[(5-tert-Butyldimethylsilyloxy-4-oxo-4H-pyran-2-yl)methyl]amine

2-Allyl-2-[5-(tert-butyl-dimethyl-silanyloxy)-4-oxo-4H-pyran-2-ylmethyl]-malonic acid diethyl ester

diethyl (1S,5S,7R)-9-tert-butyldimethylsilyloxy-8-oxo-11-oxatricyclo[5.3.1.01,5]undec-9-ene-3,3-dicarboxylate

diethyl 2-[(5-tert-butyldimethylsilyloxy-4-oxo-4H-2-pyranyl)methyl]-2-[(2E,RS)-3-p-tolylsulfinyl-2-propenyl]malonate

diethyl 2-[(5-tert-butyldimethylsilyloxy-4-oxo-4H-2-pyranyl)methyl]-2-[(RS)-2-p-tolylsulfinyl-2-propenyl]malonate