| Enantiomerically Pure Tetrahydropyrimidinones in Asymmetric ... 
 [Hopkins, Stephanie A.; Ritsema, Todd A.; Konopelski, Joseph P. Journal of Organic Chemistry, 1999 , vol. 64, # 21 p. 7885 - 7889]
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                            | Enantioselektive α??Alkylierung von Asparagin??und Glutamins... 
 [Aebi, Johannes D.; Seebach, Dieter Helvetica Chimica Acta, 1985 , vol. 68, p. 1507 - 1518]
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                            | Efficient Enantioselective Synthesis of Cα-Methyl Aspartic A... 
 [Sasaki, Hiroshi; Carreira, Erick M. Synthesis, 2000 , # 1 p. 135 - 138]
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                            | α-Alkylation of (S)-Asparagine with Self-Regeneration of the... 
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                            | Asymmetric synthesis of α-alkylated α-amino acids via Schmid... 
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