Ryoutarou Ibuka

A novel and efficient macrolactonization of ω-hydroxycarboxylic acids using 2-methyl-6-nitrobenzoic anhydride (MNBA)

Isamu Shiina, Mari Kubota, Ryoutarou Ibuka · Tetrahedron Letters · 2002 · 274 citations

Pharmacy, Medicinal Chemistry, Biocatalysis +3

A New Condensation Reaction for the Synthesis of Carboxylic Esters from Nearly Equimolar Amounts of Carboxylic Acids and Alcohols Using 2-Methyl-6-nitrobenzoic Anhydride

Isamu Shiina, Ryoutarou Ibuka, Mari Kubota · Chemistry Letters · 2002 · 196 citations

Natural Sciences, Chemistry, Catalysis +7

Enantioselective Total Synthesis of Octalactin A Using Asymmetric Aldol Reactions and a Rapid Lactonization To Form a Medium‐Sized Ring

Isamu Shiina, Minako Hashizume, Yu‐suke Yamai et al. · Chemistry - A European Journal · 2005 · 100 citations

Pharmacy, Chemistry, Medicinal Chemistry +10

Asymmetric total synthesis of octalactin B using a new and rapid lactonization

Isamu Shiina, Hiromi Oshiumi, Minako Hashizume et al. · Tetrahedron Letters · 2003 · 56 citations

Pharmacy, Biochemistry, Chemistry +10

An Effective Method for the Preparation of Chiral Polyoxy 8-Membered Ring Enone Corresponding to the B Ring of Taxol

Isamu Shiina, Jun Shibata, Ryoutarou Ibuka et al. · Bulletin of the Chemical Society of Japan · 2001 · 32 citations

Pharmacy, Chemistry, Medicinal Chemistry +6