1-Deoxy-5-hydroxysphingolipids as New Anticancer Principles: An Efficient Procedure for Stereoselective Syntheses of 2-Amino-3,5-diols
作者:John M. Wiseman、Frank E. McDonald、Dennis C. Liotta
DOI:10.1021/ol050829o
日期:2005.7.1
[reaction: see text]. Enantioselective preparation of the linear homoallylic alcohol I allows efficient formation of the 2-amino-3,5-diol moiety present in several biologically active compounds, including 1-deoxy-5-hydroxysphingosine analogue IV, which has exhibited excellent biological activity against colon cancer. The conversion of I into IV involves a sequence of enantioselective epoxidation of
[反应:请参见文字]。线性均烯醇I的对映选择性制备使得可以有效形成存在于几种生物活性化合物中的2-氨基-3,5-二醇部分,包括1-脱氧-5-羟基鞘氨醇类似物IV,该化合物对结肠癌表现出优异的生物学活性。 。I到IV的转化涉及I的O-叔丁氧羰基衍生物的对映选择性环氧化的序列,然后II的区域选择性和立体特异性氧杂环化以在III中引入分化的氧。