Isolation and characterization of kallosin A,a novel rearranged pseudopterane diterpenoid from the Caribbean sea plume Pseudopterogorgia kallos (Bielschowsky) |
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Authors: | Marrero Jeffrey Rodríguez Abimael D Baran Peter Raptis Raphael G |
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Institution: | Department of Chemistry, University of Puerto Rico, P.O. Box 23346, U.P.R. Station, San Juan, PR 00931-3346, USA. |
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Abstract: | The Caribbean alcyonacean Pseudopterogorgia kallos is shown to contain a novel rearranged pseudopterane diterpene, kallosin A (1), possessing several unusual structural features. In addition to having two distinct 2(3H)- and 2(5H)-furanone moieties, kallosin A is based on a new carbon skeleton. The structural assignment of 1 was based mainly on 1D and 2D NMR spectral data and was further supported by accurate mass measurement and single-crystal X-ray diffraction analysis. |
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