Scheme 1.
Preparation of MnPyC3A–BPEN (a) (7-Azabenzotriazol-1-yloxy)tripyrrolidinophosphonium Hexafluorophosphate (PyAOP), DMF, DIPEA, BPEN, (b) 3 M HCl, and (c) MnCl2, pH 6.5
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