上游原料
Ethyl 2-chloro-2-oxoacetate; Ethyl oxalyl chloride2,2,7,7-tetramethyl-4-[(trimethylsilyl)oxy]-3,6-dioxa-2,7-disila-4-octene; 1,2-bis[(trimethylsilyl)oxy]vinyl trimethylsilyl ether; TRIS(TRIMETHYLSILYLOXY)ETHYLENE2-phenylacetyl chloride；Phenylacetyl chloride;Phenacetyl chloride;Benzeneacetyl chloride2-phenylethaneperoxoic acidethyl 2-oxo-2-[(2-phenylacetyl)peroxy]acetate3-hydroxy-4-phenyl-2H-pyran-2,5(6H)-dione1-Methylindole-3-carboxaldehyde; 1-Methyl-1H-indole-3-carbaldehyde; 1-Methylindole-3-carbaldehyde3-hydroxy-6-[(Z)-(3-methyl-3H-benzimidazol-1-yl)methylidene]-4-phenyl-2H-pyran-2,5-dione
