186581-53-3
重氮甲烷
+
2037-95-8
2H-1,3-苯并噁嗪-2,4(3H)-二酮
→
1672-01-1
3-methyl-1,3-benzoxazine-2,4-dione
598-94-7
N,N-二甲基脲
1441-87-8
水杨酰氯
1862-88-0
邻羟苄基甲基酰胺
79-37-8
草酰氯
90-02-8
2-羟基苯甲醛
7690-99-5
3,3'-dimethyl-3,4,3',4'-tetrahydro-4,4'-oxy-bis-benzo[e][1,3]oxazin-2-one
624-83-9
异氰酸甲酯
119-36-8
柳酸甲酯
37760-77-3
4-hydroxy-3-methyl-3,4-dihydro-benzo[e][1,3]oxazine-2-thione