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. Author manuscript; available in PMC: 2021 Apr 15.
Published in final edited form as: Org Biomol Chem. 2020 Apr 15;18(15):2877–2885. doi: 10.1039/d0ob00134a

Scheme 4.

Scheme 4

Effect of PNP on NR+ and its glycine conjugate, Gly-NR, 12a. A: Stability of Gly-NR in buffer (ESI†); B: phosphorolysis of NR by PNP in buffer; C: chemical hydrolysis of Gly-NR to NR followed by PNP-catalyzed released of NAM and formation of d-riboside 1-phosphate.