23090-18-8
2-氧代-2H-吡喃-5-甲酰氯
+
2916-68-9
2-(三甲硅基)乙醇
→
~65%
104213-65-2
2-trimethylsilylethyl 6-oxopyran-3-carboxylate
500-05-0
香豆酸