Chemistry of zamoranic acid. Part V Homochiral semisyntheses of active drimanes: pereniporin B (cas 16772-63-7), polygodial and warburganal
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Add time:07/18/2019 Source:sciencedirect.com
Methyl 14,15-dinor-13-oxo-7-labden-15-oate was obtained from acid zamoranic acid methyl ester. The former by photochemical cleavage yielded methyl 7,9(11)-drimadien-12-oate, whose chemoselective epoxidation afforded methyl 9α,11-epoxy-7-drimen-12-oate, which is the key synthetic precursor for pereniporin B, polygodial and warbuganal.
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