Abstract
Three new sterols, 5α,8α-epidioxy-24-norcholesta-6,9(11),22-trien-3β-ol (1), 5α,8α-epidioxy-cholesta-6,9(11),24-trien-3β-ol (2), and 5α,8α-epidioxy-cholesta-6,23-dien-3β,25-diol (3), with four known sterols (4–7) were isolated from a marine sponge Monanchora sp. Their chemical structures were elucidated by extensive spectroscopic analysis. Compounds 1 and 3–7 showed moderate cytotoxicity against several human carcinoma cell lines including renal (A-498), pancreatic (PANC-1 and MIA PaCa-2), and colorectal (HCT 116) cancer cell lines.
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Acknowledgments
This work was supported by the Marine Biotechnology Program, Ministry Oceans and Fisheries and by the 2012 Yeungnam University Research Grant. B. Mun, H. Kim, D. Hahn, J. Lee were in part supported by the BK21 program, Ministry of Education, Korea.
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Mun, B., Wang, W., Kim, H. et al. Cytotoxic 5α,8α-epidioxy sterols from the marine sponge Monanchora sp.. Arch. Pharm. Res. 38, 18–25 (2015). https://doi.org/10.1007/s12272-014-0480-8
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DOI: https://doi.org/10.1007/s12272-014-0480-8