Ali Ghada, Cuny Gregory D
Department of Chemistry, College of Natural Sciences and Mathematics, University of Houston, Houston, Texas 77204, United States.
Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas 77204, United States.
ACS Omega. 2020 Apr 8;5(15):9007-9012. doi: 10.1021/acsomega.0c00976. eCollection 2020 Apr 21.
Polycyclic spiro lignans are a new family of lignan natural products recently isolated from . The first synthesis of two model substrates of this rare family of natural products was achieved in six steps. An efficient strategy that features Suzuki coupling and Friedel-Crafts acylation was employed to construct the ABC tricyclic fluorene framework. Subsequently, Grignard reaction followed by acid-mediated cyclization furnished the spiro cyclic ether ring D.
多环螺环木脂素是最近从……中分离出的一类新的木脂素天然产物。这个稀有天然产物家族的两种模型底物首次通过六步合成得到。采用了以铃木偶联反应和傅克酰基化反应为特色的高效策略来构建ABC三环芴骨架。随后,格氏反应接着酸介导的环化反应生成了螺环醚环D。