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Chemical constituents of Chirita drakei Burtt collected in Ha Long bay, Quang Ninh province, Viet Nam. Part 1. Compounds isolated from the n-hexane and ethyl acetate extracts.

Nguyen Thi Hoang Anh, Nguyen Van Tuan, Tran Duc Quan, Dao Duc Thien, Nguyen Thanh Tam, Giang Thi Kim Lien, Trinh Thi Thuy, Tran Van Sung

Abstract


Two triterpenes, an anthraquinone, two lignans and a phenolic compound were isolated from the n-hexane and ethyl acetate extracts of the aerial part of Chirita drakei Burtt collected in islands, on mountain slopes of Ha Long bay, Quang Ninh province. Their structures have been elucidated by mass, NMR spectroscopy and comparison with published data. There are no report on the chemical constituents of Chirita drakei before our study.

Keywords. Chirita drakei, triterpene, anthraquinone, lignin.

Keywords


Chirita drakei, triterpene, anthraquinone, lignin.

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