Patents by Inventor Craig E. Caufield

Craig E. Caufield 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: 5776967
    Abstract: This invention provides compounds of formula I having the structure ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are, each, independently, hydrogen, alkyl, alkenyl, alkynyl, alkoxy, aralkoxy, trifluroalkoxy, alkanoyloxy, hydroxy, halo, trifluoromethyl, cyano, amino, mono- or di-alkylamino, alkanamido, or alkanesulfonamido;R.sub.5 is hydrogen, alkyl, alkenyl, alkoxyalkyl or alkylcycloalkyl;R.sub.6 is hydrogen, alkyl or alkenyl;X is oxygen or carbon;A is oxygen or NZ;Z is hydroxyl, alkoxy, aryloxy, carboxyalkyloxy of 2-7 carbon atoms, arylamino, or alkylsulfonyamino of 1-6 carbon atoms;or a pharmaceutically acceptable salt thereof, which are useful in the treatment of arthritic disorders, colorectal cancer, and Alzheimer's disease.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: July 7, 1998
    Assignee: American Home Products Corporation
    Inventors: Anthony F. Kreft, Craig E. Caufield, Amedeo A. Failli, Thomas J. Caggiano, Alexander A. Greenfield, Dennis M. Kubrak
  • Patent number: 5679801
    Abstract: There are disclosed compounds of the formula: ##STR1## wherein X is --CH.sub.2 R;Y is --O-- or --S--;R.sup.1 and R.sup.2 are each, independently, hydrogen or lower alkyl;or a pharmaceutically acceptable salt thereof;which by virtue of their ability to inhibit PLA.sub.2, are of use as antiinflammatory agents and there is also disclosed a method for the treatment of immunoinflammatory conditions, such as allergy, anaphylaxis, asthma and inflammation in mammals.
    Type: Grant
    Filed: May 15, 1995
    Date of Patent: October 21, 1997
    Assignee: American Home Products Corporation
    Inventors: Craig E. Caufield, James M. Rinker
  • Patent number: 5525610
    Abstract: This invention comprises the compound of 42-Epimer Rapamycin of the following structural formula: ##STR1## as well as pharmaceutical compositions containing 42-Epi-Rapamycin and its use in methods for inducing immunosuppression and methods for treating transplantation rejection, graft vs. host disease, autoimmune diseases, diseases of inflammation, solid tumors, fungal infections, adult T-cell leukemia/lymphomas and hyperproliferative vascular disorders.
    Type: Grant
    Filed: April 26, 1995
    Date of Patent: June 11, 1996
    Assignee: American Home Products Corporation
    Inventors: Craig E. Caufield, Alexander A. Grinfeld
  • Patent number: 5468774
    Abstract: There are disclosed compounds of the formula: ##STR1## wherein X is O;R.sup.1 and R.sup.2 are each, independently, hydrogen, C.sub.1 -C.sub.10 alkyl, C.sub.3 -C.sub.20 cycloalkyl, phenylloweralkyl, or substituted phenylloweralkyl substituted by halo, lower alkyl, lower alkoxy, halo lower alkyl, amino, monoloweralkylamino, diloweralkylamino or sulfonamido;A is O, S, NR, or a chemical bond;R, if present, is hydrogen or loweralkyl;m is 0-15;n is 3-12;p is 0-15,where m+p=2-15;and the pharmacologically acceptable salts thereof. Also disclosed is a method for treating immunoimmflammatory conditions in mammals which comprises administering to a mammal so afflicted an effective amount of a compound having the formula above wherein X, R.sup.1, R.sup.2, A, R, if present, m and p are as listed above and n=3-12 and m+p=2-15.
    Type: Grant
    Filed: March 14, 1995
    Date of Patent: November 21, 1995
    Assignee: American Home Products Corporation
    Inventors: Guy A. Schiehser, Craig E. Caufield, Nancie A. Senko, Gregory F. VonBurg
  • Patent number: 5446048
    Abstract: A compound of the structure ##STR1## wherein R.sup.1 is ##STR2## R.sup.2 is hydrogen, alkyl, alkenyl, alkynyl, trifluoromethyl, arylalkyl, or Ar;R.sup.3 is hydrogen, alkyl, alkenyl, alkynyl, trifluoromethyl, arylalkyl, or --CO.sub.2 R.sup.8 ;R.sup.4 is alkyl, alkenyl, alkynyl, trifluoromethyl, arylalkyl, Ar, aminoalkyl, thioalkyl, alkylthioalkyl, hydroxyalkyl, or --CO.sub.2 R.sup.8 ;R.sup.5 is hydrogen, alkyl, alkenyl, alkynyl, trifluoromethyl, arylalkyl, Ar, or --CO.sub.2 R.sup.8 ;R.sup.6 is hydrogen, alkyl, alkenyl, alkynyl, trifluoromethyl, arylalkyl, or Ar;R.sup.7 is alkyl, alkenyl, alkynyl, trifluoromethyl, arylalkyl, or Ar;R.sup.8 is hydrogen, alkyl, alkenyl, alkynyl, trifluoromethyl, arylalkyl, fluorenylmethyl, or Ar;Y is O or S;X is .dbd.N--O--(CH.sub.2).sub.f --Z or .dbd.N--O--Ar;Z is hydrogen, alkenyl, alkynyl, alkoxy, cyano, fluoro, trifluoromethyl, --NR.sup.5 R.sup.
    Type: Grant
    Filed: September 21, 1994
    Date of Patent: August 29, 1995
    Assignee: American Home Products Corporation
    Inventors: Amedeo A. Failli, Robert J. Steffan, Craig E. Caufield, David C. Hu, Alexander A. Grinfeld
  • Patent number: 5420153
    Abstract: There are disclosed compounds of the formula: ##STR1## wherein X is NR;R is hydrogen or lower alkyl;R.sup.1 and R.sup.2 are each, independently, hydrogen, C.sub.1 -C.sub.10 alkyl, C.sub.3 -C.sub.20 cycloalkyl, phenylloweralkyl, or substituted phenylloweralkyl substituted by halo, lower alkyl, lower alkoxy, halo lower alkyl, amino, monoloweralkylamino, diloweralkylamino or sulfonamido;A is O, S, NR, or a chemical bond;m is 0-15;n is 0-20;p is 0-15,where m+p.ltoreq.15;and the pharmacologically acceptable salts thereof, which by virtue of their ability to inhibit PLA.sub.2, are of use as antiinflammatory agents and there is also disclosed a method for the treatment of immunoinflammatory conditions, such as allergy, anaphylaxis, asthma and inflammation in mammals, as well as in the modulation of PAF-mediated biological processes, such as embryonic implantation, thus making the compounds useful as antifertility agents.
    Type: Grant
    Filed: September 8, 1994
    Date of Patent: May 30, 1995
    Assignee: American Home Products Corporation
    Inventors: Guy A. Schiehser, Craig E. Caufield, Nancie A. Senko, Gregory F. VonBurg
  • Patent number: 5378836
    Abstract: A compound of the structure ##STR1## wherein R.sup.1 and R.sup.2 are each, independently, hydrogen, --CONH.sub.a --{{(CR.sup.3 R.sup.4).sub.m (--A--(CR.sup.5 R.sup.6).sub.n).sub.p }.sub.q --B}.sub.r ; --SO.sub.2 R.sup.7 ; --SO.sub.3 H; --CHR.sup.8 O(CH.sub.2).sub.t R.sup.9 ; or ##STR2## R.sup.3, R.sup.4, R.sup.5, R.sup.6, and B are each, independently, hydrogen, alkyl, alkenyl, alkynyl, hydroxyalkyl, alkoxyalkyl, alkylthioalkyl, alkylaminoalkyl, dialkylaminoalkyl, arylalkyl, cycloalkyl, --OR.sup.10, --SR.sup.10, halogen, --CN, --NO.sub.2, --CF.sub.3, --COR.sup.10, --CO.sub.2 R.sup.10, --CONHR.sup.10, --SO.sub.2 R.sup.10, --OSO.sub.3 R.sup.10, --NR.sup.10 R.sup.11, --NHCOR.sup.10, --NHSO.sub.2 R.sup.10, or Ar;X is .dbd.NOR.sup.12 or .dbd.NNR.sup.12 R.sup.13 ;Y is O, .dbd.NOR.sup.12, or .dbd.NNR.sup.12 R.sup.13 ;R.sup.7, R.sup.12, and R.sup.13 are each, independently, hydrogen, alkyl, alkenyl, alkynyl, arylalkyl;R.sup.8, R.sup.9, R.sup.10, and R.sup.
    Type: Grant
    Filed: October 8, 1993
    Date of Patent: January 3, 1995
    Assignee: American Home Products Corporation
    Inventors: Wenling Kao, Robert L. Vogel, Magid A. Abou-Gharbia, Craig E. Caufield
  • Patent number: 5378696
    Abstract: A compound of the structure ##STR1## wherein R.sup.1, R.sup.2, and R.sup.3 are each, independently, hydrogen or ##STR2## with the proviso that R.sup.1, R.sup.2, and R.sup.3 are not all hydrogen; R.sup.4 is --(CH.sub.2).sub.m X(CH.sub.2).sub.n CO.sub.2 R.sup.5 or ##STR3## R.sup.5 and R.sup.6 are each, independently, hydrogen, alkyl, alkenyl, alkynyl, (CH.sub.2).sub.p NR.sup.9 R.sup.10, mono-, di-, or tri-hydroxyalkyl, aralkyl, or aryl; ##STR4## R.sup.7, R.sup.8, R.sup.9, and R.sup.10 are each, independently, hydrogen or alkyl;Y is CH or N:m is 0-4; n is 0-4; p is 0-4;with the proviso that m and n are not both 0 when X is O or S;or a pharmaceutically acceptable salt thereof, which is by virtue of its immunosuppressive activity is useful in treating transplantation rejection, host vs. graft disease, autoimmune diseases, and diseases of inflammation, by virtue of its antitumor activity useful in treating tumors, and by virtue of its antifungal activity is useful in treating fungal infections.
    Type: Grant
    Filed: June 8, 1993
    Date of Patent: January 3, 1995
    Assignee: American Home Products Corporation
    Inventor: Craig E. Caufield
  • Patent number: 5373014
    Abstract: A compound of the structure ##STR1## wherein R.sup.1 is ##STR2## R.sup.2 is hydrogen, alkyl, alkenyl, alkynyl, trifluoromethyl, arylalkyl, or Ar;R.sup.3 is hydrogen, alkyl, alkenyl, alkynyl, trifluoromethyl, arylalkyl, or --CO.sub.2 R.sup.8 ;R.sup.4 is alkyl, alkenyl, alkynyl, trifluoromethyl, arylalkyl, Ar, aminoalkyl, thioalkyl, alkylthioalkyl, hydroxyalkyl, or --CO.sub.2 R.sup.8 ;R.sup.5 is hydrogen, alkyl, alkenyl, alkynyl, trifluoromethyl, arylalkyl, At, or --CO.sub.2 R.sup.8 ;R.sup.6 is hydrogen, alkyl, alkenyl, alkynyl, trifluoromethyl, arylalkyl, or Ar;R.sup.7 is alkyl, alkenyl, alkynyl, trifluoromethyl, arylalkyl, or Ar;R.sup.8 is hydrogen, alkyl, alkenyl, alkynyl, trifluoromethyl, arylalkyl, fluorenylmethyl, orAr;Y is O or S;X is .dbd.N--O--(CH.sub.2).sub.f --Z or .dbd.N--O--Ar;Z is hydrogen, alkenyl, alkynyl, alkoxy, cyano, fluoro, trifluoromethyl, --NR.sup.5 R.sup.
    Type: Grant
    Filed: October 8, 1993
    Date of Patent: December 13, 1994
    Assignee: American Home Products Corporation
    Inventors: Amedeo A. Failli, Robert J. Steffan, Craig E. Caufield, David C. Hu, Alexander A. Grinfeld
  • Patent number: 5366993
    Abstract: There are disclosed compounds of the formula: ##STR1## wherein X is O, S or NR;R is hydrogen or lower alkyl;R.sup.1 and R.sup.2 are each, independently, hydrogen, C.sub.1 -C.sub.10 alkyl, C.sub.3 -C.sub.20 cycloalkyl, phenylloweralkyl, or substituted phenylloweralkyl substituted by halo, lower alkyl, lower alkoxy, halo lower alkyl, amino, monoloweralkylamino, diloweralkylamino or sulfonamido;A is O, S, NR, or a chemical bond;m is 0-15;n is 0-20;p is 0-15,where m+p.ltoreq.15;and the pharmacologically acceptable salts thereof, which by virtue of their ability to inhibit PLA.sub.2, are of use as antiinflammatory agents and there is also disclosed a method for the treatment of immunoinflammatory conditions, such as allergy, anaphylaxis, asthma and inflammation in mammals, as well as in the modulation of PAF-mediated biological processes, such as embryonic implantation, thus making the compounds useful as antifertility agents.
    Type: Grant
    Filed: June 3, 1993
    Date of Patent: November 22, 1994
    Assignee: American Home Products Corporation
    Inventors: Guy A. Schiehser, Craig E. Caufield, Nancie A. Senko, Gregory F. VonBurg
  • Patent number: 5358944
    Abstract: A compound of the structure ##STR1## wherein R.sup.1, R.sup.2, and R.sup.3 are each, independently, hydrogen or ##STR2## with the proviso that R.sup.1, R.sup.2, and R.sup.3 are not all hydrogen; R.sup.4 is --(CH.sub.2).sub.m X(CH.sub.2).sub.n CO.sub.2 R.sup.5 or ##STR3## R.sup.5 and R.sup.6 are each, independently, alkyl, aralkyl, or phenyl which is optionally mono-, di-, or tri-substituted with a substituent selected from alkyl, alkoxy, hydroxy, cyano, halo, nitro, carbalkoxy, trifluoromethyl, amino, or a carboxylic acid;X is ##STR4## O, or S; R.sup.7 and R.sup.8 are each, independently, hydrogen or alkyl;Y is CH or N;m is 0-4; n is 0-4;with the proviso that m and n are not both 0 when X is O or S;or a pharmaceutically acceptable salt thereof, which is by virtue of its immunosuppressive activity is useful in treating transplantation rejection, host vs.
    Type: Grant
    Filed: April 7, 1993
    Date of Patent: October 25, 1994
    Assignee: American Home Products Corporation
    Inventor: Craig E. Caufield
  • Patent number: 5286731
    Abstract: This invention provides a method of treating immunoinflammatory bowel disease in a mammal in need thereof which comprises administering an antiimmunoinflammatory amount of rapamycin, alone or in combination with cyclosporin A. As such, rapamycin, alone or in combination with cyclosporin A, is useful in treating bowel diseases such as ulcerative colitis, Crohn's disease, ulcerative proctitis, and the like.
    Type: Grant
    Filed: August 17, 1992
    Date of Patent: February 15, 1994
    Assignee: American Home Products Corporation
    Inventors: Craig E. Caufield, John H. Musser, Surendra N. Sehgal
  • Patent number: 5286730
    Abstract: This invention provides a method of treating immunionflammatory skin disease in a mammal in need thereof which comprises administering an antiimmunoinflammatory amount of rapamycin, alone or in combination with cyclosporin A, orally, parenterally, intranasally, intrabronchially, topically, transdermally, or rectally. As such, rapamycin, alone or in combination with cyclosporin A, is useful in treating skin diseases such as psoriasis, atopic dermatitis, contact dermatitis, eczematous dermatitis, seborrheic dermatitis, Lichen planus, Pemphigus, bulus pemphigoid, Epidermolysis bullosa, urticaria, angioedemas, vasculitides, erythemas, cutaneous eosinphilias, and the like.
    Type: Grant
    Filed: August 17, 1992
    Date of Patent: February 15, 1994
    Assignee: American Home Products Corporation
    Inventors: Craig E. Caufield, John H. Musser, Surendra N. Sehgal
  • Patent number: 5242945
    Abstract: There are disclosed compounds of the formula: ##STR1## wherein X is --CH.sub.2 R;R is ##STR2## and further when Y=S, R may also be --(CH.sub.2).sub.e CH.sub.3 ; Y is --O--or --S--;R.sup.1 and R.sup.2 are each, independently, hydrogen or lower alkyl;R.sup.3 is indolyl, furyl, phenyl or phenyl optionally mono- or disubstituted independently by alkyl of 1-7 carbon atoms, --C(CH.sub.3).sub.3, --C(CH.sub.3).sub.2 CH.sub.2 C(CH.sub.3).sub.3, --C(CH.sub.3).sub.2 CH.sub.2 CH.sub.3, haloloweralkyl, perfluoroalkyl, lower alkoxy, aryl alkoxy, halo or nitro;R.sup.4 and R.sup.5 are, independently, --COCH.sub.2 R.sup.7, --CO.sub.2 R.sup.7, --CONHR.sup.7, geranyl or CH.sub.2 R.sup.3 ;R.sup.6 is hydrogen or lower alkyl;R.sup.7 is geranyl and any moiety selected from R other than ##STR3## A and B are, independently, --O--, --S-- or --NR.sup.6 --; and a is 0-8;b is 1-10 when Y=S, and 2-10 when Y=O;c is 1-3;d is 0-9; ande is 3-18;which by virtue of their ability to inhibit PLA.sub.
    Type: Grant
    Filed: April 12, 1991
    Date of Patent: September 7, 1993
    Assignee: American Home Products Corporation
    Inventors: Craig E. Caufield, James M. Rinker
  • Patent number: 5221670
    Abstract: A compound of the structure ##STR1## where R.sup.1, R.sup.2, and R.sup.3 are each, independently, hydrogen or ##STR2## with the proviso that R.sup.1, R.sup.2, and R.sup.3 are not all hydrogen; R.sup.4 is --(CH.sub.2).sub.m X(CH.sub.2).sub.n CO.sub.2 R.sup.5 or ##STR3## R.sup.5 and R.sup.6 are each, independently, alkyl, aralkyl, or phenyl which is optionally mono-, di-, or tri-substituted with a substituent selected from alkyl, alkoxy, hydroxy, cyano, halo, nitro, carbalkoxy, trifluoromethyl, amino, or a carboxylic acid;X is ##STR4## R.sup.7 and R.sup.8 are each, independently, hydrogen or alkyl; Y is CH or N;m is 0-4; n is 0-4;with the proviso that m and n are not both 0 when X is O or S;or a pharmaceutically acceptable salt thereof, which is by virtue of its immunosuppresive activity is useful in treating transplantation rejection, host vs.
    Type: Grant
    Filed: October 17, 1991
    Date of Patent: June 22, 1993
    Assignee: American Home Products Corporation
    Inventor: Craig E. Caufield
  • Patent number: 5151413
    Abstract: Derivatives of Rapamycin where the hydroxy group at position 31 and/or 42 are reacted with acetal forming reagents have been shown to have immunosuppressant and antifungal properties. These derivatives are represented by the formula: ##STR1## wherein R.sup.1 and R.sup.2 independently are hydrogen, --CH.sub.2 YX, --C(CH.sub.3).sub.2 YX, --CH.sub.2 (CH.sub.3)YX, or L;Y is O or S; X is --CH.sub.3, --(CH.sub.2).sub.n CH.sub.3, --CH.sub.2 C.sub.6 H.sub.6, --(CH.sub.2).sub.2 OCH.sub.3, --CH.sub.2 Cl.sub.3 or --CH.sub.2 CH.sub.2 Si(CH.sub.3).sub.3 and L is selected from tetrahydrofuran-2-yl, tetrahydrothiophen-2-yl, tetrahydrothiopyran-2-yl, tetrahydropyran-2-yl, 4-methoxytetrahydropyran-2-yl, 4-methoxytetrahydrothiopyran-2-yl, or 4-methoxytetrahydrothiopyran-S, S-dioxide-2-yl with a proviso that R.sup.1 and R.sup.2 cannot simultaneously be hydrogen and n is 1-5.
    Type: Grant
    Filed: November 6, 1991
    Date of Patent: September 29, 1992
    Assignee: American Home Products Corporation
    Inventors: Craig E. Caufield, Guy A. Schiehser
  • Patent number: 5130307
    Abstract: A compound of the structure ##STR1## wherein R.sup.1 and R.sup.2 are each, independently, hydrogen or ##STR2## with the proviso that R.sup.1 and R.sup.2 are not both hydrogen; R.sup.3 is hydrogen, alkyl, aralkyl, --(CH.sub.2).sub.q CO.sub.2 R.sup.6,--(CH.sub.2).sub.r NR.sup.7 CO.sub.2 R.sup.8, carbamylalkyl, aminoalkyl, hydroxyalkyl, guanylalkyl, mercaptoalkyl, alkylthioalkyl, indolylmethyl, hydroxyphenyklmethyl, imidazoylmethyl or phenyl which is optionally mono-, di-, or tri-substituted with a sustituent selected from alkyl, alkoxy, hydroxy, cyano, halo, nitro, carbalkoxy, trifluoromethyl, amino, or a carboxylic acid;R.sup.4 and R.sup.7 are each, independently, hydrogen, alkyl, or aralkyl;R.sup.5, R.sup.6, and R.sup.
    Type: Grant
    Filed: February 19, 1991
    Date of Patent: July 14, 1992
    Assignee: American Home Products Corporation
    Inventors: Amedeo A. Failli, Craig E. Caufield, Robert J. Steffan
  • Patent number: 5118677
    Abstract: A compound of the structure ##STR1## wherein R.sup.1 and R.sup.2 are each independently, hydrogen or ##STR2## X is --(CH.sub.2).sub.m -- or --Ar--; R.sup.3 and R.sup.4 are each, independently, hydrogen, alkyl, --(CH.sub.2).sub.n --Ar, --(CH.sub.2).sub.p --NR.sup.5 R.sup.6, or --(CH.sub.2).sub.p --N.sup.+ R.sup.5 R.sup.6 R.sup.7 Y.sup.- ; R.sup.5 and R.sup.6 are each, independently, hydrogen, alkyl, or --(CH.sub.2).sub.n --Ar; Ar is an optionally substituted group selected from ##STR3## in which the optional substituents are selected from the group consisting of alkyl, aralkyl, alkoxy, cyano, halo, nitro, carbalkoxy, or perfluoroalkyl; R.sup.7 is alkyl; Y is a halide, sulfate, phosphate, or p-toluenesulfonate anion; m=1-6; n=1-6; p=1-6; with the proviso that R.sup.1 and R.sup.2 are not both hydrogen; or a pharmaceutically acceptable salt thereof, which by virtue of its immunosuppressive activity is useful in treating transplantation rejection, host vs.
    Type: Grant
    Filed: May 20, 1991
    Date of Patent: June 2, 1992
    Assignee: American Home Products Corporation
    Inventor: Craig E. Caufield
  • Patent number: 5102876
    Abstract: Reduction of rapamycin with DIBAL furnishes either the 15-hydroxyrapamycin or 15,27-bis(hydroxy)rapamycin, depending upon the reaction conditions, having the general structure ##STR1## where Y is --CO-- --CH(OH)--. The compounds of this invention are useful in treating transplant rejection, host vs. graft disease, autoimmune diseases, diseases of inflammation, and fungal infections.
    Type: Grant
    Filed: May 7, 1991
    Date of Patent: April 7, 1992
    Assignee: American Home Products Corporation
    Inventor: Craig E. Caufield
  • Patent number: 5066671
    Abstract: There are disclosed a method for the treatment or prevention of immunoinflammatory conditions by administering to a mammal an effective amount of a compound having the formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are each, independently, hydrogen, alkyl, aralkyl, aryl, or ##STR2## X is alkyl, aryl, or -NR.sup.5 R.sup.6 ; R.sup.5 and R.sup.6 are each independently hydrogen, alkyl, or aryl; aryl is ##STR3## where the dotted line represents an optional double bond; R.sup.7, and R.sup.8 and R.sup.9 are each, independently, hydrogen, alkyl, hydroxy, alkoxy, carbalkoxy, halo, nitro, amino, cyano, trifluoromethyl, or a carboxylic acid;n=1-3;or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: July 16, 1990
    Date of Patent: November 19, 1991
    Assignee: American Home Products Corporation
    Inventor: Craig E. Caufield