CN114752634A - Preparation method of (R) 3-butyne-2-ol derivative - Google Patents

Preparation method of (R) 3-butyne-2-ol derivative Download PDF

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CN114752634A
CN114752634A CN202210474173.1A CN202210474173A CN114752634A CN 114752634 A CN114752634 A CN 114752634A CN 202210474173 A CN202210474173 A CN 202210474173A CN 114752634 A CN114752634 A CN 114752634A
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butyn
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phosphate
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胡锦千
张启军
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Zhangbang Chengdu Biomedical Technology Co ltd
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    • C12P7/00Preparation of oxygen-containing organic compounds
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Abstract

The invention discloses a method for preparing a compound (R) 3-butyn-2-ol derivative shown in a formula (II) by a reduction reaction of a compound 3-butyn-2-one derivative shown in the formula (I), wherein the reduction reaction is an enzyme catalytic reduction reaction, and the enzyme is selected from carbonyl reductase. The method can effectively prepare the target compound, has the advantages of simple operation, environmental protection, high yield, high selectivity, low cost and the like, and is suitable for industrial production.

Description

Preparation method of (R) 3-butyne-2-ol derivative
Technical Field
The invention relates to a preparation method of (R) 3-butyne-2-alcohol derivatives.
Background
The chiral propargyl alcohol derivative is an important intermediate for synthesizing natural products such as alkaloid, steroid, sesquiterpene and the like,
the specific structural formula is as follows:
Figure BDA0003624555470000011
the synthesis of this intermediate has been reported in the current patent (CN102408313A), which discloses the following route:
racemic 3-butyne-2-alcohol is taken as a raw material, firstly reacts with phthalic anhydride, and then R-phenylethylamine is subjected to salt formation and resolution to finally obtain (R) 3-butyne-2-alcohol, but in the route, after the compound is subjected to salt formation, the compound needs to be crystallized and purified for multiple times to obtain a final product. There are also relevant literature reports (R) methods for the preparation of 3-butyn-2-ol derivatives (Thomas Schubert; Werner Hummel; Maria-Regina Kula; Michael Muller. organic Synthesis of Both elastomers of vacuum polymeric Alcohols by Use of Two oxygen products EurJOC.2001(22), 4181-4187), but these processes have one or more of the following problems: 1) a great amount of high-concentration acid-containing wastewater and waste liquid can be generated in the splitting process; 2) the yield is low, the production period is long, and the production cost is increased; 3) the reaction system is too large, the productivity is low, and the method is not suitable for industrial scale-up production.
Disclosure of Invention
In view of the above problems, the present invention provides a process for producing a 3-butyn-2-one derivative represented by the formula (I) below as an (R) 3-butyn-2-ol derivative represented by the formula (II) below:
Figure BDA0003624555470000012
said R is1Selected from methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl, and the like;
the reaction is an enzyme catalyzed reaction, the enzyme being selected from carbonyl reductases.
Further, the temperature of the enzyme-catalyzed reaction is 20-60 ℃, preferably 37-45 ℃;
the time of the enzyme catalysis reaction is 12-96 hours, preferably 18-48 hours.
Further, the enzyme-catalyzed reaction is carried out in an aqueous solvent system.
Further, the aqueous solvent is selected from mixed solvents consisting of phosphate and organic solvents.
Further, the organic solvent is selected from one or more of methyl tert-butyl ether, isopropyl ether, ethyl acetate, tetrahydrofuran, dichloromethane, toluene, o-xylene, m-xylene, p-xylene and acetone; preferably, the organic solvent is selected from one or more of methyl tert-butyl ether, isopropyl ether, acetone and toluene; most preferably, the organic solvent is selected from methyl tert-butyl ether.
Further, the mass ratio of the compound shown in the formula (I) to the enzyme is 100: 1-1: 1, preferably 30: 1-10: 1;
Furthermore, the mass ratio of the compound shown in the formula (I) to the coenzyme is 10000: 1-10: 1, preferably 1000: 1-100: 1.
Further, the phosphate solution is a phosphate buffer solution with a pH value of 7.2, and the volume ratio of the phosphate to the organic solvent in the mixed solvent is 100: 1-1: 1, preferably 10: 1-4: 1.
Further, the mass-to-volume ratio of the compound of formula (I) to the solvent is 1: 5-1: 20, preferably 1: 10-1: 15.
Test results prove that the method can effectively prepare the target compound and has the advantages of simple operation, environmental protection, high yield, high selectivity, low cost and the like.
Obviously, many modifications, substitutions, and variations are possible in light of the above teachings of the invention, without departing from the basic technical spirit of the invention, as defined by the following claims.
The present invention will be described in further detail with reference to the following examples. This should not be understood as limiting the scope of the above-described subject matter of the present invention to the following examples. All the technologies realized based on the above contents of the present invention belong to the scope of the present invention.
Detailed Description
In the examples, the enzyme reagent is derived from Nippon wild enzyme preparation Co., Ltd, and the coenzyme is derived from Bangtai bioengineering (Shenzhen) Co., Ltd.
Example 1
(R) preparation of 3-butyn-2-ol:
Figure BDA0003624555470000021
in phosphate buffer (250mL), 3-butyn-2-one (50g), carbonyl reductase K1(2.5g), coenzyme (NADPH,0.05g), methyl tert-butyl ether (62.5mL), isopropanol (10mL), the reaction was stirred at 37 ℃, after 26 hours, the reaction was terminated, methyl tert-butyl ether (250mL) was added and extracted 2 times, the organic phases were combined, dried and spun to give 45g of an oil (compound of formula (ii)), ee 99.2%, and yield 90%.
Example 2
To a phosphate buffer (500mL) was added 3-butyn-2-one (50g), carbonyl reductase K2(2.5g), coenzyme (NADH, 0.5g), methyl tert-butyl ether (50mL), isopropanol (10mL), the reaction was stirred at 45 ℃ and terminated after 18 hours, methyl tert-butyl ether (250mL) was added and extracted 2 times, the organic phases were combined, dried and spun to give 42g of an oil (compound of formula (II)), ee 99.6%, and yield 84%.
Example 3
To a phosphate buffer (500mL) was added 3-butyn-2-one (50g), carbonyl reductase K2(1.6g), coenzyme (NADH, 0.05g), methyl tert-butyl ether (50mL), isopropanol (10mL), the reaction was stirred at 45 ℃ and stopped after 38 hours, methyl tert-butyl ether (250mL) was added and extracted 2 times, the organic phases were combined, dried and spun to give 44g of an oil (compound of formula (II)) with ee 99.6% and yield 88%.
Example 4
After stirring in phosphate buffer (750mL), 3-butyn-2-one (50g), carbonyl reductase K3(5g), coenzyme (0.02g), isopropyl ether (75mL), and isopropanol (10mL) at room temperature for 38 hours, the reaction was terminated, methyl tert-butyl ether (250mL) was added and extracted 2 times, the organic phases were combined, dried, and spun to give 41g of an oil (compound of formula (ii)), ee 98.5%, and yield 82%.
Example 5
To a phosphate buffer (500mL) was added 3-butyn-2-one (50g), carbonyl reductase K4(1.6g), coenzyme (NADPH, 0.1g), acetone (50mL), isopropanol (10mL), stirred at room temperature, quenched after 48 hours, extracted 2 times with methyl tert-butyl ether (250mL), and the organic phases were combined, dried and spun to give 43.5g of an oil (compound of formula (II)), ee 97.5%, and yield 87%.
Example 6
(R) preparation of 1-butyn-3-ol:
Figure BDA0003624555470000041
1-butyn-3-one (50g), carbonyl reductase K2(2.5g), coenzyme (NADH, 0.5g), methyl t-butyl ether (50mL), isopropyl alcohol (10mL) were added to phosphate buffer (500mL), the reaction was stirred at 45 ℃ and stopped after 24 hours, methyl t-butyl ether (250mL) was added and extracted 2 times, the organic phases were combined, dried and spun to obtain 45.3g of an oil (compound of formula (IIb)), ee 99.4%, yield 90.6%
In conclusion, the high-purity alkynol intermediate can be effectively prepared, has the advantages of simplicity in operation, environmental friendliness, high yield, high selectivity, low cost and the like, and can be applied to industrial production.

Claims (8)

1. A process for producing a 3-butyn-2-ol derivative of the compound (R) of the formula (II) from a 3-butyn-2-one derivative of the compound of the formula (I), characterized by comprising the steps of:
1) taking a compound shown in a formula (I) as a raw material, taking isopropanol as a hydrogen source in a water-containing solvent system, and carrying out enzyme catalytic reduction to obtain (R) 3-butyn-2-ol derivatives;
Figure FDA0003624555460000011
wherein, R is1Selected from methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl, and the like;
the enzyme is selected from carbonyl reductases;
the coenzyme is selected from reduced nicotinamide adenine dinucleotide phosphate (abbreviated as NADPH) or nicotinamide adenine dinucleotide (abbreviated as NADH).
2. The method of claim 1, wherein: the temperature of the enzyme catalytic reaction is 20-60 ℃;
the time of the enzyme catalysis reaction is 12-96 hours.
3. The method according to claim 1 or 2, characterized in that: the enzyme-catalyzed reaction is carried out in an aqueous solvent system.
4. The method of claim 3, wherein: the aqueous solvent is selected from a mixed solvent consisting of phosphate and an organic solvent.
5. The method according to claim 3, wherein the organic solvent is one or more selected from methyl tert-butyl ether, isopropyl ether, ethyl acetate, tetrahydrofuran, dichloromethane, toluene, o-xylene, m-xylene, p-xylene, and acetone.
6. The method of claim 1, wherein: the mass ratio of the compound shown in the formula (I) to the enzyme is 100: 1-1: 1; the mass ratio of the compound shown in the formula (I) to the coenzyme is 10000: 1-10: 1.
7. The method of claim 4, wherein: the phosphate solution is a phosphate buffer solution with the pH value of 7.2, and the volume ratio of phosphate to the organic solvent in the mixed solvent is 100: 1-1: 1.
8. The method according to any one of claims 3 or 4, wherein: the mass volume ratio of the compound shown in the formula (I) to the solvent is 1: 5-1: 20.
CN202210474173.1A 2022-04-29 2022-04-29 Preparation method of (R) 3-butyne-2-ol derivative Pending CN114752634A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2362070A1 (en) * 1999-02-16 2000-08-24 Masaru Mitsuda Substituted acetylpyridine derivatives and process for the preparation of intermediates for optically active .beta.3 agonist by the use of the same
WO2007042444A1 (en) * 2005-10-10 2007-04-19 Basf Se New esterases and their use for processes for kinetic resolution of butinolesters
CN102946898A (en) * 2010-06-19 2013-02-27 天野酶株式会社 Agent for reducing acetaldehyde in oral cavity

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2362070A1 (en) * 1999-02-16 2000-08-24 Masaru Mitsuda Substituted acetylpyridine derivatives and process for the preparation of intermediates for optically active .beta.3 agonist by the use of the same
WO2007042444A1 (en) * 2005-10-10 2007-04-19 Basf Se New esterases and their use for processes for kinetic resolution of butinolesters
CN101253262A (en) * 2005-10-10 2008-08-27 巴斯夫欧洲公司 New esterases and their use for processes for kinetic resolution of butinolesters
CN102946898A (en) * 2010-06-19 2013-02-27 天野酶株式会社 Agent for reducing acetaldehyde in oral cavity

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
胡锐;张承平;裴志胜;: "光动不对称加氢制备高光学纯度(S)-4-三甲基硅基-3-丁炔-2-醇的研究", 化学学报, no. 07, 15 July 2013 (2013-07-15), pages 1064 - 1070 *

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