for the following products
Boc-L-Ser(Bzl)-OH | Boc-Ser(Bzl)-OH | N-(tert-Butoxycarbonyl)-O-benzyl-L-serine | N-a-BOC-(O-Bzl)-L-Ser | N-alpha-tert-Butyloxycarbonyl-o-benzyl-L-serine | N-[(1,1-Dimethylethoxy)carbonyl]-o-(phenylmethyl)-L-serine and Boc-O-Benzyl-L-serine