4-Hydroxy-1,1′-bis[(S)-1-phenylethyl]-5,5′,6,6′-tetrahydro-3,4′-bipyridine-2,2′(1H,1′H)-dione - Romero, Nancy; Gnecco, Dino; Terán, Joel; Bernès, Sylvain (Wiley-Blackwell, 2013)