908299-00-3

Upstream product

• 908298-99-7 (2S,5S)-(6-ethoxy-5-isopropyl-2-methyl-3-oxo-2,3,4,5-tetrahydro-pyrazin-2-yl)-acetic acid 
• 100-39-0 benzyl bromide 
• 908298-98-6 (2S,5S)-(4-benzyl-6-ethoxy-5-isopropyl-2-methyl-3-oxo-2,3,4,5-tetrahydro-pyrazin-2-yl)-acetic acid 
• 908298-97-5 (2S,5S)-(4-benzyl-6-ethoxy-5-isopropyl-2-methyl-3-oxo-2,3,4,5-tetrahydro-pyrazin-2-yl)-acetic acid ethyl ester 
• 433735-03-6 (6S)-1-benzyl-5-ethoxy-3,6-dihydro-6-isopropylpyrazine-2-one 

Relevant academic research and scientific papers

Stereoselective synthesis of a new chiral synthon: a cyclic pseudodipeptide containing an aspartic acid derivative and l-valine

A simple stereoselective synthesis of cyclic synthons 4a,b and 10a,b, derived from an l-valine unit and an unnatural derivative of the aspartic acid, has been accomplished starting from the chiral synthon 1 and following the procedure already reported by