(R)-5-azido-2-ethylpentanal

(R)-4-ethyl-5-<(tert-butyldimethylsilyl)oxy>pentanal

(R)-5-[(tert-butyldiphenylsilyl)oxy]-4-ethyl-1-pentanol

(R)-1-[(tert-butyldiphenylsilyl)oxy]-2-ethyl-5-iodopentane

Methanesulfonic acid (R)-4-(tert-butyl-diphenyl-silanyloxymethyl)-hexyl ester