KR850005409A - Method for preparing N-acyl-derivatives of aspartame - Google Patents

Method for preparing N-acyl-derivatives of aspartame Download PDF

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Publication number
KR850005409A
KR850005409A KR1019850000210A KR850000210A KR850005409A KR 850005409 A KR850005409 A KR 850005409A KR 1019850000210 A KR1019850000210 A KR 1019850000210A KR 850000210 A KR850000210 A KR 850000210A KR 850005409 A KR850005409 A KR 850005409A
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South Korea
Prior art keywords
phenyl
methyl ester
solvent
protected
concentration
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KR1019850000210A
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Korean (ko)
Inventor
아우리크치오 세르지오 (외 1)
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지오바니 다르미니오 몽뽀르떼
피에렐에스. 피. 에이.
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Application filed by 지오바니 다르미니오 몽뽀르떼, 피에렐에스. 피. 에이. filed Critical 지오바니 다르미니오 몽뽀르떼
Publication of KR850005409A publication Critical patent/KR850005409A/en

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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D207/00Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K5/00Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof
    • C07K5/04Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof containing only normal peptide links
    • C07K5/06Dipeptides
    • C07K5/06104Dipeptides with the first amino acid being acidic
    • C07K5/06113Asp- or Asn-amino acid
    • C07K5/06121Asp- or Asn-amino acid the second amino acid being aromatic or cycloaliphatic
    • C07K5/0613Aspartame
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D209/00Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D209/02Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring
    • C07D209/44Iso-indoles; Hydrogenated iso-indoles
    • C07D209/48Iso-indoles; Hydrogenated iso-indoles with oxygen atoms in positions 1 and 3, e.g. phthalimide

Abstract

내용 없음No content

Description

아스파르테임의 N-아실-유도체의 제조방법Method for preparing N-acyl-derivatives of aspartame

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

Claims (12)

하기 일반식(Ⅰ)의 N-보호-아스파르트산 무수물 첨가제를 사용하지 않고 하기 일반식(Ⅱ)의 L-페닐-알라닌 메틸 에스테르와 반응시켜 하기 일반식(Ⅲ)의 N-보호 -α-아스파르테임을 제조하는 방법에 있어서, 반응을N-protection-α-asth of the following general formula (III) by reacting with L-phenyl-alanine methyl ester of the following general formula (II) without using the N-protection-aspartic anhydride additive of the following general formula (I) In the process for preparing the partime, the reaction (a) L-페닐-알라닌 메틸 에스테르의 정상 농도를 0.2M이하로 유지시킨 비극성 또는 약한 극성 용매존재하에 행하거나, 또는 (b) N-보호-아스파르트산 무수물의 농도를 0.1M이상으로 유지시킨 2약염기성 중성 용매 존재하에 행함을 특징으로 하는 N-보호-α-아스파르테임의 제조방법.(a) in the presence of a nonpolar or weak polar solvent in which the normal concentration of L-phenyl-alanine methyl ester is kept below 0.2 M, or (b) the concentration of N-protected-aspartic anhydride is maintained above 0.1 M. A process for producing N-protected-α-aspartame, which is carried out in the presence of a weakly basic neutral solvent. 상기 식중, R은 수소원자이고, R¹는포르밀, 벤질옥시카르보닐, (C₁-C₄)알킬, (C₁_₄)알콕시, 할로, 니트로 및 트리플루오로메틸기 중에서 선정된 1또는 2개의 기로 페닐기를 치환시킨 벤질옥시카르보닐 및 tert-부톡시카르보닐기이거나, 또느 R및 R₁는 인접질소 원자와 함께 결합된 프탈이미도기이다.Wherein R is a hydrogen atom and R¹ is a phenyl group substituted with one or two groups selected from formyl, benzyloxycarbonyl, (C₁-C₄) alkyl, (C₁_₄) alkoxy, halo, nitro and trifluoromethyl groups Benzyloxycarbonyl and tert-butoxycarbonyl groups, or R and R 'are phthalimido groups bonded together with adjacent nitrogen atoms. 제1항에 있어서, 비극성 또는 약한 극성 용매가 할로겐 원자들에 의하여 임의로 치환된 지방족 또는 방향족 탄화수소 중에서 선정된 용매인 것을 특징으로 하는 방법.The method of claim 1 wherein the nonpolar or weak polar solvent is a solvent selected from aliphatic or aromatic hydrocarbons optionally substituted by halogen atoms. 제2항에 있어서, 용매가 벤젠, 톨루엔, 크실렌, 염화메틸렌 및 1,2-디클로로-에탄 중에서 선정됨을 특징으로 하는 방법.The process of claim 2 wherein the solvent is selected from benzene, toluene, xylene, methylene chloride and 1,2-dichloro-ethane. 제2항 및 제3항에 있어서, L-페닐-알라닌 메틸 에스테르의 농도율 0.05M이하로 유지시킴을 특징으로 하는 방법.The method according to claim 2 or 3, wherein the concentration of L-phenyl-alanine methyl ester is maintained at 0.05 M or less. 제1항에 있어서, 약염기성 중성 용매가 에테르류 중에서 선정됨을 특징으로 하는 방법.The method of claim 1 wherein the weakly basic neutral solvent is selected from ethers. 제2,3 및 4항에 있어서, L-페닐-알라닌 메틸 에스테르의 정상 농도를 희석시킨 용액 중에서 조절하거나, 용매와 N-보호-아스파르트산 무수물의 혼합물에 L-페닐-알라닌의 메틸에스테르를 점차적으로 첨가시켜 소기의 저농도로 유지시킴을 특징으로 하는 방법.5. The methyl ester of L-phenyl-alanine according to claim 2, 3 or 4 is adjusted in a diluted solution of normal concentration of L-phenyl-alanine methyl ester or gradually added to the mixture of solvent and N-protected-aspartic anhydride. It is added to maintain the desired low concentration. 제5항에 있어서, N-보호-아스파르트산 무수물의 농도를 0.2M이상으로 유지시킴을 특징으로 하는 방법.The method of claim 5, wherein the concentration of N-protected-aspartic anhydride is maintained at 0.2 M or higher. 전항중의 어느 항에 있어서, N-보호-아스파르트산무수물/L-페페-알라닌 메틸 에스테르의 비율을 1내지 1.5로 사용함을 특징으로 하는 방법.The method according to claim 1, wherein the ratio of N-protected-aspartic anhydride / L-pepe-alanine methyl ester is used at 1 to 1.5. 전항중의 어느항에 있어서, 반응을0°내지 100℃의 온도에서 행함을 특징으로 하는 방법.The method according to any one of the preceding claims, characterized in that the reaction is carried out at a temperature of 0 ° to 100 ° C. 전항중의 어느항에 있어서, R가 수소이고, R1이 포르밀 또는 벤질옥시카르보닐기인 것을 특징으로 하는 방법.The method according to any one of the preceding claims, wherein R is hydrogen and R 1 is a formyl or benzyloxycarbonyl group. 제10항에 있어서, R₁이 포르밀기인 것을 특징으로 하는 방법.The method of claim 10, wherein R 'is a formyl group. N-3-프탈이미도-숙시노일-페닐-알라닌 메틸 에스테르.N-3-phthalimido-succinoyl-phenyl-alanine methyl ester. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019850000210A 1984-01-26 1985-01-15 Method for preparing N-acyl-derivatives of aspartame KR850005409A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT19324A/84 1984-01-26
IT8419324A IT8419324A0 (en) 1984-01-26 1984-01-26 PROCEDURE FOR THE SYNTHESIS OF N-ACYLIC DERIVATIVES OF ASPARTAME.

Publications (1)

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KR850005409A true KR850005409A (en) 1985-08-26

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KR (1) KR850005409A (en)
AU (1) AU3720584A (en)
FR (1) FR2558838A1 (en)
GB (1) GB2153365A (en)
IT (1) IT8419324A0 (en)
ZA (1) ZA85229B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2073162T3 (en) * 1990-03-12 1995-08-01 Nutrasweet Co METHOD FOR INCREASING THE ALPHA / BETA RATIO IN AN ASPARTAMA CONDENSATION REACTION.

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1042481A (en) * 1964-06-25 1966-09-14 Ici Ltd Dipeptide derivatives
CH553751A (en) * 1970-05-19 1974-09-13 Stamicarbon METHOD FOR PRODUCING ASPARTYLAMINO ACID ESTERS.
GB1339101A (en) * 1972-01-26 1973-11-28 Searle & Co Production of phenylalanine derivatives
US4333872A (en) * 1980-05-27 1982-06-08 Chimicasa Gmbh Method of producing α-L-aspartyl-L-phenylalanine methylester
FR2524877A1 (en) * 1982-04-07 1983-10-14 Human Pharm Sa Laboratoires NEW PRODUCTION PROCESS OF ASPARTAME
IT1155060B (en) * 1982-09-02 1987-01-21 Sirac Srl PROCEDURE FOR THE PREPARATION OF ALCHYL ESTERS OF ALPHA-L-ASPARTYL-L-PHENYLALANINE

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FR2558838A1 (en) 1985-08-02
ZA85229B (en) 1985-08-28
IT8419324A0 (en) 1984-01-26
GB8432449D0 (en) 1985-02-06
GB2153365A (en) 1985-08-21
AU3720584A (en) 1985-08-01

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