6-(5-(t-butyldimethylsilyloxy)pentan-2-yl)-4-hydroxy-3-15 propionyl-2-H-pyran-2-one

4-(5-hydroxy-2-oxo-3-propionyl-2-H-pyran-6-yl)pentanol

4-(5-hydroxy-2-oxo-3-propionyl-2-H-pyran-6-yl)pentanal

(E)-methyl-6-(4-hydroxy-2-oxo-3-propionyl-2-H-pyran-6-yl)hept-2-enoate

(E)-ethyl 7,7,7-trifluoro-3-methylhept-2-enoate