478490-01-6Relevant articles and documents
Synthesis, Structure–Activity Relationships, and Antiviral Profiling of 1-Heteroaryl-2-Alkoxyphenyl Analogs as Inhibitors of SARS-CoV-2 Replication
Ahmad, Shamshad,Arzel, Philippe,Bardiot, Dorothée,Canard, Bruno,Castermans, Karolien,Chaltin, Patrick,De Jonghe, Steven,Decroly, Etienne,Delpal, Adrien,Eydoux, Cecilia,Guillemot, Jean-Claude,Hilgenfeld, Rolf,Jochmans, Dirk,Klaassen, Hugo,Koukni, Mohamed,Lescrinier, Eveline,Leyssen, Pieter,Lyoo, Heyrhyoung,Marchand, Arnaud,Neyts, Johan,Robinson, Colin,Snijder, Eric J.,Sun, Xinyuanyuan,Vangeel, Laura,Wanningen, Patrick,Zhang, Linlin,Zwaagstra, Marleen,van Hemert, Martijn J.,van Kuppeveld, Frank
, (2022/02/11)
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the causative agent of COVID-19, has led to a pandemic, that continues to be a huge public health burden. Despite the availability of vaccines, there is still a need for small-molecule antiviral drugs. In an effort to identify novel and drug-like hit matter that can be used for subsequent hit-to-lead optimization campaigns, we conducted a high-throughput screening of a 160 K compound library against SARS-CoV-2, yielding a 1-heteroaryl-2-alkoxyphenyl analog as a promising hit. Antiviral profiling revealed this compound was active against various beta-coronaviruses and preliminary mode-of-action experi-ments demonstrated that it interfered with viral entry. A systematic structure–activity relationship (SAR) study demonstrated that a 3-or 4-pyridyl moiety on the oxadiazole moiety is optimal, whereas the oxadiazole can be replaced by various other heteroaromatic cycles. In addition, the alkoxy group tolerates some structural diversity.
1,2,4-oxadiazole derivatives and their therapeutic use
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Page/Page column 38, (2010/07/08)
New derivatives of general formula (I), or pharmaceutically acceptable salts or N-oxides thereof wherein, A is selected from the group consisting of -N-, -O- and -S-; B and C are independently selected from the group consisting of-N- and -O-, with the proviso that at least two of A, B and C are nitrogen atoms; G1 is selected from the group consisting of -CH2-, -NH- and -O-; G2 is selected from the group consisting of -NR4- and -O-; R1 represents: ? a 8 to 10 membered bicyclic N-containing heteroaryl group optionally substituted with a C1-4 carboxyalkyl group or a C1-4 aminoalkyl group, ? a pyridyl group optionally substituted with one or more substituents selected from hydroxy groups, C1-4 alkyl groups, C1-4 carboxyalkyl groups, C1-4 haloalkyl groups, C1-4 alkoxy groups, amino groups, C1-4 aminoalkyl groups and C1-4 aminoalkoxy groups, ? a pyridone group substituted with one or more C1-4 alkyl groups; C1-4 haloalkyl groups or C1-4 aminoalkyl groups, or ? a group of formula: wherein: ? Ra represents a hydrogen atom, a halogen atom, a C1-4 alkyl group, C3-4 cycloalkyl group or a -CF3 group; ? Rb represents a hydrogen atom, a halogen atom, a C14 alkyl group, a -CF3 group or a C1-4 alkoxy group; ? Rd represents a hydrogen atom, a C1-4 alkyl group or a C1-4 alkoxy group; ? Rc represents: ○ a hydrogen atom, a C1-4 hydroxyalkyl group, a C1-4 aminoalkyl group which is optionally substituted with one or more substituents selected from halogen atoms, hydroxy groups and -CF3 groups; ○ a 4 to 6-membered saturated N-containing heterocyclic ring optionally substituted with a C1-2 carboxyalkyl group; ○ -(CH2)(0-4)-C(O)OR', -(CH2)(0-4)-C(O)NR'R", -(CH2)(0-4)-NHC(O)R", -S(O)2NR'R", -O-(CH2)(2-4)NR'R", -O-(CH2)(1-4)C(O)OR", -O-(CH2)(1-4)-C(O)NR'R", -(CH2)(0-4)-NR'R", -(CH2)(0-4)-CONHS(O)2R', -(CH2)(0-4)-NHS(O)2R' or -(CH2)(0-3)-N H-(CH2)(1-3)-(NH)(0-1)S(O)2R' wherein, ■ R' represents a hydrogen atom or a C1-4 alkyl group, ■ R" represents a hydrogen atom, a C1-4 alkyl group, a C3-4 cycloalkyl group, a C1-4 carboxyalkyl group, a C1-4 haloalkyl group, a C1-4 hydroxyalkyl group or a 6 membered, saturated N-containing heterocyclic ring, or ■ R' and R" together with the nitrogen atom to which they are attached from a 4 to 6 membered heterocyclic group which contains, as heteroatoms, one N atom and, optionally, one further atom selected from N and O, and which is optionally substituted with a carboxy or a C1-4 carboxyalkyl group, or Rc together with Rd form a C5-6 cycloalkyl group optionally substituted by a -NHRf group, wherein Rf is selected from the group consisting of a hydrogen atom and a carboxymethyl group; R2 and R3 are independently selected from the group consisting of hydrogen atoms, halogen atoms and C1-4 alkyl groups; and R4 is selected from the group consisting of a hydrogen atom, a phenyl group, a C3-4 cycloalkyl-C1-4 alkyl group, C1-4 aminoalkyl group, C1-4 haloalkyl group and a linear or branched C1-4 alkyl group which is optionally substituted by a phenyl or a pyridyl group.
