Rhodopyran, a carboxylated hexahydrocyclopenta[b]pyran from Rhodococcus.

Authors

Enjuro Harunari, Sara Fushimi, Yasuhiro Igarashi

Published in

Beilstein journal of organic chemistry. Volume 22. Pages 1107-1113. Epub Jul 28, 2026.

Abstract

A new bicyclic metabolite, rhodopyran (1), was isolated from the culture broth of Rhodococcus sp. strain RD066637. The planar structure was elucidated by 1D/2D NMR analyses and HRMS spectrometry, and the relative configuration was assigned from vicinal coupling constants and NOESY correlations, while the absolute configuration remains undetermined. Rhodopyran represents a structurally unusual carboxylated hexahydrocyclopenta[b]pyran and expands the known metabolite diversity of Rhodococcus, highlighting Rhodococcus as a source of uncommon natural-product scaffolds.

PMID:
42548989
Bibliographic data and abstract were imported from PubMed on 04 Aug 2026.

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