AI Article Synopsis

  • Methyl tortuoate D was isolated from the soft coral Sarcophyton tortuosum along with five other related bis-cembranoids.
  • The structure of methyl tortuoate D was revised based on detailed nuclear magnetic resonance analysis and literature comparison.
  • Lobophytone K, isolated from another coral species, was identified as the same compound as methyl tortuoate D, and its absolute configuration was determined using electronic circular dichroism.

Article Abstract

Methyl tortuoate D (1), together with five other known related bis-cembranoids, was isolated from Hainan soft coral Sarcophyton tortuosum. The structure of methyl tortuoate D (1a), firstly isolated and reported by Li et al. from the title organism, was corrected as 1 by an extensive analysis of its one-dimensional and two-dimensional nuclear magnetic resonance data and by comparison with those reported in the literature. In addition, lobophytone K (1b), recently isolated from Hainan soft coral Lobophytum pauciflorum by Lin et al., was proved to be the same compound as 1 and 1a. The absolute configuration of 1 was determined by comparing its electronic circular dichroism curve with that of co-occurring ximaolide A (2).

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http://dx.doi.org/10.1080/10286020.2013.787988DOI Listing

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Article Synopsis
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  • Lobophytone K, isolated from another coral species, was identified as the same compound as methyl tortuoate D, and its absolute configuration was determined using electronic circular dichroism.
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