Synthesis of novel imidazo[1,2-<i>a</i>][3,1]benzothiazines 4, imidazo[1,2-<i>a</i>]-[1,2,4]benzotriazines 5, and 4<i>H</i>-imidazo[2,3-<i>c</i>]pyrido[2,3-<i>e</i>][1,4]oxazines 6
作者:Jean Gauthier、Jean Simon Duceppe
DOI:10.1002/jhet.5570210432
日期:1984.7
derivatives of 5-phenyl-5H-imidazo[1,2-a][3,1]benzothiazine-2-carboxylic acid, ethyl ester (4), imidazo[2,1-c][1,2,4]benzotriazine-2-carboxylic acid, ethyl ester (5) and 4H-imidazo[2,3-c]pyrido-[2,3-e][1,4]oxazine (6) were prepared.
从容易获得的2-氨基苯甲酚(7),3-氨基-1,2,4-苯并三嗪(11)和2-氨基-3-吡啶醇(12)开始,是5-苯基-5 H-咪唑的新型衍生物[ 1,2- a ] [3,1]苯并噻嗪-2-羧酸乙酯(4),咪唑并[ 2,1- c ] [1,2,4]苯并三嗪-2-羧酸乙酯(5)和4 H-咪唑并[2,3 - c ]吡啶基-[2,3- e ] [1,4]恶嗪(6)。