134749-19-2
[(2-chloro-6,7-dimethoxyquinazolin-4-yl)amino]urea
+
109-89-7
二乙胺
→
~48%
134749-28-3
[[2-(diethylamino)-6,7-dimethoxyquinazolin-4-yl]amino]urea
27631-29-4
2,4-二氯-6,7-二甲氧基喹唑啉