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11,17-Dideoxyagelorin A and B, New Bromotyrosine Derivatives and Analogs from the Marine Sponge Suberea aff. praetensa

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11,17-Dideoxyagelorin A and B, New Bromotyrosine Derivatives and Analogs from the Marine Sponge Suberea aff. praetensa

Anake Kijjoa,

a,b

Rawiwan Watanadilok,

b,c

Pichai Sonchaeng

c

, Artur M. S. Silva

d

, Graham Eaton

e

and Werner Herz

f,*

a Instituto de Cieˆncias Biome´dicas de Abel Salazar, Universidade do Porto, 4099Ð003 Porto, Portugal

b Centro do Estudos de Quı´mica Orga´nica, Fitoquı´mica e Farmacologia da Universidade do Porto, Rua Anibal Cunha, 4050Ð017, Porto, Portugal

c Bangsaen Institute of Marine Science (BIMS), Burapha University, Bangsaen, Chonburi 21031, Thailand

d Departamento de Quı´mica, Universidade de Aveiro, 3810 Aveiro, Portugal

e Department of Chemistry, University of Leicester, University Road, Leicester, LEI 7RH, UK

f Department of Chemistry, The Florida State University, Tallahassee, FL 32306Ð4390, USA.

Fax: 1Ð8 50Ð6 44Ð82 81. E-mail: jdulin@chem.fsu.edu

* Author for correspondence and reprint requests;

Z. Naturforsch.56c,1116Ð1119 (2001); received February 8/July 30, 2001 Subereaaff.praetensa, 11-Dideoxyagelorin A and B, Bromotyrosine Derivatives

A collection of the marine spongeSubereaaff. praetensafrom the Gulf of Thailand fur- nished the bromotyrosine derivatives fistularin-3, agelorins A and B and the new desoxyagel- orins A and B.

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