Patents Assigned to Ontogen
  • Patent number: 5840721
    Abstract: The present invention relates to polysubsituted imidazole having formula 1 ##STR1## These compounds are useful for restoring the sensitivity of multidrug resistant cells to cancer chemotherapeutic agents.
    Type: Grant
    Filed: October 16, 1997
    Date of Patent: November 24, 1998
    Assignee: Ontogen Corporation
    Inventors: Adnan M. M. Mjalli, Chengzhi Zhang
  • Patent number: 5770455
    Abstract: The present invention provides labeled synthetic libraries of random oligomers and methods and apparatus for generating labeled synthetic oligomer libraries. Each member of such a library is labeled with a unique identifier tag that specifies the structure or sequence of the oligomer. In a preferred embodiment of the present invention the identifier tag is a microchip that is pre-encoded or encodable with information that is related back to a detector when the identifier tag is pulsed with electromagnetic radiation.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 23, 1998
    Assignee: Ontogen Corporation
    Inventors: John Cargill, Robert W. Armstrong
  • Patent number: 5770620
    Abstract: The present invention provides novel protein tyrosine phosphatase modulating compounds having an aryl acrylic acid structure, compositions comprising the compounds, and methods of making and using the same.
    Type: Grant
    Filed: October 16, 1995
    Date of Patent: June 23, 1998
    Assignee: Ontogen Corporation
    Inventors: Adnan M. M. Mjalli, Xiaodong Cao, Edmund J. Moran
  • Patent number: 5770157
    Abstract: Methods and apparatus for the generation of chemical libraries are described. The preferred embodiments include a reaction block which uses replaceable reaction chambers supported in the block. Each reaction block is fitted with four sets of 12 reaction chambers, and has fittings that facilitate robotic manipulation. The reaction chambers are preferably fitted with a frit. An s-shaped trap tube snaps into a fitting on the bottom of each reaction chamber. The trap tube runs into a drain tube. The reaction block is fitted with gas (preferably N.sub.2) lines and a septum seal such that gas pressurization empties the reaction chambers into the drain tubes. The drain tubes are arranged so as to mate directly with a standard 96 well microtiter plate for the collection of material. A docking station provides for secure registration of the reaction blocks, and provides for introduction of gases and liquids into the reaction blocks.
    Type: Grant
    Filed: September 18, 1996
    Date of Patent: June 23, 1998
    Assignee: Ontogen Corporation
    Inventors: John Cargill, Romaine R. Maiefski
  • Patent number: 5756527
    Abstract: The present invention relates to imidazole derivatives having formula 1 ##STR1## wherein: R.sub.1 is selected from the group consisting of: mono-,di-,and tri-substituted phenyl or thienyl, the substituents are selected from the group consisting of:(i) substituted C.sub.1-6 alkyl, substituted C.sub.2-6 alkyloxy, wherein the substituents are selected from the group consisting of hydrogen or C.sub.1-6 alkoxy;(ii) C.sub.1-11 CO.sub.2 R.sub.5, trans-CH.dbd.CHCO.sub.2 R.sub.5, wherein R.sub.5 is C.sub.1-11 alkyl, or phenyl C.sub.1-11 alkyl;R.sub.2 and R.sub.3 are mono-, di, and tri-substituted phenyl wherein the substituents are independently selected from:(i) halo;(ii) C.sub.1-6 alkyl-amino, or di(C.sub.1-6 alkyl)amino, and R.sub.4 is hydrogen.These compounds are useful for restoring the sensitivity of multidrug resistant cells to cancer chemotherapeutic agents.
    Type: Grant
    Filed: April 25, 1997
    Date of Patent: May 26, 1998
    Assignee: Ontogen Corporation
    Inventors: Adnan M. M. Mjalli, Sepehr Sarshar
  • Patent number: 5753687
    Abstract: Y--X--C(R').dbd.C(R")COOR'" (A1)The present invention relates to novel protein tyrosine phosphatase modulating compounds having the general structure shown in Formula (A1), to methods for their preparation, to compositions comprising the compounds, to their use for treatment of human and animal disorders, to their use for purification of proteins or glycoproteins, and to their use in diagnosis. The invention relates to modulation of the activity of molecules with phosphotyrosine recognition units, including protein tyrosine phosphatases (PTPases) and proteins with Src-homology-2 domains, in in vitro systems, microorganisms, eukaryoic cells, whole animals and human beings. R' and R" are independently selected from the group consisting of hydrogen, halo, cyano, nitro, trihalomethyl, alkyl, arylalkyl. R'" is selected from the group consisting of hydrogen, alkyl, substituted alkyl, aryl, arylalkyl. X is aryl. Y is selected from hydrogen or ##STR1## wherein (*) indicates a potential point of attachment to X.
    Type: Grant
    Filed: December 16, 1996
    Date of Patent: May 19, 1998
    Assignee: Ontogen Corporation
    Inventors: Adnan Mjalli, Sepehr Sarshar, Xiaodong Cao, Farid Bakir
  • Patent number: 5723451
    Abstract: There are disclosed methods useful for the inhibition of inducible nitric oxide synthase by the adminstration of a compound of the Formula I: ##STR1## to a patient in need of such inhibition such as hypotension, inflammation, autoimmune diseases and septic shock and the like.
    Type: Grant
    Filed: August 9, 1996
    Date of Patent: March 3, 1998
    Assignee: Ontogen Corporation
    Inventors: Adnan M. M. Mjalli, Sepehar Sarshar, Chengzhi Zhang
  • Patent number: 5700826
    Abstract: This invention relates to compounds of Formula 1 which are pharmacologically useful for the treatment of cancer through sensitization of multi-drug resistant cancer cells to chemotherapeutic agents. ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are, respectively hydrogen, alkyl, alkenyl, substituted alkyl, substituted alkenyl, aryl, substituted aryl.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: December 23, 1997
    Assignee: Ontogen Corporation
    Inventors: Adnan Mjalli, Sepehr Sarshar
  • Patent number: 5609826
    Abstract: Methods and apparatus for the generation of chemical libraries are described. The preferred embodiments include a reaction block which uses replaceable reaction chambers supported in the block. Each reaction block is fitted with four sets of 12 reaction chambers, and has fittings that facilitate robotic manipulation. The reaction chambers are preferably fitted with a frit. An s-shaped trap tube snaps into a fitting on the bottom of each reaction chamber. The trap tube runs into a drain tube. The reaction block is fitted with gas (preferably N.sub.2) lines and a septum seal such that gas pressurization empties the reaction chambers into the drain tubes. The drain tubes are arranged so as to mate directly with a standard 96 well microtiter plate for the collection of material. A docking station provides for secure registration of the reaction blocks, and provides for introduction of gases and liquids into the reaction blocks.
    Type: Grant
    Filed: April 17, 1995
    Date of Patent: March 11, 1997
    Assignee: Ontogen Corporation
    Inventors: John Cargill, Romaine R. Maiefski