Syntheses of potentially bioactive [1,2,4]oxadiazolo[5,4-d]benzothiazepines by 1,3-dipolar cycloaddition
作者:Xiao-Long Wu、Fang-Ming Liu、Song-Wei Shen
DOI:10.1002/jhet.479
日期:2010.11
o‐aminobenzenthiol to give a series of 1,5‐benzothiazepines, 3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i, 3j, 3k, 3l. The [3+2] 1, 3‐dipolar cycloaddition reactions of 3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i, 3j, 3k, 3l with ethyl chlorooximidoacetate in the presence of Et3N afforded the target compounds, 4a, 4b, 4c, 4d, 4e, 4f, 4g, 4h, 4i, 4j, 4l possessing an additional 1,2,4‐oxadiazole ring fused to the heptaatomic
查耳酮2a,2b,2c,2d,2e,2f,2g,2h,2i,2j,2k,2l与邻氨基苯甲硫醇反应生成一系列1,5-苯并噻嗪类化合物3a,3b,3c,3d,3e,3f,3g,3h,3i,3j,3k,3l。在Et 3 N的存在下,3a,3b,3c,3d,3e,3f,3g,3h,3i,3j,3k,3l与[3 + 2] 1,3-偶极环加成反应得到目标化合物4a,4b,4c,4d,4e,4f,4g,4h,4i,4j,4l拥有一个额外的与1,2,4-恶二唑环稠合的七原子核。通过光谱方法和X射线晶体学分析阐明了结构。J.杂环化学。(2010)。