CN103012208B - Urea enzyme inhibitor phenyl benzyl propionyl hydroxamic acid and preparation method and use thereof - Google Patents

Urea enzyme inhibitor phenyl benzyl propionyl hydroxamic acid and preparation method and use thereof Download PDF

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CN103012208B
CN103012208B CN201210590630.XA CN201210590630A CN103012208B CN 103012208 B CN103012208 B CN 103012208B CN 201210590630 A CN201210590630 A CN 201210590630A CN 103012208 B CN103012208 B CN 103012208B
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hydroxamic acid
phenyl
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propionyl hydroxamic
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CN103012208A (en
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肖竹平
黄莘
王旭东
杨盼
周利虎
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Hangzhou Sangjiefei Technology Co., Ltd.
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Jishou University
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Abstract

The invention relates to a class of phenyl benzyl propionyl hydroxamic acid compounds. The phenyl benzyl propionyl hydroxamic acid compounds have following structural formulae which is as shown in the description, have good inhibition effects to urea enzyme, and can be used for preparing drugs for resisting gastritis, gastric ulcer, lithangiuria and the like. The invention discloses a preparation method of the phenyl benzyl propionyl hydroxamic acid compounds.

Description

Urease inhibitor phenylbenzyl propionyl hydroxamic acid and method for making thereof and purposes
Technical field
The present invention relates to a type urease inhibitor phenylbenzyl propionyl hydroxamic acid and method for making and they thereof and prepare the application in gastritis, Gastric Ulcer Treatment.
Technical background
Hp (Helicobacter pylari) can cause the various diseases such as gastritis, stomach ulcer, duodenal ulcer, gastratrophy, intestinal epithelial metaplasia, cancer of the stomach, gastric lymphoma.H.pylori is classified as first kind carcinogen by the World Health Organization in 1994 and IARC.According to statistics, the nearly half of world population has infected H.pylori, and in developing country, infection rate is up to 80-90%.The infection rate of China is about 60%.The H.pylori recall rate of gastritis sufferer is 80-90%, and Peptic Ulcers is higher, reaches more than 95%.Duodenal ulcer more than 90% and the stomach ulcer of about 80% are caused by H.pylori.Eradicating H.pylori is the above-mentioned disease for the treatment of and the prerequisite preventing recurrence.What current elimination H.pylori was the most frequently used is triplex process: a kind of proton pump inhibitor (omeprazole or lansoprazole) and two kinds of microbiotic (amoxycilline Trihydrate bp, Ofloxacine USP 23 or metronidazole).But omeprazole has obvious side effect: except causing the side effects such as stomachache, vomiting, flatulence, liver weight increase etc. also can be caused; Bring out carcinoid of stomach in addition, cause the danger such as renal failure.In addition H.pylori easily produces resistance to microbiotic used, and therefore, the efficient of this method declines just year by year.
As everyone knows, be a strong acid environment in stomach, the main reason that Hp can be survived in stomach is its urease activity.The ammonia that urease hydrolyze urea discharges can improve pH value, and current research display, in receptor structure, urea molecule is Hp perception and the key factor avoiding gastric acid environment.Therefore the H.pylori that act as of urease has built a suitable microenvironment.Some other germ, as proteus vulgaris (Proteus vulgaris), Proteus mirabilis (Proteus mirabilis), ureaplasma urealyticum (Ureaplasma urealyticum) etc., after they infect urinary tract system, because the effect of urease causes the pH of urine to raise, cause the precipitation of the materials such as magnesium ammonium phosphate, and then develop into lithangiuria.There is the pathogenic bacteria of urease activity or to produce ammonia be self that vital movement provides nitrogenous source by urease hydrolyze urea, or utilize the alkalescence of ammonia to provide a suitable microenvironment for its existence.Therefore blocked urease activity, just can effectively kill this kind of germ.Therefore, urease inhibitor will become the first-line drug for the treatment of this kind of disease.But existing urease inhibitor comes with some shortcomings, such as N-acetylhydroxylamine due to activity low, consumption is large, result in some side effects, and highly active di(2-ethylhexyl)phosphate amides urease inhibitor is unstable in sour environment, hinders its application clinically.Therefore the screening of new and effective low toxicity urease inhibitor is the key developing this kind of medicine.
Summary of the invention
Utilize computer modeling technique, based on scaffold hopping principle, design and synthesize the new urea enzyme inhibitors with structure shown in I.Test shows, some compound shows excellent inhibit activities to urease.
The object of the invention is to design and synthesize a series of phenylbenzyl propionyl hydroxamic acid (I) type urease inhibitor, on the basis of further investigation structure activity relationship, find the new urea enzyme inhibitors that activity is higher, toxic side effect is lower, and the method for making of phenylbenzyl propionyl hydroxamic acid series compound is provided.
Technical scheme of the present invention is as follows:
Phenylbenzyl propionyl hydroxamic acid series compound, they have following general structure:
R in formula I 1, R 2, R 3, R 4, R 5, R 6and R 7definition take from following each group arbitrary group:
(1) R 4=R 5=R 7=H and R 1=R 2=R 3=OH, R 6=CH 3, C 2h 5, NO 2, CN, NMe 2, NEt 2, F, Cl, Br, OMe or OEt;
(2) R 4=R 6=R 7=H and R 1=R 2=R 3=OH, R 5=CH 3, C 2h 5, NO 2, CN, NMe 2, NEt 2, F, Cl, Br, OMe or OEt;
(3) R 4=R 7=H, R 1=R 2=R 3=OH and R 5=R 6=NO 2, CN, NH 2, NHR, NR 2, F, Cl, Br, OH, OMe or OEt;
(4) R 4=H, R 1=R 2=R 3=OH and R 5=R 6=R 7=OH, OMe or OEt;
(5) R 1=R 4=R 5=R 7=H and R 2=R 3=OH, R 6=CH 3, C 2h 5, NO 2, CN, NMe 2, NEt 2, F, Cl, Br, OMe or OEt;
(6) R 1=R 4=R 6=R 7=H and R 2=R 3=OH, R 5=CH 3, C 2h 5, NO 2, CN, NMe 2, NEt 2, F, Cl, Br, OMe or OEt;
(7) R 1=R 4=R 7=H, R 2=R 3=OH and R 5=R 6=OH, F, Cl, Br, OMe or OEt;
(8) R 1=R 4=H, R 2=R 3=OH and R 5=R 6=R 7=OH, OMe or OEt;
(9) R 1=R 2=R 4=R 5=R 7=H and R 3=OH, R 6=CH 3, C 2h 5, NO 2, CN, NMe 2, NEt 2, F, Cl, Br, OMe or OEt;
(10) R 1=R 2=R 4=R 6=R 7=H and R 3=OH, R 5=NO 2, NMe 2, F, Cl, Br, OMe or OEt.
Prepare a method for above-mentioned phenylbenzyl propionyl hydroxamic acid series compound, it comprises the following steps:
Step 1. gets 2-R 4-3-R 5-4R 6-5R 7substituted benzene Acetyl Chloride 98Min. (IV) is dissolved in anhydrous diethyl ether, adds 1-R 1-2-R 2-3-R 3substituted benzene (III) and catalyzer trifluoromethanesulfonic acid ketone, stir 10 ~ 25h, the ratio of amount of substance is: 2-R 4-3-R 5-4R 6-5R 7substituted benzene Acetyl Chloride 98Min. (IV): 1-R 1-2-R 2-3-R 3substituted benzene (III): trifluoromethanesulfonic acid ketone=1:(2 ~ 3): 2, control temperature of reaction between 60 ~ 120 DEG C, reaction 6 ~ 36h, cooling, pour in the beaker of trash ice and 30% concentrated hydrochloric acid, the mass ratio of trash ice and 30% hydrochloric acid is 2:1, stir 30min, static layering, a small amount of benzene extracting twice of aqueous phase, merge organic phase, add dehydrated alcohol and 5% gac reflux 30 minutes, filtered while hot, adds sherwood oil, cool to obtain white crystal, i.e. 2-R 1-3-R 2-4-R 3-2 '-R 4-3 '-R 5-4 '-R 6-5 '-R 7replace phenylbenzyl ketone (II);
Step 2. is by 2-R 1-3-R 2-4-R 3-2 '-R 4-3 '-R 5-4 '-R 6-5 '-R 7replace phenylbenzyl ketone (II), Zn, NH 4cl, ethyl bromoacetate are ground evenly together, the ratio of amount of substance: 2-R 1-3-R 2-4-R 3-2 '-R 4-3 '-R 5-4 '-R 6-5 '-R 7replace phenylbenzyl ketone (II): Zn:NH 4cl: ethyl bromoacetate=1:12:8:(1 ~ 5), room temperature pours saturated NH into after leaving standstill 7 ~ 24h 4cl solution, AcOEt extracts, anhydrous MgSO 4drying, boils off solvent, and with silica column purification, eluent volume ratio: AcOEt: sherwood oil=2:1 ~ 1:9, obtains 3-(2 '-R 4-3 '-R 5-4 '-R 6-5 '-R 7substituted benzyl)-3-(2-R 1-3-R 2-4-R 3substituted-phenyl)-3-hydroxypropionate (V);
Step 3. is by 3-(2 '-R 4-3 '-R 5-4 '-R 6-5 '-R 7substituted benzyl)-3-(2-R 1-3-R 2-4-R 3substituted-phenyl)-3-hydroxypropionate (V) is dissolved in anhydrous methanol, and the consumption of methyl alcohol is every gram of 3-(2 '-R 4-3 '-R 5-4 '-R 6-5 '-R 7substituted benzyl)-3-(2-R 1-3-R 2-4-R 3substituted-phenyl)-3-hydroxypropionate (V) anhydrous methanol 8 ~ 20mL, add NH 2after OHHCl, sodium methylate, stir 10 ~ 35h, the ratio of amount of substance is: 3-(2 '-R 4-3 '-R 5-4 '-R 6-5 '-R 7substituted benzyl)-3-(2-R 1-3-R 2-4-R 3substituted-phenyl)-3 hydroxypropionate (V): NH 2oHHCl:CH 3oNa=1:4:(2 ~ 8), boil off methyl alcohol, then add deionized water, with AcOEt extraction, merge organic layer, MgSO 4drying, boils off solvent, and with silica column purification, eluent volume ratio: AcOEt: sherwood oil=3:1 ~ 1:7, obtains 3-(2 '-R 4-3 '-R 5-4 '-R 6-5 '-R 7substituted benzyl)-3-(2-R 1-3-R 2-4-R 3substituted-phenyl)-3-hydroxyl propionyl hydroxamic acid (I), wherein said R 1, R 2, R 3, R 4, R 5, R 6and R 7definition identical with above-mentioned definition.
Phenylbenzyl propionyl hydroxamic acid series compound of the present invention has good inhibit activities to urease, and wherein some is better than the activity of positive control N-acetylhydroxylamine.Therefore may be used for the medicine preparing gastritis, stomach ulcer or anti-lithangiuria.
Embodiment
Further describe the present invention by following examples, but scope of the present invention should be noted not by any restriction of these embodiments.
Embodiment 1:3-(4-luorobenzyl)-3-(3,4-dihydroxy phenyl) preparation of-3-hydroxyl propionyl hydroxamic acid (32)
Get 0.7mL in fluorophenylacetyl chloride dissolving and 20mL anhydrous diethyl ether, add 1.1g 1 wherein again, 2-dihydroxy-benzene and 3g trifluoromethanesulfonic acid ketone, at 90 DEG C, stir 22h, cooling, pours in the beaker of 10g trash ice and 5g 30% concentrated hydrochloric acid, stir 30min, static layering, a small amount of benzene extracting twice of aqueous phase, merges organic phase.Concentrated, add dehydrated alcohol and 5% gac reflux 30 minutes, filtered while hot, adds sherwood oil, cools to obtain white crystal 3,4-dihydroxyl-4 '-fluorine phenylbenzyl ketone 2.19g, productive rate 89%.Get 738mg 3,4-dihydroxyl-4 again '-fluorine phenylbenzyl ketone, 1.9gZn, 1.1gNH 4cl, 1.3mL ethyl bromoacetate is ground together, leaves standstill 8h, pours the saturated NH of 100mL into 4with AcOEt extraction after Cl solution, anhydrous MgSO 4dry, boil off solvent, purification by silica gel column chromatography, eluent volume ratio: AcOEt: sherwood oil=1:5, obtains yellow oily liquid 3-(4-luorobenzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxypropionate 771mg, productive rate 81%, by 3-(4-luorobenzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxypropionate 334mg is dissolved in 5mL anhydrous methanol, adds NH under stirring 2oHHCl 278mg, CH 3oNa 324mg, stirring at room temperature 21h, add 8mL deionized water after boiling off methyl alcohol, AcOEt extracts, and merges organic layer, anhydrous MgSO 4drying, boils off solvent, purification by silica gel column chromatography, eluent volume ratio: AcOEt: sherwood oil=1:1, obtains white solid 3-(4-luorobenzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (32) 218mg, productive rate 68%.Fusing point: 150 ~ 151 DEG C.EIMS m/z:321[M +]; 1HNMR(400MHz,CDCl 3,δ):10.21(s,1H),8.75(s,1H),7.27(dd,2H),7.19(dd,2H),6.98~6.93(m,2H),6.71(d,1H),5.59(s,1H),5.35(s,2H),3.15(s,2H),2.66~2.47(m,2H)。
Embodiment 2:
By the method that embodiment 1 is similar, be raw material with the phenylbenzyl ketone of different replacement forms, synthesized the phenylbenzyl propionyl hydroxamic acid series compound 1 ~ 80 listed by table 1.
Each R group of phenylbenzyl propionyl hydroxamic acid series compound in table 1 general formula I
Sequence number R 1 R 2 R 3 R 4 R 5 R 6 R 7
1 OH OH OH H H F H
2 OH OH OH H H Cl H
3 OH OH OH H H Br H
4 OH OH OH H H OMe H
5 OH OH OH H H OEt H
6 OH OH OH H H NO 2 H
7 OH OH OH H H NMe 2 H
8 OH OH OH H H NEt 2 H
Sequence number R 1 R 2 R 3 R 4 R 5 R 6 R 7
9 OH OH OH H H CN H
10 OH OH OH H H Me H
11 OH OH OH H H Et H
12 OH OH OH H F H H
13 OH OH OH H Cl H H
14 OH OH OH H Br H H
15 OH OH OH H OMe H H
16 OH OH OH H OEt H H
17 OH OH OH H NO 2 H H
18 OH OH OH H NMe 2 H H
19 OH OH OH H NEt 2 H H
20 OH OH OH H CN H H
21 OH OH OH H Me H H
22 OH OH OH H Et H H
23 OH OH OH H OH OH H
24 OH OH OH H OMe OMe H
25 OH OH OH H OEt OEt H
26 OH OH OH H F F H
27 OH OH OH H Cl Cl H
28 OH OH OH H Br Br H
29 OH OH OH H OH OH OH
30 OH OH OH H OMe OMe OMe
31 OH OH OH H OEt OEt OEt
32 H OH OH H H F H
33 H OH OH H H Cl H
34 H OH OH H H Br H
35 H OH OH H H OMe H
Sequence number R 1 R 2 R 3 R 4 R 5 R 6 R 7
36 H OH OH H H OEt H
37 H OH OH H H NO2 H
38 H OH OH H H NMe 2 H
39 H OH OH H H NEt 2 H
40 H OH OH H H CN H
41 H OH OH H H Me H
42 H OH OH H H Et H
43 H OH OH H F H H
44 H OH OH H Cl H H
45 H OH OH H Br H H
46 H OH OH H OMe H H
47 H OH OH H OEt H H
48 H OH OH H NO 2 H H
49 H OH OH H NMe 2 H H
50 H OH OH H NEt 2 H H
51 H OH OH H CN H H
52 H OH OH H Me H H
53 H OH OH H Et H H
54 H OH OH H OH OH H
55 H OH OH H OMe OMe H
56 H OH OH H OEt OEt H
57 H OH OH H F F H
58 H OH OH H Cl Cl H
59 H OH OH H Br Br H
60 H OH OH H OH OH OH
61 H OH OH H OMe OMe OMe
62 H OH OH H OEt OEt OEt
Sequence number R 1 R 2 R 3 R 4 R 5 R 6 R 7
63 H H OH H H F H
64 H H OH H H Cl H
65 H H OH H H Br H
66 H H OH H H OMe H
67 H H OH H H OEt H
68 H H OH H H NO 2 H
69 H H OH H H NMe 2 H
70 H H OH H H NEt 2 H
71 H H OH H H CN H
72 H H OH H H Me H
73 H H OH H H Et H
74 H H OH H F H H
75 H H OH H Cl H H
76 H H OH H Br H H
77 H H OH H OMe H H
78 H H OH H OEt H H
79 H H OH H NO 2 H H
80 H H OH H NMe 2 H H
Note: initial feed is all purchased from aldrich company
Embodiment 3: the Inhibiting enzyme activity of compound
25 μ LJack bean(sword beans are added in 96 orifice plates) urease (4U) and 25 μ L(1mM) solution of test compound, 2h is cultivated at 37 DEG C, then the phosphoric acid buffer 55 μ L containing 100mM urea and 100mM is added, 15min is cultivated at 30 DEG C, add 45 μ L phenol reagents (containing phenol 1% and the mixing solutions containing Sodium Nitroprusside 0.005%) and 70 μ L alkali reagents (mixing solutions containing the NaOCl of NaOH0.5% and 0.1% reactive chlorine), after at room temperature placing 50min, measure the OD value under 630nm by microplate reader, percent inhibition is calculated as follows:
All tests are all carry out (the K of 0.01M in the solution of 8.2 at pH 2hPO 4, the LiCl of the EDTA of 1mM, 0.01M), active height is with half inhibiting rate IC 50represent, IC 50less, the activity of this compound is higher, the results are shown in Table 2.
Result shows: part phenylbenzyl propionyl hydroxamic acid series compound of the present invention has good inhibit activities to urease, and some are higher than the activity of positive control N-acetylhydroxylamine.
Table 2 phenylbenzyl propionyl hydroxamic acid series compound is to the restraining effect (IC of sword bean urease 50)
Sequence number IC 50(μM) Sequence number IC 50(μM) Sequence number IC 50(μM)
1 3.1 28 183 55 65
2 129 29 526 56 0.09
2 64 30 54 57 349
4 59 31 87 58 85
5 151 32 0.3 59 124
6 249 33 32 60 2.1
7 2.8 34 63 61 38
8 127 35 451 62 142
9 219 36 196 63 447
10 148 37 152 64 21
11 126 38 68 65 68
12 32 39 184 66 77
13 71 40 143 67 118
14 97 41 586 68 206
15 174 42 272 69 122
16 262 43 88 70 346
17 518 44 336 71 82
18 8.3 45 53 72 6.5
19 173 46 312 73 259
20 321 47 4.8 74 52
21 138 48 128 75 31
22 352 49 107 76 47
23 0.8 50 59 77 317
24 85 51 62 78 0.6
25 92 52 97 79 206
26 0.4 53 107 80 331
27 174 54 8.2 N-acetylhydroxylamine 17
Result shows, compound 1,7,18,23,26,32,54,56,60,72,78 pairs of sword bean ureases have the restraining effect shown, and restraining effect comparatively N-acetylhydroxylamine is higher, active best 188 times that reach N-acetylhydroxylamine.
The above embodiment of the present invention shows: in the phenylbenzyl propionyl hydroxamic acid series compound of synthesis, the Urease inhibitor effect of a part is higher than positive control N-acetylhydroxylamine, the anxious poison experiment of rat is shown, it is the non-toxic of States Pharmacopoeia specifications that the dosage of compound 7,32,56,60,78 reaches this dosage of 5g/kg() time, do not find that rat has signs of toxicity, therefore, under normal dose, they are safe as medicinal application.
The fusing point of compound 1 ~ 80, mass spectrum and hydrogen modal data:
3-(4-luorobenzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl hydroxamic acid (1):
Mp 179~180℃;EIMS m/z:337[M +]; 1H NMR(400MHz,CDCl3,δ):10.39(s,1H),8.82(s,1H),7.28(dd,2H),7.19(dd,2H),6.40(d,1H),6.22(d,1H),5.61(s,1H),5.34(s,3H),3.10(s,2H),2.72~2.50(m,2H)。
3-(4-chlorobenzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl hydroxamic acid (2):
Mp 200~201℃;EIMS m/z:353[M+];1H NMR(400MHz,CDCl3,δ):10.40(s,1H),8.80(s,1H),7.44(dd,2H),7.23(dd,2H),6.42(d,1H),6.27(d,1H),5.61(s,1H),5.36(s,3H),3.12(s,2H),2.75~2.52(m,2H)。
3-(4-bromobenzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl hydroxamic acid (3):
Mp 231~232℃;EIMS m/z:397[M+];1H NMR(400MHz,CDCl3,δ):10.42(s,1H),8.73(s,1H),7.92(dd,2H),7.18(dd,2H),6.40(d,1H),6.26(d,1H),5.65(s,1H),5.36(s,3H),3.12(s,2H),2.80~2.64(m,2H)。
3-(4-methoxy-benzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl hydroxamic acid (4):
Mp 197~198℃;EIMS m/z:349[M +]; 1H NMR(400MHz,CDCl 3,δ):10.46(s,1H),8.87(s,1H),7.16(dd,2H),6.94(dd,2H),6.40(d,1H),6.27(d,1H),5.60(s,1H),5.35(s,3H),3.83(s,3H),3.11(s,2H),2.70~2.55(m,2H)。
3-(4-ethoxy benzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl hydroxamic acid (5):
Mp 199~200℃;EIMS m/z:363[M +]; 1H NMR(400MHz,CDCl 3,δ):10.33(s,1H),8.74(s,1H),7.18(dd,2H),6.94(dd,2H),6.43(d,1H),6.27(d,1H),5.65(s,1H),5.35(s,3H),4.10~4.07(m,2H),1.32(t,3H),3.12(s,2H),2.76~2.54(m,2H)。
3-(4-nitrobenzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl hydroxamic acid (6):
Mp 198~199℃;EIMS m/z:364[M +]; 1H NMR(400MHz,CDCl 3,δ):10.36(s,1H),8.69(s,1H),8.21(dd,2H),7.55(dd,2H),6.40(d,1H),6.26(d,1H),5.52(s,1H),5.35(s,3H),3.10(s,2H),2.74~2.58(m,2H)。
3-(4-N, N-dimethylaminobenzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl hydroxamic acid (7):
Mp 205~206℃;EIMS m/z:362[M +]; 1H NMR(400MHz,CDCl 3,δ):10.43(s,1H),8,86(s,1H),7.11(dd,2H),6.71(dd,2H),6.48(d,1H),6.24(d,1H),5.67(s,1H),5.33(s,3H),3.15(s,2H),3.06(s,6H),2.60~2.49(m,2H)。
3-(4-N, N-diethylin benzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl hydroxamic acid (8):
Mp 225~227℃;EIMS m/z:390[M +]; 1H NMR(400MHz,CDCl 3,δ):10.36(s,1H),8.74(s,1H),7.12(dd,2H),6.77(dd,2H),6.39(d,1H),6.28(d,1H),5.54(s,1H),5.41(s,3H),3.43~3.38(m,4H),3.10(s,2H),2.58~2.51(m,2H),1.15(t,6H)。
3-(4-cyanobenzyls)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl hydroxamic acid (9):
Mp 188~189℃;EIMS m/z:344[M +]; 1H NMR(400MHz,CDCl 3,δ):10.42(s,1H),8.70(s,1H),7.59(dd,2H),7.47(dd,2H),6.38(d,1H),6.28(d,1H),5.62(s,1H),5.33(s,3H),3.12(s,2H),2.75~2.56(m,2H)。
3-(4-methyl-benzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl hydroxamic acid (10):
Mp 172~173℃;EIMS m/z:333[M +]; 1H NMR(400MHz,CDCl 3,δ):9.98(s,1H),8.68(s,1H),7.18(dd,2H),6.98(dd,2H),6.39(d,1H),6.31(d,1H),5.65(s,1H),5.35(s,3H),3.20(s,2H),2.64~2.47(m,2H),2.34(s,3H)。
3-(4-Ethylbenzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl hydroxamic acid (11):
Mp 195~197℃;EIMS m/z:347[M +]; 1H NMR(400MHz,CDCl 3,δ):10.49(s,1H),8.68(s,1H),7.05(dd,4H),6.60(d,1H),6.31(d,1H),5.74(s,1H),5.40(s,3H),3.12(s,2H),2.73~2.49(m,2H),2.62~2.58(m,2H),1.25(t,3H)。
3-(3-luorobenzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl hydroxamic acid (12):
Mp 180~182℃;EIMS m/z:337[M +]; 1H NMR(400MHz,CDCl 3,δ):10.34(s,1H),8.69(s,1H),7.41~7.37(m,1H),7.09~7.05(m,2H),6.83(dd,1H),6.40(d,1H),6.31(d,1H),5.38(s,3H),5.29(s,1H),3.22(s,2H),2.63~2.47(m,2H)。
3-(3-chlorobenzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl hydroxamic acid (13):
Mp 199~201℃;EIMS m/z:353[M +]; 1H NMR(400MHz,CDCl 3,δ):10.35(s,1H),8.72(s,1H),7.49(s,1H),7.35~7.29(m,2H),7.20~7.15(m,1H),6.43(d,1H),6.25(d,1H),5.70(s,1H),5.33(s,3H),3.11(s,2H),2.72~2.55(m,2H)。
3-(3-bromobenzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl hydroxamic acid (14):
Mp 229~230℃;EIMS m/z:397[M +]; 1H NMR(400MHz,CDCl 3,δ):10.37(s,1H),8.76(s,1H),7.46~7.40(m,2H),7.30~7.25(m,2H),6.42(d,1H),6.29(d,1H),5.61(s,1H),5.38(s,3H),3.28(s,2H),2.80~2.57(m,2H)。
3-(3-methoxy-benzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl hydroxamic acid (15):
Mp 197~199℃;EIMS m/z:349[M +]; 1H NMR(400MHz,CDCl 3,δ):10.27(s,1H),8.59(s,1H),7.29(t,1H),7.07(s,1H),6.89~6.80(m,2H),6.40(d,1H),6.26(d,1H),5.67(s,1H),5.35(s,3H),3.83(s,3H),3.12(s,2H),2.74~2.61(m,2H)。
3-(3-ethoxy benzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl hydroxamic acid (16):
Mp 201~203℃;EIMS m/z:363[M +];H NMR(400MHz,CDCl 3,δ):10.42(s,1H),8.76(s,1H),7.29(t,1H),7.07(s,1H),6.87~6.80(m,2H),6.39(d,1H),6.29(d,1H),5.70(s,1H),5.33(s,3H),4.09(q,2H),3.13(s,2H),2.78~2.62(m,2H),1.32(t,3H)。
3-(3-nitrobenzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl hydroxamic acid (17):
Mp 205~207℃;EIMS m/z:364[M +]; 1H NMR(400MHz,CDCl 3,δ):10.46(s,1H),8.78(s,1H),8.20~8.06(m,2H),7.70~7.64(m,2H),6.45(d,1H),6.26(d,1H),5.66(s,1H),5.31(s,3H),3.12(s,2H),2.80~2.61(m,2H)。
3-(3-N, N-dimethylaminobenzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl hydroxamic acid (18):
Mp 205~206℃;EIMS m/z:362[M +]; 1H NMR(400MHz,CDCl 3,δ):10.34(s,1H),8.77(s,1H),7.22(t,1H),6.78~6.72(m,2H),6.68~6.62(m,1H),6.38(d,1H),6.28(d,1H),5.50(s,1H),5.37(s,3H),3.06(s,6H),3.15(s,2H),2.80~2.62(m,2H)。
3-(3-N, N-diethylin benzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl hydroxamic acid (19):
Mp 225~227℃;EIMS m/z:390[M +]; 1H NMR(400MHz,CDCl 3,δ):10.36(s,1H),8.75(s,1H),7.22(t,1H),7.10~7.05(m,1H),6.74(s,1H),6.64~6.61(m,1H),6.43(d,1H),6.30(d,1H),5.61(s,1H),5.32(s,3H),3.41(q,4H),3.13(s,2H),2.65~2.49(m,2H),1.15(t,6H)。
3-(3-cyanobenzyls)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl hydroxamic acid (20):
Mp 187~189℃;EIMS m/z:344[M +]; 1H NMR(400MHz,CDCl 3,δ):10.38(s,1H),8.75(s,1H),8.01(s,1H),7.78~7.73(m,1H),7.59~7.56(m,1H),7.10(t,1H),6.40(d,1H),6.28(d,1H),5.63(s,1H),5.35(s,3H),3.12(s,2H),2.81~2.64(m,2H)。
3-(3-methyl-benzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl hydroxamic acid (21):
Mp 171~173℃;EIMS m/z:333[M +]; 1H NMR(400MHz,CDCl 3,δ):10.24(s,1H),8.66(s,1H),7.50(t,1H),7.16(s,1H),7.10~7.05(m,2H),6.38(d,1H),6.25(d,1H),5.54(s,1H),5.30(s,3H),2.98(s,2H),2.77~2.56(m,2H),2.34(s,3H)。
3-(3-Ethylbenzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl hydroxamic acid (22):
Mp 195~197℃;EIMS m/z:347[M +]; 1H NMR(400MHz,CDCl 3,δ):10.39(s,1H),8.77(s,1H),5.61(s,1H),6.41(d,1H),6.29(d,1H),5.33(s,3H),7.12~7.07(m,2H),7.22(s,1H),7.57(t,1H),2.60(q,2H),1.25(t,3H),3.14(s,2H),2.82~2.65(m,2H)。
3-(3,4-dihydroxy benzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl hydroxamic acid (23):
Mp 200~201℃;EIMS m/z:351[M +]; 1H NMR(400MHz,CDCl 3,δ):10.21(s,1H),8.58(s,1H),6.86(d,1H),6.74~6.66(m,2H),6.45(d,1H),6.26(d,1H),5.67(s,1H),5.40(s,5H),3.22(s,2H),2.69~2.48(m,2H)。
3-(3,4-dimethoxy-benzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl hydroxamic acid (24):
Mp 219~221℃;EIMS m/z:379[M +]; 1H NMR(400MHz,CDCl 3,δ):10.17(s,1H),8.87(s,1H),6.85~6.73(m,3H),6.40(d,1H),6.28(d,1H),5.51(s,1H),5.36(s,3H),3.83(s,6H),3.11(s,2H),2.79~2.64(m,2H)。
3-(3,4-diethoxy benzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl hydroxamic acid (25):
Mp 233~234℃;EIMS m/z:407[M +]; 1H NMR(400MHz,CDCl 3,δ):10.23(s,1H),8.59(s,1H),6.85~6.72(m,3H),6.39(d,1H),6.33(d,1H),5.55(s,1H),5.41(s,3H),4.09(q,4H),3.13(s,2H),2.69~2.47(m,2H),1.32(t,6H)。
3-(3,4-difluorobenzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl hydroxamic acid (26):
Mp 200~202℃;EIMS m/z:355[M +]; 1H NMR(400MHz,CDCl 3,δ):10.18(s,1H),8.69(s,1H),7.04(dd,1H),7.17(d,1H),6.81(d,1H),6.42(d,1H),6.28(d,1H),5.72(s,1H),5.34(s,3H),3.15(s,2H),2.63~2.47(m,2H)。
3-(3,4-dichloro benzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl hydroxamic acid (27):
Mp 223~224℃;EIMS m/z:387[M +]; 1H NMR(400MHz,CDCl 3,δ):10.31(s,1H),8.76(s,1H),7.68(d,1H),7.43(d,1H),7.11(dd,1H),6.40(d,1H),6.28(d,1H),5.70(s,1H),5.35(s,3H),3.22(s,2H),2.66~2.51(m,2H)。
3-(3,4-dibromo-benzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl hydroxamic acid (28):
Mp 252~253℃;EIMS m/z:477[M +]; 1H NMR(400MHz,CDCl 3,δ):10.47(s,1H),8.78(s,1H),7.44(d,1H),7.33(d,1H),7.12(dd,1H),6.43(d,1H),6.25(d,1H),5.58(s,3H),5.52(s,1H),2.99(s,2H),2.76~2.50(m,2H)。
3-(3,4,5-trihydroxy-benzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl hydroxamic acid (29):
Mp 211~213℃;EIMS m/z:367[M +]; 1H NMR(400MHz,CDCl 3,δ):10.02(s,1H),8.59(s,1H),6.42(d,2H),6.39(d,1H),6.28(d,1H),5.62(s,1H),5.37(s,6H),3.13(s,2H),2.64~2.50(m,2H)。
3-(3,4,5-trimethoxy benzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl hydroxamic acid (30): Mp 233 ~ 234 DEG C; EIMS m/z:409 [M +]; 1h NMR(400MHz, CDCl 3, δ): 10.28(s, 1H), 8.90(s, 1H) and, 6.43(d, 1H), 6.33(d, 2H) and, 6.27(d, 1H), 5.59(s, 1H) and, 5.34(s, 3H), 3.83(s, 9H) and, 3.03(s, 2H), 2.75 ~ 2.59(m, 2H).
3-(3,4,5-triethoxy benzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl hydroxamic acid (31): Mp 248 ~ 249 DEG C; EIMS m/z:451 [M +]; 1h NMR(400MHz, CDCl 3, δ): 10.29(s, 1H), 8.87(s, 1H) and, 6.40(d, 1H), 6.33(d, 2H) and, 6.28(d, 1H), 5.57(s, 1H) and, 5.37(s, 3H), 4.09(q, 6H) and, 3.10(s, 2H), 2.69 ~ 2.51(m, 2H), 1.32(t, 9H).
3-(4-luorobenzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (32):
Mp 150~151℃;EIMS m/z:321[M +]; 1H NMR(400MHz,CDCl 3,δ):10.21(s,1H),8.75(s,1H),7.27(dd,2H),7.19(dd,2H),6.98~6.93(m,2H),6.71(d,1H),5.59(s,1H),5.35(s,2H),3.15(s,2H),2.66~2.47(m,2H)。
3-(4-chlorobenzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (33):
Mp 181~183℃;EIMS m/z:337[M +]; 1H NMR(400MHz,CDCl 3,δ):10.58(s,1H),8.66(s,1H),5.64(s,1H),6.96~6.90(m,2H),6.72(d,1H),5.38(s,2H),7.44(dd,2H),7.23(dd,2H),3.02(s,2H),2.81~2.63(m,2H)。
3-(4-bromobenzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (34):
Mp 221~223℃;EIMS m/z:381[M +]; 1H NMR(400MHz,CDCl 3,δ):10.37(s,1H),8.58(s,1H),7.92(dd,2H),7.18(dd,2H),6.97~6.92(m,2H),6.71(d,1H),5.65(s,1H),5.34(s,2H),3.14(s,2H),2.54~2.43(m,2H)。
3-(4-methoxy-benzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (35):
Mp 175~176℃;EIMS m/z:333[M +]; 1H NMR(400MHz,CDCl 3,δ):10.38(s,1H),8.66(s,1H),7.18(dd,2H),6.96~6.90(m,2H),6.94(dd,2H),6.71(d,1H),5.50(s,1H),5.35(s,2H),3.05(s,2H),2.55~2.49(m,2H)。
3-(4-ethoxy benzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (36):
Mp 194~196℃;EIMS m/z:347[M +]; 1H NMR(400MHz,CDCl 3,δ):10.40(s,1H),8.69(s,1H),7.16(dd,2H),6.97~6.92(m,2H),6.96(dd,2H),6.70(d,1H),5.56(s,1H)5.32(s,2H),4.09(q,2H),3.11(s,2H),2.64~2.52(m,2H),1.32(t,3H)。
3-(4-nitrobenzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (37):
Mp 197~199℃;EIMS m/z:348[M +]; 1H NMR(400MHz,CDCl 3,δ):10.27(s,1H),8.67(s,1H),8.21(dd,2H),7.55(dd,2H),6.97~6.93(m,2H),6.73(d,1H),5.50(s,1H),5.34(s,2H),3.14(s,2H),2.75~2.53(m,2H)。
3-(4-N, N-dimethyl benzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (38):
Mp 191~193℃;EIMS m/z:346[M +]; 1H NMR(400MHz,CDCl 3,δ):10.36(s,1H),8.78(s,1H),7.11(dd,2H),6.98~6.93(m,2H),6.71(dd,2H),6.70(d,1H),5.57(s,1H),5.35(s,2H),3.13(s,2H),3.06(s,6H),2.79~2.55(m,2H)。
3-(4-N, N-diethylbenzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (39): Mp 216 ~ 217 DEG C; EIMS m/z:374 [M +]; 1h NMR(400MHz, CDCl 3, δ): 10.25(s, 1H), 8.70(s, 1H) and, 7.12(dd, 2H), 6.98 ~ 6.93(m, 2H), 6.73(dd, 2H), 6.69(d, 1H), 5.52(s, 1H) and, 5.37(s, 2H), 3.41(q, 4H), 3.10(s, 2H), 2.77 ~ 2.49(m, 2H), 1.15(t, 6H).
3-(4-cyanobenzyls)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (40):
Mp 158~160℃;EIMS m/z:328[M +]; 1H NMR(400MHz,CDCl 3,δ):10.31(s,1H),8.72(s,1H),7.59(dd,2H),7.47(dd,2H),6.97~6.93(m,2H),6.71(d,1H),5.60(s,1H),5.33(s,2H),3.12(s,2H),2.74~2.53(m,2H)。
3-(4-methyl-benzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (41):
Mp 146~147℃;EIMS m/z:317[M +]; 1H NMR(400MHz,CDCl 3,δ):10.41(s,1H),8.76(s,1H),7.18(dd,2H),7.00~6.93(m,4H),6.70(d,1H),5.57(s,1H),5.36(s,2H),3.20(s,2H),2.80~2.65(m,2H),2.34(s,3H)。
3-(4-Ethylbenzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (42):
Mp 165~166℃;EIMS m/z:331[M +]; 1H NMR(400MHz,CDCl 3,δ):10.22(s,1H),8.25(s,1H),7.05(dd,4H),6.98~6.92(m,2H),6.72(d,1H),5.61(s,1H),5.20(s,2H),3.11(s,2H),2.78~2.59(m,2H),2.60(q,2H),1.25(t,3H)。
3-(3-luorobenzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (43):
Mp 152~154℃;EIMS m/z:321[M +]; 1H NMR(400MHz,CDCl 3,δ):10.18(s,1H),8.42(s,1H),7.41~7.36(m,1H),7.10~7.05(m,2H),6.97~6.92(m,2H),6.83(dd,1H),6.70(d,1H),5.65(s,1H),5.31(s,2H),3.14(s,2H),2.75~2.51(m,2H)。
3-(3-chlorobenzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (44):
Mp 180~181℃;EIMS m/z:337[M +]; 1H NMR(400MHz,CDCl 3,δ):10.28(s,1H),8.68(s,1H),7.49(dd,1H),7.36~7.29(m,2H),7.23~7.16(m,1H),6.97~6.93(m,2H),6.71(d,1H),5.62(s,1H),5.36(s,2H),3.11(s,2H),2.66~2.53(m,2H)。
3-(3-bromobenzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (45):
Mp 221~223℃;EIMS m/z:381[M +]; 1H NMR(400MHz,CDCl 3,δ):10.44(s,1H),8.91(s,1H),7.45~7.41(m,2H),7.30~7.22(m,2H),6.99~6.93(m,2H),6.73(d,1H),5.59(s,1H),5.33(s,2H),3.15(s,2H),2.64~2.50(m,2H)。
3-(3-methoxy-benzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (46):
Mp 173~174℃;EIMS m/z:333[M +]; 1H NMR(400MHz,CDCl 3,δ):10.20(s,1H),8.79(s,1H),7.29(t,1H),7.07(dd,1H),6.98~6.92(m,2H),,6.85~6.80(m,2H),6.70(d,1H),5.61(s,1H),5.35(s,2H),3.83(s,3H),3.12(s,2H),2.67~2.53(m,2H)。
3-(3-ethoxy benzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (47):
Mp 194~196℃;EIMS m/z:347[M +]; 1H NMR(400MHz,CDCl 3,δ):10.33(s,1H),8.82(s,1H),7.29(t,1H),7.07(dd,1H),6.98~6.92(m,2H),6.86~6.80(m,2H),6.72(d,1H),5.57(s,1H),5.38(s,2H),4.09(q,2H),2.98(s,2H),2.69~2.57(m,2H),1.32(t,3H)。
3-(3-nitrobenzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (48):
Mp 196~198℃;EIMS m/z:348[M +]; 1H NMR(400MHz,CDCl 3,δ):10.29(s,1H),8.74(s,1H),8.20~8.06(m,2H),7.70~7.64(m,2H),6.98~6.92(m,2H),6.70(d,1H),5.61(s,1H),5.34(s,2H),3.12(s,2H),2.65~2.53(m,2H)。
3-(3-N, N-dimethyl benzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (49):
Mp 192~193℃;EIMS m/z:346[M +]; 1H NMR(400MHz,CDCl 3,δ):10.40(s,1H),8.91(s,1H),7.22(t,1H),6.98~6.93(m,2H),6.78~6.61(m,4H),5.59(s,1H),5.37(s,2H),3.10(s,2H),3.06(s,6H),2.69~2.57(m,2H)。
3-(3-N, N-diethylbenzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (50):
Mp 217~218℃;EIMS m/z:374[M +]; 1H NMR(400MHz,CDCl 3,δ):10.44(s,1H),8.93(s,1H),7.23~7.06(m,2H),6.98~6.91(m,2H),6.79~6.73(m,1H),6.71(d,1H),6.67~6.61(m,1H),5.54(s,1H),5.33(s,2H),3.41(q,4H),3.13(s,2H),2.66~2.52(m,2H),1.15(t,6H)。
3-(3-cyanobenzyls)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (51):
Mp 155~156℃;EIMS m/z:328[M +]; 1H NMR(400MHz,CDCl 3,δ):10.38(s,1H),8.87(s,1H),8.01(dd,1H),7.78~7.73(m,1H),7.59~7.55(m,1H),7.10(t,1H),6.98~6.93(m,2H),6.70(d,1H),5.60(s,1H),5.36(s,2H),3.10(s,2H),2.66~2.54(m,2H)。
3-(3-methyl-benzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (52):
Mp 145~147℃;EIMS m/z:317[M +]; 1H NMR(400MHz,CDCl 3,δ):10.35(s,1H),8.77(s,1H),7.50(t,1H),7.18~6.92(m,5H),6.71(d,1H),5.56(s,1H),5.34(s,2H),3.12(s,2H),2.71~2.56(m,2H),2.34(s,3H)。
3-(3-Ethylbenzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (53):
Mp 165~166℃;EIMS m/z:331[M +]; 1H NMR(400MHz,CDCl 3,δ):10.28(s,1H),8.72(s,1H),7.57(t,1H),7.22(dd,1H),7.15~7.10(m,2H),6.98~6.93(m,2H),6.71(d,1H),5.60(s,1H),5.35(s,2H),3.14(s,2H),2.77~2.58(m,2H),2.60(q,2H),1.25(t,3H)。
3-(3,4-dihydroxy benzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (54):
Mp 177~178℃;EIMS m/z:335[M +]; 1H NMR(400MHz,CDCl 3,δ):10.22(s,1H),8.88(s,1H),6.98~6.93(m,2H),6.86(d,1H),6.74~6.65(m,3H),5.64(s,1H),5.35(s,4H),3.11(s,2H),2.68~2.49(m,2H)。
3-(3,4-dimethoxy-benzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (55):
Mp 203~204℃;EIMS m/z:363[M +]; 1H NMR(400MHz,CDCl 3,δ):10.41(s,1H),8.82(s,1H),5.57(s,1H),6.78~6.70(m,3H),6.96~6.82(m,3H),5.40(s,2H),3.83(s,6H),3.08(s,2H),2.70~2.59(m,2H)。
3-(3,4-diethoxy benzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (56):
Mp 226~227℃;EIMS m/z:391[M +]; 1H NMR(400MHz,CDCl 3,δ):10.22(s,1H),8.65(s,1H),6.96~6.82(m,3H),6.78~6.69(m,3H),5.61(s,1H),5.33(s,2H),4.10(q,4H),3.10(s,2H),2.67~2.52(m,2H),1.33(t,6H)。
3-(3,4-difluorobenzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (57):
Mp 183~185℃;EIMS m/z:339[M +]; 1H NMR(400MHz,CDCl 3,δ):10.12(s,1H),8.73(s,1H),7.17(s,1H),7.04(dd,1H),6.96~6.92(m,2H),6.81(d,1H),6.71(d,1H),5.58(s,1H),5.35(s,2H),3.05(s,2H),2.59~2.48(m,2H)。
3-(3,4-dichloro benzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (58):
Mp 215~216℃;EIMS m/z:371[M +]; 1H NMR(400MHz,CDCl 3,δ):10.28(s,1H),8.67(s,1H),7.68(d,1H),7.43(s,1H),7.11(dd,1H),6.98~6.92(m,2H),6.72(d,1H),5.66(s,1H),5.32(s,2H),3.12(s,2H),2.66~2.50(m,2H)。
3-(3,4-dibromo-benzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (59):
Mp 248~250℃;EIMS m/z:461[M +]; 1H NMR(400MHz,CDCl 3,δ):10.25(s,1H),8.64(s,1H),7.44(d,1H),7.33(s,1H),7.12(dd,1H),6.96~6.92(m,2H),6.70(d,1H),5.65(s,1H),5.37(s,2H),3.07(s,2H),2.70~2.53(m,2H)。
3-(3,4,5-trihydroxy-benzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (60):
Mp 199~201℃;EIMS m/z:351[M +]; 1H NMR(400MHz,CDCl 3,δ):10.34(s,1H),8.62(s,1H),6.96~6.92(m,2H),6.72(d,1H),6.42(s,2H),5.57(s,1H),5.35(s,5H),3.11(s,2H),2.66~2.51(m,2H)。
3-(3,4,5-trimethoxy benzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (61):
Mp 229~230℃;EIMS m/z:393[M+];1H NMR(400MHz,CDCl3,δ):10.22(s,1H),8.84(s,1H),6.97~6.92(m,2H),6.71(d,1H),6.33(s,2H),5.65(s,1H),5.30(s,2H),3.83(s,9H),3.15(s,2H),2.73~2.54(m,2H)。
3-(3,4,5-triethoxy benzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (62):
Mp 243~245℃;EIMS m/z:435[M +]; 1H NMR(400MHz,CDCl 3,δ):10.29(s,1H),8.59(s,1H),6.96~6.92(m,2H),6.69(d,1H),6.33(s,2H),5.58(s,1H),5.32(s,2H),4.10(q,6H),3.13(s,2H),2.69~2.52(m,2H),1.33(t,9H)。
3-(4-luorobenzyl)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (63):
Mp 135~136℃;EIMS m/z:305[M+];1H NMR(400MHz,CDCl3,δ):10.20(s,1H),8.68(s,1H),7.39(dd,2H),7.27(dd,2H),7.19(dd,2H),6.68(dd,2H),5.55(s,1H),5.35(s,1H),3.14(s,2H),2.66~2.48(m,2H)。
3-(4-chlorobenzyl)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (64):
Mp 152~154℃;EIMS m/z:321[M +]; 1H NMR(400MHz,CDCl 3,δ):10.31(s,1H),8.80(s,1H),7.44(dd,2H),7.37(dd,2H),7.23(dd,2H),6.66(dd,2H),5.62(s,1H),5.36(s,1H),3.09(s,2H),2.71~2.56(m,2H)。
3-(4-bromobenzyl)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (65):
Mp 208~210℃;EIMS m/z:365[M +]; 1H NMR(400MHz,CDCl 3,δ):10.39(s,1H),8.83(s,1H),7.92(dd,2H),7.39(dd,2H),7.18(dd,2H),6.68(dd,2H),5.67(s,1H),5.38(s,1H),3.15(s,2H),2.73~2.58(m,2H)。
3-(4-methoxy-benzyl)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (66):
Mp 143~144℃;EIMS m/z:317[M +]; 1H NMR(400MHz,CDCl 3,δ):10.22(s,1H),8.90(s,1H),7.36(dd,2H),7.17(dd,2H),6.94(dd,2H),6.65(dd,2H),5.62(s,1H),5.35(s,1H),3.83(s,3H),3.12(s,2H),2.69~2.55(m,2H)。
3-(4-ethoxy benzyl)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (67):
Mp 167~168℃;EIMS m/z:331[M +]; 1H NMR(400MHz,CDCl 3,δ):10.33(s,1H),8.85(s,1H),7.40(dd,2H),7.18(dd,2H),6.90(dd,2H),6.68(dd,2H),5.59(s,1H),5.35(s,1H),4.10(q,2H),3.09(s,2H),2.71~2.58(m,2H),1.32(t,3H)。
3-(4-nitrobenzyl)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (68):
Mp 173~175℃;EIMS m/z:332[M +]; 1H NMR(400MHz,CDCl 3,δ):10.43(s,1H),8.81(s,1H),8.21(dd,2H),7.55(dd,2H),7.38(dd,2H),6.68(dd,2H),5.60(s,1H),5.32(s,1H),3.12(s,2H),2.68~2.53(m,2H)。
3-(4-N, N-dimethoxy-benzyl)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (69):
Mp 160~161℃;EIMS m/z:330[M +]; 1H NMR(400MHz,CDCl 3,δ):10.47(s,1H),8.91(s,1H),7.39(dd,2H),7.11(dd,2H),6.71(dd,2H),6.66(dd,2H),5.58(s,1H),5.36(s,1H),3.15(s,2H),3.06(s,6H),2.72~2.56(m,2H)。
3-(4-N, N-diethoxy benzyl)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (70):
Mp 201~202℃;EIMS m/z:358[M +]; 1H NMR(400MHz,CDCl 3,δ):10.25(s,1H),8.73(s,1H),7.37(dd,2H),7.12(dd,2H),6.73(dd,2H),6.69(dd,2H),5.58(s,1H),5.34(s,1H),3.41(q,4H),3.12(s,2H),2.68~2.51(m,2H),1.15(t,6H)。
3-(4-cyanobenzyls)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (71):
Mp 140~141℃;EIMS m/z:312[M +]; 1H NMR(400MHz,CDCl 3,δ):10.39(s,1H),8.72(s,1H),7.59(dd,2H),7.47(dd,2H),7.39(dd,2H),6.68(dd,2H),5.60(s,1H),5.36(s,1H),3.14(s,2H),2.70~2.55(m,2H)。
3-(4-methyl-benzyl)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (72):
Mp 131~133℃;EIMS m/z:301[M +]; 1H NMR(400MHz,CDCl 3,δ)10.46(s,1H),8.79(s,1H),7.37(dd,2H),7.18(dd,2H),6.98(dd,2H),6.70(dd,2H),5.62(s,1H),5.38(s,1H),3.13(s,2H),2.72~2.57(m,2H),2.34(s,3H)。
3-(4-Ethylbenzyl)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (73):
Mp 142~143℃;EIMS m/z:315[M +]; 1H NMR(400MHz,CDCl 3,δ):10.28(s,1H),8.68(s,1H),7.40(dd,2H),7.05(dd,4H),6.67(dd,2H),5.59(s,1H),5.36(s,1H),3.12(s,2H),2.67~2.49(m,2H),2.32(q,2H),1.25(t,3H)。
3-(3-luorobenzyl)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (74):
Mp 178~179℃;EIMS m/z:305[M +]; 1H NMR(400MHz,CDCl 3,δ):10.33(s,1H),8.91(s,1H),7.39(dd,2H),7.35(t,1H),7.06(dd,2H),6.83(s,1H),6.69(dd,2H),5.54(s,1H),5.35(s,1H),3.15(s,2H),2.58~2.47(m,2H)。
3-(3-chlorobenzyl)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (75):
Mp 134~135℃;EIMS m/z:321[M +]; 1H NMR(400MHz,CDCl 3,δ):10.40(s,1H),8.73(s,1H),7.49(s,1H),7.38(dd,2H),7.35~7.32(m,2H),7.17(dd,1H),6.67(dd,2H),5.58(s,1H),5.33(s,1H),3.11(s,2H),2.66~2.50(m,2H)。
3-(3-bromobenzyl)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (76):
Mp 209~211℃;EIMS m/z:365[M +]; 1H NMR(400MHz,CDCl 3,δ):10.25(s,1H),8.77(s,1H),7.46~7.41(m,2H),7.39(dd,2H),7.30~7.21(m,2H),6.68(dd,2H),5.54(s,1H),5.35(s,1H),3.10(s,2H),2.64~2.51(m,2H)。
3-(3-methoxy-benzyl)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (77):
Mp 146~148℃;EIMS m/z:317[M +]; 1H NMR(400MHz,CDCl 3,δ):10.18(s,1H),8.67(s,1H),7.35(dd,2H),7.29(t,1H),7.07(s,1H),6.85(dd,1H),6.81(dd,1H),6.65(dd,2H),5.50(s,1H),5.32(s,1H),3.83(s,3H),3.09(s,2H),2.66~2.48(m,2H)。
3-(3-ethoxy benzyl)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (78):
Mp 167~169℃;EIMS m/z:331[M +]; 1H NMR(400MHz,CDCl 3,δ):10.36(s,1H),8.77(s,1H),7.38(dd,2H),7.30(t,1H),7.09(s,1H),6.86~6.80(m,2H),6.68(dd,2H),5.54(s,1H),5.35(s,1H),4.10(q,2H),3.14(s,2H),2.72~2.59(m,2H),1.32(t,3H)。
3-(3-nitrobenzyl)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (79):
Mp 173~175℃;EIMS m/z:332[M +]; 1H NMR(400MHz,CDCl 3,δ):10.21(s,1H),8.86(s,1H),8.18(s,1H),8.08(dd,1H),7.70~7.65(m,2H),7.39(dd,2H),6.65(dd,2H),5.57(s,1H),5.33(s,1H),3.15(s,2H),2.70~2.52(m,2H)。
3-(3-N, N-dimethyl benzyl)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl hydroxamic acid (80):
Mp 162~163℃;EIMS m/z:330[M +]; 1H NMR(400MHz,CDCl 3,δ):10.41(s,1H),8.70(s,1H),7.38(dd,2H),7.22(t,1H),6.76(dd,1H),6.74(s,1H),6.68(dd,2H),6.63(dd,1H),5.58(s,1H),5.35(s,1H),3.10(s,2H),3.06(s,6H),2.76~2.52(m,2H)。

Claims (3)

1. phenylbenzyl propionyl hydroxamic acid series compound, is characterized in that they have following general structure:
R in formula I 1, R 2, R 3, R 4, R 5, R 6and R 7definition take from following each group arbitrary group:
(1) R 4=R 5=R 7=H and R 1=R 2=R 3=OH, R 6=CH 3, C 2h 5, NO 2, CN, NMe 2, NEt 2, F, Cl, Br, OMe or OEt;
(2) R 4=R 6=R 7=H and R 1=R 2=R 3=OH, R 5=CH 3, C 2h 5, NO 2, CN, NMe 2, NEt 2, F, Cl, Br, OMe or OEt;
(3) R 4=R 7=H, R 1=R 2=R 3=OH and R 5=R 6=NO 2, CN, NH 2, NHR, NR 2, F, Cl, Br, OH, OMe or OEt;
(4) R 4=H, R 1=R 2=R 3=OH and R 5=R 6=R 7=OH, OMe or OEt;
(5) R 1=R 4=R 5=R 7=H and R 2=R 3=OH, R 6=CH 3, C 2h 5, NO 2, CN, NMe 2, NEt 2, F, Cl, Br, OMe or OEt;
(6) R 1=R 4=R 6=R 7=H and R 2=R 3=OH, R 5=CH 3, C 2h 5, NO 2, CN, NMe 2, NEt 2, F, Cl, Br, OMe or OEt;
(7) R 1=R 4=R 7=H, R 2=R 3=OH and R 5=R 6=OH, F, Cl, Br, OMe or OEt;
(8) R 1=R 4=H, R 2=R 3=OH and R 5=R 6=R 7=OH, OMe or OEt;
(9) R 1=R 2=R 4=R 5=R 7=H and R 3=OH, R 6=CH 3, C 2h 5, NO 2, CN, NMe 2, NEt 2, F, Cl, Br, OMe or OEt;
(10) R 1=R 2=R 4=R 6=R 7=H and R 3=OH, R 5=NO 2, NMe 2, F, Cl, Br, OMe or OEt.
2. prepare a method for phenylbenzyl propionyl hydroxamic acid series compound according to claim 1, it is characterized in that it comprises the following steps:
Step 1. gets 2-R 4-3-R 5-4R 6-5R 7substituted benzene Acetyl Chloride 98Min. (IV) is dissolved in anhydrous diethyl ether, adds 1-R 1-2-R 2-3-R 3substituted benzene (III) and catalyzer trifluoromethanesulfonic acid ketone, stir 10 ~ 25h, the ratio of amount of substance is: 2-R 4-3-R 5-4R 6-5R 7substituted benzene Acetyl Chloride 98Min. (IV): 1-R 1-2-R 2-3-R 3substituted benzene (III): trifluoromethanesulfonic acid ketone=1:(2 ~ 3): 2, control temperature of reaction between 60 ~ 120 DEG C, reaction 6 ~ 36h, cooling, pours in the beaker of trash ice and 30% concentrated hydrochloric acid, stirs 30min, static layering, the a small amount of benzene extracting twice of aqueous phase, merge organic phase, add dehydrated alcohol and 5% gac reflux 30 minutes, filtered while hot, add sherwood oil, cool to obtain white crystal, i.e. 2-R 1-3-R 2-4-R 3-2 '-R 4-3 '-R 5-4 '-R 6-5 '-R 7replace phenylbenzyl ketone (II);
Step 2. is by 2-R 1-3-R 2-4-R 3-2 '-R 4-3 '-R 5-4 '-R 6-5 '-R 7replace phenylbenzyl ketone (II), Zn, NH 4cl, ethyl bromoacetate are ground evenly together, the ratio of amount of substance: 2-R 1-3-R 2-4-R 3-2 '-R 4-3 '-R 5-4 '-R 6-5 '-R 7replace phenylbenzyl ketone (II): Zn:NH 4cl: ethyl bromoacetate=1:12:8:(1 ~ 5), room temperature pours saturated NH into after leaving standstill 7 ~ 24h 4cl solution, AcOEt extracts, anhydrous MgSO 4drying, boils off solvent, and with silica column purification, eluent volume ratio: AcOEt: sherwood oil=2:1 ~ 1:9, obtains 3-(2 '-R 4-3 '-R 5-4 '-R 6-5 '-R 7substituted benzyl)-3-(2-R 1-3-R 2-4-R 3substituted-phenyl)-3-hydroxypropionate (V):
Step 3. is by 3-(2 '-R 4-3 '-R 5-4 '-R 6-5 '-R 7substituted benzyl)-3-(2-R 1-3-R 2-4-R 3substituted-phenyl)-3-hydroxypropionate (V) is dissolved in anhydrous methanol, and the consumption of methyl alcohol is every gram of 3-(2 '-R 4-3 '-R 5-4 '-R 6-5 '-R 7substituted benzyl)-3-(2-R 1-3-R 2-4-R 3substituted-phenyl)-3-hydroxypropionate (V) anhydrous methanol 8 ~ 20mL, add NH 2after OHHCl, sodium methylate, stir 10 ~ 35h, the ratio of amount of substance is: 3-(2 '-R 4-3 '-R 5-4 '-R 6-5 '-R 7substituted benzyl)-3-(2-R 1-3-R 2-4-R 3substituted-phenyl)-3 hydroxypropionate (V): NH 2oHHCl:CH 3oNa=1:4:(2 ~ 8), boil off methyl alcohol, then add deionized water, with AcOEt extraction, merge organic layer, MgSO 4drying, boils off solvent, and with silica column purification, eluent volume ratio: AcOEt: sherwood oil=3:1 ~ 1:7, obtains 3-(2 '-R 4-3 '-R 5-4 '-R 6-5 '-R 7substituted benzyl)-3-(2-R 1-3-R 2-4-R 3substituted-phenyl)-3-hydroxyl propionyl hydroxamic acid (I), wherein said R 1, R 2, R 3, R 4, R 5, R 6and R 7definition identical with definition according to claim 1.
3. phenylbenzyl propionyl hydroxamic acid series compound according to claim 1 is preparing the application in gastritis, stomach ulcer or anti-lithangiuria medicine.
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