Iridoids and anthraquinones from the roots of <i>Morinda officinalis</i>
Vu Thi Phuong AnhQuangnam University 102 Hung Vuong, Tam Ky, Quang Nam 51000 Viet NamVo Van MinhUniversity of Science and Education, The University of Danang 459 Ton Duc Thang, Lien Chieu Da Nang 50000 Viet NamVo Chau TuanUniversity of Science and Education, The University of Danang 459 Ton Duc Thang, Lien Chieu Da Nang 50000 Viet NamNguyễn Văn KhánhUniversity of Science and Education, The University of Danang 459 Ton Duc Thang, Lien Chieu Da Nang 50000 Viet NamDương Thị DungGraduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST) 18 Hoang Quoc Viet, Cau Giay Hanoi 10000 Viet NamNguyễn Xuân CườngGraduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST) 18 Hoang Quoc Viet, Cau Giay Hanoi 10000 Viet NamPhan Văn KiệmGraduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST) 18 Hoang Quoc Viet, Cau Giay Hanoi 10000 Viet Nam
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Abstract Three iridoids, asperulosidic acid ( 1 ), geniposidic acid ( 2 ), and galioside ( 3 ) and three anthraquinones, 2‐hydroxymethyl‐3‐hydroxyanthraquinone ( 4 ), rubiadin‐1‐methyl ether ( 5 ), and anthragallol‐2‐methyl ether ( 6 ) were isolated from the methanol extract of the Morinda officinalis leaves. Their chemical structures were elucidated by ESI‐MS, 1D‐ and 2D‐NMR spectra and comparison with the data reported in the literature. Galioside ( 3 ) was reported from Morinda genus for the first time.
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