90-02-8
2-羟基苯甲醛
+
107-13-1
丙烯腈
→
62644-79-5
4-hydroxy-3,4-dihydro-2H-chromene-3-carbonitrile
36044-49-2
methyl 2H-chromene-3-carboxylate
22649-28-1
2H-苯并吡喃-3-甲酸