CN111170849A - Synthesis method of 3-amino-1-adamantanol - Google Patents

Synthesis method of 3-amino-1-adamantanol Download PDF

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Publication number
CN111170849A
CN111170849A CN202010028740.1A CN202010028740A CN111170849A CN 111170849 A CN111170849 A CN 111170849A CN 202010028740 A CN202010028740 A CN 202010028740A CN 111170849 A CN111170849 A CN 111170849A
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adamantanol
amino
adamantane
bromo
tert
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刘万里
李彬
许晓勇
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Tianjin Minxiang Pharmaceutical Co ltd
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Tianjin Minxiang Pharmaceutical Co ltd
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/347Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
    • C07C51/363Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups by introduction of halogen; by substitution of halogen atoms by other halogen atoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C213/00Preparation of compounds containing amino and hydroxy, amino and etherified hydroxy or amino and esterified hydroxy groups bound to the same carbon skeleton
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C269/00Preparation of derivatives of carbamic acid, i.e. compounds containing any of the groups, the nitrogen atom not being part of nitro or nitroso groups
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2603/00Systems containing at least three condensed rings
    • C07C2603/56Ring systems containing bridged rings
    • C07C2603/58Ring systems containing bridged rings containing three rings
    • C07C2603/70Ring systems containing bridged rings containing three rings containing only six-membered rings
    • C07C2603/74Adamantanes

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The invention discloses a synthesis method of 3-amino-1-adamantanol, which takes adamantane formic acid as a substrate and comprises the following steps: (1) slowly adding adamantane formic acid into the liquid bromine, and synthesizing the 3-bromine-1-adamantane formic acid under the action of an anhydrous aluminum trichloride catalyst; (2) reacting the synthesized 3-bromo-1-adamantanecarboxylic acid with triethylamine, diphenyl phosphorazide and tert-butyl alcohol at 80-110 ℃ for 12-16 hours in an organic solvent to synthesize 3-bromo-1-tert-butoxycarbonylamamidated adamantane; (3) carrying out reflux reaction on 3-bromo-1-tert-butoxycarbonylamantadine in a hydrobromic acid solution with the excessive molar concentration of 10% for 24-48 hours, (4) adding the synthesized bromate type 3-amino-1-adamantanol in a sodium hydroxide solution with the same molar concentration, heating to 30 ℃ while stirring, cooling to separate out a solid, carrying out suction filtration, and carrying out vacuum drying to obtain the 3-amino-1-adamantanol. The method has the characteristics of simple steps, easy operation, environmental friendliness, low cost, high yield and suitability for industrial production.

Description

Synthesis method of 3-amino-1-adamantanol
Technical Field
The invention relates to the field of adamantanol preparation, and in particular relates to a synthesis method of 3-amino-1-adamantanol.
Background
Adamantane is a cyclic tetrahedral hydrocarbon with highly symmetrical molecular structure, similar to a lattice unit of diamond, and hydrocarbon molecules close to spherical shape, and has unique physical and chemical properties. The adamantane and the derivatives thereof have wide application, are widely applied to various fields such as biomedicine, functional polymer materials, lubricating oil, catalysts, surfactants, pesticides and the like, and are called as a new generation of fine chemical raw materials. Its special structure makes it possess excellent liposolubility and low toxicity, and possesses unique pharmacological action, and the adamantane and its derivative can be used in medicine for preparing various specific medicines. Such as adamantane derivatives, are useful for the synthesis of specific drugs. 3-amino-1-adamantanol is an important 1, 3-disubstituted diamondoid drug intermediate, such as LAF237(US20080167479A1) used for synthesizing oral anti-type 2 diabetes drugs.
The following methods are disclosed in the literature for the synthesis of 3-amino-1-adamantanol: the method comprises the following steps: deamination hydrolysis of 1, 3-diamantane under specific conditions gives 3-amino-1-adamantanol (i.k. moiseev, v.p. konovalova, s.s. novikov, khim.1973, 10, 2378-2349). The method firstly prepares the 1, 3-diamantane, and has the disadvantages of multiple reaction steps, low selectivity and low yield. The method 2 comprises the following steps: selective oxidation of amantadine with acetone trifluoroperoxide gave 3-amino-1-adamantanol (G.Asenslo, M.E.Gonzalez-Nunez, J.Am.chem.Soc.1993, 115, 7250-7253). The raw materials adopted by the method are difficult to obtain and unstable, and the reaction conditions are difficult to industrialize. The method 3 comprises the following steps: 3-bromo-1-adamantanecarboxylic acid was subjected to azide rearrangement with sodium azide and then hydrolyzed to give 3-amino-1-adamantanol (A. Donetti, E.Bellor, Synthetic communications.1943, 3, 165-166). The method has low reaction safety coefficient by using sodium azide and is not easy to industrialize.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the synthesis method of the 3-amino-1-adamantanol, which has the characteristics of simple steps, easy operation, environmental friendliness, low cost, high yield and suitability for industrial production, and the dichloromethane, chloroform and other solutions after washing and using the product can be recycled, so that the production cost is reduced.
In order to achieve the aim of the invention, the invention adopts the specific scheme that:
a synthetic method of 3-amino-1-adamantanol takes adamantane formic acid as a substrate, and the formula is as follows:
Figure BDA0002363448990000011
the preparation method comprises the following steps:
(1) slowly adding adamantane formic acid into the liquid bromine, stirring and refluxing for reaction for 48-60 hours at the temperature of 20-10 ℃ under the action of an anhydrous aluminum trichloride catalyst, and reacting for 5 hours at the temperature of 20-30 ℃ to synthesize 3-bromine-1-adamantane formic acid;
(2) reacting the synthesized 3-bromo-1-adamantanecarboxylic acid with triethylamine, diphenyl phosphorazide and tert-butyl alcohol at 80-110 ℃ for 12-16 hours in an organic solvent to synthesize 3-bromo-1-tert-butoxycarbonylamamidated adamantane;
(3) carrying out reflux reaction on 3-bromo-1-tert-butoxycarbonylamantadine in a hydrobromic acid solution with the excessive molar concentration of 10% for 24-48 hours to synthesize bromate type 3-amino-1-adamantanol;
(4) and (2) adding the synthesized bromate type 3-amino-1-adamantanol into an equimolar sodium hydroxide solution, heating to 30 ℃ while stirring, cooling to separate out a solid, performing suction filtration, and performing vacuum drying to obtain the 3-amino-1-adamantanol.
The invention has the beneficial effects that:
the method has the characteristics of simple and easy operation, environmental friendliness, low cost, high yield and suitability for industrial production, and the dichloromethane, chloroform and other solutions after washing and using the product can be recycled, so that the production cost is reduced.
Detailed Description
The present invention is further described below by way of specific examples, but the present invention is not limited to only the following examples. Variations, combinations, or substitutions of the invention, which are within the scope of the invention or the spirit, scope of the invention, will be apparent to those of skill in the art and are within the scope of the invention.
A synthetic method of 3-amino-1-adamantanol takes adamantane formic acid as a substrate, and the formula is as follows:
Figure BDA0002363448990000021
the preparation method comprises the following steps:
(1) slowly adding adamantane formic acid into the liquid bromine, stirring and refluxing for reaction for 48-60 hours at the temperature of 20-10 ℃ under the action of an anhydrous aluminum trichloride catalyst, and reacting for 5 hours at the temperature of 20-30 ℃ to synthesize 3-bromine-1-adamantane formic acid;
(2) reacting the synthesized 3-bromo-1-adamantanecarboxylic acid with triethylamine, diphenyl phosphorazide and tert-butyl alcohol at 80-110 ℃ for 12-16 hours in an organic solvent to synthesize 3-bromo-1-tert-butoxycarbonylamamidated adamantane;
(3) carrying out reflux reaction on 3-bromo-1-tert-butoxycarbonylamantadine in a hydrobromic acid solution with the excessive molar concentration of 10% for 24-48 hours to synthesize bromate type 3-amino-1-adamantanol;
(4) and (2) adding the synthesized bromate type 3-amino-1-adamantanol into an equimolar sodium hydroxide solution, heating to 30 ℃ while stirring, cooling to separate out a solid, performing suction filtration, and performing vacuum drying to obtain the 3-amino-1-adamantanol.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (1)

1. A method for synthesizing 3-amino-1-adamantanol is characterized in that adamantane formic acid is used as a substrate, and the formula is as follows:
Figure FDA0002363448980000011
the preparation method comprises the following steps:
(1) slowly adding adamantane formic acid into the liquid bromine, stirring and refluxing for reaction for 48-60 hours at the temperature of 20-10 ℃ under the action of an anhydrous aluminum trichloride catalyst, and reacting for 5 hours at the temperature of 20-30 ℃ to synthesize 3-bromine-1-adamantane formic acid;
(2) reacting the synthesized 3-bromo-1-adamantanecarboxylic acid with triethylamine, diphenyl phosphorazide and tert-butyl alcohol at 80-110 ℃ for 12-16 hours in an organic solvent to synthesize 3-bromo-1-tert-butoxycarbonylamamidated adamantane;
(3) carrying out reflux reaction on 3-bromo-1-tert-butoxycarbonylamantadine in a hydrobromic acid solution with the excessive molar concentration of 10% for 24-48 hours to synthesize bromate type 3-amino-1-adamantanol;
(4) and (2) adding the synthesized bromate type 3-amino-1-adamantanol into an equimolar sodium hydroxide solution, heating to 30 ℃ while stirring, cooling to separate out a solid, performing suction filtration, and performing vacuum drying to obtain the 3-amino-1-adamantanol.
CN202010028740.1A 2020-01-11 2020-01-11 Synthesis method of 3-amino-1-adamantanol Pending CN111170849A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116924918A (en) * 2023-07-20 2023-10-24 浙江荣耀生物科技股份有限公司 Preparation method of 3-amino-1-adamantanol

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101747212A (en) * 2009-12-22 2010-06-23 广东工业大学 Method for synthesizing 3-amino-1-adamantanol

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101747212A (en) * 2009-12-22 2010-06-23 广东工业大学 Method for synthesizing 3-amino-1-adamantanol

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
A. DONETTI等: "Synthesis of 1-amino-3-hydroxyadamantane" *
谢炳玉等: "含氨基的金刚烷桥头二取代化合物合成研究" *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116924918A (en) * 2023-07-20 2023-10-24 浙江荣耀生物科技股份有限公司 Preparation method of 3-amino-1-adamantanol
CN116924918B (en) * 2023-07-20 2024-02-09 浙江荣耀生物科技股份有限公司 Preparation method of 3-amino-1-adamantanol

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Application publication date: 20200519