期刊
SYNTHESIS-STUTTGART
卷 51, 期 2, 页码 552-556出版社
GEORG THIEME VERLAG KG
DOI: 10.1055/s-0037-1610909
关键词
total synthesis; goniothaline; Perkin reaction; silver-catalyzed cycloisomerization; selective demethylation
资金
- National Research Foundation of Korea (NRF) - Ministry of Science, ICT & Future Planning [NRF-2017R1C1B1001826]
In this paper, we report the first total synthesis of goniothaline A and B, which are rare natural pyridocoumarins isolated from Goniothalamus australis . The key feature of the synthesis of goniothaline A is high-yielding silver-catalyzed cycloisomerization to afford the pyridine moiety. In addition, goniothaline B, a natural 8-hydroxyquinoline derivative, is readily synthesized by the regioselective demethylation of goniothaline A.
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