Synthesis 2022; 54(10): 2415-2422
DOI: 10.1055/a-1730-8628
paper

Total Synthesis of Cryptopleurine and Its Analogues

,
Takuro Yamakawa
,
Kaito Tateishi
,
Kiyosei Takasu
This work was financially supported by JSPS KAKENHI (Grants 18K05103 and 19H03350), MEXT KAKENHI (Grant JP21H05212) in Digi-TOS, and the AMED Platform for Supporting Drug Discovery and Life Science Research (Grant jp19am0101092j0003). Y.Y. thanks the Takeda Science Foundation for financial support.


Abstract

Total synthesis of phenanthroquinolizidine alkaloid cryptopleurine was achieved in 8 steps from commercially available 2-pyridinecarboxaldehyde and the epoxide derived from methyleugenol. The key intermediate vinyl triflate enables the divergent synthesis of crypto­pleurine derivatives by late-stage installation of various substituents on the C-ring.

Supporting Information



Publication History

Received: 29 November 2021

Accepted after revision: 04 January 2022

Accepted Manuscript online:
04 January 2022

Article published online:
21 February 2022

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