Enantioselective Total Synthesis of Isoedunol and β-Araneosene Featuring Unconventional Strategy and Methodology
作者:Jason S. Kingsbury、E. J. Corey
DOI:10.1021/ja055137+
日期:2005.10.1
A newsynthetic strategy for the enantioselective synthesis of members of the dolabellane family of marine natural products has been demonstrated for the specific examples beta-araneosene and isoedunol (1 and 2, respectively) by the pathway outlined in Scheme 1. Key steps include (1) diastereoselective alkylation of Seebach's chiral lactate acetal (6) by the iodide derived from 5; (2) Kulinkovich ethylenation
Characterisation of three terpene synthases for β-barbatene, β-araneosene and nephthenol from social amoebae
作者:Jan Rinkel、Tobias G. Köllner、Feng Chen、Jeroen S. Dickschat
DOI:10.1039/c9cc07681f
日期:——
The products of three terpene synthases from two socialamoebae, Dictyostelium discoideum and Dictyostelium purpureum, were identified, showing sesquiterpene synthase activity for one and diterpene synthase activity for the other two enzymes. Site-directed mutagenesis experiments revealed the importance of a newly identfied highly conserved residue for catalytic activity. For one of the enzyme products