Design and synthesis of 2,3,4,9-tetrahydro-1H-carbazole and 1,2,3,4-tetrahydro-cyclopenta[b]indole derivatives as non-nucleoside inhibitors of hepatitis C virus NS5B RNA-dependent RNA polymerase.
A novel class of HCV NS5B RNA dependent RNA polymerase inhibitors containing 2,3,4,9-tetrahydro-1H-carbazole and 1,2,3,4-tetrahydro-cyclopenta[b]indole scaffolds were designed and synthesized. Optimization of the aromatic region showed preference for 5,8-disubstitution pattern in both the scaffolds examined while favoring the n-propyl moiety for the C-1 position. 1,2,3,4-tetrahydro-cyclopenta[b]indole scaffold was slightly more potent than the corresponding 2,3,4,9-tetrahydro-1H-carbazole and analogue 36 displayed an IC50 of 550 nM against HCV NS5B enzyme.
Gopalsamy
Ariamala
A
Chemical and Screening Sciences, Wyeth Research, Pearl River, NY 10965, USA. gopalsa@wyeth.com
Shi
Mengxiao
M
Ciszewski
Gregory
G
Park
Kaapjoo
K
Ellingboe
John W
JW
Orlowski
Mark
M
Feld
Boris
B
Howe
Anita Y M
AY
D000998:Antiviral Agents / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D002227:Carbazoles / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology; D003517:Cyclopentanes / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology; D015195:Drug Design; D007211:Indoles / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology; D008826:Microbial Sensitivity Tests; D015394:Molecular Structure; D012324:RNA-Dependent RNA Polymerase / Q000037:antagonists & inhibitors*; D018894:Reverse Transcriptase Inhibitors / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D013329:Structure-Activity Relationship; D017361:Viral Nonstructural Proteins / Q000187:drug effects*
C511201:1,2,3,4-tetrahydro-cyclopenta(b)indole; C511202:2,3,4,9-tetrahydro-1H-carbazole; D000998:Antiviral Agents; D002227:Carbazoles; D003517:Cyclopentanes; D007211:Indoles; D018894:Reverse Transcriptase Inhibitors; D017361:Viral Nonstructural Proteins; C087036:NS-5 protein, hepatitis C virus; D012324:RNA-Dependent RNA Polymerase