摘要:
The stereospecific formation of 2-aryl-beta -methyl tryptamine derivatives 15 and 16 from chiral 4-chloro-1-(3,5-dimethylphenyl)-3-methylbutanones is described. These intermediates were further manipulated into the GnRH antagonists Ib and Ic in five steps. (C) 2001 Elsevier Science Ltd. All rights reserved.