• DOI:10.1021/JM00111A048
• Corpus ID: 30782976

Synthesis and biological evaluation of substituted benzenesulfonamides as novel potent membrane-bound phospholipase A2 inhibitors.

@article{Oinuma1991SynthesisAB,
  title={Synthesis and biological evaluation of substituted benzenesulfonamides as novel potent membrane-bound phospholipase A2 inhibitors.},
  author={Hitoshi Oinuma and T Takamura and Taizou Hasegawa and K Nomoto and Tomio Naitoh and Yoshiharu Daiku and Shin-ichi Hamano and Hiroshi Kakisawa and Nobuyoshi Minami},
  journal={Journal of medicinal chemistry},
  year={1991},
  volume={34 7},
  pages={
          2260-7
        }
}

• H. Oinuma, T. Takamura, +6 authors N. Minami
• Published 1 July 1991
• Chemistry, Biology
• Journal of medicinal chemistry

A novel series of 4-[N-methyl-N-[(E)-3-[4-(methylsulfonyl)phenyl]-2- propenoyl]amino]benzenesulfonamides has been prepared and evaluated as membrane-bound phospholipase A2 inhibitors. A structure-activity relationship study indicated that the optimum potency was realized with the N-(phenylalkyl)piperidine derivatives 3 and 4. These compounds inhibited the liberation of arachidonic acid from the rabbit heart membrane fraction with IC30 values of 0.028 and 0.009 microM, respectively. Several compounds (3, 4, and 28), which proved to be potent inhibitors in vitro, significantly reduced the size of myocardial infarction in coronary occluded rats by iv administrations prior to the ligation. N-(1-Benzyl-4-piperidinyl)-4-[N-methyl-N-[(E)-3-[ 4-(methylsulfonyl)phenyl]-2-propenoyl]amino]-benzenesulfonamide (3, ER-3826), which showed the protective in vivo effects at doses higher than 0.3 mg/kg iv, was finally chosen as a leading candidate.