CN1218949C - Artemisine arylether derivatives and their preparing process - Google Patents
Artemisine arylether derivatives and their preparing process Download PDFInfo
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- CN1218949C CN1218949C CN 01113407 CN01113407A CN1218949C CN 1218949 C CN1218949 C CN 1218949C CN 01113407 CN01113407 CN 01113407 CN 01113407 A CN01113407 A CN 01113407A CN 1218949 C CN1218949 C CN 1218949C
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- Prior art keywords
- artemisinin
- ether derivatives
- compound
- coor4
- aryl ether
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Abstract
The present invention relates to artemisinin aromatic ether derivatives having a general formula of the right general formula. The derivatives have general antimalarial effect and the same obvious inhibiting effect on tumors through pharmacological tests.
Description
The invention belongs to terpenoid-artemisinin derivative and preparation method thereof in the organic chemistry.
Artemisinin (1) is the antimalarial effective constituent of Chinese medicine sweet wormwood (feverfew Herba Artemisiae annuae Artemisia annua L.).For solubleness and the bioavailability that improves it, synthesized a large amount of derivatives both at home and abroad, wherein Aryl Ether Derivatives of Artemisinin 2 also has repeatedly report (EP 0362730A1; ZL94113982.4; China's pharmaceutical chemistry magazine, 1996,6:22-25; J.Med.Chem.2001,44:58-68).
R=H in 2 formulas, F, Cl, Br, CH
3, CF
3, OH, OCH
3, COOH, COOCH
3, NO
2, NHCOCH
3Deng
They are in biological activity test, and many compounds have not only shown the antimalarial effect stronger than Artemisinin, and anti-tumor activity is arranged.In view of in we work the last stage, find that some artemisinin derivatives that contain cyano group 3 and 4 have stronger anti-tumor activity.
In 3,4 formulas
R1=replacement or unsubstituted aryl, heterocyclic radical
R2=H, alkyl (C
1-C
6)
Y=alkyl (C
2-C
14), aryl
Z＝O，S，NH，NR2
Tumor promotion and they act on the characteristics in G1 stage of tumour cell cycle (referring to Chinese patent 98114788.7; PTC/FR99/01359; Bioorg.Med.Chem.Lett.2001,11:5-8).
The object of the invention seeks that a kind of to have solubleness good, bioavailability height, the Aryl Ether Derivatives of Artemisinin that biological activity is strong.
The invention provides a class Aryl Ether Derivatives of Artemisinin and have following structure:
In 5 formulas, the Ar=phenyl, naphthyl, etc.
X＝(CH
2)n，O(CH
2)n，n＝0-5
R1＝H，CH
3
R2=replacement or unsubstituted aryl, heterocyclic radical.Substituting group be halogen (F, Cl, Br, I), CH
3, CF
3, OH, OR4, COOR4, O (CH
2) mCOOR4, OCH
2-CH=CH-COOR4 etc.,
m＝1-6
R3=CN, COOH, COOR4 etc.
R4=CH
3, C
2H
5, CH
2C
6H
5Deng
In following structural formula,
On behalf of β, wave molding (～) replace or/and α replaces
On behalf of β, straight line (-) replace
Dotted line (...) represent α to replace
The preparation method of this compounds is as follows:
Press earlier the method for narration among the ZL 94113982.4, Dihydroartemisinin or Dihydroartemisinin ethyl acetate or Dihydroartemisinin trifluoro-acetate are generated 6 with the phenolic compound that has the carboxylate group under an acidic catalyst effect, then its alkaline hydrolysis is become free carboxy acid 7, generate target compound 5 with hydroxyl cyanogen (or carboxylic esters) condensation again.
Basic hydrolysis: compound 6 is dissolved in the organic solvent (haloalkane such as chloroform, methylene dichloride, ethylene dichloride, alcohol is as C such as methyl alcohol, ethanol
1～C
5Lower alcohol), add alkali (yellow soda ash, salt of wormwood, sodium hydroxide, potassium hydroxide) 0-60 ℃ of reaction, compound 6 is 1: 1～10 with the mole number ratio of alkali.Pour salt solution after reacting completely into, after extracting with solvent (as ether or ethyl acetate), water layer diluted acid acidifying uses solvent (as ether or ethyl acetate) to extract again, after the extracting solution drying, and concentrated 7.
Condensation: compound 7 is dissolved in (haloalkane such as chloroform, methylene dichloride, ethylene dichloride) in the organic solvent, adds hydroxyl cyanogen (or carboxylic esters), DCC and DMAP are at 0-50 ℃ of stirring reaction, and four mole number ratio is 1: 1～3: 1～5: 0.01～0.1.Reaction finishes back elimination solid, and filtrate decompression concentrates, and the resistates purification by silica gel column chromatography promptly gets final compound.Particular compound sees Table 1-table 7.
Table 1
Table 2
Table 3
Table 4
Table 5
Table 6
Table 7
Aryl Ether Derivatives of Artemisinin of the present invention finds that through preliminary pharmacological screening they have obvious antineoplastic, immunoregulation effect and the antimalarial effect stronger than Artemisinin.Through pharmacological testing, the inhibition P338 of many compounds and the IC of A549
50At 30～90nM.The anti-mouse malaria effect ED of sequence number 5 compounds
90Be 6.36mg/kg (Artemisinin is 56.6mg/kg).
The present invention is further elaborated by following example, but does not limit the scope of the invention.
Embodiment 1 preparation
With ethanoyl Dihydroartemisinin (3.26 grams; 10mmol) be dissolved in the exsiccant methylene dichloride (50 milliliters); under the ice bath cooling, (2.7 restrain, 15mmol) to add the para hydroxybenzene methyl propionate; splash into trifluoroacetic acid (1 milliliter) under stirring; follow the tracks of with thin-layer chromatography, question response finishes substantially, washs successively with sodium hydrogen carbonate solution, water, saturated brine; the organic layer anhydrous magnesium sulfate drying concentrates the back and gets solid 1.6 grams (productive rate 35%) with silica gel column chromatography separation (5% ethyl acetate/petroleum ether).Its physical constant is seen sequence number 3.
The said products is added in the methyl alcohol (50 milliliters) of 2.5% potassium hydroxide, the 40C stirring reaction is poured salt solution into after reacting completely, use solvent ethyl acetate, water layer 10% hcl acidifying extracts secondary with solvent ethyl acetate again, after the extracting solution drying, concentrate amorphous solid 7.Its physical constant is seen sequence number 4.
Embodiment 2 preparations
Will between carboxylic acid group's Artemisinin phenylate (4.04 the gram, 10mmol) and prepared fresh to bromophenyl hydroxyl cyanogen (3.1 the gram, 15mmol), DCC (2.28 grams, 15mmol) and DMAP (15 milligrams) add methylene dichloride (200 milliliters), stirring at room reaction just has precipitation to generate soon.Reaction finishes back elimination solid, and filtrate decompression concentrates, and resistates purification by silica gel column chromatography, product are amorphous solid 3.83 grams (productive rate 64%).Its physical constant is seen sequence number 35.
Embodiment 3
With right-formyloxy Artemisinin phenylate (1 the gram, 2.5mmol) and prepared fresh between-bromine, neighbour-fluoroacetic acid ethoxycarbonyl phenyl hydroxyl cyanogen (1.1 the gram, 3.5mmol), DCC (0.55 gram, 2.7mmol) and DMAP (15 milligrams) add methylene dichloride (50 milliliters), stirring at room is reacted.Aftertreatment is with embodiment 2.Its physical constant is seen sequence number 24.
Embodiment 4
Will between-formyloxy Artemisinin phenylate (400 milligrams, 1mmol) and Alpha-hydroxy Phenylacetic acid ethylester (270 milligrams of 1.5mmol), DCC (228 milligrams, 1.5mmol) and DMAP (3 milligrams) add methylene dichloride (20 milliliters), stirring at room is reacted.Aftertreatment is with embodiment 2.Its physical constant is seen sequence number 45.
Embodiment 5
Will between-propionyloxy Artemisinin phenylate (430 milligrams, 1mmol) and Alpha-hydroxy Phenylacetic acid ethylester (250 milligrams of 1.5mmol), DCC (228 milligrams, 1.5mmol) and DMAP (5 milligrams) add trichloromethane (25 milliliters), 30 ℃ of stirring reactions.Aftertreatment is with embodiment 2.Its physical constant is seen sequence number 49.
Embodiment 6
With right-fluoroacetic acid base Artemisinin phenylate (300 milligrams, 0.7mmol) and Alpha-hydroxy right-the bromine phenethyl cyanogen (320 milligrams, 1.5mmol), DCC (230 milligrams, 1.5mmol) and DMAP (3 milligrams) add trichloromethane (20 milliliters), stirring at room is reacted.Aftertreatment is with embodiment 2.Its physical constant is seen sequence number 42.
Claims (9)
1. a class has the Aryl Ether Derivatives of Artemisinin of following structure,
Wherein: Ar=phenyl, naphthyl
X=(CH
2) n, O (CH
2) n, n is 0-5
R1＝H，CH
3
R2=replacement or unsubstituted aryl, substituting group are halogen, CH
3, CF
3, OH, OR4, COOR4, O (CH
2) mCOOR4, OCH
2-CH=CH-COOR4, m=1-6
R3＝CN，COOH，COOR4
R4＝CH
3，C
2H
5，C
6H
5CH
2。
2. Aryl Ether Derivatives of Artemisinin according to claim 1 is characterized in that:
When the Ar=phenyl,
X is (CH
2) n, O (CH
2) n, n=0-5
R1＝H，CH
3
R2=replaces or unsubstituted aryl
R3＝CN，COOH，COOR4
R4＝CH
3，C
2H
5，CH
2C
6H
5。
3. according to the described Aryl Ether Derivatives of Artemisinin of claim 2, it is characterized in that:
When R2 was substituted aryl, substituting group was a halogen, CH
3, CF
3, OH, OR4, COOR4, O (CH
2) mCOOR4, OCH
2-CH=CHCOOR4, m=1-6.
4. according to the described Aryl Ether Derivatives of Artemisinin of claim 1, it is characterized in that:
When the Ar=naphthyl, X is (CH
2) n, O (CH
2) n, n=0-5
R1＝H，CH
3
R2=replaces or unsubstituted aryl
R3＝CN，COOH，COOR4
R4＝CH
3，C
2H
5，CH
2C
6H
5。
5. Aryl Ether Derivatives of Artemisinin according to claim 4 is characterized in that:
When R2 was the aryl that replaces, substituting group was a halogen, CH
3, CF
3, OH, OR4, COOR4, O (CH
2) mCOOR4, OCH
2-CH=CHCOOR4, m=1-6.
6. the preparation method of Aryl Ether Derivatives of Artemisinin according to claim 1, it is characterized in that Dihydroartemisinin or Dihydroartemisinin ethyl acetate or Dihydroartemisinin trifluoro-acetate generate compound with the phenolic compound that has the carboxylate group under an acidic catalyst effect
Then its alkaline hydrolysis is generated the free carboxy acid, get compound
Generate target compound with hydroxyl cyanogen or carboxylic esters condensation again
In the formula
7. according to the preparation method of the described Aryl Ether Derivatives of Artemisinin of claim 6, it is characterized in that compound
Be dissolved in alkyl halide solvent or the lower alcohol, alkaline hydrolysis gets compound 0-60 ℃ of reaction
8. according to the preparation method of the described Aryl Ether Derivatives of Artemisinin of claim 7, it is characterized in that compound
Be dissolved in the haloalkane, add hydroxyl cyanogen or carboxylic esters at DCC and DMAP 0-50 ℃ of reaction, compound
9. according to the preparation method of the described Aryl Ether Derivatives of Artemisinin of claim 7, it is characterized in that haloalkane is that trichloromethane, methylene dichloride, ethylene dichloride, lower alcohol are C
1-C
5Alcohol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01113407 CN1218949C (en) | 2001-06-08 | 2001-06-08 | Artemisine arylether derivatives and their preparing process |
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|---|---|---|---|
| CN 01113407 CN1218949C (en) | 2001-06-08 | 2001-06-08 | Artemisine arylether derivatives and their preparing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1390840A CN1390840A (en) | 2003-01-15 |
| CN1218949C true CN1218949C (en) | 2005-09-14 |
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ID=4660133
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| CN 01113407 Expired - Fee Related CN1218949C (en) | 2001-06-08 | 2001-06-08 | Artemisine arylether derivatives and their preparing process |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1814601A (en) * | 2005-02-04 | 2006-08-09 | 中国科学院上海药物研究所 | Artemisine derivative with immune suppression action and medicinal composition |
| CN101580510B (en) * | 2009-05-27 | 2014-07-23 | 沈阳药科大学 | Artemisinin derivatives and application thereof |
| CN102010420B (en) * | 2010-10-12 | 2013-11-27 | 沈阳药科大学 | [(10S)-9,10-dihydroartemisinine-10-oxyl]benzaldehyde semicarbazones (sulfur) series substances as well as preparation method and application thereof |
| CN102010421A (en) * | 2010-11-19 | 2011-04-13 | 沈阳药科大学 | Artemisinin derivatives and application thereof |
| CN103113386B (en) * | 2013-02-20 | 2015-12-23 | 沈阳药科大学 | Nitrogen heterocyclic substituted-dihydro artemisinin derivative and application thereof |
-
2001
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