中国南海海绵化学成份研究Ⅱ-F

STUDIES ON THE CHINESE SPONGE Ⅱ-F

从中国南海西沙群岛永胜岛附近海域采集到的一种海绵(种属未定)分离到一种新的不饱和长链二元酸酯,此化合物(S-VI)为无色透明液体,折光率 n_D^(20) =1. 4442,分子式C_(58) H_(112) O_4(M=872) ,通过对它的 IR,MS,~1HNMR,^(13) CNMR 及^(16) CNMRDEPT实验等波谱数据分忻,确定 S-VI 的结构为24-[(Z)-3-甲基-1-己烯基]-四十七酯肪二酸二乙酯.

A novel long-chain unsaturated diacidic ester compound(S-Ⅵ)C_(53) H_(112) O_4(liquid n_D^(20) =1. 4442) was isolated from an Unidentifiedsponge collected from the South China Sea.On the basis of thespectral data of IR,MS,~1HNMR,^(13) CNMR and ^(13) CNMR DEPTof it,S-Ⅵ was identified as diethyl 24-[(Z)-3-methyl-1-hexenyl]-heptatetracontanedioate.