阅读说明：本技术 一种1-癸炔-5醇的纯度分析法及手性分析法 (Purity analysis method and chiral analysis method of 1-decyne-5 alcohol ) 是由 陆茜 付杨杰 陈晶晶 于 2021-09-18 设计创作，主要内容包括：本发明提供了一种1-癸炔-5醇的纯度分析法及手性分析法,属于分析检测领域。本发明提供的1-癸炔-5醇的纯度分析法,因为采用了气相色谱法并且采用了合适的气相色谱条件,所以,本发明能够准确高效地检测出1-癸炔-5醇的纯度。本发明提供的1-癸炔-5醇的手性分析法,因为采用了气相色谱法并且将柱温的初始温度控制在60℃-80℃之间,载气柱流速控制在2mL/min-4mL/min之间,所以本发明能够有效地在谱图中分离1-癸炔-5醇的两种手性异构体,并且峰型良好,分离度较佳。(The invention provides a purity analysis method and a chiral analysis method of 1-decyne-5 alcohol, belonging to the field of analysis and detection. The purity analysis method of the 1-decyne-5 alcohol provided by the invention adopts the gas chromatography and adopts proper gas chromatography conditions, so that the purity of the 1-decyne-5 alcohol can be accurately and efficiently detected. According to the chiral analysis method of the 1-decyne-5 alcohol, the gas chromatography is adopted, the initial temperature of the column temperature is controlled to be 60-80 ℃, and the flow rate of the carrier gas column is controlled to be 2-4 mL/min, so that the two chiral isomers of the 1-decyne-5 alcohol can be effectively separated in a spectrogram, the peak type is good, and the separation degree is good.)

1. A method for analyzing the purity of 1-decyne-5 alcohol is characterized in that gas chromatography is adopted,

the conditions of the gas chromatography were:

temperature of the column: the initial temperature is 40-50 ℃, the temperature is maintained for 0min-2min, the temperature is increased to 150-180 ℃ at the speed of 10-20 ℃/min, the temperature is maintained for 3min-8min, the temperature is increased to 250-270 ℃ at the speed of 10-30 ℃/min, the temperature is maintained for 0min-10min,

detector temperature: the temperature of the mixture is 260-300 ℃,

sample inlet temperature: at the temperature of between 180 and 220 ℃,

carrier gas: the nitrogen gas is introduced into the reaction kettle,

column flow rate: 1mL/min-2mL/min,

the split ratio is as follows: (18-22):1,

hydrogen flow rate: 20mL/min-40mL/min,

air flow rate: 280mL/min-320mL/min,

tail gas blowing flow rate: 20mL/min-30 mL/min.

2. The method for detecting the purity of 1-decyne-5 alcohol according to claim 1, wherein the method comprises the following steps:

wherein the gas chromatography conditions further comprise:

the column was an Agilent DB-1701, 30 m.times.0.32 mm.times.1 μm.

3. The method for detecting the purity of 1-decyne-5 alcohol according to claim 1, wherein the method comprises the following steps:

wherein the gas chromatography conditions further comprise:

the diluent is any one or more of methanol, ethanol, dichloromethane, dimethyl sulfoxide, N-dimethylformamide or N-methylpyrrolidone.

4. The method for detecting the purity of 1-decyne-5 alcohol according to claim 1, wherein the method comprises the following steps:

wherein the gas chromatography conditions further comprise:

the sample concentration is 5mg/mL-20 mg/mL.

5. The method for detecting the purity of 1-decyne-5 alcohol according to claim 1, wherein the method comprises the following steps:

wherein the gas chromatography conditions further comprise:

the sample amount is 1-2 μ L.

6. A chiral analysis method of 1-decyne-5 alcohol is characterized in that gas chromatography is adopted,

the conditions of the gas chromatography were:

a chromatographic column: a chiral gas chromatographic column is arranged on the column,

temperature of the column: the initial temperature is 60-100 ℃, the temperature is maintained for 3-7 min, the temperature is increased to 100-120 ℃ at the speed of 1-5 ℃/min, the temperature is maintained for 3-8 min,

detector temperature: the temperature of the mixture is 260-300 ℃,

sample inlet temperature: at the temperature of between 180 and 220 ℃,

carrier gas: the nitrogen gas is introduced into the reaction kettle,

column flow rate: 2mL/min-5mL/min,

the split ratio is as follows: (20-40):1,

hydrogen flow rate: 20mL/min-40mL/min,

air flow rate: 280mL/min-320mL/min,

tail gas blowing flow rate: 20mL/min-30 mL/min.

7. The chiral analysis method of 1-decyne-5 alcohol according to claim 6, wherein,

wherein the chiral gas chromatographic column is Agilent CP-Chirasil Dex CB with the thickness of 25m multiplied by 0.32mm multiplied by 0.25 mu m.

8. The chiral analysis method of 1-decyne-5 alcohol according to claim 6, wherein,

wherein the gas chromatography conditions further comprise:

the diluent is any one or more of methanol, ethanol, dichloromethane, dimethyl sulfoxide, N-dimethylformamide or N-methylpyrrolidone.

9. The chiral analysis method of 1-decyne-5 alcohol according to claim 6, wherein,

wherein the initial temperature of the chromatographic column is 60 ℃ to 80 ℃.

10. The chiral analysis method of 1-decyne-5 alcohol according to claim 6, wherein,

wherein the column flow rate is 4 mL/min.

Technical Field

The invention relates to the field of analysis and detection, and particularly relates to a purity analysis method and a chiral analysis method of 1-decyne-5 alcohol.

Background

Treprostinil was developed by united states pharmaceutical companies as a prostaglandin drug for the treatment of pulmonary hypertension. The treprostinil injection is one of the most effective injection preparations for treating pulmonary hypertension in the prior art, has good stability and long half-life, is mainly administrated in a subcutaneous continuous infusion mode and can also be administrated by continuous intravenous injection, and foreign clinical test data show that the medicine has definite clinical curative effect and is superior to other prostacyclin analogue medicines on the market in safety.

According to the Chinese patent with patent publication No. CN104892555A, the intermediate of treprostinil can be synthesized by the following reaction path:

in the above formula, R₁And R₂Each independently a hydroxyl protecting agent.

As can be seen from the above formula, 1-decyne-5 alcohol (i.e., compound I) is an important intermediate for the synthesis of treprostinil and has certain requirements on its chirality.

However, this patent document and other prior arts do not disclose a method for detecting the purity and a method for detecting the chirality of alkynol compounds such as 1-decyne-5 alcohol.

Disclosure of Invention

The present invention has been made to solve the above problems, and an object of the present invention is to provide a method for analyzing the purity of 1-decyne-5 alcohol and a chiral analysis method, which can be performed quickly and accurately.

The invention provides a purity analysis method of 1-decyne-5 alcohol, which is characterized in that a gas chromatography is adopted, and the conditions of the gas chromatography are as follows: temperature of the column: the initial temperature is 40-50 ℃, the temperature is maintained for 0min-2min, the temperature is increased to 150-180 ℃ at the speed of 10-20 ℃/min, the temperature is maintained for 3-8 min, the temperature is increased to 250-270 ℃ at the speed of 10-30 ℃/min, the temperature is maintained for 0-10 min, and the temperature of a detector is as follows: 260-300 ℃, injection port temperature: 180 ℃ -220 ℃, carrier gas: nitrogen, column flow rate: 1mL/min-2mL/min, split ratio: (18-22) 1, hydrogen flow rate: 20mL/min-40mL/min, air flow rate: 280mL/min-320mL/min, tail gas blowing flow rate: 20mL/min-30 mL/min.

The method for analyzing the purity of 1-decyne-5 alcohol provided by the invention can also have the following characteristics: wherein, the gas chromatography conditions further comprise: the column was an Agilent DB-1701, 30 m.times.0.32 mm.times.1 μm.

The method for analyzing the purity of 1-decyne-5 alcohol provided by the invention can also have the following characteristics: wherein, the gas chromatography conditions further comprise: the diluent is any one or more of methanol, ethanol, dichloromethane, dimethyl sulfoxide, N-dimethylformamide or N-methylpyrrolidone.

The method for analyzing the purity of 1-decyne-5 alcohol provided by the invention can also have the following characteristics: wherein, the gas chromatography conditions further comprise: the sample concentration is 5mg/mL-20 mg/mL.

The method for analyzing the purity of 1-decyne-5 alcohol provided by the invention can also have the following characteristics: wherein, the gas chromatography conditions further comprise: the sample amount is 1-2 μ L.

The invention provides a chiral analysis method of 1-decyne-5 alcohol, which is characterized in that gas chromatography is adopted, and the conditions of the gas chromatography are as follows: a chromatographic column: chiral gas chromatography column, column temperature: the initial temperature is 60-100 ℃, the temperature is maintained for 3-7 min, the temperature is increased to 100-120 ℃ at the speed of 1-5 ℃/min, the temperature is maintained for 3-8 min, and the temperature of a detector is as follows: 260-300 ℃, injection port temperature: 180 ℃ -220 ℃, carrier gas: nitrogen, column flow rate: 2mL/min-5mL/min, split ratio: (20-40) 1, hydrogen flow rate: 20mL/min-40mL/min, air flow rate: 280mL/min-320mL/min, tail gas blowing flow rate: 20mL/min-30 mL/min.

The chiral analysis method of the 1-decyne-5 alcohol provided by the invention can also have the following characteristics: wherein the chiral gas chromatographic column is Agilent CP-Chirasil Dex CB with the thickness of 25m multiplied by 0.32mm multiplied by 0.25 mu m.

The chiral analysis method of the 1-decyne-5 alcohol provided by the invention can also have the following characteristics: wherein, the gas chromatography conditions further comprise: the diluent is any one or more of methanol, ethanol, dichloromethane, dimethyl sulfoxide, N-dimethylformamide or N-methylpyrrolidone.

The chiral analysis method of the 1-decyne-5 alcohol provided by the invention can also have the following characteristics: wherein the initial temperature of the chromatographic column is 60-80 ℃.

The chiral analysis method of the 1-decyne-5 alcohol provided by the invention can also have the following characteristics: wherein the column flow rate was 4 mL/min.

Action and Effect of the invention

According to the method for analyzing the purity of 1-decyne-5 alcohol, which is provided by the invention, the purity of 1-decyne-5 alcohol can be accurately and efficiently detected because gas chromatography is adopted and appropriate gas chromatography conditions are adopted.

According to the chiral analysis method of the 1-decyne-5 alcohol, which is related by the invention, because the gas chromatography is adopted, the initial temperature of the column temperature is controlled between 60 ℃ and 80 ℃, and the flow rate of the carrier gas column is controlled between 2mL/min and 4mL/min, the invention can effectively separate two chiral isomers of the 1-decyne-5 alcohol in a spectrogram, and has good peak shape and better separation degree.

Drawings

FIG. 1 is a gas chromatogram for the purity analysis of 1-decyn-5 alcohol in example 1 of the present invention;

FIG. 2 is a gas chromatogram of chiral analysis of 1-decyn-5 alcohol in example 2 of the present invention;

FIG. 3 is a gas chromatogram of chiral analysis of 1-decyn-5 alcohol in example 3 of the present invention;

FIG. 4 is a gas chromatogram of chiral analysis of 1-decyn-5 alcohol in example 4 of the present invention;

FIG. 5 is a gas chromatogram of chiral analysis of 1-decyne-5 alcohol in example 5 of the present invention.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is specifically described below by combining the embodiment and the attached drawings.

In the following examples, (S) -1-decyn-5 alcohol, (R) -1-decyn-5 alcohol and 1-decyn-5 alcohol racemic samples were prepared by itself and purified by column chromatography, all according to the method described in example eight of Chinese patent publication No. CN 104892555A.

In the following examples, 0.5% of the spiked samples were formulated as follows:

precisely weighing 50mg of (S) -1-decyne-5 alcohol sample in a 10mL volumetric flask, dissolving with 5mL of diluent dichloromethane, precisely transferring 0.05mL of (R) -1-decyne-5 alcohol solution (5mg/mL) into the volumetric flask, diluting to a constant volume with the diluent, and uniformly mixing.

In the following examples, the gas instruments used are gas chromatographs of the Agilent model 8860 (Agilent8860 with FID detector) equipped with a flame ionization detector, manufactured by Agilent.

In the following examples, all the columns used were commercial columns manufactured by Agilent.

< example 1>

This example provides a method for analyzing the purity of 1-decyne-5 alcohol, wherein the method is a gas chromatography, the sample detected in this example is a racemic sample of 1-decyne-5 alcohol, and the conditions of the gas chromatography are shown in table 1:

table 1 example 1 table of gas chromatography conditions

As shown in FIG. 1, the method provided by this example can effectively separate and detect 1-decyne-5 alcohol and confirm its content.

< example 2>

This example provides a chiral analysis method of 1-decyne-5 alcohol, the analysis method is a gas chromatography, the sample detected in this example is a spiked 0.5% sample, and the conditions of the gas chromatography are shown in table 2:

table 2 example 2 table of gas chromatography conditions

As shown in fig. 2, the gas chromatography provided in this example can effectively separate (S) -1-decyne-5 alcohol and (R) -1-decyne-5 alcohol, the peak pattern is good, the separation degree can reach 1.71, and the recovery rate of spiking is 112.2%.

< example 3>

This example provides a chiral analysis method for 1-decyne-5 alcohol, which is a gas chromatography method, wherein the sample detected in this example is a spiked 0.5% sample, and the conditions of the gas chromatography are substantially the same as those of example 2 except that the initial temperature of the column temperature is 60 ℃.

As shown in fig. 3, the gas chromatography provided in this example can effectively separate (S) -1-decyne-5 alcohol and (R) -1-decyne-5 alcohol, the separation degree can reach 1.90, and the recovery rate of the spiked standard is 92.4%, but the detection time is too long compared with the method provided in example 2.

< example 4>

This example provides a chiral analysis method of 1-decyne-5 alcohol, which is a gas chromatography, wherein the sample detected in this example is a spiked 0.5% sample, and the conditions of the gas chromatography are substantially the same as those of example 2 except that the initial temperature of the column temperature is 100 ℃.

As shown in fig. 4, the gas chromatography provided in this example was able to separate (S) -1-decyn-5 alcohol and (R) -1-decyn-5 alcohol to some extent, but the degree of separation was only 1.44, with a recovery of 62.0% normalized.

< example 5>

This example provides a chiral analysis method for 1-decyne-5 alcohol, which is a gas chromatography, wherein the sample detected in this example is a spiked 0.5% sample, and the conditions of the gas chromatography are substantially the same as those of the gas chromatography in example 2, except that the column flow rate is 5 mL/min.

As shown in fig. 5, the gas chromatography provided in this example has a poor separation of only 1.27 and a recovery of 85.4% on the basis of the spiked standard.

Effects and effects of the embodiments

According to the method for analyzing the purity of 1-decyne-5 alcohol according to the above embodiment, since gas chromatography is used and appropriate gas chromatography conditions are used, the above embodiment can accurately and efficiently detect the purity of 1-decyne-5 alcohol.

According to the chiral analysis method of 1-decyne-5 alcohol according to the above embodiment, since gas chromatography is used and the initial temperature of the column temperature is controlled to be 60 ℃ to 80 ℃, and the flow rate of the carrier gas column is controlled to be 4mL/min, the above embodiment can effectively and qualitatively separate two chiral isomers of 1-decyne-5 alcohol in the spectrum even at low concentration, and has good peak pattern, good separation degree and standard recovery rate of 62.0% to 112.2.

The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.