Concise Synthesis and Antimicrobial Evaluation of the Guanidinium Alkaloid Batzelladine D: Development of a Stereodivergent Strategy
作者:You-Chen Lin、Aubert Ribaucourt、Yasamin Moazami、Joshua G. Pierce
DOI:10.1021/jacs.0c04091
日期:——
describe a stereodivergent route to (±)-batzelladine D (2), (+)-batzelladine D (2), (-)-batzelladine D (2), and a series of stereochemical analogues and explore their antimicrobial activity for the first time. The concise synthetic approach enables access to the natural products in a sequence of 8-12 steps from readily available building blocks. Highlights of the synthetic strategy include gram-scale
在此,我们描述了 (±)-batzelladine D (2)、(+)-batzelladine D (2)、(-)-batzelladine D (2) 和一系列立体化学类似物的立体发散路线,并探索了它们的抗菌活性第一次。简洁的合成方法可以从现成的构建块中以 8-12 个步骤的顺序访问天然产物。合成策略的亮点包括后期中间体的克级制备、围绕三环骨架的精确立体控制,以及实现模拟生成的模块化策略。关键的双环 β-内酰胺中间体不仅作为吡咯烷立体化学的关键控制元件,而且作为预活化偶联伙伴来安装酯侧链。