To investigate the cembranoid diterpenes from the soft coral Sarcophyton sp. collected in the South China Sea. Repeatedly column chromatography was performed for the isolation and purification. The structures were elucidated on the basis of extensive spectral data （IR, MS, 1 D- and 2D-NMR） analysis by comparing with literature data. A new cembranoid diterpene namely sarcophyolide A （1）, together with 7a, 8β-dihydroxydeepoxysarcophine （2） were isolated from this species. The cembranoid diterpenes with 7-1actone could be chemotaxonomic markers of Sarcophyton sp.
The current study aimed to investigate the chemical components of the Chinese mangrove plant Cerbera manghas L., collected in Hainan Island.Repeated column chromatography was performed for the isolation and purification.Compounds were identified by the analysis of their 1D and 2D NMR data as well as IR and MS spectral data.A new linear monoterpene,named （2E,6S）-8-hydroxy-2-hydroxymethyl-6-rnethyl-2-octenoic acid（1）,together with cerbinal（2）,cerberidol（3）,2α,3β,24-trihydroxyolea- 12en-28oic acid（4）,4,4,9,7- tetrahydroxy-3,3 -dimethoxy-7,9-epoxylignan （5）, （-）-olovil （6）, （＋）-cycioolivil （7）, naringenin-7-glucoside （8）, aromadendrin （9）, naringenine （10）, and （＋）-dihydroquercetin （11） were isolated from the EtOH and CH2Cl2 extracts. Compounds 4, 5, 8-11 were isolated from this plant for the first time.
