(4R,5S)-methyl 5-<(tert-butyldimethylsilyl)oxy>-4-hydroxy-2-hexynoate

(4R,5R,6S)-5-<(triethylsilyl)oxy>-4-<(methoxycarbonyl)methyl>-6-methylperhydro-1,3-oxazin-2-one

3,6-heptadien-2-ol