855654-96-5
4-hydroxy-6-methoxy-2-oxo-2H-pyran-3-carboxylic acid methyl ester
74497-02-2
621-10-3
N,N'-二(苯基)丙二酰胺

参考文献

Staudinger; Becker Chemische Berichte, 1917 , vol. 50, p. 1023

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