硫是必需元素,因为它广泛存在于蛋白质中。二硫键是许多不同类型的重要有机分子中的重要部分。开发了一种新的方法,用于无氧化剂和无催化剂的S / H / S-H交叉偶联,伴随氢的释放,以构建不对称的二硫化物。在室温下未分裂细胞的条件下,通过芳基硫醇和烷基硫醇的直接偶联制备了一系列不对称的二硫键,收率高达87%。克级合成也突出了这种电化学策略的合成效用。
Tubulysin analogs of the formula (I)
where R
1
, R
2
R
3
, R
4
, R
5
, R
6
, R
7
, and Y are as defined herein, are anti-mitotic agents that can be used in the treatment of cancer, especially when conjugated to a targeting moiety.
[EN] SPLICEOSTATIN ANALOGS<br/>[FR] ANALOGUES DE SPLICÉOSTATINE
申请人:PFIZER
公开号:WO2014068443A1
公开(公告)日:2014-05-08
The present invention is directed to novel cytotoxic spliceostatin analogs (I) and derivatives, to antibody drug conjugates thereof, and to methods for using the same to treat medical conditions including cancer.
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。
[EN] HINDERED DISULFIDE DRUG CONJUGATES<br/>[FR] CONJUGUÉS MÉDICAMENTEUX À PONT DISULFURE ENCOMBRÉ
申请人:GENENTECH INC
公开号:WO2017064675A1
公开(公告)日:2017-04-20
The invention relates generally to disulfide drug conjugates wherein a linker comprising a sulfur-bearing carbon atom substituted with at least one hydrocarbyl or substituted hydrocarbyl is conjugated by a disulfide bond to a cysteine sulfur atom of a targeting carrier, and wherein the linker is further conjugated to a drug moiety. The invention further relates to activated linker-drug conjugates suitable for conjugation to a targeting carrier by a disulfide bond. The invention further relates to methods for preparing hindered disulfide drug conjugates.
ANTHRACYCLINE DISULFIDE INTERMEDIATES, ANTIBODY-DRUG CONJUGATES AND METHODS
申请人:GENENTECH, INC.
公开号:US20160074528A1
公开(公告)日:2016-03-17
The invention provides antibody-drug conjugates comprising an antibody conjugated to an anthracycline drug moiety via a disulfide linker, anthracycline disulfide intermediates, and methods of using the antibody-drug conjugates.