| BE | Binding energy |
| BOC | tert-Butyloxycarbonyl |
| DCM | Dichloromethane |
| DIPEA | N,N-Diisopropylethylamine |
| DMAP | 4-(Dimethylamino)pyridine |
| DMF | N,N-Dimethylformamide |
| DMSO | Dimethyl sulfoxide |
| EDCI | 1-Ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride |
| GBPA | 4-(Guanidinobenzoyloxy)phenylacetic acid |
| SAR | Structure–activity relationship |
| SEM | Standard error on the mean |
| TFA | Trifluoroacetic acid/trifluoroacetate |
| THF | Tetrahydrofuran |
| TLC | Thin-layer chromatography |
| TMPRSS2 | Transmembrane serine protease 2 |