Ester-enolate Claisen rearrangement of proline-containing α-acyloxy-α-vinylsilane. Synthesis of pyrrolidine-fused glutamate analogs
作者:Kazuhiko Sakaguchi、Masahiro Yamamoto、Yusuke Watanabe、Yasufumi Ohfune
DOI:10.1016/j.tetlet.2007.05.066
日期:2007.7
(S)-α-carboxymethyl-proline 3 and (S)-α-2-carboxyethyl-proline 4, using a chirality-transferring ester-enolate Claisen rearrangement of α-vinyl-α-acyloxysilane having a Boc-Pro as an acyloxy group, are described. The stereochemical outcome of the proline ester-derived ester-enolate Claisen rearrangement is also disclosed.
立体选择性合成吡咯烷的天冬氨酸和谷氨酸类似物,(S)-α-羧甲基-脯氨酸3和(S)-α-2-羧乙基-脯氨酸4,使用α-乙烯基的手性转移酯-烯醇酸克莱森重排描述了具有Boc-Pro作为酰氧基的-α-酰氧基硅烷。还公开了脯氨酸酯衍生的酯-烯酸酯Claisen重排的立体化学结果。