19745-93-8

Upstream product

• 70-23-5 ethyl Bromopyruvate 
• 651042-69-2 ethyl 4-(2-amino-1,3-thiazol-4-yl)benzoate 
• 79-04-9 chloroacetyl chloride 
• 5398-36-7 2-aminothiazole-4-carboxylate 

Downstream Products

• 1418010-91-9 ethyl 2-[2-(1-(4-chlorophenylamino)-4,5-dimethyl-1H-imidazol-2-ylthio)acetamido]thiazole-4-carboxylate 
• 1418010-83-9 ethyl 2-[2-(1-(4-methoxyphenylamino)-4,5-dimethyl-1H-imidazol-2-ylthio)acetamido]thiazole-4-carboxylate 
• 1418010-75-9 ethyl 2-[2-(4,5-dimethyl-1-(p-tolylamino)-1H-imidazol-2-ylthio)acetamido]thiazole-4-carboxylate 
• 1418010-67-9 ethyl 2-[2-(4,5-dimethyl-1-(phenylamino)-1H-imidazol-2-ylthio)acetamido]thiazole-4-carboxylate 

Relevant academic research and scientific papers

Synthesis and biological screening of diethyl [N-(thiazol-2-yl)carbamoyl]methylphosphonates

A three-step synthesis, involving condensation of bromomethyl aryl ketones with urea to afford 2- aminothiazoles, their chloroacetylation and subsequent solvent-free Arbuzov phosphonation has afforded a series of novel diethyl [N-(thiazol-2-yl)carbamoyl]methylphosphonates 3a-3f in good overall yields; the 4- carboxythiazole analogue 3g was obtained by selective hydrolysis of the corresponding ethyl ester 3f. The phosphonate esters exhibited significant anti-cancer activity (nM - low μM IC50 values) against SH-SY5Y cells and, in one case, 7.6 μM MIC90 anti-TB activity against the virulent M. tuberculosis H37Rv strain; the chloroacetamido precursors all exhibited some antimalarial (PfLDH) activity, three with IC50 values in the range 1.0 - 8.9 μM.

Design, synthesis, kinetic, molecular dynamics, and hypoglycemic effect characterization of new and potential selective benzimidazole derivatives as Protein Tyrosine Phosphatase 1B inhibitors

Protein-tyrosine phosphatase 1B (PTP1B) is a negative regulator of insulin signaling pathway and has been validated as a therapeutic target for type 2 diabetes. A wide variety of scaffolds have been included in the structure of PTP1B inhibitors, one of them is the benzimidazole nucleus. Here, we report the design and synthesis of a new series of di- and tri- substituted benzimidazole derivatives including their kinetic and structural characterization as PTP1B inhibitors and hypoglycemic activity. Results show that compounds 43, 44, 45, and 46 are complete mixed type inhibitors with a Ki of 12.6 μM for the most potent (46). SAR type analysis indicates that a chloro substituent at position 6(5), a β-naphthyloxy at position 5(6), and a p-benzoic acid attached to the linker 2-thioacetamido at position 2 of the benzimidazole nucleus, was the best combination for PTP1B inhibition and hypoglycemic activity. In addition, molecular dynamics studies suggest that these compounds could be potential selective inhibitors from other PTPs such as its closest homologous TCPTP, SHP-1, SHP-2 and CDC25B. Therefore, the compounds reported here are good hits that provide structural, kinetic, and biological information that can be used to develop novel and selective PTP1B inhibitors based on benzimidazole scaffold.

Synthesis and antimicrobial activity evaluation of new dithiocarbamate derivatives bearing thiazole/benzothiazole rings

The synthesis of 2-(substituted phenyl)-2-oxoethyl 4-(pyrimidin-2-yl)piperazin-1-carbodithiodate (A1-A24) derivatives and 2-(4-substituted thiazol-2-ylamino)-2-oxoethyl 4-(pyrimidin-2-yl)piperazin-1-carbodithiodate (B1-B14) derivatives was undertaken starting from the potassium salt of 4-(2-pyrimidinyl)piperazine dithiocarbamate. The structures of the obtained compounds were elucidated by1H NMR,13C NMR, MS spectral data, and elemental analysis. The antimicrobial activity of the thirty eight newly synthesized compounds were tested against 12 microorganism strains using the microdilution technique. Compounds 2-(4-ethoxycarbonylthiazol-2-ylamino)-2-oxoethyl 4-(pyrimidin-2-yl)piperazin-1-carbodithiodate (B12), 2-(3-fluorophenyl)-2-oxoethyl 4-(pyrimidin-2-yl)piperazin-1-carbodithiodate (A18) and 2-(3,4-difluorophenyl)-2-oxoethyl 4-(pyrimidin-2-yl)piperazin-1-carbodithiodate (A21) were determined to possess high antimicrobial activity.

Synthesis and in vitro kinetic evaluation of N-thiazolylacetamido monoquaternary pyridinium oximes as reactivators of sarin, O-ethylsarin and VX inhibited human acetylcholinesterase (hAChE)

Presently available medications for treatment of organiphosphorus poisoning are not sufficiently effective due to various pharmacological and toxicological reasons. In this regard, herein we report the synthesis of a series of N-thiazolylacetamide monoquaternary pyridinium oximes and its analogs (1a-1b to 6a-6b) with diversely substituted thiazole ring and evaluation of their in vitro reactivation efficacies against nerve agent (sarin, O-ethylsarin and VX) inhibited human erythrocyte acetylcholinesterase (hAChE). Reactivation kinetics was performed to determine dissociation constant (KD), reactivity rate constant (kr) and the second order rate constant (kr2) for all the compounds and compared their efficacies with commercial antidotes viz. 2-PAM and obidoxime. All the newly synthesized oximes were evaluated for their physicochemical parameters (pKa) and correlated with their respective reactivation efficacies to assess the capability of the oxime reactivator. Three of these novel compounds showed promising reactivation efficacies toward OP inhibited hAChE. Molecular docking studies were performed in order to correlate the reactivation efficacies with their interactions in the active site of the AChE.

Synthesis of 2-[4,5-dimethyl-1-(phenylamino)-1H-imidazol-2-ylthio]-N- (thiazole-2-yl)acetamide derivatives and their anticancer activities

In this work, 2-(4,5-dimethyl-1-(phenylamino)-1H-imidazol-2-ylthio)-N- (thiazol-2-yl) acetamide derivatives were synthesized by reacting 4,5-dimethyl-1-(phenylamino)-1H-imidazole-2(3H)-thione derivatives with some 2-chloro-N-(thiazol-2-yl)acetamide compou

Synthesis and antimicrobial activity of 4-phenyl/cyclohexyl-5-(1- phenoxyethyl)-3-[N-(2-thiazolyl)acetamido]thio-4H-1,2,4-triazole derivatives

The increasing clinical importance of drug-resistant fungal and bacterial pathogens has lent additional urgency to microbiological research and new antimicrobial compound development. For this purpose, new thiazole derivatives of triazoles were synthesize

2,4-Disubstituted thiazoles, Part III: Synthesis and antitumor activity of ethyl 2-substituted-aminothiazole-4-carboxylate analogs

The synthesis of several new ethyl 2-substituted-aminothiazole-4- carboxylate analogs is described. The prepared compounds were tested for their in vitro antitumor activity against 60 human tumor cell lines by the National Cancer Institute (NCI) and showed potential anticancer activity. Ethyl 2-[3-(diethylamino)propanamido]-thiazole-4-carboxylate (14) exhibited remarkable activity against RPMI-8226 leukemia cell line with GI50 value of 0.08 μM, and a broad spectrum activity against all the tumor cell lines used with GI50 (MG-MID) value of 38.3 μM. The detailed synthesis and antitumor screening data are reported.