A. Ishida

Publications24
h-index10
Citations196
Highly Influential Citations2
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Design and synthesis of a highly selective EP2-receptor agonist.
EP2-receptor selective agonist 3 was identified by the structural hybridization of butaprost 1a and PGE(2) 2a. Based on this information, a chemically more stabilized 4 was discovered as another… Expand
  • 38
  • 1
Highly potent PDE4 inhibitors with therapeutic potential.
The hypothesis that the dose-limiting side effects of PDE4 inhibitors could be mediated via the central nervous system prompted us to design and synthesize a hydrophilic piperidine analog to improve… Expand
  • 12
  • 1
Design and synthesis of a selective EP4-receptor agonist. Part 2: 3,7-dithiaPGE1 derivatives with high selectivity.
To identify new highly selective EP4-agonists, further modification of the 16-phenyl moiety of 1 was continued. 16-(3-methoxymethyl)phenyl derivatives 13-(6q) and 16-(3-ethoxymethyl)phenyl… Expand
  • 14
Design and synthesis of a selective EP4-receptor agonist. Part 2: 3,7-dithiaPGE1 derivatives with high selectivity.
Abstract To identify new highly selective EP4-agonists, further modification of the 16-phenyl moiety of 1 was continued. 16-(3-Methoxymethyl)phenyl derivatives 13- 6q and 16-(3-ethoxymethyl)phenyl… Expand
  • 12
Discovery of new orally active phosphodiesterase (PDE4) inhibitors.
A series of 4-anilinopyrazolopyridine derivatives were synthesized and biologically evaluated as inhibitors of phosphodiesterase (PDE4). Chemical modification of 3, a structurally new chemical lead… Expand
  • 12
Development of a highly selective EP2-receptor agonist. Part 1: identification of 16-hydroxy-17,17-trimethylene PGE2 derivatives.
Design and synthesis of an EP2-receptor selective agonist began with the chemical modification of alpha- and omega-chains of butaprost 1a, which exhibits an affinity for the IP-receptor. Two series… Expand
  • 16
Highly potent PDE4 inhibitors with therapeutic potential.
Based on the hypothesis that the dose-limiting side effects of PDE4 inhibitors could be mediated via the central nervous system (CNS), design and synthesis of a hydrophilic analogue is considered to… Expand
  • 12
Orally active PDE4 inhibitors with therapeutic potential.
Based on the successful results in the clinical trial of Ariflo, further optimization of the spatial arrangement of the three pharmacophores (carboxylic acid moiety, nitrile moiety and… Expand
  • 12
Orally active PDE4 inhibitor with therapeutic potential.
Based on the promising results obtained by the clinical trial of Ariflo, further optimization of the spatial arrangement of the three pharmacophores (the carboxylic acid moiety, nitrile moiety and… Expand
  • 7
Discovery of Gemilukast (ONO-6950), a Dual CysLT1 and CysLT2 Antagonist As a Therapeutic Agent for Asthma.
An orally active dual CysLT1 and CysLT2 antagonist possessing a distinctive structure which consists of triple bond and dicarboxylic acid moieties is described. Gemilukast (ONO-6950) was generated… Expand
  • 9
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