Total synthesis of (-)-norzoanthamine.

Angew Chem Int Ed Engl

Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda-shi, Chiba, Japan.

Published: March 2009

No bones about it: (-)-Norzoanthamine, a promising candidate for an anti-osteoporotic drug, was the target of a total synthesis (see scheme). The final bisaminal formation with AcOH/H(2)O gave the DEFG ring, while the cyclization precursor was prepared by installing the remaining bisaminal unit after oxidative cleavage of the cyclopentanol moiety.

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http://dx.doi.org/10.1002/anie.200804546DOI Listing

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