A crotofolane-type diterpenoid and a rearranged nor-crotofolane-type diterpenoid with a new skeleton from the stems of Croton cascarilloides

Tetrahedron Letters Volume 51 Issue 33 Page 4320-4322 published_at 2010-08-18
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Title ( eng )
A crotofolane-type diterpenoid and a rearranged nor-crotofolane-type diterpenoid with a new skeleton from the stems of Croton cascarilloides
Creator
Kawakami Susumu
Shinzato Takakazu
Takeda Yoshio
Kawahata Masatoshi
Yamaguchi Kentaro
Source Title
Tetrahedron Letters
Volume 51
Issue 33
Start Page 4320
End Page 4322
Abstract
From the stems of Croton cascarilloides collected in the Okinawa Islands, a structurally rare crotofolane-type diterpenoid (1) and a rearranged nor-crotofalane, a new skeletal diterpenoid (2), were isolated. The structures were determined by X-ray crystallographic analyses, establishing their absolute stereostructures for the first time. Compound 2 was probably biosynthesized from 1 through several steps, such as decarboxylation, oxidation, C-C bond migration, etc.
Keywords
Croton cascarilloides
Euphorbiaccae
Crotofolane
Diterpenoid
NDC
Medical sciences [ 490 ]
Language
eng
Resource Type journal article
Publisher
Pergamon-Elsevier Science LTD
Date of Issued 2010-08-18
Rights
Copyright (c) 2010 Elsevier Ltd
Publish Type Author’s Original
Access Rights open access
Source Identifier
[ISSN] 0040-4039
[DOI] 10.1016/j.tetlet.2010.06.033
[NCID] AA00861801
[DOI] http://dx.doi.org/10.1016/j.tetlet.2010.06.033