Synthesis and properties of carbonylbis(methionyl)insulin, a proinsulin analogue which is convertible to insulin by cyanogen bromide cleavage.


The preparation and use of carbonylbis (L-methionine p-nitrophenyl ester) as a reversible cross-linking reagent for insulin are described. The reaction of 1 equiv of reagent with zinc insulin in dimethylformamide in the presence of triethylamine yields as one of the products NalphaA1, NepsilonB29-carbonylbis(methionyl)insulin, (CBM-insulin). The CBM-insulin… (More)


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