Rc. Anderson et al., CONFORMATION OF [1-C-13,N-15]ACETYL-L-CARNITINE - ROTATIONAL-ECHO, DOUBLE-RESONANCE NUCLEAR-MAGNETIC-RESONANCE SPECTROSCOPY, Journal of the American Chemical Society, 117(42), 1995, pp. 10546-10550
The conformation of [1-C-13,N-15]acetyl-L-carnitine is studied by rota
tional-echo, double-resonance (REDOR) NMR experiments. The REDOR resul
ts show that acetyl-L-carnitine adopts an extended molecular conformat
ion in the solid state for both crystalline and lyophilized samples. T
hese findings are in contrast to various X-ray-determined structures o
f racemic acetylcarnitine showing folded conformations.