- Design, synthesis and biological evaluation of 4-aryl-5-aminoalkyl-thiazole-2-amines derivatives as ROCK II inhibitors
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A series of 4-aryl-5-aminoalkyl-thiazole-2-amines were designed and synthesized, and their inhibitory activity on ROCK II was screened by enzyme-linked immunosorbent assay (ELISA). The results showed that 4-aryl-5-aminomethyl-thiazole-2-amines derivatives had certain ROCK II inhibitory activities. Compound 10l showed ROCK II inhibitory activity with IC50 value of 20 nM.
- Fan, Meixia,Ma, Shuchao,Ouyang, Ben,Qi, Junhui,Wang, Linan,Yao, Lei
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- HETEROCYCLIC COMPOUNDS FOR MODULATING NR2F6
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The present disclosure relates to compounds capable of modulating the activity of NR2F6. The compounds of the disclosure may be used in methods for the prevention and/or the treatment of diseases and disorders associated with modulating NR2F6 activity.
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Paragraph 00477
(2021/09/04)
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- Sodium alginate: Biopolymeric catalyst for the synthesis of 2-amino-4-arylthiazole derivatives in aqueous medium
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Regarded as a naturally occurring macromolecule and without any post-modification, sodium alginate which possesses a granular form was found to be an efficient and recoverable bifunctional heterogeneous organocatalyst for the synthesis of 2-amino-4-arylthiazole derivatives was carried out by the reaction of substituted phenyl acetylene and thiourea in an eco-friendly condition in the presence of TBBDA (tetrabromobenzene-1,3-disulfonamide (tetrabromobenzene-1,3-disulfonamide). Mild reaction conditions, simple reaction procedure, easy purification, high yields of products, eco-friendly catalyst usage and convenient reusability are the highlighted points of this protocol.
- Gorji, Samareh,Ghorbani-Vaghei, Ramin,Alavinia, Sedigheh
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- Aiding the versatility of simple ammonium ionic liquids by the synthesis of bioactive 1,2,3,4-tetrahydropyrimidine, 2-aminothiazole and quinazolinone derivatives
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Simple ammonium ionic liquids [ILs] are efficient, green, environmentally friendly catalysts in promoting the Biginelli condensation reaction, Hantzsch reaction and Niementowski reaction to afford 1,2,3,4-tetrahydropyrimidine, 2-aminothiazole and quinazolinone derivatives respectively by eliminating the need for harmful volatile organic solvents. These [ILs] are air and water stable, easy to prepare and cost-effective. The effects of the anions and cations present in [IL] on reactions were investigated. The results clearly indicated that the Biginelli condensation reaction, Hantzsch reaction and Niementowski reaction were heavily influenced by the acidity of [IL], and among various ammonium ionic liquids, [Et3NH][HSO4] showed the best catalytic activity. Furthermore, [IL] could be easily separated and reused with a slight loss of its activity. This technique provided a good alternative way for the industrial synthesis of 1,2,3,4-tetrahydropyrimidinones, 2-aminothiazoles and quinazolinones. The present processes are eco-friendly methods for the synthesis of these derivatives authenticated by several green parameters, namely,E-factor, process mass intensity, reaction mass efficiency, atom economy, and carbon efficiency.
- Kakati, Praachi,Singh, Preeti,Yadav, Priyanka,Awasthi, Satish Kumar
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p. 6724 - 6738
(2021/04/22)
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- Design, synthesis, and biological evaluation of urea-based ROCK2 inhibitors
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A series of urea-based ROCK2 inhibitors were design and synthesized. The inhibitory activity on ROCK2 was screened by enzyme-linked immunosorbent assay (ELISA). The study results showed that the urea derivatives exhibited certain ROCK2 inhibitory activity. The most potent compound 10p showed ROCK2 inhibitory activity with the IC50?value of 0.03?μM. A preliminary structure-activity relationship was then summarized. The molecular docking studies showed that further optimization needs to conduct to obtain more potent ROCK inhibitors.
- Wang, Linan,Qi, Junhui,Fan, Meixia,Yao, Lei
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p. 969 - 978
(2021/10/07)
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- MNPs@SiO2-Pr-AP: A new catalyst for the synthesis of 2-amino-4-aryl thiazole derivatives
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A simple and efficient synthesis of 2-amino-4-aryl thiazole derivatives was carried out through the reaction of substituted acetophenones and thiourea using three different types of catalytic systems including N,N,N′,N′-tetrabromobenzene-1,3-disulfonamide [TBBDA], poly(N,N′-dibromo-N-ethylbenzene-1,3-disulfonamide) [PBBS] and a combination of TBBDA and nano-magnetic catalyst supported with functionalized 4-amino-pyridine silica (MNPs@SiO2-Pr-AP). The results showed that the use of TBBDA along with the MNPs@SiO2-Pr-AP gains the highest yields of the products in the shortest reaction time.
- Ghorbani-Vaghei, Ramin,Alavinia, Sedigheh,Merati, Zohreh,Izadkhah, Vida
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- Method for performing driving synthesis of 4-alkyl or aryl-2-aminothiazole by visible light
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The invention relates to a method for performing driving synthesis of 4-alkyl or aryl-2-aminothiazole by visible light. The method comprises the following steps: adding an olefin azide compound, ammonium thiocyanate and copper acetate into a solvent acetonitrile separately, performing driving reaction by using visible light with wavelength of 450 to 460 nm at the temperature of 25 DEG C for 20 to36 hours to obtain reaction liquid, and spin-drying the reaction liquid to obtain concentrate; and performing silica-gel column chromatography on the concentrate to obtain the 4-alkyl or aryl-2-aminothiazole. The method is high in yield, mild in condition and low in environmental pollution.
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Paragraph 0093; 0094; 0095; 0096; 0097; 0098
(2018/04/02)
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- Visible-Light-Driven Synthesis of 4-Alkyl/Aryl-2-Aminothiazoles Promoted by in Situ Generated Copper Photocatalyst
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Room-temperature synthesis of 4-alkyl/aryl-2-aminothiazoles from vinyl azides and ammonium thiocyanate was accomplished with the aid of copper salts and blue LED irradiation. Mechanism investigation indicates that in situ-formed Cu(NCS)2- plays dual important roles in the reaction: (1) as the photocatalyst to activate vinyl azides, (2) as the Lewis acid catalyst to promote ring opening of 2H-azirines with thiocyanide. This process is distinguished by high yields, mild conditions, low catalyst loadings, and tolerating numerous alkyl- and aryl vinyl azides with an array of functional groups.
- Lei, Wen-Long,Wang, Tao,Feng, Kai-Wen,Wu, Li-Zhu,Liu, Qiang
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p. 7941 - 7945
(2017/11/10)
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- A 2-amino-thiazole compounds (by machine translation)
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The present invention relates to the technical field of pharmaceutical chemistry, particularly relates to a 2-amino thiazole compound or its pharmaceutically acceptable salts, its preparation method, and pharmaceutical compositions containing such compounds and its application in the preparation of antineoplastic. (by machine translation)
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Paragraph 0733
(2016/10/08)
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- BENZIMIDAZOLE DERIVATIVES AS SELECTIVE PROTEINE KINASE INHIBITORS
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The present invention relates to compounds of formula (I) or pharmaceutically acceptable salts thereof. Wherein n, R1, R2, R3, R4, R5, A, Q and X are as defined in the description. These compounds selectively modulate, regulate, and/or inhibit signal transduction mediated by certain native and/or mutant proteine kinases implicated in a variety of human and animal diseases such as cell proliferative, metabolic, allergic, and degenerative disorders. More particularly, these compounds are potent and selective native and/or mutant c-kit inhibitors.
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Page/Page column 44-45
(2015/01/07)
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- Synthesis and biological evaluation of 2-aminothiazole derivatives as antimycobacterial and antiplasmodial agents
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A series of compounds derived from the 2-amino-4-(2-pyridyl) thiazole scaffold was synthesized and tested for in vitro antimycobacterial activity against the Mycobacterium tuberculosis H37Rv strain, antiplasmodial activity against the chloroquine sensitive NF54 Plasmodium falciparum strain and cytotoxicity on a mammalian cell line. Optimal antimycobacterial activity was found with compounds with a 2-pyridyl ring at position 4 of the thiazole scaffold, a substituted phenyl ring at the 2-amino position, and an amide linker between the scaffold and the substituted phenyl. The antiplasmodial activity was best with compounds that had the phenyl ring substituted with hydrophobic electron withdrawing groups.
- Mjambili, Faith,Njoroge, Mathew,Naran, Krupa,De Kock, Carmen,Smith, Peter J.,Mizrahi, Valerie,Warner, Digby,Chibale, Kelly
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p. 560 - 564
(2014/01/23)
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- HETEROARYL SUBSTITUTED PYRIDYL COMPOUNDS USEFUL AS KINASE MODULATORS
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Compounds having the following formula (I) or a stereoisomer or a pharmaceutically-acceptable salt thereof, wherein R2 is a monocyclic heteroaryl group, and R1, R3, R4, R5 and R6 are as defined herein, are useful as kinase modulators, including IRAK-4 inhibition.
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- BIARYLAMIDE INHIBITORS OF LEUKOTRIENE PRODUCTION
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The present invention relates to compounds of formula (I): and pharmaceutically acceptable salts thereof, wherein A, B, C, R1a, R1b, R2, R3, R4a and R4b are as defined herein. The invention also relates to pharmaceutical compositions comprising these compounds, methods of using these compounds in the treatment of various diseases and disorders, processes for preparing these compounds and intermediates useful in these processes.
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Page/Page column 93-94
(2012/06/30)
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- PIPERAZINE COMPOUNDS FOR THE INHIBITION OF HAEMATOPOIETIC PROSTAGLANDIN D SYNTHASE
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The present invention relates to compounds of general formula (I): wherein A, Y, X, n and B are as defined herein; and their use in the treatment and prevention of metabolic disorders, inflammatory conditions, allergic conditions, fever, pain including allodynia and nociception, eating disorders, cachexia, brain injuries, cancer of the genitals, sleep apnoea, cardiovascular disease, flush effect associated with nicotinic acid and related compounds or for the promotion of wound healing. Certain compounds of general formula (I) are new and the invention also relates to these compounds and to their use in medicine.
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Page/Page column 86
(2008/12/04)
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- UREA DERIVATIVES METHODS FOR THEIR MANUFACTURE AND USES THEREOF
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The present invention provides compounds of formula (I): in which R 1, R'1, R2, R'2, R3, Y and G have the meanings given in the description, to a process for their preparation, their application by way of medicaments, and to pharmaceutical compositions containing them.
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Page/Page column 49-50
(2010/11/24)
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- INHIBITORS OF HISTONE DEACETYLASE
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The invention relates to a series of compounds useful for inhibiting histone deacetylase (HDAC) enzymatic activity. The invention also provides a method for inhibiting histone descetylase in a cell using said compounds as well as a method for treating cell proliferative diseases and conditions using said HDAC inhibitors. Further, the invention provides pharmaceutical compositions comprising the HDAC inhibiting compounds and a pharmaceutically acceptable carrier.
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Page/Page column 121; 123
(2010/02/14)
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- PPAR-gamma modulator
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A compound of the following formula or a pharmacologically acceptable salt thereof: 1 wherein A represents a phenyl group or the like, B represents an aryl group or the like, X represents an oxygen atom or the like, and n represents 0 or 1. The compound is a PPAR γ modulator which is a therapeutic agent for retrograde osteoporosis in which excessive differentiation of adipocytes is inhibited and formation and differentiation of osteoblasts from stem cells is facilitated, and for diabetes mellitus without characteristics such as excessive adipogenesis, liver dysfunction, vascular disorders, heart diseases and the like.
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- Thiazole derivatives
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The invention relates to thiazole derivatives with the general formula I STR1 wherein R 1 is halogen, CF 3, CN, NO 2, OH or C 1 -C 6 alkoxy;R 2 is hydrogen, C 1 -C 6 alkyl, C 1 -C 6 alkoxy, aryl, C 6 -C 13 aralkyl, an unsubstituted amino group, a substituted amino group, or an amino group which is part of a 5- or 6-membered ring;R 3 is C 1 -C 6 hydrocarbon, C 6 -C 13 aralkyl, C 2 -C 7 alkoxyalkyl or C 1 -C 13 acyl; and their pharmaceutically acceptable acid addition salts.These new compounds have α 2 -antagonist activity without dopamine agonist activity and as such are specifically useful for the treatment of depression and other related illnesses, e.g. for treating patients with anxiety disorders and cognitive disturbances.
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