Citation: Lang Tao SHEN, Ting YANG, Hong Yu LI, Ji HU, Zhi Fu LUO. Synthesis of a Novel Chiral Trihydroxamic Acid Containing L-Pro-L-Ala-L-Ala-β-(HO)Ala-OMe Unit[J]. Chinese Chemical Letters, ;2006, 17(6): 751-754.
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An N-hydroxyl peptide unit of H-L-Pro-L-Ala-L-Ala-β-(BnO)Ala-OMe was synthesized by stepwise chain building method in solution. Then, based on nitrilotriacetic acid backbone and this N-hydroxyl peptide unit, a novel chiral tripodal ligand P as an analogue of desferrichrome, has been synthesized. In neutral pH, ligand P formed stable tri(hydroxamato)-iron(Ⅲ) complexes which showed a maximum absorption (εmax=2750 M-1 cm-1) at 422 nm in UV-Vis spectra. The characteristic absorption spectra are similar to those of natural trihydroxamate-type siderophores.
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Keywords:
- Hydroxamic acid,
- siderophores,
- tripodal ligand,
- chelators,
- iron
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