title: Lambertellols A and B, novel 3,4-dihydronaphthalen-1(2H)-ones with spiro-butenolide produced by Lambertella sp.1346.
abstract: [structure: see text] Lambertella sp. 1346 was found to produce lambertellols A (1) and B (2) carrying a novel dihydronaphthalen-1(2H)-ones with spiro-1-furan-2(5'H)-one. The spiro-lactone ring moiety of both 1 and 2 were easily migrated to afford lambertellin, a known metabolite of Lambertella corni-maris. The absolute stereochemistry of these compounds was established on the basis of CD spectrum after chemical derivatization.
authors.affiliation: Faculty of Agriculture and Bioscience, Hirosaki University, 3-Bunkyo-cho, Hirosaki, 036-8561, Japan.
authors.forename: Takanori
authors.initials: T
authors.lastname: Murakami
authors.forename: Yoshifumi
authors.initials: Y
authors.lastname: Morikawa
authors.forename: Masaru
authors.initials: M
authors.lastname: Hashimoto
authors.forename: Toshikatsu
authors.initials: T
authors.lastname: Okuno
authors.forename: Yukio
authors.initials: Y
authors.lastname: Harada
mesh_terms: D015107:4-Butyrolactone / Q000031:analogs & derivatives* / Q000737:chemistry*; D001203:Ascomycota / Q000737:chemistry*; D015394:Molecular Structure; D009281:Naphthalenes / Q000737:chemistry*; D013141:Spiro Compounds / Q000737:chemistry*
chemical_list: D009281:Naphthalenes; D013141:Spiro Compounds; C492699:lambertellol A; C492700:lambertellol B; C004511:butenolide; D015107:4-Butyrolactone