A Zwitterionic Alkaloid, Containing a Rare Cyclopentadienyl Anion Unit, from the Stem Barks of  Daphniphyllum macropodum   Miq. | Zendy

Gan XianWen | Zendy; Bai HaiYun | Zendy; Chen QiGang | Zendy; Ma Lei | Zendy; Hu LiHong | Zendy

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A Zwitterionic Alkaloid, Containing a Rare Cyclopentadienyl Anion Unit, from the Stem Barks of Daphniphyllum macropodum Miq.

Author(s) -

Gan XianWen,

Bai HaiYun,

Chen QiGang,

Ma Lei,

Hu LiHong

Publication year - 2006

Publication title -

chemistry and biodiversity

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.427

H-Index - 70

eISSN - 1612-1880

pISSN - 1612-1872

DOI - 10.1002/cbdv.200690127

Subject(s) - iminium , chemistry , zwitterion , cyclopentadienyl complex , alkaloid , counterion , crystal structure , stereochemistry , ion , crystallography , molecule , organic chemistry , catalysis

A new Daphniphyllum alkaloid daphnicyclidin L ( 1 ), containing a rare cyclopentadienyl anion, which is stabilized as a zwitterion by an internal iminium counterion, was isolated from the stem barks of Daphniphyllum macropodum Miq ., together with four known alkaloids: daphnicyclidin D ( 2 ), daphnicyclidin H ( 3 ), deoxyyuzurimine ( 4 ), and yuzurimine ( 5 ). The structures were elucidated on the basis of spectroscopic data. The configuration of 1 was elucidated by single‐crystal X‐ray diffraction crystallography.

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