New cyclometallated platinum(II) compounds with thiosemicarbazones: crystal and molecular structure of [Pt{4-MeC6H3C(Me)NNC(S)NH2}(PPh3)]
作者:Digna Vázquez-Garcı́a、Alberto Fernández、Jesús J Fernández、Margarita López-Torres、Antonio Suárez、Juan M Ortigueira、José M Vila、Harry Adams
DOI:10.1016/s0022-328x(99)00624-5
日期:2000.2
Treatment of the thiosemicarbazones 3-CH3(CH2)5OC6H4C(Me)NN(H)C(S)NH2 (a), 4-MeC6H4C(Me)NN(H)C(S)NH2 (b), C6H5C(Et)NN(H)C(S)NH2 (c), C6H5CCH3(CH2)10}NN(H)C(S)NH2 (d) and 4-MeC6H4C(Me)NN(H)C(S)NHMe (e) with K2[PtCl4] gives tetranuclear platinum(II) compounds 1a–1e with deprotonation of the NH group and with the ligand acting as a terdentate [C,N,S] moiety. Reaction of 1a–1e with PPh3 and
An Efficient Synthesis of Some New Hydrazone Derivatives Containing 1,2,3-Triazole and Thiazole
作者:Keyume Ablajan、Wang Liju、Anagu Tuoheti
DOI:10.2174/157017861010131126115715
日期:2013.11
The syntheses of hydrazonederivatives with thiazole and triazole rings were described. The target compounds 7a-j and 8a-g with the hydrazine based structure containing thiazole and triazole rings were synthesized respectively through the reactions of α-bromomethylpyrazole ketone 3 with arylethanone thiosemicarbazones 5a-j and the reactions of pyrazol thiosemicarbazone 4 with α-bromomethyl aryl ketones
描述了derivatives衍生物与噻唑和三唑环的合成。分别通过αα-溴甲基吡唑酮3与芳酮硫代半氨基咔唑酮5a-j的反应和吡唑硫代半碳a酮4与α-β的反应,分别合成具有噻唑和三唑环的肼基结构的目标化合物7a-j和8a-g。在没有催化剂的回流条件下,溴甲基芳基酮6a-g。此外,使用一锅法开发了一种生态友好的合成化合物8a-g的简便方法。通过使用H 2 O 2诱导的具有氧化损伤的PC 12细胞,测试了目标化合物的初步生物活性。
Ketonethiosemicarbazones: Structure–activity relationships for their melanogenesis inhibition
作者:Pillaiyar Thanigaimalai、Ki-Cheul Lee、Vinay K. Sharma、Eunmiri Roh、Youngsoo Kim、Sang-Hun Jung
DOI:10.1016/j.bmcl.2011.04.146
日期:2011.6
A series of 2-(1-phenylalkylidene)hydrazinecarbothioamides 2, 2-(1-phenylalkyl)hydrazinecarbothioamides 3, 2-(3,4-dihydronaphthalen-1(2H)-ylidene)hydrazinecarbothioamide (4), and 2-(1-(thiophen-2-yl)ethylidene)hydrazinecarbothioamide (5) were synthesized for their melanogenesis inhibition in melanoma B16 cells. The SAR of these ketonethiosemicarbazones revealed that the benzylidene hydrogen in ald
Synthesis of Some Novel 1,4-Phenylene-<i>bis</i>-thiazolyl Derivatives and Their Anti-hypertensive α-blocking Activity Screening
作者:Fathy M. Abdelrazek、Sobhi M. Gomha、Peter Metz、Mohamed M. Abdalla
DOI:10.1002/jhet.2633
日期:2017.1
A series of novel 1,4‐phenylene‐bis‐thiazolyl derivatives were synthesized and evaluated for their anti‐hypertensive activities as α‐blocking agents and some of them showed promising activities.
Microwave‐assisted synthesis and biological evaluation of new thiazolylhydrazone derivatives as tyrosinase inhibitors and antioxidants
作者:Yu Zhang、Xi Fu、Yangting Yan、Jinbing Liu
DOI:10.1002/jhet.3760
日期:2020.3
In this work, we have synthesized a series of 2‐thiazolylhydrazone derivatives (1–27) and investigated their biological activities as tyrosinase inhibitors and antioxidants. Some compounds showed potent tyrosinase inhibitory activities and 4‐(2‐(2‐(1‐(4‐Aminophenyl)ethylidene)‐hydrazinyl)thiazol‐4‐yl) phenol (26) showed more potent inhibitory effect than the standard tyrosinase inhibitor kojic acid