Studies on Quinazolines. Part I. Annelation to the Quinazoline Ring Utilizing Amino Acid Esters
作者:A. A. F. Wasfy
DOI:10.1080/10426500211723
日期:2002.5.1
The reaction of quinazoline-4(3H)-thiones 2a-d with amino acid ester hydrochlorides in boiling solvents, under the basic catalysis, afforded the corresponding substitution products (3-6)a-e in low yield. The reaction could be improved by carrying it without a solvent yielding imidazo[1,2-c]- and pyrimido[1,2-c]quinazolines (7-10)a-e . The antibacterial and antifungal activities of the prepared compounds
喹唑啉-4(3H)-硫酮2a-d与氨基酸酯盐酸盐在沸腾溶剂中在碱性催化下反应,以低收率得到相应的取代产物(3-6)ae。该反应可以通过在没有溶剂的情况下进行,产生咪唑并 [1,2-c]- 和嘧啶并 [1,2-c] 喹唑啉 (7-10)ae 来改善。测试了制备的化合物的抗菌和抗真菌活性。