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CN102718833A - Preparation method of glycyl-tyrosine - Google Patents

Preparation method of glycyl-tyrosine Download PDF

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Publication number
CN102718833A
CN102718833A CN2012101518381A CN201210151838A CN102718833A CN 102718833 A CN102718833 A CN 102718833A CN 2012101518381 A CN2012101518381 A CN 2012101518381A CN 201210151838 A CN201210151838 A CN 201210151838A CN 102718833 A CN102718833 A CN 102718833A
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China
Prior art keywords
tyrosine
glycyl
controlled
temperature
water
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Pending
Application number
CN2012101518381A
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Chinese (zh)
Inventor
邢将军
华俊国
周红航
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JIANGSU CHENGXIN PHARMACEUTICAL CO Ltd
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JIANGSU CHENGXIN PHARMACEUTICAL CO Ltd
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Priority to CN2012101518381A priority Critical patent/CN102718833A/en
Publication of CN102718833A publication Critical patent/CN102718833A/en
Pending legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The invention relates to a preparation method of glycyl-tyrosine, which comprises the following steps: using L-tyrosine, toluene and water raw material, adding chloroacetamide and sodium hydroxide drop by drop under certain condition, adding hydrochloric acid drop by drop to control the pH value after reacting, then carrying out an aminolysis at normal pressure, heating and concentrating, washing and centrifuging to obtain the glycyl-tyrosine crude product, dissolving, filtering, crystallizing, carrying out pumping filtration and drying to obtain glycyl-tyrosine. The glycyl-tyrosine crystal prepared by the preparation method has high purity, and is beneficial to further purifying and refining glycyl-tyrosine.

Description

A kind of preparation method of glycyl-tyrosine
Technical field
The invention belongs to chemical technology field, particularly the preparation method of glycyl-tyrosine.
Background technology
The two peptides of the amino acid that uses clinically (15) (2) injection liquid provides amino acid as the parenteral nutrition preparation through parenteral nutrition.Being applied to can not be oral or through enteron aisle supply nutrition, and the nutrition patient that can not satisfy the demand, and particularly is in the metabolic patient of high de-agglomeration.Wherein amino acid exists with two peptide forms of glycyl-Stimulina, glycyl-tyrosine (Glycyl-L-Tyrosine Dihydratc is called for short sweet-junket dipeptides).Two kinds of two peptides (glycyl-Stimulina, glycyl-tyrosine) are used to provide Stimulina and tyrosine to promote proteinic synthesizing.Two peptide species directly are decomposed into glycocoll, Stimulina, three kinds of total free aminoacidss of tyrosine in vivo fully.The two peptides of amino acid (15) (2) injection liquid promotes protein synthesis in vivo and regulates nitrogen equilibrium, makes full use of in vivo for guaranteeing amino acid and two peptide, should give enough energy (glucide, fat), ionogen, trace element and VITAMINs etc. simultaneously.
Preparing method's difficulty of glycyl-tyrosine is high; Patent 200810239035.5 discloses a kind of process for purification of Glycyl-L-tyrosine; Wherein in the Glycyl-L-tyrosine production technology of crude, adopt strong aqua, water, bicarbonate of ammonia, N-chloracetyl-L-tyrosine to generate the Glycyl-L-tyrosine bullion under certain condition, adopt the Glycyl-L-tyrosine bullion yield of this process method preparation low; Cost is high, is not easy to realize industriallization.
Summary of the invention
Goal of the invention: in order to solve above-mentioned technical barrier, the present invention provides a kind of preparation method of glycyl-tyrosine.
The technical scheme that the present invention adopts: a kind of preparation method of glycyl-tyrosine may further comprise the steps:
1, get L tyrosine, toluene, water and be positioned in the vial and stir, external ice-water bath, temperature is controlled at 0~5 ℃; Dropping sodium solution drips process temperature and is controlled at 0~5 ℃, after dropwising, and stirring reaction 30~40 minutes;
2, after upward the step reaction finishes, drip chloroacetyl chloride, while dropping sodium solution, temperature is controlled at-5 ℃~5 ℃, and solution PH is controlled at 11~13;
3, after upward the step dropping finishes, stirred 30~60 minutes, left standstill then 1~2 hour;
4, go up after the step leaves standstill end, liquid is divided into two phases up and down, and lower floor is a water, separates two phases up and down, water is poured in the triangular flask into slow dripping hydrochloric acid, control solution PH=2.5~3.5; Treat that crystal separates out, leave standstill growing the grain after 1~3 hour,, obtain chloracetyl-tyrosine solid through centrifugal, subsequent use;
5, will go up subsequent use chloracetyl-tyrosine solid of step and put into bottle, add bicarbonate of ammonia, water, stirring and dissolving; Heat temperature raising, normal pressure ammonolysis reaction 6~8 hours, temperature is controlled at 40~50 ℃;
6, after going on foot the ammonolysis reaction end on, continue heating and concentrate, temperature is controlled at 70~80 ℃;
7, behind the last EOS, with the liquid concentrator cooling, crystallization is filtered, and Tc is controlled at-5 ℃~10 ℃; The crystal of separating out with organic solvent washing 1~3 time, through centrifugal, is obtained glycyl-tyrosine bullion.
According to the glycyl-tyrosine of above-mentioned steps 7 gained,, comprise dissolving, filtration, crystallization, suction filtration, drying step also through refinement treatment.
Useful effect: synthetic route of the present invention is simple, and supplementary material cheaply is easy to get, and equipment requirements is simple, and the solvent recuperation utilization ratio is high, and cost is low, is easy to realize suitability for industrialized production, can create higher economic value.
Embodiment
Below in conjunction with embodiment the present invention is described further, but protection scope of the present invention is not limited to following embodiment.
Embodiment one
Get L tyrosine 24g, toluene 52g, water 24g and be positioned in the vial and stir, external ice-water bath, temperature is controlled at 0 ℃; Dropping sodium solution drips process temperature and is controlled at 0 ℃, after dropwising, and stirring reaction 30 minutes; Drip chloroacetyl chloride 24g, while dropping sodium solution, temperature is controlled at-5 ℃, and solution PH is controlled at 11; After dripping end, stirred 30 minutes, left standstill then 1 hour; After leaving standstill end, take off a layer water and pour in the triangular flask, slowly dripping hydrochloric acid is controlled solution PH=2.5; Treat that crystal separates out, leave standstill growing the grain after 1 hour, through centrifugal, obtain chloracetyl-tyrosine solid, the chloracetyl-tyrosine solid 38.5g that gets gained puts into the bulb bottle, adds bicarbonate of ammonia 19.5g, water, stirring and dissolving; Heat temperature raising, normal pressure ammonolysis reaction 6 hours, temperature is controlled at 40 ℃; After last step ammonolysis reaction finishes, continue heating and concentrate, temperature is controlled at 70 ℃; With the liquid concentrator cooling, crystallization is filtered then, and Tc is controlled at-5 ℃; The crystal of separating out with organic solvent washing 1 time, through centrifugal, is obtained glycyl-tyrosine bullion, and yield is about 70%.
Embodiment two
Get L tyrosine 240g, toluene 520g, water 240g and be positioned in the vial and stir, external ice-water bath, temperature is controlled at 5 ℃; Dropping sodium solution drips process temperature and is controlled at 5 ℃, after dropwising, and stirring reaction 35 minutes; Drip chloroacetyl chloride 240g, while dropping sodium solution, temperature is controlled at 5 ℃, and solution PH is controlled at 13; After dripping end, stirred 50 minutes, left standstill then 1.5 hours; After leaving standstill end, take off a layer water and pour in the triangular flask, slowly dripping hydrochloric acid is controlled solution PH=3.0; Treat that crystal separates out, leave standstill growing the grain after 2 hours, through centrifugal, obtain chloracetyl-tyrosine solid, the chloracetyl-tyrosine solid 400g that gets gained puts into the bulb bottle, adds bicarbonate of ammonia 200g, water, stirring and dissolving; Heat temperature raising, normal pressure ammonolysis reaction 7 hours, temperature is controlled at 50 ℃; After last step ammonolysis reaction finishes, continue heating and concentrate, temperature is controlled at 80 ℃; With the liquid concentrator cooling, crystallization is filtered then, and Tc is controlled at 10 ℃; The crystal of separating out with organic solvent washing 3 times, through centrifugal, is obtained glycyl-tyrosine bullion, and yield is about 75%.
Embodiment three
Get L tyrosinase 15 00g, toluene 1000g, water 500g and be positioned in the vial and stir, external ice-water bath, temperature is controlled at 2 ℃; Dropping sodium solution drips process temperature and is controlled at 3 ℃, after dropwising, and stirring reaction 40 minutes; Drip chloroacetyl chloride 500g, while dropping sodium solution, temperature is controlled at 0 ℃, and solution PH is controlled at 12; After dripping end, stirred 60 minutes, left standstill then 3 hours; After leaving standstill end, take off a layer water and pour in the triangular flask, slowly dripping hydrochloric acid is controlled solution PH=3.5; Treat that crystal separates out, leave standstill growing the grain after 2 hours, through centrifugal, obtain chloracetyl-tyrosine solid, the chloracetyl-tyrosine solid 800g that gets gained puts into the bulb bottle, adds bicarbonate of ammonia 450g, water, stirring and dissolving; Heat temperature raising, normal pressure ammonolysis reaction 8 hours, temperature is controlled at 45 ℃; After last step ammonolysis reaction finishes, continue heating and concentrate, temperature is controlled at 75 ℃; With the liquid concentrator cooling, crystallization is filtered then, and Tc is controlled at 5 ℃; The crystal of separating out with organic solvent washing 3 times, through centrifugal, is obtained glycyl-tyrosine bullion, and yield is about 80%.
Embodiment four
Get glycyl-tyrosine bullion, add water, use filtering with microporous membrane 50 ℃ of following stirring and dissolving; Under 30 ℃, in filtrating, slowly drip methyl alcohol, stirred 2 hours; Continue to drip methyl alcohol, complete hand to be crystallized, suction filtration; 40 ℃ of decompressions of filter cake (0.09Mpa) dry 5-10 hour, obtain glycyl-tyrosine crystal, yield is about 95%.
Glycyl-tyrosine bullion the yield that adopts above-mentioned process method preparation is at 75-85%, and the glycyl that obtains-tyrosine crystal purity is higher, is beneficial to the further purification of glycyl-tyrosine.

Claims (2)

1. the preparation method of a glycyl-tyrosine is characterized in that: may further comprise the steps:
1), get L-tyrosine, toluene, water and be positioned in the three-necked bottle and stir, external ice-water bath, temperature is controlled at 0~5 ℃; Dropping sodium solution drips process temperature and is controlled at 0~5 ℃, after dropwising, and stirring reaction 30~40 minutes;
2) after, upward the step reaction finishes, drip chloroacetyl chloride, while dropping sodium solution, temperature is controlled at-5 ℃~5 ℃, and solution PH is controlled at 11~13;
3) after, upward the step dropping finishes, stirred 30~60 minutes, left standstill then 1~2 hour;
4), go up after the step leaves standstill end, liquid is divided into two phases up and down, lower floor is a water, separates two phases up and down, water is poured in the triangular flask into slow dripping hydrochloric acid, control solution PH=2.5~3.5; Treat that crystal separates out, leave standstill growing the grain after 1~3 hour,, obtain chloracetyl-tyrosine solid through centrifugal, subsequent use;
5), will go up subsequent use chloracetyl-tyrosine solid of step puts into bottle, adding bicarbonate of ammonia, water, stirring and dissolving; Heat temperature raising, normal pressure ammonolysis reaction 6~8 hours, temperature is controlled at 40~50 ℃;
6), on go on foot ammonolysis reaction and finish after, continue heating and concentrate, temperature is controlled at 70~80 ℃;
7), go up EOS after, with the liquid concentrator cooling, crystallization is filtered, Tc is controlled at-5 ℃~10 ℃; The crystal of separating out with organic solvent washing 1~3 time, through centrifugal, is obtained glycyl-tyrosine.
2. the preparation method of glycyl-tyrosine according to claim 1 is characterized in that: through above-mentioned steps 7) glycyl-tyrosine of gained, also through refinement treatment, comprise dissolving, filtration, crystallization, suction filtration, drying step.
CN2012101518381A 2012-05-16 2012-05-16 Preparation method of glycyl-tyrosine Pending CN102718833A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102976967A (en) * 2012-11-13 2013-03-20 湖北一半天制药有限公司 Synthesis and study of glycyl-L-tyrosine intermidate
CN112552373A (en) * 2020-12-08 2021-03-26 河北一品制药股份有限公司 Industrial preparation method of glycyl-L-tyrosine
CN113384523A (en) * 2021-06-29 2021-09-14 四川科伦药业股份有限公司 Production and preparation method of compound amino acid (15) dipeptide (2) injection
CN113880911A (en) * 2021-09-15 2022-01-04 湖北泓肽生物科技有限公司 Synthesis method of glycyl-L-tyrosine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6197998B1 (en) * 1998-04-14 2001-03-06 Kyowa Hakko Kogyo Co., Ltd. Process for producing N-glycyltyrosine and its crystal structure
CN101502639A (en) * 2009-03-25 2009-08-12 大连紫萌科技有限公司 Glycyl-L-tyrosine pharmaceutical formulations and preparation method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6197998B1 (en) * 1998-04-14 2001-03-06 Kyowa Hakko Kogyo Co., Ltd. Process for producing N-glycyltyrosine and its crystal structure
CN101502639A (en) * 2009-03-25 2009-08-12 大连紫萌科技有限公司 Glycyl-L-tyrosine pharmaceutical formulations and preparation method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102976967A (en) * 2012-11-13 2013-03-20 湖北一半天制药有限公司 Synthesis and study of glycyl-L-tyrosine intermidate
CN112552373A (en) * 2020-12-08 2021-03-26 河北一品制药股份有限公司 Industrial preparation method of glycyl-L-tyrosine
CN113384523A (en) * 2021-06-29 2021-09-14 四川科伦药业股份有限公司 Production and preparation method of compound amino acid (15) dipeptide (2) injection
CN113384523B (en) * 2021-06-29 2022-06-03 四川科伦药业股份有限公司 Production and preparation method of compound amino acid (15) dipeptide (2) injection
CN113880911A (en) * 2021-09-15 2022-01-04 湖北泓肽生物科技有限公司 Synthesis method of glycyl-L-tyrosine
CN113880911B (en) * 2021-09-15 2023-11-14 湖北泓肽生物科技有限公司 A kind of synthetic method of glycyl-L-tyrosine

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Application publication date: 20121010