Coumarin compound and synthesis method thereof

A technology for coumarins and synthesis methods, which can be applied in the directions of organic chemistry, drug combination, antitumor drugs, etc., can solve the problems of high cost of synthesis process, harmful environment, low yield and the like

Active Publication Date: 2022-05-13
HARBIN MEDICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the main problems of coumarin derivatives are high synthesis process cost, harmful to the environment, complicated operation, and low yield.

Method used

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  • Coumarin compound and synthesis method thereof
  • Coumarin compound and synthesis method thereof
  • Coumarin compound and synthesis method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] The synthetic method of the 7-hydroxycoumarin derivative of the present embodiment is as follows:

[0046] Synthesis of step 1, 7-hydroxycoumarin derivative intermediate (a1, a2, a3, a4)

[0047] Get 3.08mmol of 7-hydroxycoumarin and respectively place reaction flask with 2-bromoethanol, 3-bromo-1-n-propanol, 6-bromo-1-n-hexanol and 10-bromo-1-n-decanol, respectively Add 15.4mmol of potassium carbonate, 3.08mmol of sodium iodide, 1.54mmol of tetrabutylammonium fluoride in sequence, and then add 30mL of acetone respectively, and heat for 6 hours at a reaction temperature of 56°C respectively. TLC monitors reaction respectively, and the developing agent used in monitoring is V (petroleum ether): V (ethyl acetate)=10:5, (by R fThe value is judged between 1.2-1.5, and the follow-up operation is carried out) After the reaction is completed, filter respectively, and distill under reduced pressure to obtain yellow oil (38-45° C.). Separation and purification through silica g...

Embodiment 2

[0096] The synthetic method of the 4-hydroxycoumarin derivative of the present embodiment is:

[0097] Synthesis of step 1, 4-hydroxycoumarin derivative intermediate (b1, b2, b3, b4)

[0098] Get 4-hydroxycoumarin 3.08mmol and place reaction flask respectively with 2-bromoethanol, 3-bromo-1-n-propanol, 6-bromo-1-n-hexanol and 10-bromo-1-n-decanol, respectively Add 15.4mmol of potassium carbonate, 3.08mmol of sodium iodide, 1.54mmol of tetrabutylammonium fluoride in sequence, and then add 30mL of acetone respectively, and heat for 6 hours at a reaction temperature of 56°C respectively. TLC follow-up monitoring respectively, developer is V (petroleum ether): V (ethyl acetate)=10:5 (by R f The value is between 1.2-1.5 to determine the follow-up operation), after the reaction is completed, filter respectively, and distill under reduced pressure to obtain viscous yellow oil (38-45°C). Separation and purification through silica gel column by dry method respectively, eluent V (petr...

Embodiment 3

[0149] The synthetic method of the 4-methyl-7-hydroxycoumarin derivative of the present embodiment is:

[0150] Step 1, the synthesis of 4-methyl-7-hydroxycoumarin derivative intermediate (c1, c2, c3, c4)

[0151] Get 2.84mmol of 4-methyl-7-hydroxycoumarin with 2-bromoethanol, 3-bromo-1-n-propanol, 6-bromo-1-n-hexanol, 10-bromo-1-n-decanol In the reaction bottle, 14.20 mmol potassium carbonate, 2.84 mmol sodium iodide, 1.42 mmol tetrabutylammonium fluoride were added in turn, and then 30 ml acetone were added respectively, and the reaction temperature was 56° C. respectively, and heated for 6 hours. TLC monitors reaction respectively, developing agent is V (petroleum ether): V (ethyl acetate)=10:5 (by R f The value is between 1.2-1.5 to determine the follow-up operation), after the reaction is completed, filter respectively, and distill under reduced pressure to obtain viscous yellow oil (38-45°C). Separation and purification through silica gel column by dry method, eluent V...

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Abstract

The invention discloses a coumarin compound and a synthesis method thereof, relates to the field of organic compounds, and aims to provide a coumarin compound and a synthesis method thereof. The synthesis method disclosed by the invention is simple to operate, high in yield and mild in reaction condition, and according to the reaction, 7-hydroxycoumarin, 4-hydroxycoumarin and 7-hydroxy-4-methylcoumarin are respectively obtained by utilizing aldol condensation reaction of aldehyde, ketone and active methylene or active hydrogen compounds. The whole reaction process is safe and environment-friendly, low in cost and high in economic benefit, and belongs to a green chemical process. The method is applied to the field of coumarin synthesis.

Description

technical field [0001] The invention relates to the field of organic compound synthesis, in particular to coumarin compounds and a synthesis method thereof. Background technique [0002] Natural product coumarin compounds exist in large quantities in the secondary metabolites of plants and microorganisms, and have various pharmacological activities, among which the antitumor effect is prominent. Natural coumarin compounds have good anti-tumor activity, and their cytotoxicity, water solubility and bioavailability are the main optimization directions for the modification of natural coumarin, mainly by modifying the 3, 4, 7, and 8 positions. The synthesized coumarin derivatives have the functions of anticoagulant, antitumor, antibacterial, antiviral and monitoring as fluorescent probes. [0003] As a new endogenous substance, lipoic acid participates in the important regulation of the mitochondria of the body. It is also an 8-carbon saturated fatty acid containing a ring disul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D409/12A61P35/00
CPCC07D409/12A61P35/00
Inventor 王英骥李妍李国东魏含笑李威刘雅珍张佰发
Owner HARBIN MEDICAL UNIVERSITY
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