Synthesis of L-2,4-diamino[4-11C]butyric acid and its use in some in vitro and in vivo tumour models.

Abstract:

:L-2,4-Diamino[4-11C]butyric acid (DAB) was synthesized by an enzyme catalysed carrier added (0.1 micromol KCN) reaction of hydrogen [11C]cyanide with O-acetyl-L-serine followed by reduction. L-[11C]DAB was obtained with a radiochemical purity higher than 96% and with a decay corrected radiochemical yield of 30-40% within a 32 min reaction time. The enantiomeric excess was 98%. The uptake of L-[11C]DAB was investigated in multicellular aggregates of six different cell lines and animal tumour models. L-[11C]DAB is potentially useful for the assessment of pharmacokinetics of L-DAB in vivo for part of its evaluation as an antitumoural agent, although its use for diagnostic purposes seems limited.

journal_name

Nucl Med Biol

authors

Antoni G,Omura H,Bergström M,Furuya Y,Moulder R,Roberto A,Sundin A,Watanabe Y,Långström B

doi

10.1016/s0969-8051(97)00032-2

subject

Has Abstract

pub_date

1997-08-01 00:00:00

pages

595-601

issue

6

eissn

0969-8051

issn

1872-9614

pii

S0969805197000322

journal_volume

24

pub_type

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