Methyl (R) -7- [3-amino-4- (2,4,5-trifluoro-phenyl) -butyryl] -3-trifluoromethyl-5,6,7,8- Imidazo [1,5-a] pyrazine-1-carboxylate, a process for its preparation and its use for the preparation of a medicament for the treatment of diabetes. Compound A
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