发明申请
US20120309962A1 PROCESS FOR THE PREPARATION OF CALCOBUTROL 有权
制备加工液的方法

PROCESS FOR THE PREPARATION OF CALCOBUTROL
摘要:
The invention concerns a process for the preparation of the calcium complex of 0-(2,3-Dihydroxy-1-(hydroxymethyl)propyl)-1,4,7,10-tetraazacyclodecane-4,7-triacetic acid, also known as Calcobutrol, starting from the pure gadolinium complex (Gadobutrol). The invention furthermore concerns Calcobutrol with a hitherto unknown level of purity.
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