for the following products
3-(N-tert-Butoxycarbonyl-N-methylamino)propylamine | N-(3-Aminopropyl)-N-methyl-carbamic acid 1,1-dimethylethyl ester | tert-Butyl N-(3-aminopropyl)-N-methylcarbamate and N-(3-Aminopropyl)-N-methylcarbamic acid tert-butyl ester