L-Arginine Supplements
Derivatives according to claim 1 for which E represents the oxygen atom, A represents the L-Arginine Supplements radical or a hydrogen atom, and R1 and R2 form the morpholine, piperidine, or imidazole ring. A process for preparing compounds according to any of the claims 1 to 2, which process consists in reacting a compound of general formula (1): In which A represents an alkyl radical of 1 to 6 carbon atoms or the nitro radical and R3 a protecting group, with a compound of general formula (2): H-E-(CH2)n-NR1R2 In which N, E, R1 and R2 are as defined above, in the presence of a coupling agent, comprising at a temperature between 0 and 30 ° C, then to cleave the protecting group R3 of the compound thus obtained from the general formula.
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