translate English to French: Samples of N-aroyl-2,2-dimethyloxazolidines (5a–5n) were isolated and the rotational isomers were assigned the Z stereochemistry by NOESY and 13C NMR experiments.
On a isolé des échantillons des N-aroyl-2,2-diméthyloxazolidines (5a–5n) et, sur la base d'expériences de RMN du 13C et de NEOSY, on a attribué la stéréochimie Z à leurs isomères rotationnels.