Synthesis, separation and configuration determination of diastereoisomers of (R,S)-1-methyl-3-[3-(aryl)-1,2,4-oxadiazol-5-yl] propyl 2,3-dideoxy-α-d-erythro-hex-2-enopyranosides
作者:Rajendra M. Srivastava、João R. de Freitas Filho、Maria José da Silva、Suzana C. de Melo Souto、Gene B. Carpenter、W.M. Faustino
DOI:10.1016/j.tet.2004.08.075
日期:2004.11
yielding all diastereoisomers in the pure form. One of them 5d was subjected to a single crystal X-ray analysis to determine the correct configuration at the asymmetric carbon atom of the aglycone. The methyl signals of the diastereomers helped to assign the configuration of each diastereoisomer. Molecular orbital calculations of 5d using the semi-empirical method (AM1) has been performed to compare its