Table 2.

Exploration of Diverse N-terminal Fragments and the Discovery of the Benzamide Fragment

#	R	IC50 (μM) [a] (10%DMSO)
16		38 ± 3
17		330 ± 10
18		>1000
19		>1000
20		280 ± 40
21		>1000
22		372 ± 7
23		300 ± 50
24		52 ± 2

^[a]IC₅₀ values determined by the displacement of FAM-DEALA-Hyp-YIPD from VCB, with SEM reported.

^[b]Literature value.^[18]