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33846428515
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We used the angucyclinone numbering (see Scheme 1) throughout the text to facilitate reading
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33846417018
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This mechanistic proposal has been supported by semiempirical AM1 calculations see ref, 20b
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This mechanistic proposal has been supported by semiempirical AM1 calculations (see ref. [20b]).
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Configuration assignment was disclosed by NOE experiments
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Configuration assignment was disclosed by NOE experiments.
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