{Author}: Yi-Lei Nie,Yun-Dan Wu,Chuan-Xi Wang,Ru Lin,Yang Xie,Dong-Sheng Fang,Hong Jiang,Yun-Yang Lian*

{Journal}: Natural product research

{Year}: 2018

{Volume}: 32

{Issue}: 18

{Pages}: 2133-2138

{Keywords}: Micromonospora； antitumour activity； aurodox； macrolactam

{Abstract}: Chemical investigation of a marine-derived actinomycete strain Micromonospora sp. FIM05328 isolated from a soil sample collected from the East China Sea, resulted in the discovery of a new 26-membered polyene macrolactam metabolite FW05328-1 (1), together with a known polyene with pyridone ring compound aurodox (2). The structures of compounds 1 and 2 were determined by the detailed analysis of 1D, 2D NMR and HR-TOF-MS data, along with literature data analysis. 1 and 2 exhibited excellent antiproliferative activities against KYSE30, KYSE180 and EC109 human tumour cell lines, but displayed no antibacterial activities against bacteria or fungi were tested.