74-89-5
甲胺
+
49845-14-9
→
~82%
61369-36-6
methyl 3-amino-4-methyl-7,8-dihydro-6H-quinoxaline-2-carboxylate
33001-47-7
O-tosyl-isonitrosocyanacetate de methyle
670-80-4
1-吗啉基-1-环己烯