Novel approach of multi-targeted thiazoles and thiazolidenes toward anti-inflammatory and anticancer therapy—dual inhibition of COX-2 and 5-LOX enzymes
作者:Jaismy Jacob P、Manju S L
DOI:10.1007/s00044-020-02655-9
日期:2021.1
molecules have shown the potential for an improved anti-inflammatoryprofile. Most promising compound among the series (2-(diphenylamino)-4-(4-nitrophenyl)thiazol-5-yl)(naphthalen-1-yl)methanone 7h (IC50 = 0.07 ± 0.02 μM) showed equivalent COX-2 inhibitory potency as that of positive control etoricoxib (IC50 = 0.07 ± 0.01 μM) and an enhancedselectivity index of 115.14. Compound 7h exhibited 5-LOX IC50
众所周知,环氧合酶2(COX-2)和5-脂氧合酶(5-LOX)在炎症反应的发生和发展中起着至关重要的作用。因此,合成了噻唑和噻唑烷基药效团分子,以获得双重COX-2和5-LOX抑制活性。目标化合物的合成已通过新型绿色策略实现。这些分子的体外COX-1,COX-2和5-LOX评估显示出改善抗炎性的潜力。该系列(2-(二苯氨基)-4-(4-硝基苯基)噻唑-5-基)(萘-1-基)甲酮7h(IC 50 = 0.07±0.02μM)中最有希望的化合物显示出等效的COX-2抑制作用阳性对照依托昔布的效价(IC 50 = 0.07±0.01μM)和选择性指数115.14。化合物7h的5-LOX IC 50为0.29±0.09μM,参比药物齐留通的IC 50为0.15±0.05μM。7小时体内研究包括角叉菜胶诱导的爪水肿测定(抑制爪水肿63%),抗溃疡研究,生化测定,qRT-PCR分析和抗癌研究表明,本
A cascade synthesis of<i>S</i>-allyl benzoylcarbamothioates<i>via</i>Mumm-type rearrangement
作者:Anjali Dahiya、Wajid Ali、Tipu Alam、Bhisma K. Patel
DOI:10.1039/c8ob02293c
日期:——
A cascade synthesis ofS-allyl benzoylcarbamothioates has been achieved from Morita Baylis Hillman alcohols and aroyl isothiocyanatesviaMumm-type rearrangement.
Chronic pulmonary infection is a hallmark of lung disease in cystic fibrosis (CF). Infections dominated by non-fermentative Gram-negative bacilli are particularly difficult to treat and highlight an urgent need for the development of new class of agents to combat these infections. In this work, a small library comprising thiourea and guanidine derivatives with low molecular weight was designed; these derivatives were studied as antimicrobial agents against Gram-positive, Gram-negative, and a panel of drug-resistant clinical isolates recovered from patients with CF. One novel compound, a guanidine derivative bearing adamantane-1-carbonyl and 2-bromo-4,6-difluouro-phenyl substituents (H-BDF), showed potent bactericidal activity against the strains tested, at levels generally higher than those exhibited by tobramycin, ceftazimide and meropenem. The role that different substituents exert in the antimicrobial activity has been determined, highlighting the importance of the halo-phenyl group in the guanidine moiety. The new compound displays low levels of cytotoxicity against THP-1 and A549 cells with a selective index (SI) > 8 (patent application PCT/IB2017/054870, August 2017). Taken together, our results indicate that H-BDF can be considered as a promising antimicrobial agent.
Identification of acylthiourea derivatives as potent Plk1 PBD inhibitors
作者:Taikangxiang Yun、Tan Qin、Ying Liu、Luhua Lai
DOI:10.1016/j.ejmech.2016.08.043
日期:2016.11
Thiourea derivatives have drawn much attention for their latent capacities of biological activities. In this study, we designed acylthiourea compounds as polo-like kinase 1 (Plk1) polo-box domain (PBD) inhibitors. A series of acylthiourea derivatives without pan assay interference structure (PAINS) were synthesized. Four compounds with halogen substituents exhibited binding affinities to Plk1 PBD in