作者:Xu Zhu、Christopher C. McAtee、Corinna S. Schindler
DOI:10.1021/acs.orglett.8b00894
日期:2018.5.18
We report herein the scalable total synthesis of the secondary metabolite, mycocyclosin, initially isolated from Mycobacterium tuberculosis. Mycocylosin bears a highly strained 3,3′-dityrosine biaryl system which arises biosynthetically from an intramolecular oxidative dehydrogenative cross-coupling of cyclo(l-Tyr-l-Tyr) (cYY) catalyzed by the P450 enzyme CYP121. CYP121 is found exclusively in M. tuberculosis
我们在这里报告了最初从结核分枝杆菌中分离出来的次要代谢产物麦考环素的可扩展总合成方法。Mycocylosin带有一个高度应变3,3'-联芳基dityrosine系统,其从一个分子内氧化性生物合成产生脱氢交叉耦合环的(升-Tyr-升-Tyr)(CYY)由P450酶CYP121催化。CYP121仅在结核分枝杆菌中发现。通过Pd(II)催化的大环化,可扩展获得麦考环素和相关衍生物的途径,有望促进这些化合物作为新型结核病抗微生物剂的生物学评估。