Structure and configuration of the coumarins mogoltadone and mogoltadin
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Two new terpenoid coumarins — mogoltadone and mogoltadin — have been isolated from the roots ofFerula mogoltavica. Mogoltadone has the composition C24H28O4, [α] D 21 -41.7° (c 1.1; chloroform). On the basis of spectral characteristics, it has been shown that it is the ether of umbelliferone and 3-oxo-4,4,10-trimethyl-8-vinyldecalin-9-ylmethanol with the trans linkage of rings A and B and the equatorial orientation of the substituent at C9. Mogoltadin has the composition C24H30O4, [α] D 21 -55° (c 1.0; ethanol) and is the ether of umbelliferone and 3-hydroxy-4,4,10-trimethyl-8-vinyldecalin-9-ylmethanol with the trans linkage of rings A and B and the diequatorial arrangement of the substituents at C3 and C9.
KeywordsUmbelliferone Equatorial Orientation Sodium Tetrahydroborate Hydroxy Ketone Pyrone Ring
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