prov:value
| - s methyl, ethyl, n-propyl, n-butyl, more particularly hydrogen or methyl, R5 possibly furthermore representing a COOH7 group in which R7 represents hydrogen or methyl;R6, R7, R8, R9 and R10 are selected from among hydrogen and methyl, R8 and R9 possibly, furthermore, forming together and with the N atom a piperidyl ring.
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