Conclusions
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1.
Selective bromination of 4-oxopentanoic acid in methanol in the presence of urea afforded the 4-oxo-5-bromopentanoic acid methyl ester, a key product for obtaining 4-oxo-5-aminopentanoic acid hydrochloride.
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2.
Alternatively, 4-oxo-5-aminopentanoic acid hydrochloride was synthesized from 1-phthalimido-3-bromoacetone and Meldrum's acid.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 8, pp. 1796–1799, August, 1987.
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Zav'yalov, S.I., Zavozin, A.G. Synthesis of 4-OXO-5-aminopentanoic acid hydrochloride. Russ Chem Bull 36, 1663–1666 (1987). https://doi.org/10.1007/BF00960127
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DOI: https://doi.org/10.1007/BF00960127