2(R)-methyl-3(S)-(benzoylamino)-γ-butyrolactone

2-phenyl-4(S)-<4(S)-methyl-3(R)-<(tert-butyldimethylsilyl)oxy>hex-5-en-2(S)-yl>-2-oxazoline

(S)-N-(5-oxotetrahydrofuran-3-yl)benzamide

2-phenyl-4(S)-<4(S)-methyl-3(R)-hydroxyhex-5-en-2(S)-yl>-2-oxazoline

(R)-2-((S)-2-Phenyl-4,5-dihydro-oxazol-4-yl)-propionaldehyde