New Long-chain Hydroxy Acids from Grevillea decora
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چکیده
In addition to the w-5 olefinic acids found in other Grevillea species, about 10% ?f the acyl groups of G. decOI'a seed oil contain a hydroxy group and an w-5 double bond. Th: chamlengths of these acids are from C22 to C30 , with the largest concentration at the C26 and C28 chamle.ngths. ~le hydroxy group is located on odd carbons from carbon-5 through carbon-l3. These a~lds prevIously .were ~nknown in nature. The most abundant of these are 7-hydroxy·ds-17-docoseJ?-Olc, 7-hydroxy-ez.s-19tetracosenoic, 9-hydroxy-eis-19-tetracosenoic, 9-hydroxy-eis-?1-hexacose.nolc, 11-hydroxy-ezs-21hexacosenoic, and 13-hydroxy-cis-23-octacosenoic acids. The oil also contams the largest kno\\n concentration of the unoxygenated C26 and C28 w-5 monoenes. Lipids 20:373-377, 1985.
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