Cyclized 9,11-secosterol enol-ethers from the gorgonian Pseudopterogorgia americana.


Chemical investigation of the MeOH extract from the gorgonian Pseudopterogorgia americana afforded two rare sterols, ameristerenol A (1) and B (2), both 9,11-secosterols possesses a seven-membered cyclic enol-ether in ring C, and ameristerol A (3) is the first example of a naturally occurring 9,11-secosterol containing a gorgosterol side chain with a C-24… (More)
DOI: 10.1016/j.steroids.2017.06.008


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