Synthesis and antifungal activity of novel pyrano[2′,3′:4,5]thiazolo[2,3-b]quinazolines, pyrido[2′,3′:4,5]thiazolo[2,3-b]quinazolines and pyrazolo[2′,3′:4,5]thiazolo[2,3-b]quinazolines
作者:Soad M Abdel-Gawad、Mohamed S.A El-Gaby、Moustafa M Ghorab
DOI:10.1016/s0014-827x(00)00042-2
日期:2000.4
starting materials thiazolo[2,3-b]quinazolines (5a,b) were obtained in one pot synthesis by treating octahydroquinazoline (2) with chloroacetic acid and aromatic aldehydes. Thiazoloquinazoline (5) was reacted with CH2(CN)2/piperidine and CH2(CN)2/NaOH (CH3OH), to furnish pyrano[2',3':4,5]thiazolo[2,3-b]quinazolines (6a,b) and pyrido[2',3':4,5]thiazolo[2,3-b]quinazoline (7), respectively. Refluxing of
通过用氯乙酸和芳族醛处理八氢喹唑啉(2),一次合成得到噻唑并[2,3-b]喹唑啉(5a,b)原料。噻唑并喹唑啉(5)与CH2(CN)2 /哌啶和CH2(CN)2 / NaOH(CH3OH)反应,得到吡喃并[2',3':4,5]噻唑并[2,3-b]喹唑啉( 6a,b)和吡啶并[2',3':4,5]噻唑并[2,3-b]喹唑啉(7)。在乙醇中用NH2CSNH2 / KOH和肼将5a回流,得到了相应的[1,3] thiazino [4'5':4,5] thiazolo [2,3-b]喹唑啉(10)和pyrazolo [3',4 ':4,5]噻唑并[2,3-b]喹唑啉(11a,b)。对于某些合成的化合物显示出抗真菌活性。