title: Preparation of 2-, 3-, 4- and 7-(2-alkylcarbamoyl-1-alkylvinyl)benzo[b]furans and their BLT1 and/or BLT2 inhibitory activities.
abstract: Several 2-alkylcarbamoyl-1-alkylvinylbenzo[b]furans were designed to find a selective leukotriene B4 (LTB4) receptor antagonist. 2-(2-Alkylcarbamoyl-1-alkylvinyl)benzo[b]furans having a substituent group at the 3-position, 4-(2-alkylcarbamoyl-1-methylvinyl)benzo[b]furans having a substituent group at the 3-position, and 7-(2-alkylcarbamoyl-1-methylvinyl)benzo[b]furans and 3-(2-alkylcarbamoyl-1-alkylvinyl)benzo[b]furans were prepared and evaluated for LTB4 receptor (BLT1 and BLT2) inhibitory activities. (E)-3-Amino-4-[2-[2-(3,4-dimethoxyphenyl)ethylcarbamoyl]-1-methylvinyl]benzo[b]furan ((E)-17c) showed potent and selective inhibitory activity for BLT2. On the other hand, (E)-7-(2-diethylcarbamoyl-1-methylvinyl)benzo[b]furan ((E)-27a) showed potent inhibitory activity for both BLT1 and BLT2.
authors.affiliation: School of Pharmaceutical Sciences, Mukogawa Women's University, 11-68 Koshien Kyuban-cho, Nishinomiya 663-8179, Japan.
authors.forename: Kumiko
authors.initials: K
authors.lastname: Ando
authors.forename: Yoko
authors.initials: Y
authors.lastname: Kawamura
authors.forename: Yukiko
authors.initials: Y
authors.lastname: Akai
authors.forename: Jun-Ichi
authors.initials: J
authors.lastname: Kunitomo
authors.forename: Takehiko
authors.initials: T
authors.lastname: Yokomizo
authors.forename: Masayuki
authors.initials: M
authors.lastname: Yamashita
authors.forename: Shunsaku
authors.initials: S
authors.lastname: Ohta
authors.forename: Takahiro
authors.initials: T
authors.lastname: Ohishi
authors.forename: Yoshitaka
authors.initials: Y
authors.lastname: Ohishi
mesh_terms: D000818:Animals; D001572:Benzofurans / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D016466:CHO Cells; D006224:Cricetinae; D003412:Cricetulus; D018360:Crystallography, X-Ray; D004353:Drug Evaluation, Preclinical; D006801:Humans; D008958:Models, Molecular; D015394:Molecular Structure; D018102:Receptors, Leukotriene B4 / Q000037:antagonists & inhibitors* / Q000096:biosynthesis; D013237:Stereoisomerism; D013329:Structure-Activity Relationship
chemical_list: D001572:Benzofurans; C513240:LTB4R protein, human; C485878:LTB4R2 protein, human; D018102:Receptors, Leukotriene B4