Planta Med 2008; 74 - PB120
DOI: 10.1055/s-0028-1084465

Trans-4-methoxy-β-prolinebetaine, a new betaine from the red alga Solieria chordalis and its occurrence in some purified peptides

S Bondu 1, S Cerantola 2, N Kervarec 2, E Deslandes 1
  • 1Laboratoire d'Ecophysiologie et de Biotechnologie des Halophytes et des Algues Marines (LEBHAM EA3877), Institut Universitaire Européen de la Mer, Université de Bretagne Occidentale, Technopôle de Brest-Iroise, F-29280 Plouzané, France
  • 2Laboratoire de Résonance Magnétique Nucléaire, Université de Bretagne Occidentale, UFR Sciences et Techniques, Avenue Le Gorgeu, F-29285 Brest, France

A new betaine compound, the trans-4-methoxy-β-prolinebetaine (1) has been isolated from the red alga Solieria chordalis J. Agardh, C. Agardh (Gigartinales, Rhodophyta). The structure of this compound was elucidated on the basis of analyses by Nuclear Magnetic Resonance and Mass Spectroscopies and completes the β-polinebetaines series already described in algae (2: trans-4-Hydroxy-β-prolinebetaine) (3:β-prolinebetaine) [1,2,3,4]. The occurrence of this compound in some natural peptides from S.chordalis was also showed by 1H NMR Spectroscopy.

This new compound isolated from S.chordalis could be specific of this species and would be a chemotaxonomic marker.

(1)

(2)

(3)

References: 1. Blunden, G., et al. (1983) Phytochem. 22:293. 2. Blunden, G., et al. (1989)J. Appl. Phycol. 1:1.

3. Sciuto, S., et al. (1988)J. Nat. Prod. 51:322. 4. Sciuto, S., et al. (1988)J. Nat. Prod. 51:1017.