STRUCTURE OF METHYLPHEOPHORBIDE‐RCI*
- 1 May 1986
- journal article
- research article
- Published by Wiley in Photochemistry and Photobiology
- Vol. 43 (5) , 559-571
- https://doi.org/10.1111/j.1751-1097.1986.tb09535.x
Abstract
Abstract—The methanolic extract of the cyanobacterium (blue‐green alga)Spirulina geitlerihas been treated with methanolic acid to convert all chlorophyllous pigments to their methylpheophorbides. Fractionation of the latter from methylpheophorbideaby thin layer chromatography and high pressure liquid chromatography yielded methylpheophorbide‐RCI. Its structure has been determined as 132S‐hydroxy‐20‐chloro‐methylpheophorbideaby1H‐nuclear magnetic resonance, absorption and circular dichroism spectroscopy, mass spectrometry and by partial synthesis from chlorophylla. The pigment is isolated fromSpirulina geitleriirrespective of the use or omission of chlorinated substances during the isolation procedure.Keywords
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