Structure Revision of Caesalpinistas A and B and Isolation of a New Furanoditerpenoid from the Cotyledons of  Caesalpinia decapetala  var.  japonica | Zendy

Kamikawa Sayuri | Zendy; Ohta Emi | Zendy; Nehira Tatsuo | Zendy; Ômura Hisashi | Zendy; Ohta Shinji | Zendy

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Structure Revision of Caesalpinistas A and B and Isolation of a New Furanoditerpenoid from the Cotyledons of Caesalpinia decapetala var. japonica

Author(s) -

Kamikawa Sayuri,

Ohta Emi,

Nehira Tatsuo,

Ômura Hisashi,

Ohta Shinji

Publication year - 2016

Publication title -

helvetica chimica acta

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.74

H-Index - 82

eISSN - 1522-2675

pISSN - 0018-019X

DOI - 10.1002/hlca.201500171

Subject(s) - chemistry , terpenoid , caesalpinia , japonica , stereochemistry , chemical structure , botany , organic chemistry , biology

A known cassane‐type furanoditerpenoid, caesalpinista B ( 1 ), and a new diterpenoid, deoxycaesaljaponin A ( 2 ), were isolated from the cotyledons of Caesalpinia decapetala var. japonica. The previously reported configurational assignments of 1 and the related diterpenoid caesalpinista A ( 3 ) were revised on the basis of X‐ray crystallography and chemical conversion. The structure of 2 was elucidated by spectroscopic data and chemical conversion into 3 .

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