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Raloxifene derivative and preparation method thereof

A technology of raloxifene and its derivatives, which is applied in the field of raloxifene derivatives and its preparation, can solve problems such as complex reaction raw materials, poor regioselectivity, and functional group tolerance and limitations, and achieve easy reaction conditions, The effect of simple reaction conditions and high yield

Active Publication Date: 2019-02-12
WENZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The classical approach to the synthesis of raloxifene relies on intermolecular Friedel-Crafts acylation 6 , but generally suffer from several limitations in the formation of environmentally harmful HCl, poor regioselectivity and functional group tolerance
Therefore, the synthesis of raloxifene derivatives often requires complex reaction raw materials

Method used

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  • Raloxifene derivative and preparation method thereof
  • Raloxifene derivative and preparation method thereof
  • Raloxifene derivative and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0040] step one:

[0041] react compound I and compound II in a solvent under the action of an Ag catalyst and an oxidizing agent to obtain compound II;

[0042] The compound I structural formula is:

[0043] The compound II structural formula is:

[0044] The structural formula of the compound III is:

[0045] Step two:

[0046] Reaction of compound III with NaSEt in a solvent to obtain compound VI;

[0047] The structural formula of the compound VI is:

[0048] Step three:

[0049] Compound IV and 1-(2-chloroethyl)piperidine, CsCO 3 , KI react to obtain raloxifene derivatives;

[0050] The structural formula of the raloxifene derivative is

[0051] The oxidant in the step 1 is K 2 S 2 o 8 .

[0052] The catalyst in said step one is silver nitrate.

[0053] The solvent of the step one is CH with a volume ratio of 1:1 3 CN and H 2 O mixture.

[0054] In the first step, the reaction is carried out under nitrogen atmosphere, the reaction temperature is ...

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PUM

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Abstract

The invention discloses a raloxifene derivative. A molecular structural formula is shown in the description. According to the raloxifene derivative prepared by the invention, raw materials are simpleand reaction conditions are easy to realize; the yield is relatively high; no harmful substances are generated in a reaction process; the raloxifene derivative is simple in raw materials and reactionconditions.

Description

technical field [0001] The invention relates to the field of organic chemistry, in particular to a raloxifene derivative and a preparation method thereof. Background technique [0002] Raloxifene, as a selective estrogen receptor modulator and anti-tubulin agent, is mainly used to treat postmenopausal osteoporosis in women. Its derivative DRL527 was found to be a mutation-selective antagonist of ERa (E353A) and ERb (E305A). Other relevant information has also been reported, raloxifene derivatives as polymerization inhibitors and as inhibitors of acetyl-CoA carboxylase. [0003] Given their importance in medicinal chemistry, it is of great interest to chemists to develop efficient methods for the synthesis of raloxifene derivatives. The classical approach to the synthesis of raloxifene relies on intermolecular Friedel-Crafts acylation 6 , but generally suffer from several limitations in the formation of environmentally harmful HCl, poor regioselectivity and functional grou...

Claims

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Application Information

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IPC IPC(8): C07D333/56
CPCC07D333/56
Inventor 周云兵金国庆王高全黄小波高文霞刘妙昌吴华悦
Owner WENZHOU UNIVERSITY
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