762-765 Mangas Marin 1522:Mangas Marin
نویسندگان
چکیده
INTRODUCTION Guttiferae (Clusiaceae) is a family of mainly tropical plants that comprises about 40 genera and 1200 species most of which are woody. The plants of the family are generally characterized by the presence of latex in most of their tissue 1. Phytochemical investigations of C. rosea 2, C. nemorosa 3, and C. grandiflora 4 have revealed the presence of polyisoprenylated benzophenones in the fruits, roots, and leaves. A large number of polyisoprenylated benzophenone derivates with bicyclo-[3.3.1]-nonane-2, 4, 9-trione systems have been isolated from this family. This ring requires that the substituents at C-1 and C-5 be equatorial, whereas, prenyl group at C-7 has been observed both axial and equatorial 5. In this investigation three polyprenylated benzophenones derivatives named propolone D, hyperibone B and garcinielliptone I were isolated from Clusia minor fruits.
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