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Communication | Regular issue | Vol 16, No. 10, 1981, pp.1659-1664
Published online, 1st January, 1970
DOI: 10.3987/R-1981-10-1659
Synthesis of Pentacyclic Structure of Griseusin A

Kazuhisa Masamoto, Yoshio Takeuchi, Kei Takeda, and Eiichi Yoshii*

*Faculty of Pharmaceutical Sciences, Toyama Medical and Pharmaceutical University, 2630 Sugitani, Toyama, Toyama 930-0194, Japan


A synthetic method of the framework of griseusin A was presented. The key step involved an intramolecular ketalization of the δ,δ’-dihydroxyketone derivative which was prepared from 2-allyl-3-bromo-1,4-dimethoxynaphthalene.