Methyl 5-amino-1-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-1H-1,2,3-triazole-4-carboxylate 5g

Methyl 5-amino-1-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-1H-1,2,3-triazole-4-carboxylate 5g