JPS5780367A - Preparation of tryptophan and its derivative - Google Patents

Preparation of tryptophan and its derivative

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Publication number
JPS5780367A
JPS5780367A JP15595780A JP15595780A JPS5780367A JP S5780367 A JPS5780367 A JP S5780367A JP 15595780 A JP15595780 A JP 15595780A JP 15595780 A JP15595780 A JP 15595780A JP S5780367 A JPS5780367 A JP S5780367A
Authority
JP
Japan
Prior art keywords
tryptophan
derivative
formula
raw material
expressed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP15595780A
Other languages
Japanese (ja)
Inventor
Shinzo Imamura
Hiroyoshi Kuramoto
Haruyo Satou
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP15595780A priority Critical patent/JPS5780367A/en
Publication of JPS5780367A publication Critical patent/JPS5780367A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To obtain a tryptophan derivative, particularly microbiologically industrially and advantageously, by hydrolyzing an N-(substituted methylene) tryptophan ester derivative as a raw material under basic conditions.
CONSTITUTION: An N-(substituted methylene)tryptophan ester derivative expressed by formula I[R1 is H, lower alkyl or (un)substituted aryl; R2 is (un) substituted aryl; R3 is lower alkyl]as a raw material is hydrolyzed in the presence of a basic compound, e.g. sodium hydroxide, to give a tryptophan derivative expressed by formula II. The resultant compound expressed by formula II is then hydrolyzed in the presence of an acid to afford the tryptophan and treated by a microorganism to give L-tryptophan easily without passing through many troublesome steps. By-products formed in preparing the tryptophan are reusable as the starting raw material.
COPYRIGHT: (C)1982,JPO&Japio
JP15595780A 1980-11-07 1980-11-07 Preparation of tryptophan and its derivative Pending JPS5780367A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15595780A JPS5780367A (en) 1980-11-07 1980-11-07 Preparation of tryptophan and its derivative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15595780A JPS5780367A (en) 1980-11-07 1980-11-07 Preparation of tryptophan and its derivative

Publications (1)

Publication Number Publication Date
JPS5780367A true JPS5780367A (en) 1982-05-19

Family

ID=15617224

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15595780A Pending JPS5780367A (en) 1980-11-07 1980-11-07 Preparation of tryptophan and its derivative

Country Status (1)

Country Link
JP (1) JPS5780367A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5214141A (en) * 1991-01-18 1993-05-25 Fuji Photo Film Co., Ltd. Azomethine compound and photographic dye comprising the azomethine compound

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5214141A (en) * 1991-01-18 1993-05-25 Fuji Photo Film Co., Ltd. Azomethine compound and photographic dye comprising the azomethine compound

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