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. 2024 Jan 9;15(2):239–249. doi: 10.1021/acsmedchemlett.3c00460

Table 2. Evaluation of the Antibacterial Activity of Lipoguanidines.

compd MIC (μg/mL)
Gram-positive
Gram-negative
S. aureus
E. faecalis
E. faecium K. pneumoniae
A. baumannii
P. aeruginosa
E. coli
MSSA ATCC 9144 MRSA NCTC 13616 MRSA USA 300 MRSA SA 1199B VSE NCTC 775 VRE NCTC 12201 VRE NCTC 12204 NCTC 13368 M6 AYE ATCC 17978 PAO1 NCTC 13437 NCTC 12923
5a 4 4 2 4 4 4 4 128 8 16 8 128 >128 8
5b 4 4 2 4 4–8 2 4 32–128 >128 32 8–16 >128 >128 16
5c 8 16 8 16 32 16 16 16 8 8 8 16 >64 4
5d 2–4 4 2–4 4 8 4 4 32 16 16 8 >128 >128 8
5e 8 8 4 8 8 8 8 >128 128 128 128 >128 >128 32
5f 128 >128 128 >128 >128 >128 >128 >128 >128 >128 >128 >128 >128 128
5g 16 32 32 32 128 >128 >128 >128 >128 >128 >128 >128 >128 128
5h 2 4 4 4 8 16 16 >128 >128 >128 128 >128 64 16
5i 2 2–4 2 4 2 2 2 >128 8–64 32→128 4–8 >128 >128 32–64
5j 8 4 2 4 2 2 2 >128 >128 128 16–32 >128 >128 >128
6 64 >64 64 32–64 64 >64 32 >128 >128 >128 128 >128 >128 128
8a 4 2 2 2 2 2 2 128 16 32 8 128 >128 8
8b 4–8 4–8 2–4 4–8 4–8 4 4 128 64 16–64 16 >128 >128 32
8c 4 4 4 4 8 8 8 >64 32 >64 32 64 64 8
8d 2–4 4 2 2–4 4 4 2 32–64 16–32 16–64 4–8 >128 >128 8
8e NDa NDa NDa NDa NDa NDa NDa >128 >128 >128 >128 64 >128 64
8f 128 >128 128 >128 >128 >128 >128 >128 >128 >128 >128 >128 >128 >128
10 8 4 4 4 4 4 4 >128 >128 128 64 64 32–64 8–16
agmatine NDa NDa NDa NDa NDa NDa NDa >128 >128 >128 >128 >128 >128 >128
a

Not determined.