(S)-(+)-2-Phenylglycine amide → 6-Cyclopropylmethoxy-5-(3,3-difluoro-azetidin-1-yl)-pyrazine-2-carboxylic acid ((S)-carbamoyl-phenyl-methyl)-amide

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The title compound was synthesized in analogy to Example 15, using 6-cyclopropylmethoxy-5-(3,3-difluoro-azetidin-1-yl)-pyrazine-2-carboxylic acid (Example 8d, 100 mg, 0.35 mmol) and (S)-2-amino-2-phenyl-acetamide (CAN 6485-52-5, 52.6 mg, 0.53 mmol) as starting materials, and isolated (25 mg, 17.07%) as light brown solid; LC-MS (UV peak area, ESI) 98.31%, 418.0 (M+H).

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