Synthesis of New 1-Substituted-1H-1,2,3,4-Tetrazoles from L-α-Amino Acids and Their Biological Assays
作者:Davood Habibi、Payam Rahmani、Fatemeh Ahmadi、Hanieh Bokharaei、Zahra Kaboudvand
DOI:10.2174/15701786113106660072
日期:2014.1.31
A new series of 1-substituted 1H-1,2,3,4-tetrazoles was synthesized from the reaction of L-α-amino acids, triethylorthoformate and sodium azide in glacial acetic acid at 80 °C in good yields (55-80 %). Not only acetic acid is a good solvent but also an effective catalyst promoting the reaction compared with the Lewis acids/microwave, Lewis acids/ ultrasonic or Lewis acids/solvent-free conditions to
L-α?-氨基酸,原甲酸三乙酯和叠氮化钠在冰醋酸中在80°C的反应以高收率合成了一系列新的1-取代的1H-1,2,3,4-四唑。(55- 80%)。与路易斯酸/微波,路易斯酸/超声波或路易斯酸/无溶剂条件相比,乙酸不仅是一种良好的溶剂,而且是促进反应的有效催化剂,可得到相应的1H-1,2,3,4-四唑。同样,抗菌活性研究(对大肠杆菌的抗菌活性和对白色念珠菌的抗真菌活性)表明,除从色氨酸获得的四唑以外,所有获得的四唑均无活性。另外,所获得的1-取代的1H-1,2,3,4-四唑在不同的还原和氧化条件下具有抗性。