Synthesis of 2‐Hydroxy‐1,4‐oxazin‐3‐ones through Ring Transformation of 3‐Hydroxy‐4‐(1,2‐dihydroxyethyl)‐β‐lactams and a Study of Their Reactivity
Stereoselective Synthesis of cis-3,4-Disubstituted Piperidines through Ring Transformation of 2-(2-Mesyloxyethyl)azetidines
