cis-2-(phenylimino)-4,5-dimethyl-1,3-dioxolane

trans-7,8-dimethyl-trans-2,3-tetramethylene-1-phenyl-4,6,9-trioxa-1-azaspiro[4.4]nonane

(2R,3S)-2,3-butanediol

(2R,3R)-(+)-3-chloro-2-butanol

(2R,3S)-3-chlorobutan-2-ol