S. Elghammarti et al., STUDIES ON PYRROLIDINONES - SYNTHESIS OF 1-[(N-ACETYLARYL-AMINO)METHYL]PYROGLUTAMIC ACID-DERIVATIVES, Journal of heterocyclic chemistry, 35(3), 1998, pp. 555-565
Pyroglutamic acid was transformed into 1-[(N-Acetylarylamino)methyl]py
roglutamic acid derivatives by using trimethylsilyl variations of the
Mannich reaction.