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Journal of Asian Natural Products Research Volume 21, 2019 - Issue 10
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Original Articles

Two new naphthalene glycosides from the seeds of Cassia obtusifolia

Xu Pang Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine , Tianjin300193, China; Tianjin Key Laboratory of TCM Chemistry and Analysis, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine , Tianjin300193, China
,
Na-na Li Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine , Tianjin300193, China
,
He-Shui Yu Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine , Tianjin300193, China
,
Li-Ping Kang State Key Laboratory of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences , Beijing100700, China
,
Hai-Yang Yu Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine , Tianjin300193, China; Tianjin Key Laboratory of TCM Chemistry and Analysis, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine , Tianjin300193, China
,
Xin-Bo Song Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine , Tianjin300193, China
,
Guan-Wei Fan Central Laboratory, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine , Tianjin300193, China
&
Li-Feng Han Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine , Tianjin300193, China; Tianjin Key Laboratory of TCM Chemistry and Analysis, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine , Tianjin300193, ChinaCorrespondence[email protected]
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Pages 970-976 | Received 02 Jan 2018, Accepted 16 May 2018, Published online: 27 Jun 2018
 
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Abstract

A phytochemical study on the seeds of Cassia obtusifolia was carried out, which finally led to obtain two naphthalenes (1 and 2), two naphthopyrans (3 and 4) and twelve anthraquinones (5–16). The structures of all compounds were established mainly by NMR and MS experiments as well as the necessary chemical evidence. Among them, 1 and 2 (obtusinaphthalensides A and B) were identified to be new naphthalene glycosides.

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