5-Methyl-2-methylsulfanyl-4-(2,2,2-trifluoro-acetyl)-5,6-dihydro-4H-[1,3,4]thiadiazine-6-carboxylic acid ethyl ester

巴豆酰氯

乙基-3-氯-N-丁酸酯

3-丁烯酸乙酯