盐酸 、 N-(2-aminoethyl)-5-methyl-4-oxo-5-phenyl-4,5-dihydrofuran-2-carboxamide 、
全顺式二十碳五烯酸 、 在
silica gel 、 Ethyl acetate pentane 作用下,
以afforded N-(2-(5Z,8Z,11Z,14Z,17Z)-eicosa-5,8,11,14,17-pentaenamidoethyl)-5-methyl-4-oxo-5-phenyl-4,5-dihydrofuran-2-carboxamide (150 mg, 50%)的产率得到N-(2-(5Z,8Z,11Z,14Z,17Z)-eicosa-5,8,11,14,17-pentaenamidoethyl)-5-methyl-4-oxo-5-phenyl-4,5-dihydrofuran-2-carboxamide