104699-57-2
ethyl N-(6-oxo-6,9-dihydro-1H-purin-1-yl)formimidate
→
~90%
81375-77-1
1-amino-7H-purin-6-one
76808-69-0
(9ci)-5-氨基-1H-咪唑-4-羧酸肼
+
149-73-5
原甲酸三甲酯
~38%