- Synthetic Method of Tenilsetam
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Tenilsetam (CAS NO.: ), with its systematic name of , 3-(2-thienyl)-, could be produced through many synthetic methods.
Following is one of the synthesis routes:
Ethyl 2-(2-thienyl)glyoxylate (I) is cyclized with ethylenediamine (II) in refluxing ethanol to produce 3-(2-thienyl)-1,2,5,6-tetrahydropyrazin-2-one (III), which is reduced with H2 over Raney (RaNi) in hot ethanol at 50 bar.
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