作者:Marie-Christine Duriez、Thierry Pigot、Claude Picard、Louis Cazaux、Pierre Tisnès
DOI:10.1016/s0040-4020(01)80444-0
日期:1992.1
tetralactams with two dimethyleneoxy moieties is described. The method consists in the ring closure of a bis-secondary amine with a diamide diacid activated by the thiazolidine-2-thione group. The cyclization does not require high dilution techniques and provides the expected tetralactams in good yields, ranging from 42% to 73%. This synthetic pathway leads to dissymmetrical or symmetrical molecules with
描述了一种用于合成具有两个二亚甲氧基部分的新的18、21或24元大环四内酰胺的三步法。该方法在于双仲胺与被噻唑烷-2-硫酮基团活化的二酰胺二酸的闭环。环化不需要高稀释度技术,并且可以以42%至73%的高产率提供预期的四内酰胺。该合成途径导致具有可变亲脂性的取代基的不对称或对称分子。