Patents Represented by Attorney, Agent or Law Firm Paul A. Thompson
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Patent number: 6436368Abstract: Described is a process for preparing beclomethsaone dipropionate Freon® clathrate comprising the use of an agent which selectively binds methanol to selectively remove methanol from a mixture of methanol and Freon® 11 containing beclomethasone dipropionate.Type: GrantFiled: October 17, 2000Date of Patent: August 20, 2002Assignee: Schering CorporationInventors: George M. Love, Stanley Rosenhouse
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Patent number: 6143758Abstract: Novel compounds, such as: ##STR1## are disclosed. Also disclosed are methods for inhibiting the abnormal growth of cells, for inhibiting farnesyl protein transferase and for treating cancers using the novel compounds.Type: GrantFiled: November 12, 1998Date of Patent: November 7, 2000Assignee: Schering CorporationInventors: Ronald J. Doll, Joseph M. Kelly, Alan K. Mallams, F. George Njoroge, Stacy W. Remiszewski, Arthur G. Taveras
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Patent number: 6093812Abstract: This invention provides an improved process for producing azetidinones. More particularly, this invention provides the steps of producing an trans-azetidinone represented by the formula ##STR1## from a carboxylic acid R.sup.2 --D--CH.sub.2 COOH, an aldehyde R.sup.1 --A--CHO and an amine RNH.sub.2, by the steps of: (a1) converting a carboxylic acid to the corresponding acid chloride; (b1) deprotonating a chiral oxazolidinone and treating the resulting anion with the product of step (a1); (c1) enolizing the product of step (b1) and condensing with the aldehyde; (d1) hydrolyzing the product of step (c1); (e1) condensing the product of step (d1) with the amine; and (f1) cyclizing the product of step (e1). Alternatively, the process comprises (a2) enolizing the product of step (b1) and condensing, in the presence of a Lewis acid, with a Schiff's base prepared from the aldehyde and the amine; and (b2) cyclizing the product of step (a2).Type: GrantFiled: January 7, 1994Date of Patent: July 25, 2000Assignee: Schering CorporationInventors: Tiruvettipuram K. Thiruvengadam, Chou-Hong Tann, Junning Lee, Timothy McAllister, Cesar Colon, Derek H. R. Barton, Ronald Breslow, Anantha Sudhakar
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Patent number: 5874442Abstract: "Novel compounds, such as: ##STR1## are disclosed. Also disclosed are methods for inhibiting the abnormal growth of cells, for inhibiting farnesyl protein transferase and for treating cancers using the novel compounds.Type: GrantFiled: December 12, 1996Date of Patent: February 23, 1999Assignee: Schering-Plough CorporationInventors: Ronald J. Doll, Joseph M. Kelly, Alan K. Mallams, F. George Njoroge, Stacy W. Remiszewski, Arthur G. Taveras
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Patent number: 5750745Abstract: Described is a process for the regioselective dehydration of 11-hydroxy steroids using PCl.sub.5, PCl.sub.3, POCl.sub.3 or either SO.sub.2 Cl.sub.2 and imidazole, or PPh.sub.3 and CCl.sub.4. The disclosed process selectively forms .DELTA..sup.9,11 steroids from either 11-.alpha.- or 11-.beta.-hydroxy steroids, and can also be used for the one-step conversion of 11,21 -dihydroxy steroids to 21-chloro-.DELTA..sup.9,11 steroids. Also disclosed are processes for the regioselective conversion of 11-.beta.-chloro steroids to .DELTA..sup.9,11 steroids, and for regioselectively converting an 11,17,21-trihydroxy streoid to a 21-chloro-11,17-dihydroxy steroid.Type: GrantFiled: November 18, 1996Date of Patent: May 12, 1998Assignee: Schering CorporationInventors: Xiaoyong Fu, Tiruvettipuram K. Thiruvengadam, Chou-Hong Tann, Junning Lee, Cesar Colon
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Patent number: 5736331Abstract: Materials and methods are described for identifying signal transducing molecules which activate promoters, such as the human c-fos proto-oncogene promoter, as well as antagonists of such molecules. Also described are human c-fos promoter activating proteins, and in particular novel proteins, designated CROC-1 protein and CROC-4 protein, nucleic acids encoding said proteins, and mammalian cells transfected with vectors containing such nucleic acids.Type: GrantFiled: October 18, 1995Date of Patent: April 7, 1998Assignee: Schering CorporationInventors: Stanley Li Lin, Marnie Lynn Rothofsky
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Patent number: 5728703Abstract: A method of inhibiting Ras function and therefore inhibiting cellular growth is disclosed. The method comprises the administration of a compound of Formula. 1.0 ##STR1## Also disclosed are novel compounds of the formulas: ##STR2## Also disclosed are processes for making 3-substituted compounds of the Formulas 1.1, 1.2 and 1.3.Further disclosed are novel compounds which are intermediates in the processes for making the 3-substituted compounds of Formulas 1.1, 1.2, and 1.3.Type: GrantFiled: May 31, 1995Date of Patent: March 17, 1998Assignee: Schering CorporationInventors: W. Robert Bishop, Ronald J. Doll, Alan K. Mallams, F. George Njoroge, Joanne M. Petrin, John J. Piwinski, Ronald L. Wolin, Arthur G. Taveras, Stacy W. Remiszewski
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Patent number: 5721236Abstract: A method of inhibiting Ras function and therefore inhibiting cellular growth is disclosed. The method comprises the administration of a compound of Formula 1.0 ##STR1## Also disclosed are novel compounds of the formulas: ##STR2## Also disclosed are processes for making 3-substituted compounds of the Formulas 1.1, 1.2 and 1.3.Further disclosed are novel compounds which are intermediates in the processes for making the 3-substituted compounds of Formulas 1.1, 1.2, and 1.3.Type: GrantFiled: March 24, 1995Date of Patent: February 24, 1998Assignee: Schering CorporationInventors: W. Robert Bishop, Ronald J. Doll, Alan K. Mallams, F. George Njoroge, Joanne M. Petrin, John J. Piwinski, Ronald L. Wolin, Arthur G. Taveras, Stacy W. Remiszewski
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Patent number: 5719148Abstract: A method of inhibiting Ras function and therefore inhibiting the abnormal growth of cells is disclosed. The method comprises the administration of a compound of Formula 1.0: ##STR1## to a biological system. In particular, the method inhibits the abnormal growth of cells in a mammal such as a human being.Novel compounds of formulas 5.0, 5.1 and 5.2, wherein R is --C(R.sup.20)(R.sup.21)(R.sup.46), and 5.3, 5.3A and 5.3B, wherein R is --N(R.sup.25)(R.sup.48), are disclosed.Also disclosed are processes for making 3-substituted compounds of Formulas 5.0, 5.1, 5.2 and 5.3.Further disclosed are novel compounds which are intermediates in the process for making 3-substituted compounds of Formulas 5.0, 5.1, 5.2 and 5.3.Type: GrantFiled: March 24, 1995Date of Patent: February 17, 1998Assignee: Schering CorporationInventors: W. Robert Bishop, Ronald J. Doll, Alan K. Mallams, F. George Njoroge, Joanne M. Petrin, John J. Piwinski, Ronald L. Wolin, Arthur G. Taveras, Stacy W. Remiszewski
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Patent number: 5716612Abstract: Described is a method for potentiating the effects of chemotherapeutic agents or radiation therapy in mammals afflicted with cancer. The method comprises administering IL-4 in conjunction either with other chemotherapeutic agents or with radiation therapy.Type: GrantFiled: October 12, 1994Date of Patent: February 10, 1998Assignee: Schering CorporationInventors: Mary Ellen M. Rybak, Bertrand Coiffier
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Patent number: 5714609Abstract: A method of inhibiting Ras function and therefore inhibiting the abnormal growth of cells is disclosed. The method comprises the administration of a compound of Formula 1.0: ##STR1## to a biological system. In particular, the method inhibits the abnormal growth of cells in a mammal such as a human being. Novel compounds of formulas 5.0, 5.1 and 5.2, wherein R is --C(R.sup.20)(R.sup.21)(R.sup.46), and 5.3, 5.3A and 5.3B, wherein R is --N(R.sup.25)(R.sup.48), are disclosed. Also disclosed are processes for making 3-substituted compounds of Formulas 5.0, 5.1, 5.2 and 5.3. Further disclosed are novel compounds which are intermediates in the process for making 3-substituted compounds of Formulas 5.0, 5.1, 5.2 and 5.3.Type: GrantFiled: May 25, 1995Date of Patent: February 3, 1998Assignee: Schering CorporationInventors: Ronald J. Doll, F. George Njoroge, Stacy W. Remiszewski
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Patent number: 5703090Abstract: A method of inhibiting Ras function and therefore inhibiting cellular growth is disclosed. The method comprises the administration of a novel compound of the formula (Ia), (Ib) or (Ic) ##STR1## wherein: R and R.sup.1 are H, alkyl, halogeno, OH, alkoxy, NH.sub.2, alkylamino, dialkylamino, CF.sub.3, SO.sub.3 H, CO.sub.2 R.sup.3, NO.sub.2, SO.sub.2 NH.sub.2, or CONHR.sup.4 ;n is 0 or 1;R.sup.2 is a group of the formula R.sup.5 C(O)--, R.sup.5 CH.sub.2 C(O)--, R.sup.5 C(R.sup.6).sub.2 C(O)--, R.sup.5 SO.sub.2 --, R.sup.5 CH.sub.2 SO.sub.2 --, R.sup.5 SCH.sub.2 C(O)--, R.sup.5 OC(O)--, R.sup.5 NHC(O)--, R.sup.5 C(O)C(O)-- or R.sup.5 SC(O)--;R.sup.5 is alkyl, aryl, arylalkyl, arylalkenyl, heteroaryl, heteroarylalkyl, heteroarylalkenyl or heterocycloalkyl; andR.sup.6 is alkyl or C(R.sup.6).sub.2 is a carbocyclic ring;or pharmaceutically aceptable salts thereof.Type: GrantFiled: September 11, 1996Date of Patent: December 30, 1997Assignee: Schering CorporationInventors: Adriano Afonso, Joseph M. Kelly, Ronald L. Wolin
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Patent number: 5700806Abstract: Novel compounds of Formula (7.0a), (7.0b) or (7.0c): ##STR1## are disclosed. Also disclosed is a method of inhibiting Ras function and therefore inhibiting the abnormal growth of cells. The method comprises administering a compound of the formula (7.0a), (7.0b) or (7.0c) to a biological system. In particular, the method inhibits the abnormal growth of cells in a mammal such as a human being.Type: GrantFiled: March 24, 1995Date of Patent: December 23, 1997Assignee: Schering CorporationInventors: Ronald J. Doll, F. George Njoroge
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Patent number: 5696121Abstract: A method of inhibiting Ras function and therefore inhibiting the abnormal growth of cells is disclosed. The method comprises the administration of a compound of Formula 1.0: ##STR1## to a biological system. In particular, the method inhibits the abnormal growth of cells in a mammal such as a human being.Novel compounds of formulas 5.0, 5.1 and 5.2, wherein R is --C(R.sup.20)(R.sup.21)(R.sup.46), and 5.3, 5.3A and 5.3B, wherein R is --N(R.sub.25)(R.sub.48), are disclosed.Also disclosed are processes for making 3-substituted compounds of Formulas 5.0, 5.1, 5.2 and 5.3.Further disclosed are novel compounds which are intermediates in the process for making 3-substituted compounds of Formulas 5.0, 5.1, 5.2 and 5.3.Type: GrantFiled: May 25, 1995Date of Patent: December 9, 1997Assignee: Schering CorporationInventors: W. Robert Bishop, Ronald J. Doll, Alan K. Mallams, F. George Njoroge, Joanne M. Petrin, John J. Piwinski, Ronald L. Wolin, Arthur G. Taveras, Stacy W. Remiszewski
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Patent number: 5686646Abstract: Disclosed are chiral hydrazine derivatives of the formula (Ia), (Ib), (Ic) and (Id) ##STR1## wherein: R.sup.1 and R.sup.2 are independently C.sub.1 -C.sub.10 alkyl;R.sup.3 is H or R.sup.4 wherein R.sup.4 is a hydroxy protecting group; andZ is H, --CHO, --C(O)OC(CH.sub.3).sub.3 or --C(O)OCH.sub.2 C.sub.6 H.sub.5.Also described is a process for preparing chiral hydrazines of the formula (Ia), (Ib), (Ic) and (Id).Type: GrantFiled: May 23, 1995Date of Patent: November 11, 1997Assignee: Schering-Plough CorporationInventors: David R. Andrews, Anantha Sudhakar
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Patent number: 5684013Abstract: A method of inhibiting Ras function and therefore inhibiting cellular growth is disclosed. The method comprises the administration of a novel compound of the formula (Ia), (Ib) or (Ic) ##STR1## wherein: R and R.sup.1 are H, alkyl, halogeno, OH, alkoxy, NH.sub.2, alkylamino, dialkylamino, CF.sub.3, SO.sub.3 H, CO.sub.2 R.sub.3, NO.sub.2, SO.sub.2 NH.sub.2, or CONHR.sub.4 ;n is 0 or 1;R.sup.2 is a group of the formula R.sup.5 C(O)--, R.sup.5 CH.sub.2 C(O)--, R.sup.5 C(R.sup.6).sub.2 C(O)--, R.sup.5 SO.sub.2 --, R.sup.5 CH.sub.2 SO.sub.2 --, R.sup.5 SCH.sub.2 C(O)--, R.sup.5 OC(O)--, R.sup.5 NHC(O)--, R.sup.5 C(O)C(O)-- or R.sup.5 SC(O)--;R.sup.5 is alkyl, aryl, arylalkyl, arylalkenyl, heteroaryl, heteroarylalkyl, heteroarylalkenyl or heterocycloalkyl; andR.sup.6 is alkyl or C(R.sup.6).sub.2 is a carbocyclic ring;or pharmaceutically acceptable salts thereof.Type: GrantFiled: March 24, 1995Date of Patent: November 4, 1997Assignee: Schering CorporationInventors: Adriano Afonso, Joseph M. Kelly, Ronald L. Wolin
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Patent number: 5660711Abstract: A process is described for preparing 3-exomethylene cephalosporanic acid derivatives for use in the synthesis of cephalosporin antibiotics such as ceftibuten. The process comprises electrochemical reduction of a compound of the formula (IV) ##STR1## wherein: R.sup.3 is CH.sub.3 C(O)--; ##STR2## is an optional sulfoxide group; n is 2 or 3; R.sup.1 is H and R is H or NHR.sup.2, where R.sup.2 is H or a protecting group selected from C.sub.6 H.sub.5 CH.sub.2 OC(O)--, C.sub.6 H.sub.5 C(O)-- or C.sub.1 -C.sub.6 alkoxy-C(O)--; or wherein R and R.sup.1 together with the carbon atom to which they are attached comprise --C(O)--, and produces the desired 3-exomethylene compounds with low levels of the corresponding 3-methyl tautomers.Type: GrantFiled: December 8, 1995Date of Patent: August 26, 1997Assignee: Schering CorporationInventors: Derek Walker, Junning Lee, Charles R. Martin, Haiyan Zhang, Loris Sogli, Ermanno Bernasconi, Vinod Parakkal Menon
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Patent number: 5607931Abstract: Amides of the formula ##STR1## wherein: R.sup.1 is A and R.sup.2 is B; R.sup.1 is B and R.sup.2 is A; or R.sup.1 and R.sup.2 are independently selected from the group B;A is phenyl, substituted phenyl, heteroaryl, or substituted heteroaryl;B is cycloalkyl, substituted cycloalkyl, heterocycloalkyl, or substituted heterocycloalkyl;R.sup.3 is an alkyl chain of 1 to 25 carbon atoms, branched or straight; an alkenyl chain of 2 to 25 carbon atoms, branched or straight; a substituted alkyl chain; a substituted alkenyl chain; an interrupted alkyl chain; an interrupted alkenyl chain; a substituted interrupted alkyl chain; or a substituted interrupted alkenyl chain;R.sup.4 is hydrogen, lower alkyl, phenyl, Q-substituted phenyl, heteroaryl or Q-substituted heteroaryl;R.sup.6 and R.sup.7 are both H, or R.sup.6 and R.sup.7 together represent .dbd.Type: GrantFiled: March 20, 1995Date of Patent: March 4, 1997Assignee: Schering CorporationInventor: Sundeep Dugar
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Patent number: 5599906Abstract: Hybrid regulatory proteins are provided which contain amino acid sequences that are susceptible to cleavage by specific proteolytic enzymes. When acted upon by such enzymes, the hybrid regulatory proteins are rendered substantially less active, thereby altering the rate of production of products of indicator genes that are controlled by the regulatory proteins. Also provided are DNAs encoding such regulatory proteins, recombinant vectors and transformed eukaryotic cells containing such DNAs, and methods for identifying inhibitors of the specific proteolytic enzymes.Type: GrantFiled: November 3, 1994Date of Patent: February 4, 1997Assignee: Schering CorporationInventor: Bimalendu Dasmahapatra
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Patent number: 5571910Abstract: A process is described for preparing 3-exomethylene cephalosporanic acid derivatives for use in the synthesis of cephalosporin antibiotics such as ceftibuten. The process comprises electrochemical reduction of a compound of the formula (IV) ##STR1## wherein: R.sup.3 is CH.sub.3 C(O)--; ##STR2## is an optional sulfoxide group; n is 2 or 3; R.sup.1 is H and R is H or NHR.sup.2, where R.sup.2 is H or a protecting group selected from C.sub.6 H.sub.5 CH.sub.2 OC(O)--, C.sub.6 H.sub.5 C(O)-- or C.sub.1 -C.sub.6 alkoxy--C(O)--; or wherein R and R.sup.1 together with the carbon atom to which they are attached comprise --C(O)--, and produces the desired 3-exomethylene compounds with low levels of the corresponding 3-methyl tautomers.Type: GrantFiled: May 26, 1995Date of Patent: November 5, 1996Assignee: Schering CorporationInventors: Derek Walker, Junning Lee, Charles R. Martin, Haiyan Zhang, Loris Sogli, Ermanno Bernasconi