Synthesis and DNase I inhibitory properties of some 4‐thiazolidinone derivatives
作者:Ana Kolarević、Budimir S. Ilić、Gordana Kocić、Zdravko Džambaski、Andrija Šmelcerović、Bojan P. Bondžić
DOI:10.1002/jcb.27339
日期:2019.1
residues Glu 39 and Asp 168. The three most active compounds against both commercial and rat liver DNase I (31, 38, and 41) exhibited favorable physico-chemical, pharmacokinetic, and toxicological properties. These observations could be utilized to guide the rational design and optimization of novel thiazolidinone inhibitors. Thiazolidinones as novel DNase I inhibitors could have potential therapeutic
2-Alkylidene-4-oxothiazolidine Vinyl Bromides: Versatile Precursors for C(5) Functionalization via Pyridine-Assisted Bromine Transfer
作者:Marija Baranac Stojanović、Rade Marković
DOI:10.1055/s-2006-933136
日期:——
A series of structurally diverse vinylbromides, derived from push-pull 2-alkylidene-4-oxothiazolidines, undergoes pyridine-assisted bromine transfer from the C=C bond to the C(5) position, enabling different C(5) functionalization. The type of the product depends on the C(5) substituent and, in some cases, the transformation is affected by the substituent at the C=C bond.
transition metalcarbonylanion, [Re(CO)5]Na (pKa = 21.1), on 2-(1-bromoalkylidene)thiazolidin-4-ones is significantly faster than abstraction of an acidic lactam hydrogen (pKa ∼17–18), when the generated carbanion is stabilized by an α-CN or α-PhCO group. The bromophilic reaction of 2-(1-bromoalkylidene)thiazolidin-4-one, having an α-CN electron-withdrawing group, resulted in formation of a new metallacyclic
过渡金属羰基阴离子[Re(CO)5 ] Na(p K a = 21.1)对2-(1-溴代亚烷基)噻唑烷丁-4-酮的亲油攻击明显快于酸性内酰胺氢(p ķ一个~17-18),当所产生的负碳离子通过α-CN或α-PhCO基稳定化。具有α-CN吸电子基团的2-(1-溴亚烷基)噻唑烷-4-酮的亲油反应导致形成新的金属环阴离子配合物。用更少的反应性乙烯基溴化物,含有α-CONHPh或α-CO 2的Et基,只有去质子化是观察。通过与9-甲基氟碳负离子(p K一个9- methylfluorene的是22.3),它通过一个去质子化途径专门反应。