Results 31 to 40 of about 873 (170)

Synthesis and antibacterial activity of new (2,4-dioxothiazolidin-5-yl/ylidene)acetic acid derivatives with thiazolidine-2,4-dione, rhodanine and 2-thiohydantoin moieties

Saudi Pharmaceutical Journal, 2018
A series of new (2,4-dioxothiazolidin-5-yl/ylidene)acetic acid derivatives with thiazolidine-2,4-dione, rhodanine and 2-thiohydantoin moiety (28–65) were synthesized by the reaction of (2,4-dioxothiazolidin-5-yl/ylidene)acetic acid chlorides with 5 ...
Nazar Trotsko, Urszula Kosikowska, Agata Paneth, Monika Wujec, Anna Malm   +4 more
doaj   +1 more source

Synthetical Application of Alkyl 2-isothiocyanatocarboxylates. A Simple Synthesis of 5-Substituted-3-amino-2-thioxo-4-imidazolidinones (3-Amino-2-thiohydantoins)

Molecules, 1999
The title 3-amino-2-thiohydantoins 3 has been prepared in very good yields by the reaction of alkyl isothiocynatocarboxylates 1 with hydrazine hydrate.The synthesis of starting isothiocyanates as well as spectral data of 3-aminothiohydantoins and alkyl ...
Martin Kovac, Vladimir Oremus, Lubomir Floch   +2 more
doaj   +1 more source

Heterocyclic systems containing S/N regioselective nucleophilic competition: Facile synthesis, antitubercular and antimicrobial activity of thiohydantoins and iminothiazolidinones containing the benzo [PDF]

Journal of the Serbian Chemical Society, 2005
The required compounds N-aryl-N'-(3-chloro-2-benzo[b]thenoyl)-thioureas 1a-k were prepared by condensing 3-chloro-2-benzo[b]thenoyl chloride with different arylamines using ammonium thiocyanate, which in turn when treated with chloroacetic acid, yielded ...
Kachhadia V.V., Patel M.R., Joshi H.S.
doaj   +1 more source

A New Polymorph of 2-Thiohydantoin

X-ray Structure Analysis Online, 2009
A new polymorphic crystal of the title compound, C3H4N2OS, belongs to space group P1 with cell dimensions of a = 4.0520(9)A, b = 6.550(1)A, c = 9.170(2)A, α = 100.148(4)°, β = 100.814(4)°, γ = 96.831(4)°, R1 = 0.069. Neighboring molecules are connected to form cyclic dimers via two types of hydrogen bonds, one between the thioamide groups and the other
Ogawa, Toshikazu, Okumura, Hisako, Honda, Mitsunori, Suda, Mitsuhiro, Fujinami, Shuhei, Kuwae, Akio, Hanai, Kazuhiko, Kunimoto, Ko-Ki   +7 more
openaire   +2 more sources

Effect of Microwave Irradiation on the Condensation of 6-Substituted 3-Formylchromones with Some Five-membered Heterocyclic Compounds

Molecules, 2000
Different types of 3-substituted 4H-4-oxobenzopyrans were prepared by microwave irradiation as well as by a classical method. The beneficial effect of microwave irradiation on the aldol condensation of 3-formylchromones with 2-imino-1-methylimidazolidine-
Nada Pronayova, Tibor Liptay, Dusan Loos, Renata Gasparova, Margita Lacova   +4 more
doaj   +1 more source

NMR and MS data for novel bioactive constituents from Pugionium cornutum L. Gaertn

Data in Brief, 2020
The data presented in this article are associated with the research article entitled “Bioactive Constituents Study of Pugionium cornutum L. Gaertn on Intestinal Motility” [1].
Wenzhong Shi, Jingya Ruan, Yuanqiang Guo, Zhijuan Ding, Jiejing Yan, Lu Qu, Chang Zheng, Yi Zhang, Tao Wang   +8 more
doaj   +1 more source

Chemo- and Regioselective 1,3-Dipolar Cycloaddition of Nitrile Imines to 5-Arylmethylene-2-methylthiohydantoins

Organics
1,3-Dipolar cycloaddition reactions of nitrile imines are a powerful tool for the construction of spirocyclic frameworks, yet controlling chemoselectivity remains challenging when dipolarophiles contain multiple reactive sites.
Maria E. Filkina, Lev A. Lintsov, Victor A. Tafeenko, Maxim E. Kukushkin, Elena K. Beloglazkina   +4 more
doaj   +1 more source

HYDANTOINS: THE HISTORY OF 2-THIOHYDANTOIN. XXII. [PDF]

Journal of the American Chemical Society, 1913
n ...
openaire   +2 more sources

Acrylamide Exposure, Biological Aging Acceleration, With Ankle‐Brachial Index and Peripheral Artery Disease: Exploring Association, Interaction, and Underlying Mechanism

Food Frontiers, Volume 7, Issue 4, July 2026.
We provided the first evidence that exposure of general adults to ACR was related to ABI decrement and PAD odds increment, which might be partly associated with accelerated biological aging. Lipid and atherosclerosis pathway may be suggestively implicated in the mechanism underlying these associations.
Feifei Wang, Zhiying Huo, Jiahao Song, Shuhui Wan, Yongfang Zhang, Le Hong, Qing Liu, Yani Xiong, Pengfei Chen, Yanjun Guo, Weihong Chen, Bin Wang   +11 more
wiley   +1 more source

Dietary Ergothioneine as a Novel Anti‐Aging Nutraceutical: Mechanisms, Bioavailability, and Future Perspectives

Food Frontiers, Volume 7, Issue 3, May 2026.
ABSTRACT Ergothioneine (EGT), a natural thiol derivative, has gained attention as a geroprotective nutraceutical. Preclinical research shows EGT scavenges free radicals, maintains mitochondrial integrity, slows telomere erosion, and regulates proteostasis via autophagy and senescent cell clearance.
Tian‐Tian Tian, Liang Chen, Zhen‐Zhen Dong, Chao Yang   +3 more
wiley   +1 more source