72419-36-4
→
~76%
72418-38-3
2H-吡咯并[2,3-d]噻唑(9CI)
84331-98-6
2-acetylamino-4-chloro-5-ethoxycarbonylpyrimidine
344311-74-6
ethyl 2-acetamido-4-hydroxypyrimidine-5-carboxylate
15400-53-0
2-氨基-5-乙氧羰基-4-羟基嘧啶