Taiyo Kagaku Co., Ltd.

Gifu University

Mamoru Koketsu

Lekh Raj Juneja

Hideharu Ishihara

Hiroshi Kawanami

Nagataka Yamazaki

Mujo Kim

Masaru Fujiki

Hajime Hatta

Teruhiko Nitoda

Masakazu Nishizono

Yuko Enoki

Katsuya Nishimoto

A process for preparing novel 1,3-selanazolin derivatives represented by chemical formula 1 at high yield. This process includes a step of reacting a selenourea and an &#x3b1;-haloacyl halide in a solvent and in the presence of a catalyst 

1,3-selenazolin derivatives and process for preparing the same

A selenating reagent obtained by reacting lithium aluminum hydride with selenium powder in an organic solvent. In addition, a method for preparing a selenating reagent includes reacting lithium aluminum hydride with selenium powder in an organic solvent. Also, a method of preparing a selenium-containing product includes reacting the selenating reagent, prepared as stated, with at least one second compound which may be acyl chloride.

Lithium aluminum hydride-based selenating reagent and preparation methods using same

Pharmaceutical composition containing sialic acid derivatives

The present invention is directed to a method for producing crude sialic acid, comprising hydrolysis of a delipidated egg yolk and a method for producing high purity sialic acid, which comprises desalting a solution containing sialic acid obtainable by hydrolyzing a delipidated egg yolk, adsorbing sialic acid to an anion exchange resin and then eluting said sialic acid. The present invention makes it possible to produce and purify sialic acid from delipidated egg yolk on an industrial scale.

Method for production of sialic acid

Growing community of inventors

Gifu, Japan

Mamoru Koketsu