Crude 6-[D-2-(D-2-amino -3-N-methylcarbamoyl- propionamido) -2-p-hydroxyphenylacetamido]penicillanic acid can be purified by the steps of:
(A) contacting an aqueous solution of 6-[D-2-(D-2-amino-3-methylcarbamoyl-propionamido) -2-p-hydroxyphenylacetamido]-penicillanic acid with a nonpolar, macroporous styrene-divinylbenzyle copolymer adsorption resin to adsorb 6-[D-2-(D-2-amino-3-N -methylcarmaboyi-propionamido)-2-p -hydroxyphenylacetamido]penicillanic acid on the resin,
(B) eluting the adsorbed 6-[D-2-(D-2-amino-3-N -methylcarbamoyl-propionamido)-2-p -hydroxyphenylacetamido)penicillanic acid with water or a mixture of water and a water-miscible organic solvent, and then
(C) isolating pure 6-[D-2-(D-2-amino-3-N-methylcarbamoyl-propionamido)-2-p-hydroxyphenyl- acetamido]penicillanic acid from the eluates.
粗 6-[D-2-(D-2-
氨基-3-N-甲基
氨基甲酰-丙酰
氨基)-2-对羟基苯乙酰胺基]青霉烷酸可通过以下步骤纯化:
(A) 将 6-[D-2-(D-2-
氨基-3-甲基
氨基甲酰-丙酰
氨基) -2-对羟基苯乙酰胺基]-青霉烷酸的
水溶液与非极性的大孔
苯乙烯-二
乙烯基树脂接触、大孔
苯乙烯-二
乙烯基苄基共聚物吸附
树脂,将 6-[D-2-(D-2-
氨基-3-N-甲基
氨基甲酰丙酰
氨基)-2-对羟基苯乙酰胺基]青霉烷酸吸附在
树脂上、
(B) 用
水或
水和
水混溶有机溶剂的混合物洗脱吸附的 6-[D-2-(D-2-
氨基-3-N-甲基
氨基甲酰丙酰胺基)-2-对羟基苯乙酰胺基]青霉烷酸,然后
(C) 从洗脱液中分离出纯的 6-[D-2-(D-2-
氨基-3-N-甲基
氨基甲酰基丙酰
氨基)-2-对羟基苯乙酰胺基]青霉烷酸。