Synthesis of an Acid Addition Salt of Delta-Aminolevulinic Acid from 5-Bromo Levulinic Acid Esters

A process of preparing an acid addition salt of delta-aminolevulinic acid comprising:dissolving a lower alkyl 5-bromolevulinate and an alkali metal diformylamide in an organic solvent selected from the group consisting of acetonitrile, methanol, tetrahydrofuran, 2-methyltetrahydrofuran and methylformate or mixtures thereof to form a suspension of an alkyl 5-(N,N-diformylamino) levulinate ester; and hydrolyzing said alkyl 5-(N,N-diformylamino) levulinate with an inorganic acid to form an acid addition salt of delta-amino levulinic acid.

Patents:
US 5,907,058   [MORE INFO]

Inventor(s): Luc Moens

Type of Offer: Licensing



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