C-Terminal Residue Optimization and Fragment Merging: Discovery of a Potent Peptide-Hybrid Inhibitor of Dengue Protease was written by Behnam, Mira A. M.;Nitsche, Christoph;Vechi, Sergio M.;Klein, Christian D.. And the article was included in ACS Medicinal Chemistry Letters in 2014.Electric Literature of C21H21NO4 The following contents are mentioned in the article:
Dengue virus protease is a promising target for the development of antiviral drugs. We describe here a two-step rational optimization that led to the discovery of the potent inhibitor 35 with nanomolar binding affinity at dengue protease serotype 2 (IC50 = 0.6 渭M, Ki = 0.4 渭M). First, a large number of natural and non-natural amino acids were screened at the C-terminal position of the previously reported, canonical peptide sequence (Cap-Arg-Lys-Nle-NH2). Compared to the reference compound 1 (Bz-Arg-Lys-Nle-NH2, IC50 = 13.3 渭M), a 4-fold higher inhibitory potential was observed with the incorporation of a C-terminal phenylglycine (compound 9, IC50 = 3.3 渭M). Second, we applied fragment merging of 9 with the previously reported thiazolidinedione peptide hybrid 33 (IC50 = 2.5 渭M). This approach led to the fusion of two inhibitor-fragments with micromolar affinity into a 20-fold more potent, competitive inhibitor of dengue protease. This study involved multiple reactions and reactants, such as (S)-1-(((9H-Fluoren-9-yl)methoxy)carbonyl)piperidine-2-carboxylic acid (cas: 86069-86-5Electric Literature of C21H21NO4).
(S)-1-(((9H-Fluoren-9-yl)methoxy)carbonyl)piperidine-2-carboxylic acid (cas: 86069-86-5) belongs to piperidine derivatives. The piperidine moiety constitutes an important building block for the synthesis of a variety of bioactive natural products, alkaloids and other drugs. The piperidine and polyhydroxylated indolizidine derivatives have shown to be promising 伪-glucosidase inhibitors. The former are analogs of DNJ with an improved 伪-glucosidase inhibitory profile than that of DNJ. Boisson et al.Electric Literature of C21H21NO4
Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem