(+)-tricycloclavulone having a unique tricyclo[5,3,0,01,4]decane skeleton and six chiral centers was achieved in a highly stereoselective manner. It includes a catalytic enantioselective [2+2]-cycloaddition reaction using novel chiral copper catalyst, extremely effecting an intramolecular ester transfer reaction, and asymmetric reduction of the carbonyl group on the alpha-chain using Noyori's chiral ruthenium catalyst
以高度立体选择性的方式实现了具有独特
三环[5,3,0,01,4]
癸烷骨架和六个手性中心的(+)-
三环克拉维酮的首次全合成。它包括使用新型手性
铜催化剂的催化对映选择性 [2+2]-环加成反应,极大地影响分子内酯转移反应,以及使用 Noyori 的手性
钌催化剂不对称还原 α 链上的羰基。