Synthesis of Thiazolo[2,3‐c]‐s‐triazoles Using Poly[(4‐diacetoxyiodo)styrene]
摘要:
Arenecarbaldehyde-4-arylthiazol-2-ylhydrazones underwent ring closure with poly[(4-diacetoxyiodo) styrene] (PSDIB) to 3,5-diarylthiazolo[2,3-c]-s-triazoles in dichloromethane.
Synthesis and evaluation of the antioxidant and anti-tyrosinase activities of thiazolyl hydrazone derivatives and their application in the anti-browning of fresh-cut potato
highest radicalscavenging activity among the prepared molecules. The inhibitionkinetics study indicated that 6 is a non-competitive inhibitor while 30 inhibits tyrosinase competitively. The anti-browning assay of fresh-cut potato slices revealed that 6 and 30 are potent anti-browning agents with a capacity as high as kojic acid. The mechanisms of freeradicalscavenging and tyrosinase inhibition have
酪氨酸酶是黑色素生物合成中的关键酶,黑色素是导致食物褐变和许多皮肤病的原因。为了开发具有双重抗氧化和抗酪氨酸酶能力的新型抗褐变剂,合成了一系列30种噻唑腙衍生物。在制备的分子中,发现6和30是最有效的酪氨酸酶抑制剂,其 IC 50值与曲酸相当。有趣的是,6在制备的分子中也具有最高的自由基清除活性。抑制动力学研究表明6是一种非竞争性抑制剂,而30竞争性抑制酪氨酸酶。鲜切马铃薯片的抗褐变试验表明,6和30是有效的抗褐变剂,其能力与曲酸一样高。自由基清除和酪氨酸酶抑制的机制已在计算机中使用计算动力学、分子对接和分子动力学模拟进行了全面研究。
Synthesis of Thiazolo[2,3‐c]‐s‐triazoles Using Poly[(4‐diacetoxyiodo)styrene]
作者:Shi‐juan Liu、Ji‐zhen Zhang、Guan‐rong Tian、Ping Liu
DOI:10.1081/scc-200063923
日期:2005.7
Arenecarbaldehyde-4-arylthiazol-2-ylhydrazones underwent ring closure with poly[(4-diacetoxyiodo) styrene] (PSDIB) to 3,5-diarylthiazolo[2,3-c]-s-triazoles in dichloromethane.
2,4- and 2,5-Disubstituted Arylthiazoles: Rapid Synthesis by C-H Coupling and Biological Evaluation
作者:Lilia Lohrey、Takahiro N. Uehara、Satoshi Tani、Junichiro Yamaguchi、Hans-Ulrich Humpf、Kenichiro Itami
DOI:10.1002/ejoc.201402129
日期:2014.6
bacteria is an urgent subject. Herein, we report a step-economical and diversity-oriented synthesis of a series of 2-arylidenehydrazinyl-4-arylthiazole and 2-arylidenehydrazinyl-5-arylthiazole analogues that utilizes C–Hcoupling methodologies. A library of 54 new congeners were synthesized and tested for their biological potential. Moreover, new knowledge regarding the structure–activity relationships (SARs)