N-(Methoxycarbonyl)-L-valine (also known as MOC-L-Tert-Leucine) is an amino acid derivative typically used in the preparation of MK-8325, a silyl proline-containing NS5A inhibitor for the treatment of HCV.

 MK-8325: A silyl proline-containing NS5A inhibitor with pan-genotype activity for treatment of HCV. [1]

 Design, synthesis and identification of silicon-containing HCV NS5A inhibitors with pan-genotype activity. [2]

 References:

[1] A.G.Nair, et al, Bioorg. Med. Chem. Lett., 2018, 28(10), pp 1954-1957.

[2] B.Liu, et al, Eur. J. Med. Chem., 2018, 148, pp 95-105.