Recently, the paper entitled " Unusual polyoxygenated casbane diterpenoids from the South China Sea soft coral Sinularia erecta " was published in Bioorganic Chemistry. In this paper, seven novel casbane diterpenoids were isolated from Sinularia erecta. Sinuereperoxides B and C are two rare casbane diterpenoids with an uncommon 8,10-peroxide bridge. The absolute configurations were determined by quantum chemical calculations and X-ray diffraction analysis. In addition, anti-inflammatory activity by the inhibition of TNF-α release was evaluated. The co-first authors are Wu Mengjun and Liu Jiao. The corresponding author are Professor Guo Yuewei, Professor Li Xuwen.