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大孔吸附树脂吸附分离FK506的工艺研究

2014-11-24诸敏

上海医药 2014年21期

诸敏

摘 要 目的:研究并优化FK506提取工艺。方法:通过几种大孔吸附树脂的吸附容量及分离能力比较实验,筛选到一种吸附容量高又有分离能力的树脂;通过吸附等温线及柱分离实验,确定最佳吸附浓度、上样及洗脱流速等工艺参数。结果: FK506提取液通过HZ816树脂吸附分离掉杂质,中间体湿粉含量达到60.1%(折干含量81.3%),吸附分离总收率达87.1 %。结论:HZ816树脂可有效吸附分离FK506。

关键词 FK506 树脂 吸附

中图分类号:TQ460.64 文献标识码:A 文章编号:1006-1533(2014)21-0071-04

Study on the technology for the isolation and purification

of FK506 by macroporous resin

ZHU Min*

(Hangzhou Zhongmei Huadong Pharmaceutical Co. Ltd., Hangzhou 310011, China)

ABSTRACT Objective: To optimize the technology for the isolation and purification of FK506. Methods: A macroporous absorption resin with high adsorption and separation capability was selected through experiments based on its adsorption capability and separation ability. Process parameters such as the volume and the optimum adsorption concentration of sample and the elution flow were determined via adsorption isotherm and column separation experiments. Results: The content of the wet powder of FK506 intermediate was 60.1% (81.3% on dry content) through the adsorption of impurities from FK506 extracts by resin HZ816 with total yield of 87.1%. Conclusion: FK506 can be effectively separated and purified by macroporous resin HZ816.

KEY WORDS FK506; resin; adsorption

FK506(他克莫司)系新一代免疫抑制剂,是继环孢素之后的一个重大发现。通过体外、动物和临床研究证实,其剂量在低于环抱素10倍的情况下即可起到很好的免疫抑制作用,且毒副反应比环孢素小[1-2]。但是,在FK506的生产过程中,由于发酵液中有效组分单位较低,并有多个他克莫司类似物,包括FK520(即:子囊霉素)和2H-FK506(二氢他克莫司)等杂质,它们的结构与他克莫司极为相似[3]。并且,FK506 和FK506异构体Ⅰ及Ⅱ在溶剂中相互转化[4],导致分离难度大,提取收率低。为了提高产品质量、降低生产成本,对提取工艺作了进一步研究,本文主要研究采用树脂分离纯化FK506中间体的工艺技术。

材料与方法

材料与仪器

HZ816,HZ818,HZ820型大孔吸附树脂(上海华震树脂厂);X-5型大孔吸附树脂(天津南开大学树脂厂);FK506萃取脱色浓缩液(本公司自制);丙酮,去离子纯化水,乙酸乙酯,乙醇等均为分析纯;玻璃层析柱:45 mm ×1 000 mm;SHZ-3型循环水式真空泵(巩义市予华仪器有限责任公司);RE-201D旋转蒸发器(上海一凯仪器设备有限公司);W201B恒温水浴锅(上海申胜生物技术有限公司);……

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