Compounds for their use as drugs for the treatment and/or the prevention of infection(s) caused by biofilm-forming bacteria
申请人:CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
公开号:US10745395B2
公开(公告)日:2020-08-18
The present invention relates to compounds of the following formula (I), wherein: m represents an integer being equal to 0, 1, 2, 3, 4, 5 or 6, X represents a simple bond or a radical —CHR1 wherein R1 represents:—a hydrogen atom, or—a linear or branched, possibly interrupted by up to 3 heteroatoms selected from O, S or N and/or possibly substituted, (C1-C12)-alkyl, R2, R3 and R4 represent independently from each other:—a hydrogen atom, or—a linear or branched (C1-C12-alkyl or (C1-C12)-acyl R5 represents:—a hydrogen atom, or—a linear or branched, possibly substituted, (C1-C13)-alkyi possibly substituted and possibly interrupted by up to 3 heteroatoms selected from O, S or N, R6 represents:—a hydrogen atom, or—a linear or branched possibly substituted (C1-C12)-alkyl, possibly substituted and possibly interrupted by up to 3 heteroatoms selected from O, S or N, for their use as antibacterial drugs for the treatment and/or the prevention of infection(s) caused by biofilm-forming bacteria.
α-1-<i>C</i>-Butyl-1,4-dideoxy-1,4-imino-<scp>l</scp>-arabinitol as a Second-Generation Iminosugar-Based Oral α-Glucosidase Inhibitor for Improving Postprandial Hyperglycemia
We report on the synthesis and the biological evaluation of a series of alpha-1-C-alkylated 1,4-dideoxy-1,4-imino-L-arabinitol (LAB) derivatives. The asymmetric synthesis of the derivatives was achieved by asymmetric allylic alkylation, ring-closing metathesis, and Negishi cross-coupling as key reactions. alpha-1-C-Butyl-LAB is a potent inhibitor of intestinal maltase, isomaltase, and sucrase, with IC50 values of 0.13, 4.7, and 0.032 mu M, respectively. Matrix-assisted laser desorption ionization time-of-flight mass spectrometric analysis revealed that this compound differs from miglitol in that it does not influence oligosaccharide processing and the maturation of glycoproteins. A molecular docking study of maltase-glucoamylase suggested that the interaction modes and the orientations of alpha-1-C-butyl-LAB and miglitol are clearly different. Furthermore, a-l-C-butyl-LAB strongly suppressed postprandial hyperglycemia at an early phase, similar to miglitol in vivo. It is noteworthy that the effective dose was about 10-fold lower than that for miglitol. alpha-1-C-Butyl-LAB therefore represents a new class of promising compounds that can improve postprandial hyperglycemia.
The synthesis and biological evaluation of 1-C-alkyl-l-arabinoiminofuranoses, a novel class of α-glucosidase inhibitors
The asymmetric synthesis of 1-C-alkyl-L-arabinoiminofuranoses 1 was achieved by asymmetric allylic alkylation (AAA), ring closing metathesis (RCM), and Negishi cross coupling as key reactions. Some of the prepared compounds showed potent inhibitory activities towards intestinal maltase, with IC50 values comparable to those of commercial drugs such as acarbose, voglibose, and miglitol, which are used in the treatment of type 2 diabetes. Among them, the inhibitory activity (IC50 = 0.032 mu M) towards intestinal sucrase of 1c was quite strong compared to the above commercial drugs. (C) 2010 Elsevier Ltd. All rights reserved.
COMPOUNDS FOR THEIR USE AS DRUGS FOR THE TREATMENT AND/OR THE PREVENTION OF INFECTION(S) CAUSED BY BIOFILM-FORMING BACTERIA
申请人:CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
公开号:US20180030047A1
公开(公告)日:2018-02-01
Disclosed are compounds of the following formula I:
wherein:
m represents an integer being equal to 0, 1, 2, 3, 4, 5 or 6,
X represents a simple bond or a radical —CHR
1
— wherein R
1
represents:
a hydrogen atom, or
a linear or branched, possibly interrupted by up to 3 heteroatoms selected from O, S or N and/or possibly substituted, (C
1
-C
12
)-alkyl,
R
2
, R
3
and R
4
represent independently from each other:
a hydrogen atom, or
a linear or branched (C
1
-C
12
)-alkyl or (C
1
-C
12
)-acyl
R
5
represents:
a hydrogen atom, or
a linear or branched, possibly substituted, (C
1
-C
13
)-alkyl possibly interrupted by up to 3 heteroatoms selected from O, S or N,
R
6
represents:
a hydrogen atom, or
a linear or branched possibly substituted (C
1
-C
12
)-alkyl, possibly substituted and possibly interrupted by up to 3 heteroatoms selected from O, S or N, for their use as antibacterial drugs.
Dihydroxyacetone Phosphate Aldolase Catalyzed Synthesis of Structurally Diverse Polyhydroxylated Pyrrolidine Derivatives and Evaluation of their Glycosidase Inhibitory Properties
The polyhydroxylated pyrrolidines generated were tested as inhibitors against seven glycosidases. Among them, good inhibitors of α‐L‐fucosidase (IC50=1–20 μM), moderate of α‐L‐rhamnosidase (IC50=7–150 μM), and weak of α‐D‐mannosidase (IC50=80–400 μM) were identified. The apparent inhibition constant values (Ki) were calculated for the most relevant inhibitors and computational docking studies were