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

Chemical and Pharmaceutical Bulletin

Online ISSN : 1347-5223
Print ISSN : 0009-2363

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

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Volume 49 (2001) 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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