ENT1inhibitor pharmacophore correlation and fit (A) and mapping of m-nitro-6-benzylthioinosine (B), dilazep (C), rabacfosidine (D), darunavir (E), GS-6620 (F), and GS-9667 (G) to this pharmacophore. Cyan features represent hydrogen bond donors, green features represent hydrogen bond acceptors, and gray features represent excluded volumes. HBA, hydrogen bond acceptor; RMS, root mean square.