Studies on polyethers produced by red algae.
Two novel squalene-derived triterpenes, spirodehydrovenustatriol (3) and 14-keto-dehydrothyrsiferol (4) were isolated from the red alga Laurencia viridis, together with two new and unusual C(17) terpenoids, adejen A (5) and B (6). These truncated structures possess structural similarities with other known squalene metabolites and their biogenetic origin has been proposed on the basis of an oxidative process of the squalene skeleton. All the structures were elucidated by extensive use of 2D NMR spectroscopic methods.
Cen-Pacheco
Francisco
F
Instituto Universitario de Bio-Orgánica Antonio González, Universidad de La Laguna, Astrofísico Francisco Sánchez 2, 38206 La Laguna, Tenerife, Spain.
Nordström
Laurette
L
Souto
María Luisa
ML
Martín
Manuel Norte
MN
Fernández
José Javier
JJ
Daranas
Antonio Hernández
AH
D044722:Laurencia / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D010084:Oxidation-Reduction; D013030:Spain; D013729:Terpenes / Q000737:chemistry / Q000302:isolation & purification*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
C551505:14-keto-dehydrothyrsiferol; D013729:Terpenes; D014315:Triterpenes; C551504:spirodehydrovenustatriol