[EN] METHODS FOR THE PRODUCTION OF NICKEL (II) ETIOPORPHYRIN-I<br/>[FR] PROCÉDÉS DE PRODUCTION D'ÉTIOPORPHYRINE-I DE NICKEL (II)
申请人:ADGERO BIOPHARMACEUTICALS HOLDINGS INC
公开号:WO2022072926A1
公开(公告)日:2022-04-07
Improved methods for the production of nickel (II) etioporphyrin-l. The improved method for the production of nickel (ll) etioporphyrin-l comprises brominating kryptopyrrole to provide monobromo-dipyrromethene, wherein the bromination is carried out in the presence of ethyl acetate; (b) cyclizing monobromo-dipyrromethene to provide etioporphyrin-l; and metallating etioporphyrin-l with a nickel (II) salt to provide nickel (II) etioporphyrin-l.