Towards a versatile synthesis of kainoids I: Introduction of the C-3 and C-4 substituents
作者:Jack E. Baldwin、Samantha J. Bamford、Andrew M. Fryer、Martin P.W. Rudolph、Mark E. Wood
DOI:10.1016/s0040-4020(97)00190-7
日期:1997.4
The first stages in the synthesis of acromelic acid analogues from trans-4-hydroxy-L-proline are described. An enamine alkylation was used to stereospecifically introduce the C-3 substituent, Grignard addition to a ketone or Pd(0) catalysed cross-coupling procedures adding C-4 aryl substituents for further manipulation. A number of versatile intermediates were generated. (C) 1997 Elsevier Science Ltd.