191407-39-3Relevant academic research and scientific papers
Synthesis and structure-activity relationships of varied ether linker analogues of the antitubercular drug (6 S)-2-nitro-6-{[4-(trifluoromethoxy) benzyl]oxy}-6,7-dihydro-5 H -imidazo[2,1- b ][1,3]oxazine (PA-824)
Thompson, Andrew M.,Sutherland, Hamish S.,Palmer, Brian D.,Kmentova, Iveta,Blaser, Adrian,Franzblau, Scott G.,Wan, Baojie,Wang, Yuehong,Ma, Zhenkun,Denny, William A.
supporting information; experimental part, p. 6563 - 6585 (2011/12/02)
New analogues of antitubercular drug PA-824 were synthesized, featuring alternative side chain ether linkers of varying size and flexibility, seeking drug candidates with enhanced metabolic stability and high efficacy. Both α-methyl substitution and removal of the benzylic methylene were broadly tolerated in vitro, with a biaryl example of the latter class exhibiting an 8-fold better efficacy than the parent drug in a mouse model of acute Mycobacterium tuberculosis infection and negligible fragmentation to an alcohol metabolite in liver microsomes. Extended linkers (notably propenyloxy, propynyloxy, and pentynyloxy) provided greater potencies against replicating M. tb (monoaryl analogues), with propynyl ethers being most effective under anaerobic (nonreplicating) conditions (mono/biaryl analogues). For benzyloxybenzyl and biaryl derivatives, aerobic activity was maximal with the original (OCH2) linker. One propynyloxy-linked compound displayed an 89-fold higher efficacy than the parent drug in the acute model, and it was slightly superior to antitubercular drug OPC-67683 in a chronic infection model.
ALKANOIC ACID DERIVATIVES AND THEIR THERAPEUTIC USE AS HDAC INHIBITORS
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Page/Page column 105, (2010/08/05)
The invention related to alkanoic acid derivatives of Formula (IIa) and (IIb). These compounds of the invention were found to have activity as HDAC inhibitors.
AMINO ALCOHOL DERIVATIVE, ADDITION SALT THEREOF, AND IMMUNOSUPPRESSANT
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Page/Page column 32, (2008/06/13)
An amino alcohol derivative represented by the following general formula (1) (for example, (±)-2-amino-5-[4-(3-benzyloxyphenylthio)-2-chlorophenyl]-2-methylpentane-1-ol) exhibits strong immunosuppressive effect while causing less side effects:
DIARYL ETHER DERIVATIVE, ADDITION SALT THEREOF, AND IMMUNOSUPPRESSANT
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Page 21, (2010/02/07)
The present invention provides diaryl ether derivatives that exhibit significant immunosuppressive effects with less side effects. The diaryl derivatives of the present invention are represented by the following general formula (1): ???one example is 2-amino-2-[4-(3-benzyloxyphenoxy)-2-chlorophenyl)propyl-1,3-propanediol.
Design, synthesis, and structure-activity relationships of macrocyclic hydroxamic acids that inhibit tumor necrosis factor α release in vitro and in vivo
Xue,Voss,Nelson,Duan,Cherney,Jacobson,He,Roderick,Chen,Corbett,Wang,Meyer,Kennedy,Degrado,Hardman,Teleha,Jaffee,Liu,Copeland,Covington,Christ,Trzaskos,Newton,Magolda,Wexler,Decicco
, p. 2636 - 2660 (2007/10/03)
To search for TNF-α (tumor necrosis factor α) converting enzyme (TACE) inhibitors, we designed a new class of macrocyclic hydroxamic acids by linking the P1 and P2′ residues of acyclic anti-succinate-based hydroxamic acids. A variety of residues including amide, carbamate, alkyl, sulfonamido, Boc-amino, and amino were found to be suitable P1 P1-P2′ linkers. With an N-methylamide at P3′, the 13-16-membered macrocycles prepared exhibited low micromolar activities in the inhibition of TNF-α release from LPS-stimulated human whole blood. Further elaboration in the P3′-P4′ area using the cyclophane and cyclic carbamate templates led to the identification of a number of potent analogues with IC50 values of ≤0.2 μM in whole blood assay (WBA). Although the P3′ area can accommodate a broad array of structurally diversified functional groups including polar residues, hydrophobic residues, and amino and carboxylic acid moieties, in both the cyclophane series and the cyclic carbamate series, a glycine residue at P3′ was identified as a critical structural component to achieve both good in vitro potency and good oral activity. With a glycine residue at P3′, an N-methylamide at P4′ provided the best cyclophane analogue, SL422 (WBA IC50 = 0.22 μM, LPS-mouse ED50 = 15 mg/kg, po), whereas a morpholinylamide at P4′ afforded the most potent and most orally active cyclic carbamate analogue, SP057 (WBAIC50 = 0.067 μM, LPS-mouse ED50 = 2.3 mg/kg, po). Further profiling for SL422 and SP057 showed that these macrocyclic compounds are potent TACE inhibitors, with Ki values of 12 and 4.2 nM in the porcine TACE assay, and are broad-spectrum MMP inhibitors. Pharmacokinetic studies in beagle dogs revealed that SL422 and SP057 are orally bioavailable, with oral bioavailabilities of 11% and 23%, respectively.
