meso-2,5-Dimercapto-N,N,N',N'-tetramethyladipamide: a readily available, kinetically rapid reagent for the reduction of disulfides in aqueous solution
作者:Watson J. Lees、Rajeeva Singh、George M. Whitesides
DOI:10.1021/jo00026a026
日期:1991.12
meso-2,5-Dimercapto-N,N,N',N'-tetramethyladipamide (meso-DTA) reduces disulfide bonds up to 8 times faster (kinetic) than does dithiothreitol (DTT) in aqueous solution at pH 7.0. meso-DTA is easily synthesized in five steps (39% overall yield) from adipic acid. meso-DTA, which forms a cyclic disulfide, is less reducing than DTT by approximately 56 mV, but is much more reducing than mercaptoethanol.
A reagent for reduction of disulfide bonds in proteins that reduces disulfide bonds faster than does dithiothreitol
作者:Rajeeva Singh、George M. Whitesides
DOI:10.1021/jo00007a018
日期:1991.3
We have synthesized a new reagent--N,N'-dimethyl-N,N'-bis(mercaptoacetyl)hydrazine (DMH)-for the reduction of disulfide bonds in proteins. DMH reduces disulfid bonds 7 times faster than does dithiothreitol (DTT) in water at pH 7. DMH reduces mixed disulfides of cysteine proteases (papain and ficin) especially rapdily (30 times faster than DTT). DMH (epsilon-degrees = -0.300 V) reduces noncyclic disulfides completely, although it is less strongly reducing than DTT (epsilon-degrees = -0.356 V).
Selective reduction of disulfides by tris(2-carboxyethyl)phosphine
作者:John A. Burns、James C. Butler、John Moran、George M. Whitesides
DOI:10.1021/jo00008a014
日期:1991.4
Tris(2-carboxyethyl)phosphine (TCEP) reduces disulfides rapidly and completely in water at pH 4.5. It preferentially reduces more strained disulfides, in accordance with the usual mechanism postulated for reduction of disulfides by phosphines in water. The reagent can be synthesized conveniently in large quantities by acidic hydrolysis of the commercially available tris(2-cyanoethyl)phosphine.
BURNS, JOHN A.;BUTLER, JAMES C.;MORAN, JOHN;WHITESIDES, GEORGE M., J. ORG. CHEM., 56,(1991) N, C. 2648-2650
作者:BURNS, JOHN A.、BUTLER, JAMES C.、MORAN, JOHN、WHITESIDES, GEORGE M.