An asymmetric synthesis of an acetonide form of (−)-cis-1,2-dihydroxyindolizidineHiroki Takahata; Yasunori Banba; Takefumi Momose · 1992

Asymmetric synthesis of 1-hydroxyindolizidines, biosynthetic precursors to the toxic indolizidine alkaloids slaframine and swainsonineHiroki Takahata; Yasunori Banba; Takefumi Momose · 1990

Electrophilic olefin heterocyclization in organic synthesis. Stereoselective intramolecular amidomercuration of .GAMMA.-hydroxy-.DELTA.,.EPSILON.-unsaturated urethanes.TAKAHATA, Hiroki; TAJIMA, Mayumi; BANBA, Yasunori; MOMOSE, Takefumi · CHEMICAL & PHARMACEUTICAL BULLETIN · 1989

The shortest synthesis of optically active Geissman-Waiss lactone, a key synthetic intermediate for necine basesHiroki Takahata; Yasunori Banba; Takefumi Momose · 1991

Asymmetric intramolecular amidation of N-(tert-butoxycarbonyl)-3-hydroxy-4-pentenylamine. A new entry to chiral building blocks for the synthesis of biologically active nitrogen-containing compoundsTakahata, Hiroki; Banba, Yasunori; Tajima, Mayumi; Momose, Takefumi · The Journal of Organic Chemistry · 1991