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Featured researches published by Takeshi Oura.


Archive | 1986

Preparation process of alpha-l-aspartyl-l-phenylalanine methyl ester or hydrochloride thereof

Ryuichi Mita; Toshio Katoh; Akihiro Yamaguchi; Takeshi Oura; Chojiro Higuchi


Archive | 1989

Preparation and isolation of mineral acid salt of an amino acid methyl ester

Masanobu Ajioka; Chojiro Higuchi; Takeshi Oura; Toshio Katoh; Akihiro Yamaguchi


Archive | 1985

Preparation process of N-formyl-α-aspartyl phenylalanine

Ryuichi Mita; Toshio Katoh; Chojiro Higuchi; Takeshi Oura; Akihiro Yamaguchi


Archive | 1986

PRODUCTION OF ALPHA-L-ASPARTYL-L-PHENYLALANINE METHYL ESTER OR ITS HYDROCHLORIDE

Ryuichi Mita; Toshio Katoh; Chojiro Higuchi; Takeshi Oura; Akihiro Yamaguchi


Archive | 1991

Method for producing readily soluble crystalline alfa-L-aspartyl-L-phenylalanine methyl ester

Masanobu Ajioka; Chojiro Higuchi; Takeshi Oura; Toshio Katoh; Akihiro Yamaguchi


Archive | 1989

Preparation of n-protected alpha-l-aspartyl-l-phenylalanine methyl ester

Toshio Katoh; Chojiro Higuchi; Takeshi Oura; Masanobu Ajioka; Akihiro Yamaguchi


Archive | 1986

Process for the preparation of alpha-L-aspartyl-L-phenylalanine methyl ester.

Ryuichi Mita; Takeshi Oura; Toshio Katoh; Chojiro Higuchi; Akihiro Yamaguchi; Masanobu Ajioka


Archive | 1988

Isolation of alpha-l-aspartyl-l-phenylalanine methyl ester from aqueous medium

Ryuichi Mita; Takeshi Oura; Toshio Katoh; Chojiro Higuchi; Akihiro Yamaguchi; Masanobu Ajioka


Archive | 1987

Preparation process of α-L-aspartyl-L-phenylalanine methyl ester or hydrochloride thereof

Ryuichi Mita; Toshio Katoh; Chojiro Higuchi; Takeshi Oura; Akihiro Yamaguchi


Archive | 1985

Process for the preparation of n-formyl-alpha-aspartyl phenylalanine

Ryuichi Mita; Chojiro Higuchi; Toshio Katoh; Takeshi Oura; Akihiro Yamaguchi

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