ol6b00336_si_002.cif (34.57 kB)

Aspterpenacids A and B, Two Sesterterpenoids from a Mangrove Endophytic Fungus Aspergillus terreus H010

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posted on 03.03.2016, 13:19 by Zhaoming Liu, Yan Chen, Senhua Chen, Yayue Liu, Yongjun Lu, Dongni Chen, Yongcheng Lin, Xishan Huang, Zhigang She
Two new sesterterpenoids, aspterpenacids A (1) and B (2), with an unusual carbon skeleton of a 5/3/7/6/5 ring system were isolated from the mangrove endophytic fungus Aspergillus terreus H010. Their structures were elucidated on the basis of spectroscopic methods, single-crystal X-ray diffraction analysis, and electronic circular dichroism calculations. A biogenetic pathway for 1 and 2 is proposed. Both 1 and 2 showed no significant antibacterial activity or cytotoxicity at 50 μM.