Pulicaria crispa

In an attempt to induce a rearrangement to give the pseudoguaianolide (621) the epoxy-alcohol (620) was treated with boron trifluoride etherate. An X-ray analysis, however, has shown that one of the major products is the fluoro-alcohol (622). ° A number of new xanthanolides, grafininacetate (623), desacetyl-xanthanol (624), and xanthanolacetate (625) have been isolated from Pulicaria crispa. These compounds co-occur with the unusual seco-eudesmane sesqui-terpenoid, secocrispiolide (626). 

The leaves of Cassia mimosoides, C. nigricans, Pulicaria crispa, Senecio... 

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See also in sourсe #XX -- [ ]

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