Indoleacetic acid falcarindiol ester (compound 1) has previously been isolated and purified using an SiO2 column and ODS HPLC from an acetone extract of Japanese ivy (Hedera rhombea). Here we investigate the differentiation-inducing activity of compound 1 using the human promyelocytic leukemia HL-60
A new C(17)-polyacetylene, named hederyne A (1), has been isolated from the MeOH extract of galls of Hedera rhombea Bean (Araliaceae), together with two known polyacetylenes, falcarindiol (2) and 11,12-dehydrofalcarinol (3). The structure elucidation of 1 was achieved by NMR, MS, IR, and UV
Polyacetylenes 1 and 2 were isolated from extracts of Japanese ivy (Hedera rhombea Bean) flower buds, with their chemical structures established on the basis of extensive 1D and 2D NMR and MS analyses. The absolute configurations of compounds 1 and 2 were determined by both chemical means, and by
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