58327-70-1Relevant academic research and scientific papers
3-Azidothieno[2,3-b]pyridine Thermolysis as a Route to Novel peri-Annelated Heterocyclic Derivatives - Benzo(furo)thieno[2,3,4-ij]-2,7-naphthyridines
Vasilin, Vladimir K.,Kanishcheva, Eugeniya A.,Stroganova, Tatyana A.,Krapivin, Gennady D.
, p. 755 - 758 (2015)
Synthesis of novel benzo(furo)thieno[2,3,4-ij]-2,7-naphthyridines based on alkyl(aryl) 3-azido-4-aryl(furyl)thieno[2,3-b]pyridine-2-carboxylate thermolysis is elaborated. The structures of the synthesized materials were assigned by their NMR, IR, and MS analysis.
3-Amino(azido)-4,6-aryl(hetaryl)thieno[2,3-b]pyridines and benzo(furo,thieno)[c]thieno[2,3,4-i,j]-2,7-naphthyridines on their basis: synthesis, spectral properties, and prediction of biological activity
Vasilin, Vladimir K.,Kanishcheva, Eugeniya A.,Stroganova, Tat’yana А.,Volynkin, Vitaly А.,Gizhinskaya, Anzhelika V.,Vassiliev, Pavel M.,Krapivin, Gennady D.
, p. 1078 - 1091 (2020)
[Figure not available: see fulltext.] 3-Azido-4,6-diarylthienopyridines obtained from the corresponding 3-amino derivatives are convenient precursors in the synthesis of the peri-annulated heterocyclic system, benzo(furo,thieno)[c]thieno[2,3,4-i,j]-2,7-naphthyridines. The spectral characteristics of the obtained compounds (IR, UV, NMR (1H, 13C, 1H–15N gHMBC) spectra, luminescence spectra, mass spectra) were studied. Computational prediction of potential biological action has been performed.
A simple and expedient method for the synthesis of ethyl 3-amino-4,6-diarylthieno[2,3-b]pyridine-2-carboxylate
Shah, Hetal C.,Shah, Vaishali H.,Desai, Nirmal D.
experimental part, p. 1349 - 1354 (2010/03/26)
(Chemical Equation Presented) 2-Chloro-4,6-diarylnicotinonitrile 1 was reacted with ethyl 2-mercaptoacetate 2 to furnish ethyl 2-(3-cyano-4,6- diarylpyridin-2-ylthio)acetate 3 as intermediates. These intermediates were cyclized by Thorpe-Zeigler cyclizati
Bicyclic heteroamatic compounds useful as LH agonists
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, (2008/06/13)
The invention relates to a bicyclic heteroaromatic derivative compound according to general formula (I), or a pharmaceutically acceptable salt thereof, wherein R1is NR5R6, OR5, SR5or R7; R5and R6are independently selected from H, (1-8C)alkyl, (2-8C)alkenyl, (2-8C)alkynyl, (3-8C)cycloalkyl, (2-7C)heterocycloalkyl, alkyl(1-8C)carbonyl, (6-14C)arylcarbonyl, (6-14C)aryl or (4-13C)heteroaryl, or R5and R6together are joined in a (2-7C)heterocloalkyl ring; R7is (3-8C)cycloalkyl, (2-7C)heterocycloalkyl, (6-14C)aryl or (4-13C)heteroaryl, R2is (1-8C)alkyl, (2-8C)alkenyl, (2-8C)alkynyl, or (6-14C)aryl or (4-13C)heteroaryl, both optionally substituted with one or more substituents selected from (1-8C)alkyl, (1-8C)alkylthio, (1-8C)(di)alkylamino, (1-8C)alkoxy, (2-8C)alkenyl, or (2-8C)alkynyl; R3is (1-8C)alkyl, (2-8C)alkenyl, (2-8C)alkynyl, (3-8C)cycloalkyl, (2-7C)heterocycloalkyl, or (6-14C)aryl or (4-13C)heteroaryl, both optionally substituted with one or more substituents selected from (1-8C)alkyl, (1-8C)(di)alkylamino or (1-8C)alkoxy; X is S, O or N(R4); R4is H, (1-8C)alkyl, (1-8C)alkylcarbonyl, (6-14C)arylcarbonyl or (6-14C)aryl(1-8C)alkyl; Y is CH or N; Z is NH2or OH; A is S, N(H), N(R9), O or a bond; R9can be selected from the same groups as described for R2and B is N(H), O or a bond. The compounds of the invention have LH receptor activating activity and can be used in fertility regulating therapies.
Synthesis and reactions of 2-carbethoxy-3-aminothienopyridines
Dave, Chaitanya,Shah, P R,Shah, A B
, p. 492 - 494 (2007/10/02)
Several pyridothienopyrimidin-4(3H)-ones (V) and 2-methylpyridothienopyrimidin-4(3H)-ones (VI) have been synthesized from novel 2-carbethoxy-3-aminothienopyridines (IV). 2-Carbethoxymethylmercapto-3-cyanopyridine
CYCLIZATION OF NITRILES. IX. SYNTHESES BASED ON 2-ARYL-3-AROYL-1,1-DICYANOPROPANES
Shestopalov, A. M.,Promonenkov, V. K.,Sharanin, Yu. A.,Rodinovskaya, L. A.,Sharanin, S. Yu.
, p. 1382 - 1401 (2007/10/02)
2-Aryl-3-aroyl-1,1-dicyanopropanes and 2-aryl-3-aroyl-1-bromo-1,1-dicyanopropanes were synthesized from chalcones and malononitrile and were converted into 4,6-diaryl-2-bromo-3-cyanopyridines and 3-cyano-2(1H)-pyridinethiones.The 2-aryl-3-aroyl-1-bromo-1,1-dicyanopropanes proved convenient intermediates for the production of the corresponding cyclopropanes and other compounds.By their reaction with urea a new method was developed for the production of substituted 3-cyano-2(1H)-pyridinethiones.The 2-bromo-3-cyanopyridines contain a mobile bromine atom readily exchanged for the various nucleophilic residues of alcohols and amines and for iodide, and cyano and thiocyanato groups.The 3-cyano-2(1H)-pyridinethiones were used in the synthesis of 3-aminothienopyridines through the isolated 2-Z-methylthio-3-cyanopyridines.
