Enantiodivergent total synthesis of naturally occurring trans-2-butyl-5-pentylpyrrolidine
作者:Nobuo Machinaga、Chihim Kibayashi
DOI:10.1016/s0040-4039(00)94464-2
日期:1990.1
The enantiodivergent total synthesis of (+)-(2S,5S)- and (−)-(2R,SR)-trans-2-butyl-5-pentylpyrrolidines was effected from the C2 symmetric (S,S)- and (R,R)-diepoxides, respectively, both prepared from Dmannitol, by a sequence involving stereo-defined ring construction of the unsymmetrical trans-2,5-dialkylpyrrolidine via the cyclic sulfate as a key step.
(+)-(2 S,5 S)-和(-)-(2 R,S R)-反式-2-丁基-5-戊基吡咯烷的对映体总合成是由C 2对称的(S,S分别由D甘露醇制备的)-和(R,R)-二环氧化合物是通过涉及经由环硫酸盐的不对称反式-2,5-二烷基吡咯烷的立体定义的环结构的序列作为关键步骤的。