Chemoenzymatic synthesis of (S)-eicos-(4E)-en-1-yn-3-ol, the cytotoxic principle of the marine sponge, Cribrochalina vasculum
作者:Anubha Sharma、Subrata Chattopadhyay
DOI:10.1016/s0957-4166(98)00266-3
日期:1998.8
An efficient enantioselective synthesis of the title compound I was developed from the versatile chiron 1-tert-butyldimethylsilylpenta-1,4-diyn-3-ol 2. The chiron, in turn, was prepared via a combination of lipase catalyzed acylation–alcoholysis protocol. Protection of its hydroxy group, alkylation with a suitable bromide and subsequent functionalization gave (S)-I with high enantiomeric purity.
从通用的Chiron 1-叔丁基二甲基甲硅烷基戊-1,4-diyn-3-ol 2开发了标题化合物I的有效对映选择性合成。反过来,Chiron是通过脂肪酶催化的酰化-醇解方案的组合而制备的。其羟基团的保护,烷基化与合适的溴化和随后的官能化,得到(小号) -我具有高对映体纯度。