title: Regioselective inter- and intramolecular formal [4+2] cycloaddition of cyclobutanones with indoles and total synthesis of (±)-aspidospermidine.
authors.affiliation: School of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical, and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan.
authors.forename: Mizuki
authors.initials: M
authors.lastname: Kawano
authors.forename: Takaaki
authors.initials: T
authors.lastname: Kiuchi
authors.forename: Shoko
authors.initials: S
authors.lastname: Negishi
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Tanaka
authors.forename: Takaya
authors.initials: T
authors.lastname: Hoshikawa
authors.forename: Jun-ichi
authors.initials: J
authors.lastname: Matsuo
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Ishibashi
mesh_terms: D002384:Catalysis; D061565:Cycloaddition Reaction; D003503:Cyclobutanes / Q000737:chemistry*; D026121:Indole Alkaloids / Q000138:chemical synthesis* / Q000737:chemistry; D007211:Indoles / Q000737:chemistry*; D058116:Lewis Acids; D011804:Quinolines / Q000138:chemical synthesis* / Q000737:chemistry; D013237:Stereoisomerism
chemical_list: D003503:Cyclobutanes; D026121:Indole Alkaloids; D007211:Indoles; D058116:Lewis Acids; D011804:Quinolines; C409672:aspidospermidine