Spectral Data of Two New Asymmetric Sesquiterpene Alcohols: (14R)-β-Oplopenol and (14S)-β-Oplopenol

Abstract

The epimeric sesquiterpene alcohols (14R)-β-oplopenol and (14S)-β-oplopenol were obtained by LiAlH4 reduction of β-oplopenone. The complete 1H- and 13C-NMR assignments of these two new sesquiterpene alcohols have been made using 1D and 2D NMR techniques, including COSY, NOESY, HSQC, HMBC experiments.

Natural sesquiterpenoids

“…These sesquiterpenes had been identified as components of the essential oil of Adenostyles briquetii. 170 Dendronobillins K-N 194-197 are four novel sesquiterpenes isolated from the stems of Dendrobium nobile. These compounds have copacamphane, picrotoxane and cyclocopacamphane skeleta.…”