摘要:
Several alpha-phenyl-1-(R)-(-)-piperidineacetic esters 3(a-e), were obtained in pure enantiomeric form by condensing (R)-(-)-alpha-phenylglycine esters 2(a-e) with 1,5-dibromopentane. Similarly, (R)-(-)-alpha-phenylglycine esters, 2(a-e), were prepared from (R)-(-)-alpha-phenylglycine 1 with high yields. (C) 1997 Published by Elsevier Science Ltd.