15910-11-9
1,4-二乙酰-1,3-丁二烯
+
922-68-9
乙醛酸甲酯
→
~11%
34296-99-6
methyl (2R,3S,4S)-3,4-diacetyloxy-3,4-dihydro-2H-pyran-2-carboxylate
77824-27-2
methyl 1,4-di-O-acetyl-2,3-dideoxy-α-DL-erythro-hex-2-enopyranuronate