Unambiguous Characterization of the Sesquiterpene (7R,9E)-1,2,11-Trihydroxy-1,3,5,9-bisabolatetraene through Its Enantioselective Synthesis
作者:Stefano Serra、Giovanni Fronza
DOI:10.1002/ejoc.201200620
日期:2012.9
The bisabolane sesquiterpene (7R,9E)-1,2,11-trihydroxy-1,3,5,9-bisabolatetraene previously extracted from Commiphora kua resins was prepared by enantioselective synthesis using an enzyme-mediated resolution procedure as the key step. Both the chemical structure and the absolute configuration were unambiguously assigned, although the comparison of the obtained analytical data with those previously reported
之前从 Commiphora kua 树脂中提取的红没药烷倍半萜 (7R,9E)-1,2,11-trihydroxy-1,3,5,9-bisabolatetraene 是通过对映选择性合成制备的,使用酶介导的拆分程序作为关键步骤。化学结构和绝对构型都被明确指定,尽管所获得的分析数据与先前报告的分离萜烯的比较表明天然产物的表征可能存在错误。对上述化合物的化学稳定性的进一步研究表明,它在酸性环境中非常不稳定,容易环化生成相应的色烷衍生物。