title: Syntheses and structure-activity relationships of 5,6,7, 8-tetrahydro-5,5,8,8-tetramethyl-2-quinoxaline derivatives with retinoic acid receptor alpha agonistic activity.
abstract: In the course of our studies on retinoic acid receptor (RAR) agonists, we have designed and synthesized a series of quinoxaline derivatives. One of them, 4-[5-(5,6,7,8-tetrahydro-5,5,8, 8-tetramethyl-2-quinoxalinyl)-1H-2-pyrrolyl]benzoic acid (3a), which possesses a 2,5-disubstituted pyrrole moiety, showed selectivity for the RARalpha receptor and exerted highly potent cell-differentiating activity on HL-60 cells.
authors.affiliation: Tsukuba Basic Research Laboratories for Drug Discovery, Eisai Co., Ltd., 1-3, Tokodai 5-chome, Tsukuba-shi, Ibaraki, 300-2635, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Kikuchi
authors.forename: S
authors.initials: S
authors.lastname: Hibi
authors.forename: H
authors.initials: H
authors.lastname: Yoshimura
authors.forename: N
authors.initials: N
authors.lastname: Tokuhara
authors.forename: K
authors.initials: K
authors.lastname: Tai
authors.forename: T
authors.initials: T
authors.lastname: Hida
authors.forename: T
authors.initials: T
authors.lastname: Yamauchi
authors.forename: M
authors.initials: M
authors.lastname: Nagai
mesh_terms: D001565:Benzoates / Q000138:chemical synthesis* / Q000737:chemistry / Q000378:metabolism / Q000494:pharmacology; D001667:Binding, Competitive; D002454:Cell Differentiation / Q000187:drug effects; D002460:Cell Line; D006801:Humans; D011810:Quinoxalines / Q000138:chemical synthesis* / Q000737:chemistry / Q000378:metabolism / Q000494:pharmacology; D018168:Receptors, Retinoic Acid / Q000819:agonists* / Q000378:metabolism; D000072482:Retinoic Acid Receptor alpha; D012176:Retinoids / Q000138:chemical synthesis* / Q000737:chemistry / Q000378:metabolism / Q000494:pharmacology; D013329:Structure-Activity Relationship
chemical_list: D001565:Benzoates; D011810:Quinoxalines; C000607071:RARA protein, human; D018168:Receptors, Retinoic Acid; D000072482:Retinoic Acid Receptor alpha; D012176:Retinoids; C404926:ER 34617