Discovery and SAR of novel [1,6]Naphthyridines as potent inhibitors of spleen tyrosine kinase (SYK)

The discovery of novel 5,7-disubstituted[1,6]naphthyridines as potent inhibitors of Spleen Tyrosine Kinase (SYK) is discussed. The SAR reveals the necessity for a 7-aryl group with preference towards para substitution and that this in combination with 5-aminoalkylamino substituents further improved...

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Published inBioorganic & medicinal chemistry letters Vol. 13; no. 8; pp. 1415 - 1418
Main Authors Cywin, Charles L, Zhao, Bao-Ping, McNeil, Daniel W, Hrapchak, Matt, Prokopowicz, Anthony S, Goldberg, Daniel R, Morwick, Tina M, Gao, Amy, Jakes, Scott, Kashem, Mohammed, Magolda, Ronald L, Soll, Richard M, Player, Mark R, Bobko, Mark A, Rinker, James, DesJarlais, Renee L, Winters, Michael P
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 17.04.2003
Elsevier
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Abstract The discovery of novel 5,7-disubstituted[1,6]naphthyridines as potent inhibitors of Spleen Tyrosine Kinase (SYK) is discussed. The SAR reveals the necessity for a 7-aryl group with preference towards para substitution and that this in combination with 5-aminoalkylamino substituents further improved the potency of the compounds. The initial SAR as well as a survey of the other positions is discussed in detail. Graphic
AbstractList The discovery of novel 5,7-disubstituted[1,6]naphthyridines as potent inhibitors of Spleen Tyrosine Kinase (SYK) is discussed. The SAR reveals the necessity for a 7-aryl group with preference towards para substitution and that this in combination with 5-aminoalkylamino substituents further improved the potency of the compounds. The initial SAR as well as a survey of the other positions is discussed in detail. Graphic
The discovery of novel 5,7-disubstituted[1,6]naphthyridines as potent inhibitors of Spleen Tyrosine Kinase (SYK) is discussed. The SAR reveals the necessity for a 7-aryl group with preference towards para substitution and that this in combination with 5-aminoalkylamino substituents further improved the potency of the compounds. The initial SAR as well as a survey of the other positions is discussed in detail.
Author Prokopowicz, Anthony S
Winters, Michael P
Jakes, Scott
Cywin, Charles L
Morwick, Tina M
Soll, Richard M
Hrapchak, Matt
McNeil, Daniel W
Goldberg, Daniel R
Player, Mark R
Kashem, Mohammed
Rinker, James
Zhao, Bao-Ping
Gao, Amy
Magolda, Ronald L
DesJarlais, Renee L
Bobko, Mark A
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  organization: 3-Dimensional Pharmaeuticals, Inc., 665 Stockton Drive, Suite 104, Exton, PA 19341, USA
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Cites_doi 10.1084/jem.184.1.71
10.1055/s-2000-6254
10.1016/S0021-9258(18)43936-1
10.1128/MCB.15.8.4149
10.1016/S0167-5699(99)01574-1
10.1016/S0161-5890(02)00068-8
10.1128/MCB.15.3.1582
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Issue 8
Keywords Phosphorylation
Enzyme
Nitrogen heterocycle
Transferases
Enzyme inhibitor
In vitro
Diamine
Signal transduction
Structure activity relation
Bicyclic compound
Naphtyridine derivatives
Chemical synthesis
Protein-tyrosine kinase
Aromatic amine
Language English
License CC BY 4.0
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References Rivera, Brugge (BIB4) 1995; 15
Oliver, Burg, Wilson, McLaughlin, Geahlen (BIB6) 1994; 269
BIB9
Turner, Schweighoffer, Colucci, Di Santo, Tybulewicz (BIB1) 2000; 21
Siraganian, Zhang, Suzuki, Sada (BIB2) 2001; 38
Brun, Gil, Mestres, Parra (BIB7) 2000
Ames, Dodds (BIB8) 1972
Taylor, Karas, Ram, Green, Seidel-Dugan (BIB3) 1995; 15
Zhang, Berenstein, Evans, Siraganian (BIB5) 1996; 184
BIB10
Ames (10.1016/S0960-894X(03)00163-X_BIB8) 1972
Turner (10.1016/S0960-894X(03)00163-X_BIB1) 2000; 21
Zhang (10.1016/S0960-894X(03)00163-X_BIB5) 1996; 184
Brun (10.1016/S0960-894X(03)00163-X_BIB7) 2000
Oliver (10.1016/S0960-894X(03)00163-X_BIB6) 1994; 269
Taylor (10.1016/S0960-894X(03)00163-X_BIB3) 1995; 15
Siraganian (10.1016/S0960-894X(03)00163-X_BIB2) 2001; 38
Rivera (10.1016/S0960-894X(03)00163-X_BIB4) 1995; 15
References_xml – volume: 21
  start-page: 148
  year: 2000
  ident: BIB1
  publication-title: Immunology Today
  contributor:
    fullname: Tybulewicz
– volume: 15
  start-page: 4149
  year: 1995
  ident: BIB3
  publication-title: Mol. Cell Biol.
  contributor:
    fullname: Seidel-Dugan
– year: 1972
  ident: BIB8
  publication-title: J. Chem. Soc., Perkin Trans. 1,
  contributor:
    fullname: Dodds
– volume: 15
  start-page: 1582
  year: 1995
  ident: BIB4
  publication-title: Mol. Cell. Biol.
  contributor:
    fullname: Brugge
– ident: BIB10
– volume: 269
  start-page: 29697
  year: 1994
  ident: BIB6
  publication-title: J. Biol. Chem.
  contributor:
    fullname: Geahlen
– volume: 38
  start-page: 1229
  year: 2001
  ident: BIB2
  publication-title: Molecular Immunology
  contributor:
    fullname: Sada
– volume: 184
  start-page: 71
  year: 1996
  ident: BIB5
  publication-title: J. Exp. Med.
  contributor:
    fullname: Siraganian
– ident: BIB9
– start-page: 273
  year: 2000
  ident: BIB7
  publication-title: Synthesis
  contributor:
    fullname: Parra
– volume: 184
  start-page: 71
  year: 1996
  ident: 10.1016/S0960-894X(03)00163-X_BIB5
  publication-title: J. Exp. Med.
  doi: 10.1084/jem.184.1.71
  contributor:
    fullname: Zhang
– year: 1972
  ident: 10.1016/S0960-894X(03)00163-X_BIB8
  publication-title: J. Chem. Soc., Perkin Trans. 1, 705, could be employed for the synthesis of III
  contributor:
    fullname: Ames
– start-page: 273
  year: 2000
  ident: 10.1016/S0960-894X(03)00163-X_BIB7
  publication-title: Synthesis
  doi: 10.1055/s-2000-6254
  contributor:
    fullname: Brun
– volume: 269
  start-page: 29697
  year: 1994
  ident: 10.1016/S0960-894X(03)00163-X_BIB6
  publication-title: J. Biol. Chem.
  doi: 10.1016/S0021-9258(18)43936-1
  contributor:
    fullname: Oliver
– volume: 15
  start-page: 4149
  year: 1995
  ident: 10.1016/S0960-894X(03)00163-X_BIB3
  publication-title: Mol. Cell Biol.
  doi: 10.1128/MCB.15.8.4149
  contributor:
    fullname: Taylor
– volume: 21
  start-page: 148
  year: 2000
  ident: 10.1016/S0960-894X(03)00163-X_BIB1
  publication-title: Immunology Today
  doi: 10.1016/S0167-5699(99)01574-1
  contributor:
    fullname: Turner
– volume: 38
  start-page: 1229
  year: 2001
  ident: 10.1016/S0960-894X(03)00163-X_BIB2
  publication-title: Molecular Immunology
  doi: 10.1016/S0161-5890(02)00068-8
  contributor:
    fullname: Siraganian
– volume: 15
  start-page: 1582
  year: 1995
  ident: 10.1016/S0960-894X(03)00163-X_BIB4
  publication-title: Mol. Cell. Biol.
  doi: 10.1128/MCB.15.3.1582
  contributor:
    fullname: Rivera
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Snippet The discovery of novel 5,7-disubstituted[1,6]naphthyridines as potent inhibitors of Spleen Tyrosine Kinase (SYK) is discussed. The SAR reveals the necessity...
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pubmed
pascalfrancis
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StartPage 1415
SubjectTerms Animals
Biological and medical sciences
Enzyme Inhibitors - chemistry
Enzyme Inhibitors - pharmacology
Enzyme Precursors - antagonists & inhibitors
Humans
Inhibitory Concentration 50
Intracellular Signaling Peptides and Proteins
Medical sciences
Miscellaneous
Naphthyridines - chemistry
Naphthyridines - pharmacology
Pharmacology. Drug treatments
Protein-Tyrosine Kinases - antagonists & inhibitors
Spleen - enzymology
Structure-Activity Relationship
Syk Kinase
Title Discovery and SAR of novel [1,6]Naphthyridines as potent inhibitors of spleen tyrosine kinase (SYK)
URI https://dx.doi.org/10.1016/S0960-894X(03)00163-X
https://www.ncbi.nlm.nih.gov/pubmed/12668002
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