Synlett
DOI: 10.1055/s-0043-1773544
letter

Synthetic Studies toward 4,9-Anhydro-10-hemiketal-5-deoxy-tetrodotoxin, a Proposed Biosynthetic Precursor of Tetrodotoxin

Tadachika Miyasaka
a   Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
,
Yuta Kudo
b   Graduate School of Agricultural Science, Tohoku University, 468-1 Aramaki-Aza-Aoba, Aoba-ku, Sendai 980-8572, Japan
c   The Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, 6-3 Aramaki-Aza-Aoba, Aobaku, Sendai 980-8578, Japan
,
Yotsu-Yamashita Mari
b   Graduate School of Agricultural Science, Tohoku University, 468-1 Aramaki-Aza-Aoba, Aoba-ku, Sendai 980-8572, Japan
,
Masaatsu Adachi
d   Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aramaki-Aza-Aoba, Aobaku, Sendai 980-8578, Japan
,
Toshio Nishikawa
a   Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
› Author Affiliations

This research was supported in part by the Japan Society for the Promotion of Science (JSPS), KAKENHI [Grant-in-Aid for Early-Career Scientists (22K20571), Grant-in-Aid for Scientific Research (B) (24K01636), Grant-in-Aid for Transformative Research Areas (A) (23H04553), and Grant-in-Aid for Scientific Research(A) (23H00347)] from the Ministry of Education, Culture, Sports, Science and Technology (MEXT).


Abstract

We report the synthesis of the 8-epi analogue of 4,9-anhydro-10-hemiketal-5-deoxytetrodotoxin, a proposed biosynthetic precursor of tetrodotoxin isolated from the Japanese toxic newt Cynops ensicauda popei, from a previously reported protected amine via stereoselective hydroxylation of the bicyclic carbocycle.

Supporting Information



Publication History

Received: 21 February 2025

Accepted after revision: 07 April 2025

Article published online:
27 May 2025

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