Optimizing thiadiazole analogues of resveratrol versus three chemopreventive targets
摘要:
Chemoprevention is an approach to decrease cancer morbidity and mortality through inhibition of carcinogenesis and prevention of disease progression. Although the trans stilbene derivative resveratrol has chemopreventive properties, its action is compromised by weak non-specific effects on many biological targets. Replacement of the stilbene ethylenic bridge of resveratrol with a 1,2,4-thiadiazole heterocycle and modification of the substituents on the two aromatic rings afforded potential chemopreventive agents with enhanced potencies and selectivities when evaluated as inhibitors of aromatase and NF-kappa B and inducers of quinone reductase 1 (QR1). (C) 2011 Elsevier Ltd. All rights reserved.
Photochemistry of the Nitrogen-Thiocarbonyl Systems. 30. Intermolecular Photoaddition Reaction of Arenecarbothioamides to 2-Methoxy- and 2-Trimethylsiloxyfurans. Facile Synthesis of Arene-Fused Aminobenzoates by Novel Photoinduced Benzannulation.
作者:Kazuaki ODA、Masayuki SAKAI、Minoru MACHIDA
DOI:10.1248/cpb.45.584
日期:——
Irradiation of arenecarbothioamides with 2-methoxyfuran in benzene solution gave arene-fused aminobenzoates in moderate yields accompanied by small smounts of arylpyrroles or arylthiophenes. In the case of 2-trimethylsiloxyfuran, arenecarbothioamides gave arene-fused aminobenzoates in good yields as sole products. It was demonstrated that certain furan derivatives are potentially useful as building blocks in photoinduced benzannulation.