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As the common precursor for the efficient preparation of these bioactive molecules, we chose (+)\u20103,4\u2010dihydro\u2010\u03b3\u2010ionone (<jats:bold>1<\/jats:bold>), a natural compound present in minor quantities in ambergris and in the plant <jats:italic>Bellardia trixago<\/jats:italic>. Thus, we report herein the enantioselective synthesis of siccanochromene F (<jats:bold>2<\/jats:bold>), metachromins U (<jats:bold>3<\/jats:bold>) and V (<jats:bold>4<\/jats:bold>), and bicyclic squalene derivative <jats:bold>5<\/jats:bold> as well as the formal syntheses of ambrein (<jats:bold>6<\/jats:bold>), phenazinomycin (<jats:bold>7<\/jats:bold>), and (\u2013)\u2010siccanin (<jats:bold>8<\/jats:bold>).<\/jats:p>","DOI":"10.1002\/ejoc.201500208","type":"journal-article","created":{"date-parts":[[2015,4,16]],"date-time":"2015-04-16T03:51:33Z","timestamp":1429156293000},"page":"3266-3273","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Collective Synthesis of Natural Products Sharing the Dihydro\u2010\u03b3\u2010Ionone Core"],"prefix":"10.1002","volume":"2015","author":[{"given":"Alexis","family":"Castillo","sequence":"first","affiliation":[]},{"given":"Lucia","family":"Silva","sequence":"additional","affiliation":[]},{"given":"David","family":"Briones","sequence":"additional","affiliation":[]},{"given":"Jos\u00e9 F.","family":"Qu\u00edlez del Moral","sequence":"additional","affiliation":[]},{"given":"Alejandro F.","family":"Barrero","sequence":"additional","affiliation":[]}],"member":"311","published-online":{"date-parts":[[2015,4,16]]},"reference":[{"key":"e_1_2_6_1_2","unstructured":"\u00a0"},{"key":"e_1_2_6_2_2","doi-asserted-by":"publisher","DOI":"10.1038\/nature10232"},{"key":"e_1_2_6_3_2","doi-asserted-by":"publisher","DOI":"10.1002\/chem.201203467"},{"journal-title":"J. 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