Yasuo Kimura, K. Tani, Aiko Kojima
1996
Citations
0
Influential Citations
45
Citations
Journal
Phytochemistry
Abstract
Abstract Cyclo-( l -tryptophyl- l -phenylalanyl) was isolated from an unidentified Penicillium sp. The absolute configuration of the compound was confirmed to be S , S at C-11 and C-14 by means of the comparison of the CD spectrum with that of the synthetic compound synthesized from l -tryptophan and l -phenylalanine. Cyclo-( l -try- l -Phe) and its components, l -tryptophan and l -phenylalanine, exhibited different biological activities against the tested plants of pine and tea pollen, lettuce, cress and rice seeds. Therefore, the biological activities of cyclo-( l -Trp- l -Phe) result from the intact compound and not the degradation to l -tryptophan and l -phenylalanine.