@article{fdi:010069903, title = {{I}limaquinone and 5-epi-{I}limaquinone : beyond a simple diastereomeric ratio, biosynthetic considerations from {NMR}-based analysis}, author = {{B}oufridi, {A}. and {L}achkar, {D}. and {E}rpenbeck, {D}. and {B}eniddir, {M}.{A}. and {E}vanno, {L}. and {P}etek, {S}ylvain and {D}ebitus, {C}{\'e}cile and {P}oupon, {E}.}, editor = {}, language = {{ENG}}, abstract = {{D}actylospongia metachromia and {D}actylospongia elegans collected from {F}rench {P}olynesia were studied with a particular focus on the variation of the diastereomeric ratio between ilimaquinone (4) and 5-epi-ilimaquinone (5). {M}ore than 100 samples, covering an area of 4100km2, were studied to try to clarify this intriguing issue. {N}uclear magnetic resonance appeared as the non-destructive, straightforward technique of choice for a relative quantitative study. {A} random distribution, unique at that point in nature, is observed and leads to biosynthetic considerations. {B}iological evaluation of both compounds was also performed and showed moderate discrepancies in cytotoxicity and apoptosis induction.}, keywords = {{POLYNESIE} {FRANCAISE} ; {PACIFIQUE}}, booktitle = {}, journal = {{A}ustralian {J}ournal of {C}hemistry}, volume = {70}, numero = {6}, pages = {743--750}, ISSN = {0004-9425}, year = {2017}, DOI = {10.1071/{CH}16455}, URL = {https://www.documentation.ird.fr/hor/fdi:010069903}, }