한국 서해 상낙월도에서 채집한 연체 동물인 Bullacta exarata로부터 통상적인 9-hexadecenoic acid ethyl ester 이외에 불포화된 all-cis-5,8,11,14-eicosatetraenoic(arachidonic), 7,10,13-hexadecatrienoic, 10,13-octadecadienoic acid ethyl ester 및 상당량의 glyceryl ether인 chimyl alcohol이 검출되었다.
Unsaturated all-cis-5,8,11,14-eicosatetraenoic(arachidonic), 7,10,13-hexadecatrienoic, 10, 13-octadecadienoic acid ethyl ester and a lot of chimyl alcohol were isolated along with common 9-hexadecenoic acid ethyl ester from marine mollusca Bullacta exarata collected from sangnackworl island in the Korea sea. In addition, cholesterol and its fatty acid ester were obtained. Their structures were deduced from $^1H-$and $^{13}C$-NMR, GC-ms, and FT-IR spectra.
