作者:Sang-sup Jew、Kyung-hoi Cha、Sang-deog Kang、Yun-hee Woo、Hyung-ook Kim、Hyeung-geun Park
DOI:10.3987/com-98-s(h)109
日期:——
Asymmetric bromolactamization using (S)-(-)-N-methoxy-2-pyrrolidine carboxamide (4) as a chiral auxiliary was performed successfully. The seven membered bromolactam obtained by asymmetric bromolactamization was converted to enantiomerically pure 3(S)-amino-2(R)-methylbutanoic acid (10).