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标题：Preparative and Analytical Separations by High-Performance Liquid Chromatography and Capillary Electrophoresis of the Products from the Reaction of Insulin with exo-3, 6-Epoxy-1, 2, 3, 6-tetrahydrophthalic Anhydride
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作者：Kiyoshi ZAITSU ; Yoshitada KIMURA ; Yosuke OHKURA 等
期刊名称：Biological and Pharmaceutical Bulletin
印刷版ISSN：0918-6158
电子版ISSN：1347-5215
出版年度：1994
卷号：17
期号：6
页码：763-766
DOI：10.1248/bpb.17.763
出版社：The Pharmaceutical Society of Japan
摘要：An anion-exchange high-performance liquid chromatographic method using a TSKgel DEAE-2SW column and zone electrophoresis using a fused-silica capillary are described for the preparative and analytical separations of the products of the reaction between insulin and exo-3, 6-epoxy-1, 2, 3, 6-tetrahydrophthalic anhydride (ETPA), an amino protective reagent. Four stable products were identified having exo-3, 6-epoxy-1, 2, 3, 6-tetrahydrophthalyl group (s) on insulin at the i) Gly (A1), ii) Gly (A1) and Phe (B1), iii) Gly (A1) and Lys (B29), and iv) Gly (A1), Phe (B1) and Lys (B29) sites, together with four labile products produced by the reaction of ETPA with the non-amino groups of the stable products. The usefulness of capillary electrophoresis was demonstrated in the evaluation of the effect of the molar ratios of anhydride to insulin on the production of the insulin derivatives.
关键词：HPLC;capillary electrophoresis;insulin modified;amino blocking;dicarboxylic anhydride;exo-3, 6-epoxy-1, 2, 3, 6-tetrahydrophthalic anhydride