75501-53-0
2-phenyl-2-(1,1,3,3-tetramethyl-1,3-dihydro-2H-inden-2-ylidene)acetic acid
→
~59%
59701-66-5
methyl 4-(2-hydroxy-5-methoxyphenyl)-4-oxobutanoate
67-56-1
甲醇
+
75501-54-1
4-(2-hydroxy-5-methoxyphenyl)-4-oxobutanoic acid