Medicament being useful as a fibrosis inhibitor for organs or tissues, which comprises a compound of the formula (I):
wherein Ring Z is optionally substituted pyrrole ring, etc.; W2 is -CO-, -SO2-, optionally substituted C1-C4 alkylene, etc.; Ar2 is optionally substituted aryl, etc.; W1 and Ar1 mean the following (1) and (2):
(1) W1 is optionally substituted C1-C4 alkylene, etc.; Ar1 is optionally substituted bicyclic heteroaryl having 1 to 4 nitrogen atoms as ring-forming atoms:
(2) W1 is optionally substituted C2-C5 alkylene, optionally substituted C2-C5 alkenylene, etc.; and
Ar1 is aryl or monocyclic heteroaryl, which is substituted by carboxyl, alkoxycarbonyl, etc. at the ortho- or meta-position thereof with respect to the binding position of W1,
or a pharmaceutically acceptable salt thereof.
Postcomplexation synthetic routes to dipyrrin complexes
作者:David Perl、Sean W. Bisset、Shane G. Telfer
DOI:10.1039/c5dt04466a
日期:——
We report a postfunctionalization syntheticroute to dipyrrin complexes that gives access to a broad range of new complexes. This route involves the coordination of a 5-methylthiodipyrrinato ligand to a metal centre followed by displacement of the thiomethyl moiety by a nucleophile. Using rhenium(I) as a platform and amine nucleophiles, we show how complexes that would be difficult or impossible to
Pyrrole derivatives represented by the following formula:
1
wherein Ring Z is an optionally substituted pyrrole ring, etc.; W
2
is —CO—, —SO
2
—, an optionally substituted C
1
-C
4
alkylene, etc.; Ar
2
is an optionally substituted aryl, etc.; W
2
and Ar
1
mean the following (1) and (2):
(1) W
1
is an optionally substituted C
1
-C
4
alkylene, etc.; Ar
1
is an optionally substituted bicyclic heteroaryl having 1 to 4 nitrogen atoms as ring-forming atoms:
(2) W
1
is an optionally substituted C
2
-C
5
alkylene, an optionally substituted C
2
-C
5
alkenylene, etc.; and Ar
1
is an aryl or monocyclic heteroaryl, which are substituted by carboxyl, an alkoxycarbonyl, etc. at the ortho- or meta-position thereof with respect to the binding position of W
1
,
or a pharmaceutically acceptable salt thereof
These compounds are useful as medicaments such as a fibrosis inhibitor for organs or tissues.
Quadruplex-Interactive Agents as Telomerase Inhibitors: Synthesis of Porphyrins and Structure−Activity Relationship for the Inhibition of Telomerase
作者:Dong-Fang Shi、Richard T. Wheelhouse、Daekyu Sun、Laurence H. Hurley
DOI:10.1021/jm010246u
日期:2001.12.1
The cationicporphyrin 5,10,15,20-tetra-(N-methyl-4-pyridyl)porphyrin (TMPyP4) binds to quadruplexDNA and is thereby an inhibitor of human telomerase (Wheelhouse et al. J. Am. Chem. Soc. 1998, 120, 3261-3262). Herein the synthesis and telomerase-inhibiting activity of a wide range of analogues of TMPyP4 are reported, from which rules for a structure-activity relationship (SAR) have been discerned:
METHOD FOR PRODUCING ISOCYANATE-TERMINATED SILOXANES
申请人:Cremer Jens
公开号:US20100286426A1
公开(公告)日:2010-11-11
Isocyanate-functional or protected isocyanate-functional organopolysiloxanes are prepared directly by reaction of a siloxane bearing at least one silicon-bonded hydroxyl group with an alkoxy-functional α-silane containing an isocyanate group or blocked isocyanate group.