A. Martin et al., STEREOSELECTIVE SYNTHESIS OF L-[1-C-13], L-[2-C-13] AND L-[N-15] AMINO-ACIDS, Isotopes in environmental and health studies, 32(1), 1996, pp. 15-19
The precursor N-(diphenylmethylene) glycinyl camphor sultam has been s
pecifically labelled by nitrogen-15 or carbon-13 starting from either
NH4Cl, (K2CO3)-C-13 or (CH3NH2)-C-13 or labelled glycine. Akylation of
these different labelled precursors by corresponding electrophiles yi
elded the following labelled amino acids: Leu, Phe, Ala, Val, Ser, Asn
, Gin, Asp, Trp and Cys.