2-(2-Benzyloxy-ethyl)-3-ethyl-6-methoxy-5-methyl-pyran-4-one

6-(2-Benzyloxy-ethyl)-5-ethyl-4-hydroxy-3-methyl-pyran-2-one

2-[2-(tert-Butyl-dimethyl-silanyloxy)-1-hydroxy-ethyl]-3-ethyl-6-methoxy-5-methyl-pyran-4-one

2-(1-azido-2-((tert-butyldimethylsilyl)oxy)ethyl)-3-ethyl-6-methoxy-5-methyl-4H-pyran-4-one

2-((tert-butyldimethylsilyl)oxy)-1-(3-ethyl-6-methoxy-5-methyl-4-oxo-4H-pyran-2-yl)ethyl methanesulfonate