Abstract:
:New phloroglucinol derivatives were isolated from the ethanolic extract of ECKLONIA MAXIMA, a brown alga found off the west coast of South Africa. Most of these compounds contain dibenzo[1,4]dioxin elements. The common basic unit of all the compounds found is eckol, a hexahydroxyphenoxydibenzo[1,4]dioxin composed of 3 phloroglucinol units. Phloroeckol A and B represent four-ringed phloroglucinol derivatives, whereas the only five-ringed substance (furodehydroeckol) displays a furan structure in addition. Six-ringed phloroglucinol derivatives composed of two eckol units joined either symmetrically (such as 7,7'-bieckol, 9,9'-bieckol) or asymmetrically (7,9'-bieckol, dieckol) are found frequently. Apart from these, tetraphlorethol C, a four-ringed tetraphloroglucinol triether which lacks both dioxin and furan structures, also occurs.
journal_name
Planta Medjournal_title
Planta medicaauthors
Glombitza KW,Vogels HPdoi
10.1055/s-2007-969498subject
Has Abstractpub_date
1985-08-01 00:00:00pages
308-12issue
4eissn
0032-0943issn
1439-0221journal_volume
51pub_type
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