Synthetic studies on prehispanolone (cas 132922-55-5) and 14,15-dihydroprehispanolone (cas 132922-55-5)☆

Add time:08/28/2019    Source:sciencedirect.com

Employing an intramolecular Michael addition as a pivotal step, butenolide 5, furans 6 and 7 have been converted to dioxaspiro compounds 8, 9, 10 and 11, whose heterocyclic frameworks constitute important structural units of prehispanolone (cas 132922-55-5) (2) as well as 14,15-dihydroprehispanolones (3) and (4), respectively. Hispanolone (1) was converted to 2, 3 and 4 by utilizing a similar strategy.

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