Synthetic approach towards nakadomarin A: efficient synthesis of the central tetracyclic core
作者:Toshiaki Nagata、Atsushi Nishida、Masako Nakagawa
DOI:10.1016/s0040-4039(01)01792-0
日期:2001.11
An efficient synthesis of the tetracyclic core of nakadomarin A was accomplished starting from methyl 4-oxo-3-piperidinecarboxylate. The key steps were intramolecular cyclization of furan to N-acyliminium ions to construct the strained central cyclopentene ring.
从4-氧代-3-哌啶甲酸甲酯开始,完成了对nakadomarin A的四环核的有效合成。关键步骤是将呋喃分子内环化为N-酰基亚胺离子以构建应变中心环戊烯环。