Using various chromatographic experiments, four sterols as 5α,8α-epidioxy-24(S)-ethylcholest-6-en-3β-ol (1), (22E,24S)-5α,8α-epidioxy-24-ethyl-cholesta-6,22-dien-3β-ol (2), 7-oxocholesterol (3), and (22E)-3β-hydroxycholesta-5,22-dien-7-one (4) were isolated from the methanol extract of the blood cockle Anadara granosa. The structures of isolated compounds were elucidated by 1D and 2D-NMR experiments in comparison with reported data. This is the first report of these compounds from A. granosa.
Thanh Huong, P. T., Giang, N. H., Hong Hanh, T. T., Thung, D. C., Cuong, N. X., Thanh, N. V., & Minh, C. V. (2016). Steroids from the blood cockle Anadara granosa. Vietnam Journal of Chemistry, 54(6), 786. https://doi.org/10.15625/0866-7144.2016-00405