O-(N-succinimidyl)-1,1,3,3-tetramethyluronium tetrafluoroborate-N-hydroxysuccinimide-CuCl2: a facile and reliable system for racemization-free coupling of peptides having a carboxy-terminal N-methylamino acid |
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| Authors: | Nishiyama Y Ishizuka S Mori T Kurita K |
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| Affiliation: | Department of Industrial Chemistry, Faculty of Engineering, Seikei University, Tokyo, Japan. |
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| Abstract: | Simultaneous use of N-hydroxysuccinimide (HOSu) and CuCl2 with a HOSu-based uronium coupling reagent, O-(N-succinimidyl)-1,1,3,3-tetramethyluronium tetrafluoroborate, has been found to eliminate the racemization of the carboxy-terminal N-methylamino acid residue during the segment condensation. |
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