3694-46-0Relevant academic research and scientific papers
Application of sulfur-containing isocyanate compounds in growth inhibition of blue-green algae
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Paragraph 0042-0048; 0059-0063, (2020/04/29)
The invention relates to the application of sulfur-containing isocyanate compounds in the growth inhibition of blue-green algae. The compounds have structures as shown in a general formula I and a general formula II. In the general formula I, R1 represents a methyl group, a phenethyl group, a phenyl group, 4-methylpyridine or 3-methylpyridine. In the general formula II, M represents a carbonyl group, a methylene group and a methylene phenyl group; R3 represents hydrogen or chlorine; R4 represents oxygen, hydrogen, fluorine or chlorine; R5 represents oxygen, hydrogen, chlorine, a methyl group,fluorine, a benzene ring, bromine or a trifluoromethyl group; when R4 and R5 are oxygen, R4 and R5 are cyclized to form 1,3-dioxocyclopentene; R6 represents hydrogen, fluorine, bromine, a trifluoromethyl group, a methyl group and chlorine; and R7 represents hydrogen, a trifluoromethyl group, chlorine and bromine. The sulfur-containing isocyanate compounds with the structures as shown in the general formulas I and II provided by the invention have relatively good inhibition effect on blue-green algae, and can be used as an effective component of a blue-green algae algicide.
Synthesis and cytotoxic evaluation of quinazolin-4(3H)-one derivatives bearing thiocarbamate, thiourea or N-methyldithiocarbamate side Chains
Cao, Sheng-Li,Xu, Hong,Wang, Yao,Liao, Ji,Zhang, Jing-Jing,Li, Zhong-Feng,Guo, Yan-Wen,Li, Xiao-Rong,Cui, Xue-Mei,Xu, Xingzhi
experimental part, p. 163 - 173 (2012/07/31)
We have previously found that the dithiocarbamate derivatives of quinazolin-4(3H)-one could act as cytotoxic agents against a panel of human tumor cell lines. To investigate the contribution of dithiocarbamate moiety to the cytotoxic activity, three series of novel quinazolin-4(3H)-one derivatives bearing thiocarbamate, thiourea or Nmethyldithiocarbamate side chains were synthesized and tested for their cytotoxic activity against human cancer cell lines A549, MCF-7, HeLa, HT29 and HCT-116 by MTT assay. The results showed that transformation of the dithiocarbamate moiety in lead compound I to thiocarbamate or thiourea led to a decrease or loss of cytotoxic activity. Some N-alkylated analogs of lead compound II preferentially inhibited the proliferation of A549 cells, although their potencies were not improved in comparison with the unalkylated counterparts. The structure-activity relationship obtained in this research will be beneficial for further synthesis and discovery of effective cytotoxic agents.
Synthesis of thiophene-2-carboxamidines containing 2-aminothiazoles and their biological evaluation as urokinase inhibitors
Wilson, Kenneth J.,Illig, Carl R.,Subasinghe, Nalin,Hoffman, James B.,Jonathan Rudolph,Soll, Richard,Molloy, Christopher J.,Bone, Roger,Green, David,Randall, Troy,Zhang, Marie,Lewandowski, Frank A.,Zhou, Zhao,Sharp, Celia,Maguire, Diane,Grasberger, Bruce,DesJarlais, Renee L.,Spurlino, John
, p. 915 - 918 (2007/10/03)
The serine protease urokinase (uPa) has been implicated in the progression of both breast and prostate cancer. Utilizing structure based design, the synthesis of a series of substituted 4-[2-amino-1,3-thiazolyl]-thiophene-2-carboxamidines is described. Further optimization of this series by substitution of the terminal amine yielded urokinase inhibitors with excellent activities.
Synthesis and Octopaminergic Agonist Activity of 2-(Substituted benzylamino)-2-thiazolines
Hirashima, Akinori,Yoshii, Yutaka,Eto, Morifusa
, p. 1062 - 1065 (2007/10/02)
2-(Substituted benzylamino)-2-thiazolines (SBAT) were synthesized by a hydrochloric acid-catalyzed cyclization of the corresponding thioureas, using a reaction of 2-methylthio-2-thiazoline with substituted benzylamines or by alkylating 2-amino-2-thiazoline. 2-(Alkylthio)-2-thiazolines were obtained by alkylating 2-mercaptothiazoline.Most of the SBAT compounds activated adenylate cyclase in homogenates of cockroach ventral nerve cords; the effect of introducing substituents at the phenyl of the SBAT compounds on octopaminergic agonist activity was not significant. 2--2-thiazolines and 2-(alkylthio)-2-thiazolines were not significant octopaminergic agonists.Washing removed nearly all of the activity of one of the SBAT compounds, suggesting that the SBAT compounds bound reversibly to the octopaminergic receptor.
2,4-Bisimino-1,3-diazetidines: Iminophosphoranes, Carbodiimides and Related Betaines
Molina, Pedro,Alajarin, Mateo,Lopez-Leonardo, Carmen,Cano, Felix Hernandez,Llamas-Saiz, Antonio L.,et al.
, p. 199 - 210 (2007/10/02)
Iminophosphoranes 2 and 3 derived from 4-amino-6-methyl-3-methylthio-4,5-dihydrotriazin-5-one react with primary isocyanates or isothiocyanates to give the betaines 8 and 9, respectively; however, the reaction with isopropyl and tert-butyl isocyana
Photolysis of Vinyl Halides. Reaction of Photogenerated Vinyl Cations with Cyanate and Thiocyanate Ions
Kitamura, Tsugio,Kobayashi, Shinjiro,Taniguchi, Hiroshi
, p. 1801 - 1805 (2007/10/02)
The title reaction was conducted in a two-phase system of dichloromethane and water using a tetrabutylammonium halide as a phase-transfer catalyst.The reaction of the photogenerated arylvinyl cation with cyanate ion gave only isoquinolone derivatives, whereas the reaction with thiocyanate ion afforded products derived from S attack, vinyl thiocyanates, and products derived from N attack, vinyl isothiocyanates or thioisoquinolones.The ambident nature of thiocyanate ion is compared with the reaction of benzyl bromides.
Substitution Reaction of Organic Halide by Trimethylsilyl Isothiocyanate: Formation of Thiocyanate and Its Rearrangement to Isothiocyanate
Nishiyama, Kozaburo,Oba, Makoto
, p. 2692 - 2694 (2007/10/02)
The reaction of organic halide with trimethylsilyl isothiocyanate (TMSTC) gave thiocyanate 1 and its isomerized isothiocyanate 2.Details of the substitution and the isomerization reactions were examined.
