(BLs), including the highly worrying carbapenemases. Whereas inhibitors of these enzymes were recently marketed, they only target serine-carbapenemases (e.g. KPC-type), and no clinically useful inhibitor is available yet to neutralize the class of metallo-β-lactamases (MBLs). We are developing compounds based on the 1,2,4-triazole-3-thione scaffold, which binds to the di-zinc catalytic site of MBLs
Discovery of 4,5-Diphenyl-1,2,4-triazole Derivatives as a Novel Class of Selective Antagonists for the Human V1A Receptor
作者:A Kakefuda
DOI:10.1016/s0968-0896(02)00009-3
日期:2002.6
5-diphenyl-1,2,4-triazole derivativesrelated to 3 revealed that the 4,5-diphenyl-1,2,4-triazole structure played an essential role in exerting high affinity for the hV(1A) receptor and that introduction of a basic amine moiety to the methoxy part of the 4-phenyl ring was effective in the improvement of both affinity for the hV(1A) receptor and selectivity versus the hV(2) receptor. Compound 3 and the 2-(morphorino)ethoxy
potent, they represented a promising basis for the development of broad-spectrum MBL inhibitors. Here, we synthesized and characterized a large number of 4-amino-1,2,4-triazole-3-thione-derived Schiffbases. Compared to the previous series, the presence of an aryl moiety at position 4 afforded an average 10-fold increase in potency. Among 90 synthetic compounds, more than half inhibited at least one
The present invention relates to novel compounds and methods for the manufacture of inhibitors of deubiquitylating enzymes (DUBs). In particular, the invention relates to the inhibition of ubiquitin C-terminal hydrolase 30 or ubiquitin specific peptidase 30 (USP30). The novel compounds have formula (I): (Formula (I)) or are pharmaceutically acceptable salts thereof, wherein: R
1a
, R
1b
, R
1c
, R
1d
, R
1e
and R
1f
each independently represent hydrogen, optionally substituted C
1
-C
6
alkyl or optionally substituted C
3
-C
4
cycloalkyl, or R
1b
and R
1c
together form an optionally substituted C
3
-C
6
cycloalkyl ring, or R
1d
and R
1e
together form an optionally substituted C
3
-C
6
cycloalkyl ring; R
2
represents hydrogen or optionally substituted C
1
-C
6
alkyl; A represents an optionally further substituted 5 to 10 membered monocyclic or bicyclic heteroaryl, heterocyclyl or aryl ring; L represents a covalent bond or linker; B represents an optionally substituted 3 to 10 membered monocyclic or bicyclic heterocyclyl, heteroaryl, cycloalkyl or aryl ring; and when -A-L-B is at position x attachment to A is via a carbon ring atom of A, and either: A cannot be triazolopyridazinyl, triazolopyridinyl, imidazotriazinyl, imidazopyrazinyl or pyrrolopyrimidinyl; or B cannot be substituted with phenoxyl; or B cannot be cyclopentyl when L is an oxygen atom.
Compound of formula (I) wherein A is selected from (i), where RF1 is H or F; (ii); (iii) a N-containing C6 heteroaryl group; and B is (B), where X1 is either CRF2 or N, where RF2 is H or F; X2 is either CR3 or N, where R3 is selected from H, Me, CI, F OMe; X3 is either CH or N; X4 is either CRF3 or N, where RF3 is H or F; where only one or two of X1, X2, X3 and X4 may be N; and R4 is selected from I, optionally substituted phenyl, optionally substituted C5-6 heteroaryl; optionally substituted C1-6 aIkyI and optionally substituted C1-6 alkoxy, which are useful in the treatment of a condition ameliorated by the inhibition of MOZ.