Isolation and Structures of Two New Compounds from the Essential Oil of Brazilian Propolis

Toshihide KUSUMOTO; Tomofumi MIYAMOTO; Ryuichi HIGUCHI; Shima DOI; Hiroyuki SUGIMOTO; Hideo YAMADA

doi:10.1248/cpb.49.1207

Notes

Isolation and Structures of Two New Compounds from the Essential Oil of Brazilian Propolis

Toshihide KUSUMOTO, Tomofumi MIYAMOTO, Ryuichi HIGUCHI, Shima DOI, Hiroyuki SUGIMOTO, Hideo YAMADA

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Keywords: propolis, steam distillation, essential oil, 2,2-dimethyl-8-prenyl-6-vinylchromene, 2,6-diprenyl-4-vinylphenol

JOURNAL FREE ACCESS

2001 Volume 49 Issue 9 Pages 1207-1209

DOI https://doi.org/10.1248/cpb.49.1207

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Abstract

Two new and seven known compounds, including terpenoids and aromatic compounds, were isolated from the essential oil of Brazilian propolis. The structures of the new compounds were elucidated as 2, 2-dimethyl-8-prenyl-6-vinylchromene (1) and 2, 6-diprenyl-4-vinylphenol (2) on the basis of spectroscopic analyses.

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