作者:Toshio Yamanaka、Mitsuru Ohkubo、Masayuki Kato、Yasufumi Kawamura、Akinori Nishi、Takahiro Hosokawa
DOI:10.1055/s-2005-863719
日期:——
Seven-, eight-, and nine-membered cyclic β-amino acids, precursors of platelet aggregation inhibitors, were synthesized for the first time starting from N-alkenyl amines and ethyl acrylate via ring-closing metathesis (RCM) as the key reaction. Synthesis of the corresponding enantiomerically pure β-amino acids was also accomplished in a similar manner using Evans’ asymmetric allylation.
首次合成了七、八和九元环β-氨基酸,这些氨基酸是血小板聚集抑制剂的前体,合成过程从N-烯基胺和乙烯基丙烯酸酯出发,关键反应为环闭合复分解反应(RCM)。还使用埃文斯的不对称烯基化方法,以类似的方式合成了相应的对映体纯β-氨基酸。