR2## wherein R.sub.1 represents an alkyl radical with 1-3 carbon atoms, reducing the 17-keto group to the 17-hydroxy group in a manner known in the art, reducing the aromatic A-ring according to Birch, with liquid ammonia, to 3-methoxy-2,5(10),15-estratrien-17.beta.-ol, reoxidizing the 17-hydroxy group to the 17-keto group, ethinylating the 17-keto group and splitting off the 3-enolether to form 17.alpha.-ethinyl-17.beta.-hydroxy-18-methyl-4,15-estradiene-3-one.
    Type: Grant
    Filed: March 31, 1988
    Date of Patent: May 8, 1990
    Assignee: Schering Aktiengesellschaft
    Inventors: Rolf Bohlmann, Henry Laurent, Helmut Hofmeister, Rudolf Wiechert
  • Patent number: 4912098
    Abstract: 6.alpha.-methylhydrocortisones of Formula I ##STR1## wherein R.sub.1 is alkanoyl of 2-6 carbon atoms or benzoyl andR.sub.2 is hydrogen or alkanoyl of 2-6 carbon atomshave valuable antiinflammatory properties.
    Type: Grant
    Filed: September 3, 1987
    Date of Patent: March 27, 1990
    Assignee: Schering Aktiengesellschaft
    Inventors: Klaus Annen, Karl Petzoldt, Henry Laurent, Rudolf Wiechert, Helmut Hofmeister
  • Patent number: 4904462
    Abstract: Novel, multiple-tritiated steroid-20,17-spirolactones of general Formula I ##STR1## wherein --A--B-- is --CH.sub.2 --CH.sub.2 --, --CH.dbd.CH-- or ##STR2## and --C--D-- is ##STR3## R is hydrogen or tritium and n is 0 or 1,are usable as tracer materials for the detection of mineralocorticoid receptors.
    Type: Grant
    Filed: April 12, 1985
    Date of Patent: February 27, 1990
    Assignee: Schering Aktiengesellschaft
    Inventors: Paul-Eberhard Schulze, Klaus Nickisch, Henry Laurent, Kunhard Pollow
  • Patent number: 4891365
    Abstract: 17-Substituted estradienes and estratrienes of Formula I ##STR1## wherein ##STR2## R is alkyl, alkenyl or cycloalkyl of up to 5 carbon atoms if ##STR3## R is hydrogen, alkyl, alkenyl or cycloalkyl of up to 5 carbon atoms if ##STR4## is a CC-single or CC-double bond, exhibit, an aldosterone-antagonistic activity and a strong gestagen potency.
    Type: Grant
    Filed: July 2, 1987
    Date of Patent: January 2, 1990
    Assignee: Schering Aktiengesellschaft
    Inventors: Rudolf Wiechert, Sybille Beier, Walter Elger, Klaus Annen, Klaus Nickisch, Henry Laurent
  • Patent number: 4885117
    Abstract: (Z)-17.alpha.-halovinyl steroids of general Formula I ##STR1## wherein . . . . is a single bond or a double bond,V is a carbon-to-carbon bond or a methylene group,R.sub.1 is a hydrogen atom or a methyl group,X is a chlorine atom, a bromine atom or an iodine atom, andA symbolizes the remainder of the steroid molecule,are prepared by hydrogenating a 17.alpha.-haloethynyl steroid of formula II with diimide. ##STR2## wherein . . . , V, R.sub.1, X and A have the meanings given above. The compounds of Formula I include both known and novel compounds, all of which are pharmacologically active.
    Type: Grant
    Filed: August 11, 1987
    Date of Patent: December 5, 1989
    Assignee: Schering Aktiengesellschaft
    Inventors: Helmut Hofmeister, Henry Laurent, Rudolf Wiechert
  • Patent number: 4868166
    Abstract: 2,2;6,6-diethylene-3-oxo-17alpha-pregn-4-ene-21,17-carbolactones of general formula I, ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group,R.sub.2 represents a methyl or ethyl group and ##STR2## process for their production and their pharmaceutical use.
    Type: Grant
    Filed: February 5, 1988
    Date of Patent: September 19, 1989
    Assignee: Schering Aktiengesellschaft
    Inventors: Dieter Bittler, Klaus Nickisch, Henry Laurent, Rudolf Wiechert, Martin Haberey
  • Patent number: 4859659
    Abstract: Dermatics are claimed which are characterized in that they contain as the active compound one or two 17.beta.-methyl-18-nor steroids of general Formula I ##STR1## wherein is a single bond or a double bond,R.sub.1 is a hydrogen atom or a methyl group, andR.sub.2 is an alkyl group of maximally 6 carbon atoms, optionally substituted by an alkanoyloxy group containing 2-6 carbon atoms.
    Type: Grant
    Filed: December 17, 1986
    Date of Patent: August 22, 1989
    Assignee: Schering Aktiengesellschaft
    Inventors: Dieter Bittler, Henry Laurent, Klaus Nickisch, Petra Rach
  • Patent number: 4789671
    Abstract: 14,17.beta.-ethano-14.beta.-estratriene and estratetraene of Formula I ##STR1## wherein R.sup.1 is a hydrogen atom, a methyl or an acyl group of a monocarboxyclic acid of 1-12 carbon atoms,R.sup.2 is a hydrogen atom or an acyl group of a monocarboxylic acid of 1-12 carbon atoms,R.sup.3 is a hydrogen atom or a methyl group, and ##STR2## is a single or double C--C-bond show strong estrogenic activity.
    Type: Grant
    Filed: February 27, 1987
    Date of Patent: December 6, 1988
    Assignee: Schering Aktiengesellschaft
    Inventors: James R. Bull, Russell I. Thomson, Henry Laurent, Helmut Schroeder, Rudolf Wiechert
  • Patent number: 4789668
    Abstract: The disclosure relates to novel 1.alpha.,7.alpha.-dithio-substituted spirolactones of general Formula I ##STR1## wherein R.sup.1 is C.sub.1-3 -alkyl and C.sub.1-3 -acyl andR.sup.2 is hydrogen, C.sub.1-3 -alkyl and C.sub.1-3 -acyl,to their preparation, and to their use as medicinal agents.The compounds of this invention exhibit anti-aldosterone activity and show the profile of effectiveness of a pro-drug.
    Type: Grant
    Filed: October 17, 1986
    Date of Patent: December 6, 1988
    Assignee: Schering Aktiengesellschaft
    Inventors: Klaus Nickisch, Henry Laurent, Dieter Bittler, Rudolf Wiechert, Wolfgang Losert
  • Patent number: 4777165
    Abstract: 6.alpha.,16.beta.-Dimethyl corticoids of general Formula I ##STR1## wherein the bond .sub.-------- is a single bond or a double bond, andX is a hydrogen atom, a fluorine atom, a chlorine atom, or a bromine atom,Z is a hydrogen atom or, jointly with X, is a carbon-carbon bond,R.sub.1 is a formyl group, an alkanoyl group or alkoxyalkyl group of 2-8 carbon atoms, or a benzoyl group, andY is a hydrogen atom or a methyl group,are pharmacologically active compounds.
    Type: Grant
    Filed: June 17, 1987
    Date of Patent: October 11, 1988
    Assignee: Schering Aktiengesellschaft
    Inventors: Klaus Annen, Henry Laurent, Helmut Hofmeister, Rudolf Wiechert, Michael Topert
  • Patent number: 4738957
    Abstract: Estriol esters of Formula I ##STR1## wherein R is, in each case, the residue of an aliphatic monocarboxylic acid of 3-10 carbon atoms,surpass estriol in strength and duration of estrogen activity.
    Type: Grant
    Filed: March 21, 1986
    Date of Patent: April 19, 1988
    Assignee: Schering Aktiengesellschaft
    Inventors: Henry Laurent, Dieter Bittler, Sybille Beier, Walter Elger
  • Patent number: 4725426
    Abstract: 17.alpha.-bromo-.alpha. and 17.alpha.-iodo-vinyl-estrane derivatives of general formula I ##STR1## wherein X is a bromine or iodine atom in Z or E position,R.sup.1 is hydrogen, hydroxy or acyloxy with up to 3 C atoms,R.sup.2 is hydrogen, alkyl with up to 3 C atoms and alkanoyl and aroyl with up to 7 C atoms,R.sup.3 is hydrogen or methyl,R.sup.4 is a hydrogen atom in the .alpha. or .beta. position,R.sup.5 is hydrogen, methyl or methoxy andR.sup.6 is hydrogen or methyl,are pharmacologically effective with a profile of action like ethinylestradiol and in the form of their radioactively labeled compounds are also valuable diagnostic media.The Z-isomers can be prepared by a new process by reaction of the corresponding 17.alpha.-ethinyl steroids with trialkyl (or phenyl) tin hydride with addition of a free radical former.
    Type: Grant
    Filed: July 25, 1985
    Date of Patent: February 16, 1988
    Assignee: Schering Aktiengesellschaft
    Inventors: Helmut Hofmeister, Henry Laurent, Paul E. Schulze, Rudolf Wiechert, Walter Elger, Kunhard Pollow, Hans J. Grill
  • Patent number: 4719054
    Abstract: A process and novel starting materials for the production of 17.alpha.-ethynyl-17.beta.-hydroxy-18-methyl-4,15-estradien-3-one of Formula I ##STR1## are disclosed. Novel 17-ketone starting materials have the Formula II ##STR2## wherein R is an alkyl residue of 1-3 carbon atoms and ##STR3## is the grouping ##STR4## wherein R' is an acyl group of up to 10 carbon atoms.
    Type: Grant
    Filed: May 9, 1986
    Date of Patent: January 12, 1988
    Assignee: Schering Aktiengesellschaft
    Inventors: Helmut Hofmeister, Henry Laurent, Hans-Peter Lorenz, Rudolf Wiechert
  • Patent number: 4708823
    Abstract: Known pregnane derivatives are prepared by esterificiation of known androstane derivatives to give new ester of Formula III ##STR1## wherein in each case symbolizes a single bond or a double bond,n is 1 or 2,R.sub.1 is hydrogen or methyl,R.sub.2 is hydrogen or formyl, andR.sub.3 is chlorine, hydroxy or an alkanoyloxy group of up to 6 carbon atoms,and reaction of the latter with Ag(I) and formic acid.
    Type: Grant
    Filed: September 17, 1985
    Date of Patent: November 24, 1987
    Assignee: Schering Aktiengesellschaft
    Inventors: Helmut Hofmeister, Klaus Annen, Henry Laurent, Rudolf Wiechert
  • Patent number: 4701451
    Abstract: Compounds of Formula I ##STR1## wherein the bond is a single bond or a double bond,X is hydrogen, fluorine, chlorine, or bromine,R.sub.1 is formyl, alkanoyl or alkoxyalkyl each of which contains 2-8 carbon atoms, or benzoyl, andY is chlorine, hydroxy, formyl, alkanoyloxy of 2-8 carbon atoms, or benzoyloxy,have valuable anti-inflammatory properties.
    Type: Grant
    Filed: October 29, 1985
    Date of Patent: October 20, 1987
    Assignee: Schering Aktiengesellschaft
    Inventors: Klaus Annen, Henry Laurent, Helmut Hofmeister, Rudolf Wiechert, Michael Toepert, Hans Wendt
  • Patent number: 4681875
    Abstract: Estriol esters of Formula I ##STR1## wherein R, in each case, means the residue of a monocarboxylic acid of 2-10 carbon atoms.The novel estriol esters surpass estriol in strength and duration of estrogen effect.
    Type: Grant
    Filed: May 16, 1985
    Date of Patent: July 21, 1987
    Assignee: Schering Aktiengesellschaft
    Inventors: Henry Laurent, Dieter Bittler, Sybille Beier, Walter Elger