Compounds of class of styracin and cinepazid ester phenylpropionic acid, prepration method and application
A technology of phenylacrylic acid phenylpropylene and phenylacrylic acid, which is applied in drug combination, organic chemistry, drug delivery, etc., can solve the problems of limiting the universal applicability of drugs, low selectivity, and malignant killing of normal cells
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Embodiment approach
[0092] A further embodiment of the present invention is:
[0093] When the substituent X in the compound of formula (3) is oxygen, the substituent R is ethoxy (CH 3 CH 2 O) during, as shown in formula (4), be formula I-1 compound:
[0094] Formula (4)
[0095] where substituent R 6 , R 7 , R 8 The definition of is the same as formula (3).
[0096] Compounds of formula I-1 of the present invention include:
[0097] I-1-a. (E)-7-methoxyl ethyl phenylpropionate;
[0098] I-1-b. (E)-6,7-Dimethoxymethoxy-ethyl phenylpropionate;
[0099] I-1-c. (E)-6,8-dimethoxy-7-O-(4'-bromobenzyl)-phenylpropionic acid ethyl ester;
[0100] I-1-d. Ethyl (E)-7-nitrophenylpropionate;
[0101] I-1-e. (E) - ethyl 7-methoxymethoxyphenylpropionate;
[0102] I-1-f. (E)-6,8-dimethoxy-7-O-(2'-fluoro, 4'-bromobenzyl)-phenylpropionic acid ethyl ester;
[0103] I-1-g. (E)-6,7-dimethoxy-ethyl phenylpropionate;
[0104] I-1-h. ethyl cinnamate;
[0105] I-1-i. (E)-6,8-dimethoxy-7-O-(3'-bromobenzyl...
Embodiment 1
[0155] Example 1: Preparation of Compound I-i ((E)-(7-methoxymethoxy)phenylpropionic acid-(E)-(7'-methoxymethoxy)phenylpropenyl ester)
[0156]
[0157] This example relates to the general synthesis of compounds of formula (1) with cytotoxic activity. It specifically relates to the synthesis of compound (E)-(7-methoxymethoxy)phenylpropanoic acid-(E)-(7'-methoxymethoxy)phenylpropenyl ester. Dissolve p-methoxymethoxycinnamic acid (292mg, 1.4mmol), N,N-dicyclohexylcarbodiimide (318mg, 1.5mmol), 4-dimethylaminopyridine (34mg, 0.28mmol) in dichloro In methane, it was stirred at room temperature for 10 minutes, and white turbidity appeared, and a dichloromethane solution of p-methoxymethoxycinnamyl alcohol (300 mg, 15 mmol) was added, and stirred at room temperature for 24 hours. Celite was filtered, the filtrate was concentrated, and the crude product was separated by column chromatography (n-hexane / ethyl acetate=8:1, crude product / silica gel=1:50) to obtain 468 mg of a white s...
Embodiment 2-19
[0159] According to the method of Example 1, the compounds of Examples 2-19 shown in the following Table 1 were prepared:
[0160]
[0161] implement
Example number
compound
substituent
R 6
R 7
R 8
R 6′
R 7′
R 8′
2
I-a
H
OCH 3
H
H
OCH 3
H
3
I-b
OCH 3
OCH 3
OCH 3
H
OCH 3
H
4
I-c
H
NO 2
H
OCH 3
OCH 3
H
5
I-d
OCH 3
OCH 3
OCH 3
OCH 3
OCH 3
OCH 3
6
I-e
H
OCH 3
H
OCH 3
OCH 3
H
7
I-f
OCH 3
OCH 3
H
OCH 3
OCH 3
H
[0162]
[0163] List the physicochemical data of each compound in Table 1 below:
[0164] Compound I-a:
[0165] White solid, melting point: 63-64°C, Rf (n-hexane / ethyl acetate: 3 / 1): 0.71; ...
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