Li-Mei Dong, Qiao-Lin Xu, Shao-Bo Liu, Shan-Xuan Zhang, Meng-Fei Liu, Jin-Long Duan, Jin-Kui Ouyang, Jia-Tao Hu, Fen-Yu Fu, Jian-Wen Tan
Four new germacrane sesquiterpene dilactones, 2 β -hydroxyl-11 β ,13-dihydrodeoxymikanolide ( 1 ), 3 β -hydroxyl-11 β ,13-dihydrodeoxymikanolide ( 2 ), 1 α ,3 β -dihydroxy-4,9-germacradiene-12,8:15,6-diolide ( 3 ), and (11 β ,13-dihydrodeoxymikanolide-13-yl)-adenine ( 4 ), together with five known ones ( 5 - 9 ) were isolated from the aerial parts of Mikania micrantha . Their structures were elucidated on the basis of extensive spectroscopic analysis. Compound 4 is featured with an adenine moiety in the molecule, which is the first nitrogen-containing sesquiterpenoid so far isolated from this plant species...
February 24, 2023: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry