On the novel free porphyrins corallistin B, C, D, and E : isolation from the demosponge #Corallistes$ sp. of the Coral Sea and reactivity of their nickel (2) complexes toward formylating reagents

On the novel free porphyrins corallistin B, C, D, and E : isolation from the demosponge #Corallistes$ sp. of the Coral Sea and reactivity of their nickel (2) complexes toward formylating reagents D'Ambrosio M. auteur aut IRD Guerriero A. auteur aut IRD Debitus Cécile auteur aut IRD Ribes Olivier auteur aut IRD Pietra F. auteur aut IRD text journalArticle eng text/pdf reformatted digital access Reported here are the novel free corallistin B, C, D, and E, isolated as methyl esters 2a, 3a, 4a, and 5a, respectively, from the sponge Corallistes sp.(Lithistida) collected at the basis of the South New Caledonian coral reef. A protocol is also established for formulation of their NiII complexes, which show a different reactivity pattern toward DMF/POCI3 from metal complexes of deuteroporphyrin IX (isolate as 6a) also present in the sponge, the new corallistins, which may be thought to derive from protoporphyrin via heme, account for an amazing 60% of the etOH extract from the sponge. (Résumé d'auteur) specialized INVERTEBRE AQUATIQUE SUBSTANCE NATURELLE STRUCTURE CHIMIQUE ACTIVITE BIOLOGIQUE EPONGE CORALLISTINE NOUVELLE CALEDONIE 035SUBSAN01 Helvetica Chimica Acta 76 1489-1496 1993 0018-019X https://www.documentation.ird.fr/hor/fdi:39872 10.1002/hlca.19930760410 0018-019X [F B39872] https://www.documentation.ird.fr/hor/fdi:39872 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/pleins_textes_6/b_fdi_35-36/39872.pdf IRD - Base Horizon / Pleins textes 1994-08-05 2015-07-02 fdi:39872 fre