Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 23002-78-0, is researched, SMILESS is CC(C1=CSC(C)=N1)=O, Molecular C6H7NOSJournal, Pharmazie called Heteroarylquinoxalines as thiabendazole analogs. Part 4: Synthesis of 2-thiazolylquinoxalines, Author is Sarodnick, G.; Kempter, G., the main research direction is thiabendazole analog thiazolylquinoxaline; quinoxaline thiazolyl thiabendazole analog.Computed Properties of C6H7NOS.
Thiazolylquinoxalines I (R1 = H, Me, Ph, NH2, CO2Et, R2 = H; R1 = H, Ph, NH2, CO2Et, R2 = Me) and II (R1 = Me, Ph) were prepared by 2 methods. In the 1st method, acetylthiazoles III and IV (R3 = Me) were converted to glyoxals III and IV (R3 = CHO), isonitroso ketones IV (R3 = CH:NOH), or bromo ketones IV (R3 = CH2Br) which cyclized with o-(H2N)2C6H4 to I and II. In the 2nd method, acetylquinoxalines V were brominated and the products cyclized with thioamides to I. I (R1 = CO2Et, R2 = H, Me) underwent saponification, ammonolysis, aminolysis, and hydrazinolysis to give I (R1 = CO2K, CO2H, CONR4R5; R4 = H, Me, Et, Bu, NH2, R5 = H; R4 = R5 = Me; NR4R5 = morpholino, piperidino).
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