上游原料
Triethyl orthoformate; 1-(Diethoxymethoxy)ethane; Diethoxymethyl ethyl ether5-Amino-4,6-dichloropyrimidine; 4,6-dichloro-5-pyrimidinylamine; 4,6-dichloro-5-pyrimidinamine5-amino-1-pentanol5-[(5-amino-6-chloro-4-pyrimidinyl)amino]-1-pentanol5-(6-chloro-9H-purin-9-yl)-1-pentanol9-(5-hydroxypentyl)-9H-purin-6-ol9-[5-[(chlorocarbonyl)oxy]pentyl]-6-hydroxy-9H-purineArginine; 2-Amino-5-guanidinopentanoic acid