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  • Title: [Chemical constituents from marine alga Chaetomorpha basiretorsa].
    Author: Shi DY, Han LJ, Sun J, Wang Y, Yang YC, Shi JG, Fan X.
    Journal: Zhongguo Zhong Yao Za Zhi; 2005 Mar; 30(5):347-50. PubMed ID: 15806966.
    Abstract:
    OBJECTIVE: To investigate the chemical constituents of marine alga Chaetomorpha basiretorsa. METHOD: Compounds were isolated by normal phase silica gel and Sephadex LH-20 gel colum chromatography, reverse phase MPLC, reverse phase HPLC and recrystallization. Their structures were elucidated by spectroscopic methods including MS, IR, NMR, and X-ray crystalography. Cytotoxicity of the compounds were screened by using standard MTT method. RESULT: Nine compounds were isolated from C. basiretorsa and their structures were identified as N-phenyl-2-naphthalenamine( I ), dibutyl phthalate( II ), diisobutyl phthalate( III ), 1-phenyl-ethane-1, 2-diol( IV ), 2-hydrox-gamma-benzaldehyde( V ), diethyleneglycol monobenzoate( VI ), uracil( VII ), thymine( VIII ) and thymidine( IX ). CONCLUSION: All these compounds were obtained from this genus for the first time, N-phenyl-2-naphthalenamine and diethyleneglycol monobenzoate were first reported from the marine organisms. Compound I and VII showed moderate activity against KB cell(IC50 10.15 microg x mL(-1) for I and 3.79 microg x mL(-1) for VII ) and MCF-7 cell(IC50 3.24 microg x mL(-1) for VII).
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