Open AccessDevelopment of a method for preparing octreotide derivative for diagnosis of neuroendocrine tumors
Author(s) -
Maria Larkina,
Ekaterina V. Podrezova,
Olga Bragina,
Е. А. Тагирова,
В. И. Чернов,
М. С. Юсубов,
Е. А. Нестеров,
В. С. Скуридин,
С. В. Кривощеков,
Е. А. Яновская,
Р. В. Гурто,
М. В. Белоусов
Publication year - 2019
Publication title -
bûlletenʹ sibirskoj mediciny
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.135
H-Index - 3
eISSN - 1819-3684
pISSN - 1682-0363
DOI - 10.20538/1682-0363-2019-3-72-80
Subject(s) - octreotide , chelation , chemistry , somatostatin , derivative (finance) , neuroendocrine tumors , high performance liquid chromatography , residue (chemistry) , amino acid , chromatography , biochemistry , organic chemistry , medicine , financial economics , economics
Currently the development of technologies for labeling somatostatin with technetium-99m for diagnosing radionuclide neuroendocrine tumors is under way. Somatostatin analogues are binded with technetium99m only by the preliminary addition of a chelating agent. Therefore, it is important to develop a method for preparation of an octreotide derivative by modifying octreotide with precursors: ligands with high chelating ability for its tight binding with technetium-99m. ω-Bis(pyridin-2-ylmethyl)amino)aliphatic acids can be used successfully as such precursors. The purpose of the study was to develop a method for obtaining a new octreotide derivative for diagnosing neuroendocrine tumors. Materials and methods . The somatostatin octreotide analogue was used as the object of the study; succinimid-1-yl 6-(bis(pyridin-2-ylmethyl)amino)hexanoate was used as a chelating agent. Methods of high performance liquid chromatography and mass spectrometry were used to separate and analyze the synthesized compounds. Results . A method to produce an original octreotide derivative using a succinimid-1-yl 6-(bis(pyridin2-ylmethyl)amino)hexanoate as a chelating agent was proposed. The conditions of analytical and semipreparative HPLC for the analysis and purification of the active octreotide derivative (a monosubstituted derivative of the amino acid residue of D-phenylalanine) were suggested. Conclusion . The synthesized derivative of octreotide has a chelating center for strong binding to technetium-99m in its structure, which can be useful for diagnosing neuroendocrine tumors.