Sterically controlled regiospecific heterocyclization of 3-hydrazino-5-methyl-1,2,4-triazino[5,6-b]indole to 10-methyl-1,2,4-triazolo[4′,3′:2,3]1,2,4-triazino[5,6-b]indoles
作者:M.A.E Shaban、A.Z Nasr、A.E.A Morgaan
DOI:10.1016/s0014-827x(99)00107-x
日期:1999.11
3-Hydrazino-5-methyl-1,2,4-triazino[5,6-b]indole underwent sterically controlled regiospecific heterocyclizations with a variety of one-carbon cyclizing agents to give the sterically more favored linearly annulated 10-methyl-1,2,4-triazolo[4',3':2,3[1,2,4-triazino[5,6-b]indoles rather than the sterically less favored angularly annulated 10-methyl-1,2,4-triazolo[3',4':3,4]1,2,4-triazino[5,6-b]indoles. The assigned structures
3-Hydrazino-5-methyl-1,2,4-triazino [5,6-b]吲哚与多种单碳环化剂进行空间控制的区域特异性杂环化反应,得到空间上更有利的线性环化的10-甲基-1 ,2,4-三唑并[4',3':2,3 [1,2,4-三嗪并[5,6-b]吲哚,而不是在空间上较不受欢迎的角环化的10-甲基-1,2,4- triazolo [3',4':3,4] 1,2,4-triazino [5,6-b]吲哚。通过与明确合成的真实数据,化学和光谱数据进行比较,确定了指定的结构。研究了一些制备的化合物的抗菌活性。