(3S,4R,5S)-3-amino-4,5-dimethyldihydrofuran-2(3H)-one

(2R,4S,5R,6S)-5,6-dimethyl-2-phenyl-tetrahydro-2H-1,3-oxazin-4-carboxylic acid

(3S,4R,5S)-3-amino-4,5-dimethyl-3,4-dihydro-2(5H)-furanone hydrochloride

N-((3S,4R,5S)-4,5-dimethyl-2-oxotetrahydrofuran-3-yl)formamide