title: 1,2,3-thiadiazole thioacetanilides. Part 2: Synthesis and biological evaluation of a new series of 2-{[4-(3,4-dichlorophenyl)-1,2,3-thiadiazol-5-yl]sulfanyl}acetanilides as HIV-1 inhibitors.
abstract: As part of our studies to discover new HIV-1 reverse transcriptase inhibitors, a series of 3,4-dichlorophenyl substituted 1,2,3-thiadiazole thioacetanilide (TTA=[(1,2,3-thiadiazole-5-yl)sulfanyl]acetanilide) derivatives were synthesized, and in vitro anti-HIV activity was evaluated. The results revealed that nearly half of the compounds show moderate-to-good inhibitory potency against HIV-1. In particular, compound 7f is highly potent, with an EC(50) value of 0.95+/-0.33 microM. The preliminary structure-activity relationship among the newly synthesized congeners is discussed.
authors.affiliation: Institute of Medicinal Chemistry, School of Pharmaceutical Sciences, Shandong University, No. 44 Wenhuaxi Road, Jinan 250012, P. R. China.
authors.forename: Peng
authors.initials: P
authors.lastname: Zhan
authors.forename: Xin-Yong
authors.initials: XY
authors.lastname: Liu
authors.forename: Zhen-Yu
authors.initials: ZY
authors.lastname: Li
authors.forename: Zeng-Jun
authors.initials: ZJ
authors.lastname: Fang
authors.forename: Christophe
authors.initials: C
authors.lastname: Pannecouque
authors.forename: Erik
authors.initials: E
authors.lastname: De Clercq
mesh_terms: D000083:Acetanilides / Q000138:chemical synthesis / Q000737:chemistry* / Q000494:pharmacology*; D019380:Anti-HIV Agents / Q000138:chemical synthesis / Q000737:chemistry* / Q000494:pharmacology*; D015658:HIV Infections / Q000188:drug therapy*; D015497:HIV-1 / Q000187:drug effects*; D006801:Humans; D018894:Reverse Transcriptase Inhibitors / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology; D013329:Structure-Activity Relationship; D013830:Thiadiazoles / Q000138:chemical synthesis / Q000737:chemistry* / Q000494:pharmacology*
chemical_list: D000083:Acetanilides; D019380:Anti-HIV Agents; D018894:Reverse Transcriptase Inhibitors; D013830:Thiadiazoles