for the following products
Fmoc-beta-HoSer(tBu)-OH | Fmoc-L-beta-Homoserine(otbu) | Fmoc-L-beta-HSer(tBu)-OH | Fmoc-O-tert-Butyl-L-beta-homoserine | N-beta-(9-Fluorenylmethyloxycarbonyl)-O-tert-butyl-L-homoserine and (R)-N-(9-Fluorenylmethoxycarbonyl)-3-amino-R-tert-butoxy-butanoic acid
