A new method for preparing...

Details A new method for preparing... A new method for preparing...

C - Chemistry, Metallurgy

07

D

C07D 241/08 (2006.01) C07C 229/16 (2006.01)

Patent

CA 2670282

The invention relates to a novel method for producing compounds of formula (I) by cyclising tetraacetic acid alkyl esters of formula (II) in the presence of ammonia and formamide, and to the compounds of formula (II) used in this method.

L'invention concerne un procédé de fabrication des composés représentés par la formule (I) par cyclisation d'alkylesters d'acide tétraacétique représentés par la formule (II) en présence d'ammoniaque et de formamide, ainsi que les composés représentés par la formule (II) employés dans ce procédé.

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