- 2-ARYLSULFONAMIDO-N-ARYLACETAMIDE DERIVATIZED STAT3 INHIBITORS
-
The present disclosure provides pharmaceutical compositions comprising 2-arylsulfonamido-N-arylacetamide derivatized Stat3 inhibitors and certain pharmaceutically acceptable salts thereof, and methods of their use.
- -
-
Paragraph 00662; 00664; 00761
(2018/08/20)
-
- Benzoxaborole Antimalarial Agents. Part 5. Lead Optimization of Novel Amide Pyrazinyloxy Benzoxaboroles and Identification of a Preclinical Candidate
-
Carboxamide pyrazinyloxy benzoxaboroles were investigated with the goal to identify a molecule with satisfactory antimalarial activity, physicochemical properties, pharmacokinetic profile, in vivo efficacy, and safety profile. This optimization effort discovered 46, which met our target candidate profile. Compound 46 had excellent activity against cultured Plasmodium falciparum, and in vivo against P. falciparum and P. berghei in infected mice. It exhibited good PK properties in mice, rats, and dogs. It was highly active against the other 11 P. falciparum strains, which are mostly resistant to chloroquine and pyrimethamine. The rapid parasite in vitro reduction and in vivo parasite clearance profile of 46 were similar to those of artemisinin and chloroquine, two rapid-acting antimalarials. It was nongenotoxic in an Ames assay, an in vitro micronucleus assay, and an in vivo rat micronucleus assay when dosed orally up to 2000 mg/kg. The combined properties of this novel benzoxaborole support its progression to preclinical development.
- Zhang, Yong-Kang,Plattner, Jacob J.,Easom, Eric E.,Jacobs, Robert T.,Guo, Denghui,Freund, Yvonne R.,Berry, Pamela,Ciaravino, Vic,Erve, John C. L.,Rosenthal, Philip J.,Campo, Brice,Gamo, Francisco-Javier,Sanz, Laura M.,Cao, Jianxin
-
p. 5889 - 5908
(2017/07/22)
-
- Novel lead generation of an anti-tuberculosis agent active against non-replicating mycobacteria: Exploring hybridization of pyrazinamide with multiple fragments
-
The key to shortening tuberculosis (TB) drug regimen lies in eliminating the reservoir of non-replicating persistent (NRP) Mycobacterium tuberculosis (Mtb). Pyrazinamide (PZA) is the only known drug used as part of a combination therapy that is believed to kill NRP Mtb and achieve sterilization. PZA is active only under low pH screening conditions. Screening and identification of NRP-active anti-TB compounds are severely limited because compounds are usually inactive under regular assay conditions. In an effort to design novel NRP-active anti-TB compounds, we used pyrazinamide as a core and hybridized it with the fragments derived from marketed drugs. One of these designs, compound 8, was a hybrid with fluoroquinolone. This compound exhibited >10 fold improvement in NRP activity under low pH condition as compared to pyrazinamide and a modest activity (0.8 log10 kill) under nutritionally starved NRP condition. Furthermore, compound 8 was active against fluoroquinolone-resistant strains and did not show any activity in a DNA supercoiling assay (gyrase inhibition), suggesting that its mechanism of action is not that of the parent fluoroquinolone. These results provide a novel avenue in the exploration of new chemotypes that are active against non-replicating Mtb.
- Markad, Shankar D.,Kaur, Parvinder,Kishore Reddy,Chinnapattu, Murugan,Raichurkar, Anandkumar,Nandishaiah, Radha,Panda, Manoranjan,Iyer, Pravin S.
-
p. 2986 - 2992
(2015/03/14)
-
- Benzoxaborole Antimalarial Agents. Part 4. Discovery of Potent 6-(2-(Alkoxycarbonyl)pyrazinyl-5-oxy)-1,3-dihydro-1-hydroxy-2,1-benzoxaboroles
-
A series of 6-hetaryloxy benzoxaborole compounds was designed and synthesized for a structure-activity relationship (SAR) investigation to assess the changes in antimalarial activity which result from 6-aryloxy structural variation, substituent modification on the pyrazine ring, and optimization of the side chain ester group. This SAR study discovered highly potent 6-(2-(alkoxycarbonyl)pyrazinyl-5-oxy)-1,3-dihydro-1-hydroxy-2,1-benzoxaboroles (9, 27-34) with IC50s = 0.2-22 nM against cultured Plasmodium falciparum W2 and 3D7 strains. Compound 9 also demonstrated excellent in vivo efficacy against P. berghei in infected mice (ED90 = 7.0 mg/kg).
- Zhang, Yong-Kang,Plattner, Jacob J.,Easom, Eric E.,Jacobs, Robert T.,Guo, Denghui,Sanders, Virginia,Freund, Yvonne R.,Campo, Brice,Rosenthal, Philip J.,Bu, Wei,Gamo, Francisco-Javier,Sanz, Laura M.,Ge, Min,Li, Liang,Ding, Jie,Yang, Yin
-
p. 5344 - 5354
(2015/08/03)
-
- INDAZOLES
-
The present invention relates to compounds of formula (I) to pharmaceutically acceptable salts therefore and to pharmaceutically acceptable solvates of said compounds and salts, wherein the substituents are defined herein; to compositions containing such compounds; and to the uses of such compounds in the treatment of various diseases, particularly asthma and COPD.
- -
-
-
- FAAH INHIBITORS
-
The present disclosure relates to compounds useful as inhibitors of the enzyme Fatty Acid Amide Hydrolase (FAAH). The disclosure also provides pharmaceutically acceptable compositions comprising the compounds of the disclosure and methods of using the com
- -
-
Page/Page column 151-152
(2012/07/13)
-
- OXADIAZOLE INHIBITORS OF LEUKOTRIENE PRODUCTION
-
The present invention relates to compounds of formula (I) and pharmaceutically acceptable salts thereof, wherein R1-R5 are as defined herein. The invention also relates to pharmaceutical compositions comprising these compounds, metho
- -
-
Page/Page column 90
(2012/04/10)
-
- OXADIAZOLE INHIBITORS OF LEUKOTRIENE PRODUCTION
-
The present invention relates to compounds of formula (I) and (IA) and pharmaceutically acceptable salts thereof, wherein R1- R5 are as defined herein. The invention also relates to pharmaceutical compositions comprising these compounds, methods of using these compounds in the treatment of various diseases and disorders, processes for preparing these compounds and intermediates useful in these processes.
- -
-
Page/Page column 83
(2012/04/10)
-
- NOVEL PHENYLPYRROLE DERIVATIVE
-
The present invention relates to a compound or a pharmacologically acceptable salt thereof having superior glucokinase activating activity, and is a compound represented by general formula (I), or pharmacologically acceptable salt thereof: [wherein, A represents, for example, an oxygen atom or sulfur atom, R1 represents, for example, a C1-C6 alkyl group, a C1-C6 alkoxy group or a C1-C6 halogenated alkyl group, A and R1 together with the carbon atom bonded thereto form a heterocyclic group that may be substituted with 1 to 3 group(s) independently selected from Substituent Group α, R2 represents a phenyl group that may be substituted with 1 to 5 group(s) independently selected from Substituent Group α or a heterocyclic group that may be substituted with 1 to 3 group(s) independently selected from Substituent Group α, R3 represents a hydroxy group or a C1-C6 alkoxy group, and Substituent Group α consists of, for example, a halogen atom, a C1-C6 alkyl group, a C1-C6 alkyl group substituted with 1 or 2 hydroxy group(s), a C1-C6 alkylsulfonyl group, and a group represented by the formula -V-NR5R6 (wherein, V represents a carbonyl group or a sulfonyl group, and R5 and R6 may be the same or different and respectively represent a hydrogen atom or a C1-C6 alkyl group, or R5 and R6 together with the nitrogen atom bonded thereto form a 4- to 6-membered saturated heterocycle that may be substituted with 1 or 2 group(s) independently selected from a C1-C6 alkyl group and a hydroxy group, and the 4- to 6-membered saturated heterocycle may further contain one oxygen atom or nitrogen atom)].
- -
-
Page/Page column 96
(2010/11/03)
-
- Derivatives of pyrazinecarboxylic acid: 1H, 13C and 15N NMR spectroscopic investigations
-
NMR spectroscopic studies are undertaken with derivatives of 2-pyrazinecarboxylic acid. Complete and unambiguous assignment of chemical shifts (1H, 13C, 15N) and coupling constants (1H,1H; 13C,1H; 15N,1H) is achieved by combined application of various 1D and 2D NMR spectroscopic techniques. Unequivocal mapping of13C,1H spin coupling constants is accomplished by 2D (S,J) long-range INEPT spectra with selective excitation. Phenomena such as the tautomerism of 3-hydroxy-2-pyrazinecarboxylic acid are discussed.
- Holzer, Wolfgang,Eller, Gernot A.,Datterl, Barbara,Habicht, Daniela
-
scheme or table
p. 617 - 624
(2010/07/05)
-
- FUSED TRIAZOLE TACHYKININ RECEPTOR ANTAGONISTS
-
The present invention is directed to certain fused triazole compounds which are useful as neurokinin-1 (NK-I) receptor antagonists, and inhibitors of tachykinin and in particular substance P- The invention is also concerned with pharmaceutical formulation
- -
-
Page/Page column 29
(2008/06/13)
-
- NOVEL MCH RECEPTOR ANTAGONISTS
-
The present invention relates to a melanin concentrating hormone antagonist compound of formula (I); wherein Ar1, L1, R1, q, X, R2, R3, R4, and R5 are as defined, or a pharmaceutically acceptable salt, solvate, or enantiomer thereof useful in the treatment, prevention or amelioration of symptoms associated with obesity and related diseases.
- -
-
Page/Page column 71
(2008/06/13)
-
- AMIDE DERIVATIVES AND DRUGS
-
The present invention provides an amide derivative represented by the following formula [1]: wherein n represents 0 or 1; X represents CR4 or N; Y represents CR6 or N; Z represents CR7 or N; R1 and R2 may be the same or different and each represents hydrogen, optionally substituted alkyl, acyl, optionally substituted aryl, or an optionally substituted aromatic heterocyclic group; R4, R5, R6 and R7 may be the same or different and each represents hydrogen, halogen, hydroxy, amino, alkyl, haloalkyl, alkoxy, monoalkylamino, dialkylamino, arylalkyl, cyano, or nitro; and R3 represents optionally substituted alkylamino, optionally substituted arylamino, or optionally substituted cyclic amino, or a pharmaceutically acceptable salt thereof, and a pharmaceutical composition comprising them as an active ingredient. The compound of the present invention is useful as a TGF-β inhibitor.
- -
-
-
- Pyrazinoic Acid Esters with Broad Spectrum in Vitro Antimycobacterial Activity
-
A series of substituted pyrazinoic acid esters has been prepared and examined for their in vitro activity against Mycobacterium avium and Mycobacterium kansasii as well as mycobacterium tuberculosis.Modification of both the pyrazine nucleus and the ester functionality have been very successfull in expanding the activity of pyrazinamide to include M. avium and M. kansasii, organisms normally not susceptible to pyrazinamide.Several of these compounds have activities 100-1000-fold greater than that of pyrazinamide against M. tuberculosis.
- Cynamon, Michael H.,Gimi, Rayomand,Gyenes, Ferenc,Sharpe, Cindy A.,Bergmann, Kathryn E.,et al.
-
p. 3902 - 3907
(2007/10/02)
-
- Studies on Pyrazines. 29. High Regioselective Synthesis of Chloropyrazines from 3-Substituted Pyrazine 1-Oxides
-
Reaction of 3-methoxy- or 3-chloropyrazine 1-oxides with refluxing phosphoryl chloride in the presence of amine led to a high regioselective formation of 3-substituted 2-chloropyrazines.In contrast, the use of chloroacetyl chloride instead of phosphoryl chloride enabled different regioselectivity to yield 6-substituted 2-chloropyrazines, particularly 3-methoxycarbonylpyrazine 1-oxide was almost exclusively converted into methyl 6-chloropyrazinecarboxylate under conditions without the amine.
- Sato, Nobuhiro,Fujii, Megumi
-
p. 1177 - 1180
(2007/10/02)
-
- Studies on Pyrazines. 7 (1). The Synthesis of 5-Chloropyrazinecarboxylic Acid
-
The titled carboxylic acid (1) was prepared by condensation of 2-furylglyoxal with aminoacetamide followed by chlorination of the resulting 2-hydroxy-5-(2'-furyl)pyrazine (2) and permanganate oxidation.The acid was further converted into methyl ester and 5-hydroxypyrazinecarboxylic acid.
- Sato, Nobuhiro,Arai, Shinji
-
p. 407 - 408
(2007/10/02)
-
