A facile synthesis of optically active C2-symmetric 2,5-disubstituted pyrrolidines and other β,β′-dihydroxyamines
作者:Kevin Koh、Robert N. Ben、T. Durst
DOI:10.1016/0040-4039(94)85057-7
日期:1994.1
has been converted into the di-(R)-pantolactone ester of (S,S)-pyyrolidine-2,5-dicarboxylic acid in two steps. This compound serves as a precursor to C2-symmetric 2,5-disubstituted pyrrolidines. The synthesis of linear C2-symmetric β,β′-dihydroxyamines starting with α-bromophenylacetic acid and (S)-phenylglycine ethyl ester is also reported.
2,5-二溴己二酸已分两步转化为(S,S)-吡咯烷-2,5-二羧酸的二-(R)-泛内酯。该化合物用作C 2对称的2,5-二取代的吡咯烷的前体。还报道了以α-溴苯基乙酸和(S)-苯基甘氨酸乙酯为起始原料的线性C 2对称β,β'-二羟基胺的合成。