BIFUNCTIONAL CYTOTOXIC AGENTS CONTAINING THE CTI PHARMACOPHORE
申请人:Pfizer Inc.
公开号:US20160271270A1
公开(公告)日:2016-09-22
The present invention is directed to novel bifunctional CTI-CTI and CBI-CTI dimers of the formula:
F
1
-L
1
-T-L
2
-F
2
where F
1
, L
1
, T, L
2
and F
2
are as defined herein, useful for the treatment for proliferative diseases, where the inventive dimers can function as stand-alone drugs, payloads in antibody-drug-conjugates (ADCs), and linker-payload compounds useful in connection with the production or administration of such ADCs; and to compositions including the aforementioned dimers, linker-payloads and ADCs, and methods for using these dimers, linker-payloads and ADCs, to treat pathological conditions including cancer.
In recognition of the need to develop novel therapeutic agents and efficient methods for the synthesis thereof, the present invention provides novel compounds of general formula (I):
1
and pharmaceutically acceptable derivatives thereof, wherein R
1
, R
2
, R
3
, n, X and Y are as defined herein. The present invention also provides pharmaceutical compositions comprising a compound of formula (I) and a pharmaceutically acceptable carrier. The present invention further provides compounds capable of inhibiting histone deacetylatase activity and methods for treating disorders regulated by histone deacetylase activity (e.g., cancer and protozoal infections) comprising administering a therapeutically effective amount of a compound of formula (I) to a subject in need thereof. The present invention additionally provides methods for modulating the glucose-sensitive subset of genes downstream of Ure2p. The present invention also provides methods for preparing compounds of the invention.
Zinc-Mediated Palladium-Catalyzed Formation of Carbon−Sulfur Bonds
作者:Chad C. Eichman、James P. Stambuli
DOI:10.1021/jo900385d
日期:2009.5.15
aryl and alkyl thiols with aryl bromides in high yields. The addition of zinc chloride to a palladium catalyst system that reportedly failed to promote sulfide formation allows this once ineffective catalyst system to provide the sulfide product in good yield. This paper describes a high-yielding and general monodentate phosphine-ligated palladium catalyst for biaryl and alkyl aryl sulfide formation
Visible-light induced decarboxylative coupling of redox-active esters with disulfides to construct C–S bonds
作者:Zhiwei Xiao、Lu Wang、Junjie Wei、Chongzhao Ran、Steven H. Liang、Jingjie Shang、Guang-Ying Chen、Chao Zheng
DOI:10.1039/d0cc00451k
日期:——
A novel method has been established for the construction of C–S bonds using redox-active esters with disulfides in the presence of Ru-photoredox catalyst.
已建立一种新颖的方法,利用具有二硫键的氧化还原活性酯和Ru-光氧化还原催化剂构建C-S键。
The invention of new radical chain reactions. Part VIII. Radical chemistry of thiohydroxamic esters; A new method for the generation of carbon radicals from carboxylic acids
作者:Derek H.R. Barton、David Crich、William B. Motherwell
DOI:10.1016/s0040-4020(01)97173-x
日期:1985.1
by tributylstannane in a radicalchainreaction to furnish nor-alkanes.1 In the absence of the stannane a smooth decarboxylatlive rearrangement occurs to give 2-substituted thiopyridines.1 The radicals present in this reaction provoke with -butylthiol an efficient radicalreaction with formation of nor-alkane and 2-pyridyl--butyl disulphide.1Similarly these carbon radicals can be captured by halogen