A practical synthesis of 2,2-difluoro-3-amino-propanoic acid (α,α-difluoro-β-alanine)
摘要:
Reformatsky reaction of ethyl bromodifluoroacetate with N,N-(dibenzyl)-1H-benzotriazolyl-1-methylamine gave fully protected alpha,alpha-difluoro-beta-alanine. Hydrogenolysis and hydrolysis furnished alpha,alpha-difluoro-beta-alanine. Further transformation into N-phthalimido-alpha,alpha-difluoro-beta-alanine was described. (C) 2003 Elsevier Science Ltd. All rights reserved.
The invention is related to anti-viral compounds, compositions containing such compounds, and therapeutic methods that include the administration of such compounds, as well as to processes and intermediates useful for preparing such compounds.
The invention is related to anti-viral compounds, compositions containing such compounds, and therapeutic methods that include the administration of such compounds, as well as to processes and intermediates useful for preparing such compounds.
The invention is related to anti-viral compounds of formula (I), compositions containing such compounds, and therapeutic methods that include the administration of such compounds, as well as to processes and intermediates useful for preparing such compounds.