Structure−Activity Relationship of New Anti-Hepatitis C Virus Agents: Heterobicycle−Coumarin Conjugates
作者:Johan Neyts、Erik De Clercq、Raghunath Singha、Yung Hsiung Chang、Asish R. Das、Subhasish K. Chakraborty、Shih Ching Hong、Shwu-Chen Tsay、Ming-Hua Hsu、Jih Ru Hwu
DOI:10.1021/jm801240d
日期:2009.3.12
For establishment of the structure-activity relationship, 19 heterobicycle-coumarin conjugated compounds with the -SCH2- linker were synthesized and found to possess significant antiviral activities. Prominent examples included imidazopyridine-coumarin 12c, purine-coumarin 12d, and benzoxazole-coumarin 14c, which inhibited HCV replication at an EC50 of 6.8, 2.0, and 12 mu M, respectively. The heteroatoms in bicycles
DBU-Promoted Deaminative Thiolation of 1<i>H</i>-Benzo[<i>d</i>]imidazol-2-amines and Benzo[<i>d</i>]oxazol-2-amines
deaminative thiolation reaction of 1H-benzo[d]imidazol-2-amines and benzo[d]oxazol-2-amines has been developed at room temperature conditions in a one-pot protocol. This practical three-component strategy represents a novel and environmentally friendly reaction pathway toward the straightforward synthesis of various 2-thio-1H-benzo[d]imidazoles and 2-thiobenzo[d]oxazolesusing carbon disulfide as a