Stereoselective Syntheses of (E)-α,β-Dehydroamino Acids and (E)-α,β-Dehydropeptides by Stereospecific Dehydration with 1-Ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDC) - Sai, Hiroshi; Ogiku, Tsuyoshi; Ohmizu, Hiroshi (Synthesis, 2003)