title: Synthesis and in vitro anti-hepatitis B virus activities of some ethyl 6-bromo-5-hydroxy-1H-indole-3-carboxylates.
abstract: A series of ethyl 6-bromo-5-hydroxy-1H-indole-3-carboxylates, 8a-11v, were synthesized and evaluated for their anti-hepatitis B virus (HBV) activities in 2.2.15 cells. The selective indexes of inhibition on replication of HBV DNA of compounds 11s (>8.7) and 11t (10.8), which were introduced halogen on the phenyl ring at position 2, were greater than those of the other evaluated compounds including lamivudine (7.0). Compounds 9e, 9h, 9l, and 11v exhibited significant anti-HBV activities, and the IC(50) values on replication of HBV DNA of these compounds were 3.6, 6.37, 5.2, and 5.4 microg/ml, respectively, which were far more potent than the positive control lamivudine 228 microg/ml.
authors.affiliation: School of Pharmceutical Engineering, Shenyang Pharmceutical University, PR China.
authors.forename: Huifang
authors.initials: H
authors.lastname: Chai
authors.forename: Yanfang
authors.initials: Y
authors.lastname: Zhao
authors.forename: Chunshen
authors.initials: C
authors.lastname: Zhao
authors.forename: Ping
authors.initials: P
authors.lastname: Gong
mesh_terms: D000998:Antiviral Agents / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D001966:Bromine / Q000737:chemistry*; D002264:Carboxylic Acids / Q000138:chemical synthesis / Q000737:chemistry* / Q000494:pharmacology*; D002460:Cell Line; D006515:Hepatitis B virus / Q000187:drug effects*; D007211:Indoles / Q000737:chemistry*; D015394:Molecular Structure; D013329:Structure-Activity Relationship; D013440:Sulfides
chemical_list: D000998:Antiviral Agents; D001966:Bromine; D002264:Carboxylic Acids; D007211:Indoles; C086979:umifenovir; D013440:Sulfides