Isolation and structure determination of the cembranoid eunicin from a new genus of octocoral, Pseud
Isolation and structure determination of the cembranoid eunicin from a new genus of octocoral, Pseudoplexaura.
The known cembranoid diterpene eunicin (1) was isolated from a new genus of octocoral, Pseudoplexaura, collected in the Caribbean. The complete assignment of the (13)C and (1)H NMR spectra, including differentiation of pro-R and pro-S hydrogens and elucidation of all J values, was accomplished with the aid of TOCSY, HSQC, and HMBC data, and a consideration of three low-energy conformations using SYBYL.
Sponholtz WR, Bianco MA, Gribble GW.
Department of Science, Cushing Academy, Ashburnham, MA 01430, USA.