Table 1.

List of abbreviations.

Ada	adamantyl
Alloc	alloxycarbonyl
BNCT	boron neutron capture therapy
Boc	tert-butoxycarbonyl
Cbz	benzyloxycarbonyl
CCK	cholecystokinin
DAST	diethylaminosulfur trifluoride
DIBAL	diisobutylaluminium hydride
DMB	dimethoxybenzyl
DMAc	dimethylacetamide
DPP-4	dipeptidyl peptidase-4
DMPU	N,N′-dimethylpropyleneurea
FAAs	fluorinated amino acids
FPhe	fluorinated phenylalanine
Fmoc-Osu	N-(9-fluorenylmethoxycarbonyloxy)succinimide
GLP1R	glucagon-like peptide-1 receptor
kryptofix®222	4,7,13,16,21,24-hexaoxa-1,10-diazabicyclo[8.8.8]hexacosane
LAT1	L-type amino acid transporter1
LHMDS	lithium bis(trimethylsilyl)amide
LDA	lithium diisopropylamide
NaHDMS	sodium bis(trimethylsilyl)amide
NFSI	N-fluorobenzenesulfonimide
PAM	phenylalanine aminomutase
PET	positron emission tomography
PIP	2-(pyridin-2-yl)isopropylamine
Phth	phthalimido
RRMM	relapsed and refractory multiple myeloma
Selectfluor	1-chloromethyl-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane bis(tetrafluoroborate)
SPhos	2-dicyclohexylphosphino-2′,6′-dimethoxybiphenyl
TBAF	tetrabutylammonium fluoride
TMSI	trimethylsilyl iodide
TMSCN	trimethylsilyl cyanide
TCE	trichloroethyl
TCB	1,2,4,5-tetracyanobenzene
Tr	triphenylmethyl
TEMPO	2,2,6,6-tetramethylpiperidin-1-yl)oxyl or (2,2,6,6-tetramethylpiperidin-1-yl)oxidanyl
TBTA	tert-butyl-2,2,2-trichloroacetimidate
TCNHPI	N-hydroxytetrachlorophthalimide
XtalFluor-E	N,N-diethylamino-S,S-difluorosulfinium tetrafluoroborate