4-Hydrazinobenzoic acidA new method for the synthesis of β-N-(γ-l(+)-glutamyl)-4-carboxyphenylhydrazine, a precursor of agaritine, is presented. This compound was prepared from l-glutamine and 4-hydrazinobenz
The later structure was confirmed, characterized, and evaluated in our previous paper [4]. The free base of 4-hydrazinobenzoic acid (1) was used as the starting material to produce the targets 2–11 and 13 (Scheme 1). The reaction of 1 with several Conclusions A series of 4-hydrazino...
Bioorganometallic derivatives of 4-hydrazino-benzenesulphonamide as carbonic anhydrase inhibitors: synthesis, characterisation and biological evaluation Jeremie Brichet, Rodrigo Arancibia, Emanuela Berrino & Claudiu T. Supuran Pages 622-628 | Received 28 Dec 2019, Accepted 27 Jan 2020, Published online: ...
ChemInform Abstract: Reactions with 4‐(Cyanoacetyl)phenazone: Synthesis of Novel Thiazole, Hydrazinopyrazole and Pyrazolo(5,1‐c)(1.2.4)triazine Derivatives.1,2,3‐ and 1,2,4‐triazine derivativesCyanoacetyl)phenazone (I) reacts with mercaptoacetic acid (II) to give the hydroxythiazole (III)...
B. As a result, compound23aproved to be one of the most effective inhibitors (along with the other six compounds that do not contain a heterocyclic nucleus in their structure), which at concentration of 25 mg/ml, reduced the minimum inhibitory concentration of ciprofloxacin by a factor of 4...
ChemInform Abstract: Antihypertensive Thiadiazoles. Part 1. Synthesis of Some 2-Aryl-5-hydrazino-1,3,4-thiadiazoles with Vasodilator Activity.thiadiazole derivativesring closure reactionsAs shown in the reaction scheme, the 2-amino-5-arylthiadiazoles (II) are synthesized by three different methods....
4-dichloro-2-butene 1 with various amine com- pounds 2, amino alcohols, and amino acid esters without solvent under MW irradiation on silica gel for 2–4 min, and N-substituted homochiral pyrrole derivatives 3 (11 examples) were obtained in good yield (49–69%) instead of the expected ...
4-phenylene-diamines, and their thio analogs were obtained by the condensation of N,N′-bis-(hydrazinocarbonylethyl)-1,4-phenylenediamine with 2,4-pentanedione, 2,5-hexanedione, phenyl isocyanates, or phenyl isothiocyanates (with subsequent treatment of the obtained semicarbazides with alkali), ...
A multistep synthesis was established for the preparation of a new vanillic acid-1, 2, 4-1triazole-3-thiol conjugate (4). Finally, several aromatized aldehydes reacted with compound (4) to produce Schiff bases derivatives (5–11). The purpose of this research is to prepare new vanillic ...
ChemInform Abstract: Synthesis and Reactions of 4-(Arylhydrazino)coumarins (III).benzopyran derivativesring closure reactionspyrazole derivativesNo abstract is available for this article.doi:10.1002/chin.201033135I. StrakovaA. StrakovsM. Petrova