Two new bromophenols were isolated from Rhodomela confervoides. Their structrues were elucidated as 2, 2', 3-tribromo-3', 4, 4', 5-tetrahydroxy-6'-hydroxymethyldiphenylmethane and 2, 2', 3-tribromo...Two new bromophenols were isolated from Rhodomela confervoides. Their structrues were elucidated as 2, 2', 3-tribromo-3', 4, 4', 5-tetrahydroxy-6'-hydroxymethyldiphenylmethane and 2, 2', 3-tribromo-3', 4,4', 5-tetrahydroxy-6'-ethyloxymethyldiphenylmethane by spectroscopie methods including IR, HREIMS, 1D and 2D NMR techniques.展开更多
A new poly brominated dibenzylphenol named as rhodomevoidin was isolated from Rhodomela confervoides. Its structrue was elucidated as 3-bromo-4, 5-bis (2, 3-dibromo-4, 5- dihydroxybenzyl)pyrocatechol by spectroscopic...A new poly brominated dibenzylphenol named as rhodomevoidin was isolated from Rhodomela confervoides. Its structrue was elucidated as 3-bromo-4, 5-bis (2, 3-dibromo-4, 5- dihydroxybenzyl)pyrocatechol by spectroscopic methods including IR, HRFABMS, 1D and 2D NMR techniques.展开更多
基金support from the NNSF(Grant No.99-929-01-26)National“863”Program(Grant No.2001AA620403).
文摘Two new bromophenols were isolated from Rhodomela confervoides. Their structrues were elucidated as 2, 2', 3-tribromo-3', 4, 4', 5-tetrahydroxy-6'-hydroxymethyldiphenylmethane and 2, 2', 3-tribromo-3', 4,4', 5-tetrahydroxy-6'-ethyloxymethyldiphenylmethane by spectroscopie methods including IR, HREIMS, 1D and 2D NMR techniques.
基金The authors are grateful to professor Ablez zeper for mass spectra measurements,and financial support from the NSF(Grant No.99-929-01-26)national“863”program(Grant No.2001AA620403).
文摘A new poly brominated dibenzylphenol named as rhodomevoidin was isolated from Rhodomela confervoides. Its structrue was elucidated as 3-bromo-4, 5-bis (2, 3-dibromo-4, 5- dihydroxybenzyl)pyrocatechol by spectroscopic methods including IR, HRFABMS, 1D and 2D NMR techniques.