title: CJ-12,954 and its congeners, new anti-Helicobacter pylori compounds produced by Phanerochaete velutina: fermentation, isolation, structural elucidation and biological activities.
abstract: Seven new phthalide compounds with anti-Helicobacter pylori activities were isolated from the basidiomycete Phanerochaete velutina CL6387. The two most potent phthalide compounds, CJ-12,954 and CJ-13,014, have MICs of 5 ng/ml. The structure-activity relationship shows that the presence of a spiroketal part in addition to the phthalide part, greatly enhances the activity. The phthalide compounds appear to be specific for H. pylori, since they did not show antibacterial activities when tested against a panel of other microorganisms.
authors.affiliation: Central Research Division, Pfizer Pharmaceuticals, Inc., Aichi, Japan.
authors.forename: K A
authors.initials: KA
authors.lastname: Dekker
authors.forename: T
authors.initials: T
authors.lastname: Inagaki
authors.forename: T D
authors.initials: TD
authors.lastname: Gootz
authors.forename: K
authors.initials: K
authors.lastname: Kaneda
authors.forename: E
authors.initials: E
authors.lastname: Nomura
authors.forename: T
authors.initials: T
authors.lastname: Sakakibara
authors.forename: S
authors.initials: S
authors.lastname: Sakemi
authors.forename: Y
authors.initials: Y
authors.lastname: Sugie
authors.forename: Y
authors.initials: Y
authors.lastname: Yamauchi
authors.forename: N
authors.initials: N
authors.lastname: Yoshikawa
authors.forename: N
authors.initials: N
authors.lastname: Kojima
mesh_terms: D000900:Anti-Bacterial Agents; D000890:Anti-Infective Agents / Q000737:chemistry* / Q000378:metabolism / Q000494:pharmacology*; D001487:Basidiomycota / Q000737:chemistry / Q000378:metabolism*; D001572:Benzofurans / Q000737:chemistry / Q000378:metabolism / Q000494:pharmacology; D005285:Fermentation; D016480:Helicobacter pylori / Q000187:drug effects*; D008826:Microbial Sensitivity Tests; D015394:Molecular Structure; D013141:Spiro Compounds / Q000737:chemistry / Q000378:metabolism / Q000494:pharmacology; D013329:Structure-Activity Relationship
chemical_list: D000900:Anti-Bacterial Agents; D000890:Anti-Infective Agents; D001572:Benzofurans; C109706:CJ 12954; C109705:CJ 13014; D013141:Spiro Compounds; C082022:phthalide