DONGBU FINE CHEMICALS CO., LTD
Seoul, KR
DONGBU FINE CHEMICALS CO., LTD Patent applications | ||
Patent application number | Title | Published |
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20080234508 | Process for the Preparation of N(5)-Ethylglutamine - Disclosed relates to a process for preparing N(5)-ethylglutamines economically without a specific purification process via a simplified and safe process, in which glutamic acid derivatives, represented by formula 1, protected by phthaloyl groups react with ethylamine to cause an amidation and a deprotection reaction in turn under the same reaction condition, thus preparing N(5)-ethylglutamines. | 09-25-2008 |