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  1. Article: Enhancing the diversity of a corporate database using chemical database clustering and analysis.

    Shemetulskis, N E / Dunbar, J B / Dunbar, B W / Moreland, D W / Humblet, C

    Journal of computer-aided molecular design

    1995  Volume 9, Issue 5, Page(s) 407–416

    Abstract: The contribution that the Chemical Abstracts structural database (CAST-3D) and the Maybridge database (MAY) would make to diversifying the structural information and property space spanned by our corporate database (CBI) is assessed. A subset of the CAST- ...

    Abstract The contribution that the Chemical Abstracts structural database (CAST-3D) and the Maybridge database (MAY) would make to diversifying the structural information and property space spanned by our corporate database (CBI) is assessed. A subset of the CAST-3D database has been selected to augment the structural diversity of various electronic databases used in computer-assisted drug design projects. The analysis of the MAY database directly offers the potential to expand the CBI compound library, but also provides a source for structural diversity in a format suitable for computer-assisted database searching and molecular design. The analysis performed is twofold. First, a nonhierarchical clustering technique available in the Daylight clustering package is applied to evaluate the structural differences between databases. The comparison is then extended to analyze various structure-derived property spaces calculated from molecular descriptors such as the logarithm of the octanol-water partition coefficient (CLOGP), the molar refractivity (CMR) and the electronic dipole moment (CDM). The diversity contribution of each database to these property spaces is quantified in relation to our corporate database.
    MeSH term(s) Chemical Phenomena ; Chemistry, Physical ; Cluster Analysis ; Computer-Aided Design ; Database Management Systems ; Databases, Factual ; Molecular Structure
    Language English
    Publishing date 1995-10
    Publishing country Netherlands
    Document type Comparative Study ; Journal Article
    ZDB-ID 808166-9
    ISSN 1573-4951 ; 0920-654X
    ISSN (online) 1573-4951
    ISSN 0920-654X
    DOI 10.1007/bf00123998
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Feather damage due to mycotic infections in wild turkeys.

    Davidson, W R / Shotts, E B / Teska, J / Moreland, D W

    Journal of wildlife diseases

    1989  Volume 25, Issue 4, Page(s) 534–539

    Abstract: Wild turkeys (Meleagris gallopavo) from Pearl River Wildlife Management Area, St. Tammany Parish and from adjacent St. Helena Parish, Louisiana (USA) were observed to have broken and frayed rectrices. The condition was noted in 21% of 90 wild turkeys ... ...

    Abstract Wild turkeys (Meleagris gallopavo) from Pearl River Wildlife Management Area, St. Tammany Parish and from adjacent St. Helena Parish, Louisiana (USA) were observed to have broken and frayed rectrices. The condition was noted in 21% of 90 wild turkeys harvested by hunters during the springs of 1985 through 1988 from the Pearl River Wildlife Management Area. Damage to feathers ranged from mild to severe. Histologic and microbiologic study of five birds disclosed colonization and invasion of the rachis sheath and pulp by fungi of the genera Aspergillus, Curvularia, Cladosporium, Dactylella, Exophiala, Helminthosporium and Trichophyton and by Streptomyces. Sterilized normal rectrices from wild turkeys were inoculated with these organisms and subsequently developed damage that was histologically compatible with field cases. The condition was diagnosed as a multiple etiology mycosis. Successful colonization and invasion of experimentally inoculated feathers required addition of moisture and elevation of relative humidity within the cultures. The apparent high moisture requirements of the fungi suggest that late winter and early spring flooding may be a probable predisposing factor for this condition.
    MeSH term(s) Animals ; Animals, Wild ; Bird Diseases/pathology ; Feathers/pathology ; Mycoses/pathology ; Mycoses/veterinary ; Tail ; Turkeys
    Language English
    Publishing date 1989-10
    Publishing country United States
    Document type Journal Article
    ZDB-ID 410709-3
    ISSN 1943-3700 ; 0090-3558
    ISSN (online) 1943-3700
    ISSN 0090-3558
    DOI 10.7589/0090-3558-25.4.534
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Identification and characterization of m4 selective muscarinic antagonists.

    Augelli-Szafran, C E / Jaen, J C / Moreland, D W / Nelson, C B / Penvose-Yi, J R / Schwarz, R D

    Bioorganic & medicinal chemistry letters

    1998  Volume 8, Issue 15, Page(s) 1991–1996

    Abstract: Our interest in the area of m4 muscarinic antagonists had led us to study a series of benzoxazine isoquinolines. One of the most potent and selective compounds of this series is example 1 with an IC50 value of 90.7 nM at m4 receptors, and 72-fold (m1), ... ...

    Abstract Our interest in the area of m4 muscarinic antagonists had led us to study a series of benzoxazine isoquinolines. One of the most potent and selective compounds of this series is example 1 with an IC50 value of 90.7 nM at m4 receptors, and 72-fold (m1), 38-fold (m2), 10-fold (m3), and 82-fold (m5) more selective compared to the other receptors. The synthesis and receptor binding affinity of analogs of 1 are reported.
    MeSH term(s) Isoquinolines/chemistry ; Isoquinolines/metabolism ; Isoquinolines/pharmacology ; Muscarinic Antagonists/chemistry ; Muscarinic Antagonists/metabolism ; Muscarinic Antagonists/pharmacology ; Protein Binding ; Receptor, Muscarinic M4 ; Receptors, Muscarinic/drug effects ; Receptors, Muscarinic/metabolism
    Chemical Substances Isoquinolines ; Muscarinic Antagonists ; Receptor, Muscarinic M4 ; Receptors, Muscarinic
    Language English
    Publishing date 1998-08-04
    Publishing country England
    Document type Journal Article
    ZDB-ID 1063195-1
    ISSN 1464-3405 ; 0960-894X
    ISSN (online) 1464-3405
    ISSN 0960-894X
    DOI 10.1016/s0960-894x(98)00351-5
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Synthesis and SAR of bulky 1-azabicyclo[2.2.1]-3-one oximes as muscarinic receptor subtype selective agonists.

    Tecle, H / Lauffer, D J / Mirzadegan, T / Moos, W H / Moreland, D W / Pavia, M R / Schwarz, R D / Davis, R E

    Life sciences

    1993  Volume 52, Issue 5-6, Page(s) 505–511

    Abstract: The synthesis of a series of potent and efficacious 1-azabicyclo[2.2.1]heptan-3-one oxime muscarinic agonists is described. The oximes have extended appendages designed to span the cavity defined by the seven transmembrane helices of the muscarinic ... ...

    Abstract The synthesis of a series of potent and efficacious 1-azabicyclo[2.2.1]heptan-3-one oxime muscarinic agonists is described. The oximes have extended appendages designed to span the cavity defined by the seven transmembrane helices of the muscarinic receptor. Some members of the series are selective for receptors of the m1 subtype. One such oxime, 31, shows affinity and functional selectivity for m1 over m2, m3, and m4 muscarinic receptor types.
    MeSH term(s) Animals ; Bridged Bicyclo Compounds/chemical synthesis ; Bridged Bicyclo Compounds/pharmacology ; CHO Cells ; Cerebral Cortex/drug effects ; Colforsin/pharmacology ; Cricetinae ; Cyclic AMP/metabolism ; Dioxolanes/metabolism ; Inositol Phosphates/metabolism ; Ligands ; Oximes/chemical synthesis ; Oximes/pharmacology ; Parasympathomimetics/chemical synthesis ; Parasympathomimetics/metabolism ; Parasympathomimetics/pharmacology ; Quinuclidinyl Benzilate/metabolism ; Radioligand Assay ; Rats ; Receptors, Muscarinic/drug effects ; Receptors, Muscarinic/metabolism ; Structure-Activity Relationship
    Chemical Substances Bridged Bicyclo Compounds ; Dioxolanes ; Inositol Phosphates ; Ligands ; Oximes ; Parasympathomimetics ; Receptors, Muscarinic ; Colforsin (1F7A44V6OU) ; 2-methyldioxolane (497-26-7) ; Quinuclidinyl Benzilate (6581-06-2) ; Cyclic AMP (E0399OZS9N)
    Language English
    Publishing date 1993
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 3378-9
    ISSN 1879-0631 ; 0024-3205
    ISSN (online) 1879-0631
    ISSN 0024-3205
    DOI 10.1016/0024-3205(93)90308-p
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Identification and characterization of m1 selective muscarinic receptor antagonists1.

    Augelli-Szafran, C E / Blankley, C J / Jaen, J C / Moreland, D W / Nelson, C B / Penvose-Yi, J R / Schwarz, R D / Thomas, A J

    Journal of medicinal chemistry

    1999  Volume 42, Issue 3, Page(s) 356–363

    Abstract: A series of esters of 1,4-disubstituted tetrahydropyridine carboxylic acids (I) has been synthesized and characterized as potential m1 selective muscarinic receptor antagonists. The affinity of these compounds for the five human muscarinic receptor ... ...

    Abstract A series of esters of 1,4-disubstituted tetrahydropyridine carboxylic acids (I) has been synthesized and characterized as potential m1 selective muscarinic receptor antagonists. The affinity of these compounds for the five human muscarinic receptor subtypes (Hm1-Hm5) was determined by the displacement of [3H]-NMS binding using membranes from transfected Chinese hamster ovarian cells. One of the most potent and selective compounds of this series is an analogue of I [11, R1 = (CH2)5CH3], which has an IC50 value of 27.3 nM at the m1 receptor and possesses 100-fold (m2), 48-fold (m3), 74-fold (m4), and 19-fold (m5) selectivities at the other receptors. Thus, this analogue appears to be more selective on the basis of binding than the prototypical m1 antagonist, pirenzepine. Functional data, such as the inhibition of carbachol-stimulated phosphatidylinositol hydrolysis, on selected analogues confirmed the muscarinic antagonistic properties of this chemical series.
    MeSH term(s) Animals ; CHO Cells ; Cricetinae ; Humans ; Magnetic Resonance Spectroscopy ; Mass Spectrometry ; Molecular Structure ; Muscarinic Antagonists/chemistry ; Muscarinic Antagonists/classification ; Muscarinic Antagonists/pharmacology ; Structure-Activity Relationship
    Chemical Substances Muscarinic Antagonists
    Language English
    Publishing date 1999-02-11
    Publishing country United States
    Document type Journal Article
    ZDB-ID 218133-2
    ISSN 1520-4804 ; 0022-2623
    ISSN (online) 1520-4804
    ISSN 0022-2623
    DOI 10.1021/jm980067l
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Discovery of selective, small-molecule inhibitors of RNA complexes--I. The Tat protein/TAR RNA complexes required for HIV-1 transcription.

    Mei, H Y / Mack, D P / Galan, A A / Halim, N S / Heldsinger, A / Loo, J A / Moreland, D W / Sannes-Lowery, K A / Sharmeen, L / Truong, H N / Czarnik, A W

    Bioorganic & medicinal chemistry

    1997  Volume 5, Issue 6, Page(s) 1173–1184

    Abstract: We have developed a therapeutic program focusing on the inhibition of a human immunodeficiency virus-1 specific protein-RNA interaction. This program begins with a search for small organic molecules that would interfere with the binding of Tat protein to ...

    Abstract We have developed a therapeutic program focusing on the inhibition of a human immunodeficiency virus-1 specific protein-RNA interaction. This program begins with a search for small organic molecules that would interfere with the binding of Tat protein to TAR RNA. The methodologies chosen to study the HIV-1 Tat-TAR interaction and inhibition include gel mobility shift assays, scintillation proximity assays, filtration assays, and mass spectrometry. These methods helped establish in vitro high-throughput screening assays which rapidly identified Tat-TAR inhibitors from our corporate compound library. Tat-activated reporter gene assays were then used to investigate the cellular activities of the Tat-TAR inhibitors. The cellular activity, selectivity, and toxicity data for select Tat-TAR inhibitors were determined. Evaluation of both the cellular data and the Tat-TAR inhibition results led to further testing in anti-HIV-1 infection assays.
    MeSH term(s) Amino Acid Sequence ; Aminoglycosides ; Anti-Bacterial Agents/pharmacology ; Anti-HIV Agents/pharmacology ; Antineoplastic Agents, Phytogenic/pharmacology ; Base Sequence ; Benzodiazepinones/pharmacology ; Camptothecin/pharmacology ; Gene Products, tat/drug effects ; Gene Products, tat/metabolism ; HIV-1/drug effects ; HIV-1/metabolism ; HIV-1/physiology ; HeLa Cells/drug effects ; Humans ; Molecular Sequence Data ; Pyrroles/pharmacology ; RNA, Viral/antagonists & inhibitors ; RNA, Viral/metabolism ; Transcription, Genetic/drug effects ; Transcriptional Activation/drug effects ; Transcriptional Activation/physiology ; Virus Replication/drug effects ; Virus Replication/physiology ; tat Gene Products, Human Immunodeficiency Virus
    Chemical Substances Aminoglycosides ; Anti-Bacterial Agents ; Anti-HIV Agents ; Antineoplastic Agents, Phytogenic ; Benzodiazepinones ; Gene Products, tat ; Pyrroles ; RNA, Viral ; tat Gene Products, Human Immunodeficiency Virus ; Ro 5-3335 (30195-30-3) ; Camptothecin (XT3Z54Z28A)
    Language English
    Publishing date 1997-07-01
    Publishing country England
    Document type Journal Article
    ZDB-ID 1161284-8
    ISSN 1464-3391 ; 0968-0896
    ISSN (online) 1464-3391
    ISSN 0968-0896
    DOI 10.1016/s0968-0896(97)00064-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: CI-1017, a functionally M1-selective muscarinic agonist: design, synthesis, and preclinical pharmacology.

    Tecle, H / Schwarz, R D / Barrett, S D / Callahan, M J / Caprathe, B W / Davis, R E / Doyle, P / Emmerling, M / Lauffer, D J / Mirzadegan, T / Moreland, D W / Lipiniski, W / Nelson, C / Raby, C / Spencer, C / Spiegel, K / Thomas, A J / Jaen, J C

    Pharmaceutica acta Helvetiae

    2000  Volume 74, Issue 2-3, Page(s) 141–148

    Abstract: The five muscarinic receptor subtypes (M1-M5) are characterized by seven helices that define a transmembrane cavity which serves as the binding pocket for agonists and antagonists. The five cavities appear to be topographically different enough to permit ...

    Abstract The five muscarinic receptor subtypes (M1-M5) are characterized by seven helices that define a transmembrane cavity which serves as the binding pocket for agonists and antagonists. The five cavities appear to be topographically different enough to permit subtype selectivity among antagonists but not among classical agonists which tend to be smaller in size than antagonists. It was reasoned that synthesis of muscarinic agonists longer/larger than their classical counterparts might result in subtype selectivity. M1 subtype selectivity was found in a class of 1-azabicyclo[2.2.1]heptan-3-one, O-(3-aryl-2-propynyl) oximes. One of these, CI-1017, improved spatial memory of hippocampally deficient mice and nbM-lesioned rats at doses of 1.0-3.2 and 0.1-0.3 mg/kg, respectively, while producing parasympathetic side effects only at very high doses (100-178 mg/kg). Additionally, CI-1017 inhibited production of amyloidogenic A beta and increased secretion of soluble APP. Thus, CI-1017, besides treating AD symptomatically, may also retard its progression. CI-1017 has recently completed phase I clinical trials.
    MeSH term(s) Animals ; Bridged Bicyclo Compounds, Heterocyclic/chemical synthesis ; Bridged Bicyclo Compounds, Heterocyclic/pharmacology ; Cloning, Molecular ; Humans ; Male ; Maze Learning/drug effects ; Memory/drug effects ; Mice ; Mice, Inbred C57BL ; Muscarinic Agonists/chemical synthesis ; Muscarinic Agonists/pharmacology ; Oximes/chemical synthesis ; Oximes/pharmacology ; Rats ; Receptor, Muscarinic M1 ; Receptors, Muscarinic/drug effects ; Receptors, Muscarinic/metabolism ; Second Messenger Systems/drug effects
    Chemical Substances Bridged Bicyclo Compounds, Heterocyclic ; Muscarinic Agonists ; Oximes ; Receptor, Muscarinic M1 ; Receptors, Muscarinic ; PD 142505-0028 (161774-09-0)
    Language English
    Publishing date 2000-03
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 210383-7
    ISSN 0031-6865
    ISSN 0031-6865
    DOI 10.1016/s0031-6865(99)00027-8
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Design and synthesis of m1-selective muscarinic agonists: (R)-(-)-(Z)-1-Azabicyclo[2.2.1]heptan-3-one, O-(3-(3'-methoxyphenyl)-2-propynyl)oxime maleate (CI-1017), a functionally m1-selective muscarinic agonist.

    Tecle, H / Barrett, S D / Lauffer, D J / Augelli-Szafran, C / Brann, M R / Callahan, M J / Caprathe, B W / Davis, R E / Doyle, P D / Eubanks, D / Lipiniski, W / Mirzadegan, T / Moos, W H / Moreland, D W / Nelson, C B / Pavia, M R / Raby, C / Schwarz, R D / Spencer, C J /
    Thomas, A J / Jaen, J C

    Journal of medicinal chemistry

    1998  Volume 41, Issue 14, Page(s) 2524–2536

    Abstract: The synthesis and SAR of a series of (Z)-(+/-)-1-azabicyclo[2.2. 1]heptan-3-one, O-(3-aryl-2-propynyl)oximes are described. The biochemistry and pharmacology of 24Z (PD 142505) and its enantiomers are highlighted. 24Z is functionally an m1-selective ... ...

    Abstract The synthesis and SAR of a series of (Z)-(+/-)-1-azabicyclo[2.2. 1]heptan-3-one, O-(3-aryl-2-propynyl)oximes are described. The biochemistry and pharmacology of 24Z (PD 142505) and its enantiomers are highlighted. 24Z is functionally an m1-selective muscarinic agonist. Efficacy and m1 selectivity reside in the R enantiomer, (R)-24Z (CI-1017).
    MeSH term(s) 3T3 Cells ; Adenylyl Cyclase Inhibitors ; Animals ; Bridged Bicyclo Compounds, Heterocyclic/chemical synthesis ; Bridged Bicyclo Compounds, Heterocyclic/metabolism ; Bridged Bicyclo Compounds, Heterocyclic/pharmacology ; Bridged Bicyclo Compounds, Heterocyclic/toxicity ; CHO Cells ; Cricetinae ; Drug Design ; Enzyme Inhibitors/chemical synthesis ; Enzyme Inhibitors/metabolism ; Enzyme Inhibitors/pharmacology ; Enzyme Inhibitors/toxicity ; Humans ; Inositol Phosphates/biosynthesis ; Male ; Memory/drug effects ; Mice ; Muscarinic Agonists/chemical synthesis ; Muscarinic Agonists/metabolism ; Muscarinic Agonists/pharmacology ; Muscarinic Agonists/toxicity ; Oximes/chemical synthesis ; Oximes/metabolism ; Oximes/pharmacology ; Oximes/toxicity ; Rats ; Receptor, Muscarinic M1 ; Receptors, Muscarinic/drug effects ; Receptors, Muscarinic/metabolism ; Stereoisomerism ; Structure-Activity Relationship ; Transfection
    Chemical Substances Adenylyl Cyclase Inhibitors ; Bridged Bicyclo Compounds, Heterocyclic ; Enzyme Inhibitors ; Inositol Phosphates ; Muscarinic Agonists ; Oximes ; Receptor, Muscarinic M1 ; Receptors, Muscarinic ; PD 142505-0028 (161774-09-0)
    Language English
    Publishing date 1998-07-02
    Publishing country United States
    Document type Journal Article
    ZDB-ID 218133-2
    ISSN 1520-4804 ; 0022-2623
    ISSN (online) 1520-4804
    ISSN 0022-2623
    DOI 10.1021/jm960683m
    Database MEDical Literature Analysis and Retrieval System OnLINE

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