5-Anthracenylidene and 5-(4-Benzyloxy-3-methoxy)benzylidene-hydantoin and 2-Thiohydantoin Derivatives, Synthesis, and S-Alkylation
作者:Youssef L. Aly、Ashraf A. El-Shehawy、Adel M. Attia、Mohmed E. Sobh
DOI:10.1080/10426507.2010.525977
日期:2011.7.1
2-thiohydantoin derivatives 3a-g were prepared by condensation of anthracene-9-carboxaldehyde and 4-benzyloxy-3-methoxybenzylaldehyde with hydantoin and 2-thiohydantoin derivatives. Compounds 3a, b, f undergo Mannich reaction with formaldehyde and morpholine to give the corresponding Mannich products 4a–c. For the synthesis of alkylmercaptohydantoin 5a–o, the potassium salt of compounds 3a, b, e, f were
Results of molecular modelling confirmed the interaction with the allosteric site of PBP2a as a probable MDR-reversing mechanism. In RTE, the compounds inhibited AcrAB-TolC even to 90% (19). The 4-phenylbenzylidene derivative (15) demonstrated significant MDR-reversal “dual action” for β-lactam antibiotics in MRSA and inhibited AcrAB-TolC in K. aerogenes. 15 displayed also satisfied solubility and safety