应用天然产物 ›› 2021, Vol. 11 ›› Issue (1): 111-118.DOI: 10.1007/s13659-020-00288-4
Ming Chen1,2, Jia-Qing Cao1, Wen-Jing Wang1,2, Ni-Ping Li1,2, Yan Wu1,2, Lei Wang1,2, Wen-Cai Ye1,2
Ming Chen1,2, Jia-Qing Cao1, Wen-Jing Wang1,2, Ni-Ping Li1,2, Yan Wu1,2, Lei Wang1,2, Wen-Cai Ye1,2
摘要: Myrcauones A-D (1-4), four new phloroglucinol-terpene adducts were isolated from the leaves of Myrciaria caulifl ora. Their structures with absolute configurations were elucidated by combination of spectroscopic analysis, single crystal X-ray diffraction, and electronic circular dichroism (ECD) calculations. Compound 1 was a rearranged isobutylphloroglucinol-pinene adduct featuring an unusual 2,3,4,4a,10,11-hexahydro-1H-3,11a-methanodibenzo[b,f]oxepin backbone. Compound 4 showed moderate antibacterial activity against Gram-positive bacteria including multiresistant strains.