作者:Manuel G. Schriefer、Rainer Schobert
DOI:10.1021/acs.jnatprod.3c00053
日期:2023.2.24
were synthesized for the first time by a divergent strategy starting from a common intermediate in our synthesis of berkeleylactone A. Key features were the stereoselective formation of the γ,δ-dihydroxy-α,β-unsaturated ester moiety and the development of a general protection group strategy. Along the way we also established a short high-yielding formal synthesis of the often-synthesized antibiotic A26771B
六种最近分离的伯克利内酯 E、J、K、M、N 和 O 是首次通过发散策略从我们合成伯克利内酯 A 的一个共同中间体开始合成。关键特征是 γ,δ 的立体选择性形成-二羟基-α,β-不饱和酯部分和通用保护基策略的开发。在此过程中,我们还建立了经常合成的抗生素 A26771B 的短期高产正式合成。