3R,3aS)-7-bromo-3-(((tert-butyldimethylsilyl)oxy)methyl)-3a,4-dihydrobenzo[b]oxazolo[3,4-d][1,4]oxazin-1(3H)-one, China 3R,3aS)-7-bromo-3-(((tert-butyldimethylsilyl)oxy)methyl)-3a,4-dihydrobenzo[b]oxazolo[3,4-d][1,4]oxazin-1(3H)-one Selling, Selling China 3R,3aS)-7-bromo-3-(((tert-butyldimethylsilyl)oxy)methyl)-3a,4-dihydrobenzo[b]oxazolo[3,4-d][1,4]oxazin-1(3H)-one, Fujian Yuanda Pharmaceutical Technology Co.,Ltd.