for the following products
(+/-)-Boc-alpha-Phosphonoglycine trimethyl ester | Boc-alpha-phosphonoglycine trimethyl ester | Methyl 2-[(tert-butoxycarbonyl)amino]-2-(dimethoxyphosphoryl)acetate | N-(tert-Butoxycarbonyl)-alpha-phosphonoglycinetrimethyl ester and Methyl N-Boc-2-(dimethylphosphono)glycinate
