Novel process for the preparation of a protoporphyrin

Details Novel process for the preparation of a protoporphyrin Novel process for the preparation of a protoporphyrin

C - Chemistry, Metallurgy

07

D

C07D 487/22 (2006.01)

Patent

CA 2251128

The present invention provides a process for the preparation of BPD 1,4-diene diester A-ring comprising reacting hematoporphyrin IX dimethyl ester with dimethyl acetylenedicarboxylate followed by purification of the product by a series of fractional crystallizations.

Cette invention concerne un processus de préparation d'anneau A de diester de BPD 1,4-diène, lequel procédé consiste à faire réagir de l'ester de diméthyle d'hématoporphyrine IX avec de l'acétylènedicarboxylate de diméthyle, puis à purifier le produit obtenu par une série de cristallisations fractionnées.

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