175873-10-6Relevant articles and documents
Process for the preparation of amidino phenyl pyrrolidine β-alanine urea analogs
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, (2008/06/13)
The invention herein is directed to a process for producing a lactam of the formula STR1 from a methionine analog of the formula STR2 by treating the methionine analog with trimethylsulfonium halide or trimethylsulfoxonium halide in the presence of a base in a suitable aprotic solvent. The invention herein is further directed to the preparation of amidinophenyl pyrrolidinyl β-alanine urea analogs using such methionine and lactam compounds as intermediates, which β-alanine urea analogs are useful as antithrombotics.