1H-NMR	Proton nuclear magnetic resonance
5pHSA	5-(p-hydroxybenzoyl) shikimic acid
13C-NMR	Carbon-13 nuclear magnetic resonance
AMR	Antimicrobial resistance
ATCC	American Type Culture Collection
CLSI	Clinical and Laboratory Standards Institute
COSY	Correlation spectroscopy
CRAB	Carbapenem-resistant Acinetobacter baumannii
CRE	Carbapenem-resistant Enterobacterales
d	Doublet
dd	Doublet of doublets
ddd	Doublet of doublets of doublets
δ	Chemical shift
EtOAc	Ethyl acetate
ESBL	Extended-spectrum beta-lactamase
HMBC	Heteronuclear multiple-bond correlation
HPLC	High-performance liquid chromatography
Hz	Hertz
J	Coupling constant
MIC	Minimum inhibitory concentration
MH	Mueller–Hinton broth
MRSA	Methicillin-resistant Staphylococcus aureus
MRSH	Methicillin-resistant Staphylococcus haemolyticus
MTT	3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazole bromide
MS-EI	Electron ionization mass spectrometry
nm	Nanometer
NMR	Nuclear magnetic resonance
PDA	Photodiode array detector
PG-A	ProcumGastrodin A
ppm	Parts per million
Rf	Retention factor
TFA	Trifluoroacetic acid
TLC	Thin-layer chromatography
tR	Retention time
TSA	Soy tryptone agar
UPLC	Ultra-performance liquid chromatography
UV	Ultraviolet radiation
UV-Vis	Ultraviolet–visible spectroscopy