186581-53-3
重氮甲烷
+
114371-80-1
6,7,8-trihydroxychromen-2-one
→
108221-59-6
6,7-Dihydroxy-8-methoxy-2H-chromen-2-one
114371-81-2
(7,8-diacetyloxy-2-oxochromen-6-yl) acetate