Four pairs of tautomers from rhizomes of <i>Acorus calamus</i> and fruits of <i>Cornus officinalis</i>.

Hao, Zhi-You; Yang, Meng; Wang, Yan; Liu, Yan-Fei; Zhou, Shi-Qi; Li, Meng; Cao, Yan-Gang; Zheng, Xiao-Ke; Feng, Wei-Sheng; Yu, De-Quan

Four pairs of tautomers from rhizomes of Acorus calamus and fruits of Cornus officinalis.

Hao, Zhi-You; Yang, Meng; Wang, Yan; Liu, Yan-Fei; Zhou, Shi-Qi; Li, Meng; Cao, Yan-Gang; Zheng, Xiao-Ke; Feng, Wei-Sheng; Yu, De-Quan.

Afiliação

Hao ZY; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Henan University of Chinese Medicine, Zhengzhou, PR China.
Yang M; State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, PR China.
Wang Y; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Henan University of Chinese Medicine, Zhengzhou, PR China.
Liu YF; H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan.
Zhou SQ; State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, PR China.
Li M; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Henan University of Chinese Medicine, Zhengzhou, PR China.
Cao YG; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Henan University of Chinese Medicine, Zhengzhou, PR China.
Zheng XK; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Henan University of Chinese Medicine, Zhengzhou, PR China.
Feng WS; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Henan University of Chinese Medicine, Zhengzhou, PR China.
Yu DQ; The Engineering and Technology Center for Chinese Medicine Development of Henan Province, Henan University of Chinese Medicine, Zhengzhou, PR China.

Nat Prod Res ; : 1-10, 2022 Sep 06.

Article em En | MEDLINE | ID: mdl-36067505

RESUMO

A pair of new guaiane-type sesquiterpene tautomers (1) was isolated from rhizomes of Acorus calamus. Meanwhile, three pairs of known compounds, including a pair of dihydroflavone glycoside tautomers (2), a pair of 4-hydroxybenzoic acid ester glycoside tautomers (3), as well as a pair of secoiridoid glycoside tautomers (4) were isolated from fruits of Cornus officinalis. Their structures were elucidated by extensive spectroscopic and computational methods. Furthermore, the tautomeric mechanisms were discussed.

Palavras-chave

Acorus calamus; Cornus officinalis; Tautomers; tautomeric mechanisms

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