Figure 2.

Compounds mentioned in the present study. Note that the structure of 8-hydroxy-1,6-naphthyridine carboxamide, L-870,810 is presented both in trans and cis forms (the latter also referred to L-870,8125) as described in Refs [37] and [31], respectively. The structure of raltegravir/MK-0518 was retrieved from Ref. [54]. All other structures are available in the NCBI website [45].