A conjugate comprising a PBD dimer linked from the tether joining the two PBD units, wherein the linker is of formula (A1): (Formula (A1)) wherein R
N1
is selected from H and C
1-4
alkyl; L is a linker connected to a cell binding agent; CBA is the cell binding agent; n is an integer selected in the range of 0 to 48; Q is: (Formula (Q)), where Q
x
is such that Q is an amino-acid residue, a dipeptide residue or a tripeptide residue.
一个由连接两个PBD单元的纽带相连的PBD二聚体组成的共轭物,其中连接剂的结构式为(A1):(结构式(A1)) 其中R
N1
选自H和C
1-4
烷基;L是与细胞结合剂相连的连接剂;CBA是细胞结合剂;n是0到48范围内的整数;Q是:(结构式(Q)),其中Q
x
使得Q为氨基酸残基、二肽残基或三肽残基。
Nucleophilic Reactions of Phorate and Terbufos with Reduced Sulfur Species under Anoxic Conditions
作者:Qiu Gan、Urs Jans
DOI:10.1021/jf063296m
日期:2007.5.1
(PhS-) were examined in well-defined aqueoussolution under anoxic conditions to investigate their role in the degradations of phorate and terbufos. Reactions were monitored at various concentrations of reduced sulfur species to obtain the second-order rate constants. The reactivity of the reduced sulfur species decreased in the order Sn2- > PhS- > HS- > S2O32-. Hydrolysis products, formaldehyde and diethyl
(2,6)3P=S] reacted with acids to form a novel mercaptophosphonium salt [(2,6)3P–SH]X, solution thermolysis of which in the absence or presence of triphenylphosphine resulted in the unusual desulfurization to give the tertiary phosphonium salts [(2,6)3P–OH]X. (2,6)3P=S also reacted with alkyl iodides or bromides under mild conditions to give stable (alkylthio)phosphonium salts [(2,6)3P–SR]X (R=Me, Et
4′-Nitroarenesulphenanilides: Their use in the synthesis of unsymmetrical disulphides
作者:L. Benati、P.C. Montevecchi、P. Spagnolo
DOI:10.1016/s0040-4039(00)84361-0
日期:1986.1
The reaction of 4′-nitroarenesulphenanilides with thiols in the presence of boron trifluoride etherate can provide an effective route to unsymmetricaldisulphides.
Enzyme-catalysed oxygenation and deoxygenation routes to chiral thiosulfinates
作者:Derek R. Boyd、Narain D. Sharma、Martina A. Kennedy、Steven D. Shepherd、John F. Malone、André Alves-Areias、Robert Holt、Stig G. Allenmark、Malin A. Lemurell (née Andersson)、Howard Dalton、Heather Luckarift
DOI:10.1039/b203139f
日期:2002.7.1
Enantioenriched thiosulfinates have been obtained by dioxygenase- and chloroperoxidase-catalysed oxidation of 1,2-disulfides and dimethyl sulfoxide reductase- catalysed deoxygenation.