3D6Q:
reference: Morpholino, Piperidino, and Pyrrolidino Derivatives of Pyrimidine Nucleosides as Inhibitors of Ribonuclease A: Synthesis, Biochemical, and Crystallographic Evaluation (#) (,) (dagger)., Samanta A, Leonidas DD, Dasgupta S, Pathak T, Zographos SE, Oikonomakos NG, J Med Chem. 2009 Jan 27. PMID: 19173562

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