... Tetrahedron. Volume 61, Issue 8, 21 February 2005, Pages 2003–2010. ... Taking into account the multi-step synthesis of (+)-albicanol 8 and the low yield of the above Wittig reaction, the synthesis of (+)-coronarin 5 from natural (−)-sclareol 10, through (−)-γ-bicyclohomofarnesal 11 ...