CN102976974B - Phenyl benzyl propionyl-N-methyloxyxamic urease inhibitor and synthesis and use thereof - Google Patents

Phenyl benzyl propionyl-N-methyloxyxamic urease inhibitor and synthesis and use thereof Download PDF

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CN102976974B
CN102976974B CN201210590545.3A CN201210590545A CN102976974B CN 102976974 B CN102976974 B CN 102976974B CN 201210590545 A CN201210590545 A CN 201210590545A CN 102976974 B CN102976974 B CN 102976974B
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hydroxamic acid
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CN102976974A (en
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肖竹平
黄莘
王旭东
杨盼
向银萍
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Hangzhou Sangjiefei Technology Co., Ltd.
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Jishou University
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Abstract

The invention discloses a phenyl benzyl propionyl-N-methyloxyxamic compound of which the structural general formula is figured as follows. The compound has a good inhibition effect on urease, and can be used for preparing a medicament, such as an anti-gastritis medicament, an anti-gastric ulcer medicament and an anti-lithangiuria medicament. The invention further discloses a method for preparing the compound.

Description

Phenyl benzyl propionyl-N-methyloxurease urease inhibitor and synthesis thereof and purposes
Technical field
The present invention relates to the method for making of a class Phenyl benzyl propionyl-N-methyloxurease urease inhibitor and they are preparing 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-N-methyl 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-N-methyl hydroxamic acid series compound is provided.
Technical scheme of the present invention is as follows:
One class phenylbenzyl propionyl-N-methyl hydroxamic acid 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 phenylbenzyl propionyl-N-methyl hydroxamic acid series compound, it comprises the following steps:
Step 1. gets 2-R 4-3- r5-4R 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 a certain amount of 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, merges organic phase.Add dehydrated alcohol and 5% gac reflux 30 minutes, filtered while hot, adds sherwood oil, cools 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, adds CH 3after NHOHHCl, 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): CH 3nHOHHCl:CH 3oNa=1:4:(2 ~ 8), boil off methyl alcohol, 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-N-methyl 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-N-methyl 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-N-methyl hydroxamic acid (32)
Get 0.7mL in fluorophenylacetyl chloride dissolving and 20mL anhydrous diethyl ether, add 1.1g1 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 738mg3 again, 4-dihydroxyl-4 '-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 CH under stirring 3nHOHHCl334mg, CH 3oNa378mg, stirring at room temperature 17h, 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=1:2, obtains white solid 3-(4-luorobenzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (32) 245mg, productive rate 73%.Fusing point: 153 ~ 155 DEG C.EIMS?m/z:335[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.24(s,1H),8.75(s,1H),7.29(dd,2H),7.19(dd,2H),6.98~6.91(m,2H),6.71(d,1H),5.57(s,1H),5.35(s,2H),3.27(s,3H),3.16(s,2H),2.61~2.47(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-N-methyl hydroxamic acid series compound 1 ~ 80 listed by table 1.
Each R group of phenylbenzyl propionyl-N-methyl 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 L Jack 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-N-methyl 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-N-methyl 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 33 28 124 55 342
2 63 29 447 56 147
2 451 30 12 57 349
4 194 31 66 58 62
5 152 32 71 59 513
6 68 33 3.0 60 8.5
7 184 34 131 61 179
8 143 35 61 62 173
9 584 36 59 63 526
10 278 37 157 64 45
11 83 38 259 65 78
12 346 39 2.2 66 0.2
13 57 40 125 67 65
14 65 41 217 68 206
15 0.1 42 143 69 295
16 285 43 126 70 4.8
17 142 44 31 71 321
18 1.2 45 71 72 138
19 41 46 94 73 138
20 82 47 346 74 59
21 125 48 122 75 137
22 1.1 49 0.7 76 63
23 339 50 8.2 77 310
24 113 51 0.3 78 325
25 34 52 97 79 212
26 49 53 196 80 62
27 85 54 41 N-acetylhydroxylamine 17
Result shows, compound 15,18,22,33,39,32,49,51,60,66,70 pairs of sword bean ureases have the restraining effect shown, and restraining effect comparatively N-acetylhydroxylamine is higher, active best 170 times that reach N-acetylhydroxylamine.
The above embodiment of the present invention shows: in the phenylbenzyl propionyl-N-methyl 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 18,39,51,66 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-N-methyl hydroxamic acid (1):
Mp181~183℃;EIMS?m/z:351[M +]; 1H?NMR(400MHz,CDCl3,δ):10.36(s,1H),8.82(s,1H),7.25(dd,2H),7.16(dd,2H),6.40(d,1H),6.23(d,1H),5.61(s,1H),5.36(s,3H),3.32(s,3H),3.11(s,2H),2.72~2.55(m,2H)。
3-(4-chlorobenzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (2):
Mp203~205℃;EIMS?m/z:367[M+];1H?NMR(400MHz,CDCl3,δ):10.42(s,1H),8.83(s,1H),7.44(dd,2H),7.26(dd,2H),6.42(d,1H),6.24(d,1H),5.61(s,1H),5.33(s,3H),3.32(s,3H),3.14(s,2H),2.75~2.57(m,2H)。
3-(4-bromobenzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (3):
Mp233~235℃;EIMS?m/z:411[M+];1H?NMR(400MHz,CDCl3,δ):10.39(s,1H),8.73(s,1H),7.88(dd,2H),7.18(dd,2H),6.37(d,1H),6.26(d,1H),562(s,1H),536(s,3H),329(s,3H),312(s,2H),277~264(m,2H)。
3-(4-methoxy-benzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (4):
Mp199~201℃;EIMS?m/z:363[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.43(s,1H),8.87(s,1H),7.13(dd,2H),6.94(dd,2H),6.37(d,1H),6.27(d,1H),5.58(s,1H),5.32(s,3H),3.83(s,3H),3.30(s,3H),3.11(s,2H),2.70~2.58(m,2H)。
3-(4-ethoxy benzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (5):
Mp202~204℃;EIMS?m/z:377[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.35(s,1H),8.76(s,1H),7.18(dd,2H),6.96(dd,2H),6.43(d,1H),6.28(d,1H),5.67(s,1H),5.35(s,3H),4.10~4.05(m,2H),3.32(s,3H),3.12(s,2H),2.70~2.54(m,2H),1.02(t,3H)。
3-(4-nitrobenzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (6):
Mp199~201℃;EIMS?m/z:378[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.36(s,1H),8.65(s,1H),8.21(dd,2H),7.51(dd,2H),6.40(d,1H),6.22(d,1H),5.52(s,1H),5.31(s,3H),3.28(s,3H),3.10(s,2H),2.69~2.58(m,2H)。
3-(4-N, N-dimethylaminobenzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (7):
Mp207~209℃;EIMS?m/z:376[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.40(s,1H),8.81(s,1H),7.13(dd,2H),6.67(dd,2H),6.48(d,1H),6.21(d,1H),5.67(s,1H),5.30(s,3H),3.32(s,3H),3.11(s,2H),3.02(s,6H),2.60~2.49(m,2H)。
3-(4-N, N-diethylin benzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (8):
Mp228~230℃;EIMS?m/z:404[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.32(s,1H),8.71(s,1H),7.12(dd,2H),6.73(dd,2H),6.39(d,1H),6.24(d,1H),5.54(s,1H),5.42(s,3H),3.43~3.38(m,4H),3.30(s,3H),3.10(s,2H),2.58~2.50(m,2H),1.05(t,6H)。
3-(4-cyanobenzyls)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (9):
Mp189~190℃;EIMS?m/z:358[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.44(s,1H),8.70(s,1H),7.61(dd,2H),7.47(dd,2H),6.40(d,1H),6.28(d,1H),5.64(s,1H),5.33(s,3H),3.33(s,3H),3.12(s,2H),2.75~2.58(m,2H)。
3-(4-methyl-benzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (10):
Mp175~176℃;EIMS?m/z:347[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.02(s,1H),8.68(s,1H),7.22(dd,2H),6.98(dd,2H),6.43(d,1H),6.31(d,1H),5.61(s,1H),5.35(s,3H),3.27(s,3H),3.14(s,2H),2.61~2.47(m,2H),2.31(s,3H)。
3-(4-Ethylbenzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (11):
Mp197~199℃;EIMS?m/z:361[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.45(s,1H),8.66(s,1H),7.05(dd,4H),6.56(d,1H),6.31(d,1H),5.70(s,1H),5.40(s,3H),3.29(s,3H),3.12(s,2H),2.68~2.49(m,2H),2.62~2.56(m,2H),1.05(t,3H)。
3-(3-luorobenzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (12):
Mp182~184℃;EIMS?m/z:351[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.36(s,1H),8.69(s,1H),7.41~7.36(m,1H),7.09~7.03(m,2H),6.85(dd,1H),6.40(d,1H),6.32(d,1H),5.38(s,3H),5.27(s,1H),3.31(s,3H),3.22(s,2H),2.60~2.47(m,2H)。
3-(3-chlorobenzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (13):
Mp200~201℃;EIMS?m/z:367[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.38(s,1H),8.74(s,1H),7.52(s,1H),7.35~7.24(m,2H),7.20~7.13(m,1H),6.43(d,1H),6.27(d,1H),5.70(s,1H),5.35(s,3H),3.32(s,3H),3.11(s,2H),2.70~2.55(m,2H)。
3-(3-bromobenzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (14):
Mp232~234℃;EIMS?m/z:411[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.39(s,1H),8.78(s,1H),7.42~7.37(m,2H),7.30~7.23(m,2H),6.42(d,1H),6.25(d,1H),5.61(s,1H),5.38(s,3H),3.32(s,3H),3.28(s,2H),2.72~2.57(m,2H)。
3-(3-methoxy-benzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (15):
Mp198~199℃;EIMS?m/z:363[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.29(s,1H),8.59(s,1H),7.31(t,1H),7.05(s,1H),6.89~6.80(m,2H),6.40(d,1H),6.24(d,1H),5.67(s,1H),5.37(s,3H),3.83(s,3H),3.32(s,3H),3.10(s,2H),2.73~2.61(m,2H)。
3-(3-ethoxy benzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (16):
Mp204~206℃;EIMS?m/z:377[M +];H?NMR(400MHz,CDCl 3,δ):10.45(s,1H),876(s,1H),725(t,1H),707(s,1H),687~680(m,2H),636(d,1H),629(d,1H),5.74(s,1H),5.33(s,3H),4.06(q,2H),3.31(s,3H),3.09(s,2H),2.78~2.62(m,2H),1.02(t,3H)。
3-(3-nitrobenzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (17):
Mp207~208℃;EIMS?m/z:378[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.46(s,1H),8.74(s,1H),8.20~8.08(m,2H),7.70~7.60(m,2H),6.45(d,1H),6.22(d,1H),5.66(s,1H),5.29(s,3H),3.34(s,3H),3.11(s,2H),2.77~2.61(m,2H)。
3-(3-N, N-dimethylaminobenzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (18):
Mp206~208℃;EIMS?m/z:376[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.34(s,1H),8.73(s,1H),7.22(t,1H),6.78~6.71(m,2H),6.67~6.60(m,1H),6.35(d,1H),6.28(d,1H),5.50(s,1H),5.32(s,3H),3.32(s,3H),3.10(s,2H),3.03(s,6H),2.80~2.62(m,2H)。
3-(3-N, N-diethylin benzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (19):
Mp228~230℃;EIMS?m/z:404[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.39(s,1H),8.75(s,1H),7.25(t,1H),7.10~7.05(m,1H),6.79(s,1H),6.64~6.61(m,1H),6.48(d,1H),6.30(d,1H),5.65(s,1H),5.32(s,3H),3.45(q,4H),3.31(s,3H),3.08(s,2H),2.62~2.49(m,2H),1.05(t,6H)。
3-(3-cyanobenzyls)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (20):
Mp188~190℃;EIMS?m/z:358[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.38(s,1H),8.79(s,1H),8.01(s,1H),7.78~7.70(m,1H),7.59~7.53(m,1H),7.10(t,1H),6.36(d,1H),6.28(d,1H),5.60(s,1H),5.35(s,3H),3.33(s,3H),3.12(s,2H),2.76~2.64(m,2H)。
3-(3-methyl-benzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (21):
Mp173~175℃;EIMS?m/z:347[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.26(s,1H),8.68(s,1H),7.50(t,1H),7.18(s,1H),7.10~7.02(m,2H),6.38(d,1H),6.28(d,1H),5.54(s,1H),5.32(s,3H),3.30(s,3H),2.98(s,2H),2.74~2.56(m,2H),2.30(s,3H)。
3-(3-Ethylbenzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (22):
Mp198~199℃;EIMS?m/z:361[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.34(s,1H),8.78(s,1H),5.61(s,1H),6.43(d,1H),6.24(d,1H),5.33(s,3H),7.12~7.07(m,2H),7.24(s,1H),7.52(t,1H),3.32(s,3H),3.11(s,2H),2.60(q,2H),2.78~2.65(m,2H),1.05(t,3H)。
3-(3,4-dihydroxy benzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (23):
Mp204~206℃;EIMS?m/z:365[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.26(s,1H),8.58(s,1H),6.89(d,1H),6.74~6.64(m,2H),6.47(d,1H),6.26(d,1H),5.63(s,1H),5.40(s,5H),3.31(s,3H),3.18(s,2H),2.69~2.48(m,2H)。
3-(3,4-dimethoxy-benzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (24):
Mp220~222℃;EIMS?m/z:393[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.19(s,1H),8.87(s,1H),6.80~6.73(m,3H),6.43(d,1H),6.28(d,1H),5.54(s,1H),5.32(s,3H),3.83(s,6H),3.33(s,3H),3.11(s,2H),2.77~2.64(m,2H)。
3-(3,4-diethoxy benzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (25):
Mp236~238℃;EIMS?m/z:421[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.27(s,1H),8.55(s,1H),6.80~6.72(m,3H),6.39(d,1H),6.33(d,1H),5.51(s,1H),5.41(s,3H),4.05(q,4H),3.32(s,3H),3.11(s,2H),2.64~2.47(m,2H),1.02(t,6H)。
3-(3,4-difluorobenzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (26):
Mp202~204℃;EIMS?m/z:369[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.16(s,1H),8.67(s,1H),7.04(dd,1H),7.15(d,1H),6.78(d,1H),6.42(d,1H),6.28(d,1H),5.70(s,1H),5.32(s,3H),3.32(s,3H),3.15(s,2H),2.61~2.47(m,2H)。
3-(3,4-dichloro benzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (27):
Mp226~227℃;EIMS?m/z:401[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.33(s,1H),8.78(s,1H),7.68(d,1H),7.45(d,1H),7.15(dd,1H),6.40(d,1H),6.28(d,1H),5.72(s,1H),5.35(s,3H),3.34(s,3H),3.22(s,2H),2.65~2.51(m,2H)。
3-(3,4-dibromo-benzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (28):
Mp254~256℃;EIMS?m/z:491[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.45(s,1H),8.76(s,1H),7.42(d,1H),7.33(d,1H),7.12(dd,1H),6.43(d,1H),6.23(d,1H),5.58(s,3H),5.52(s,1H),3.30(s,3H),2.97(s,2H),2.76~2.50(m,2H)。
3-(3,4,5-trihydroxy-benzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (29):
Mp215~217℃;EIMS?m/z:381[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.05(s,1H),8.56(s,1H),6.42(d,2H),6.33(d,1H),6.26(d,1H),5.62(s,1H),5.34(s,6H),330(s,3H),313(s,2H),264~252(m,2H)。
3-(3,4,5-trimethoxy benzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (30):
Mp235~237℃;EIMS?m/z:423[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.26(s,1H),8.92(s,1H),6.43(d,1H),6.31(d,2H),6.24(d,1H),5.59(s,1H),5.34(s,3H),3.85(s,9H),3.31(s,3H),3.03(s,2H),2.70~2.59(m,2H)。
3-(3,4,5-triethoxy benzyl)-3-(2,3,4-trihydroxy-phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (31):
Mp249~251℃;EIMS?m/z:465[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.25(s,1H),8.87(s,1H),6.37(d,1H),6.33(d,2H),6.24(d,1H),5.57(s,1H),5.33(s,3H),4.09(q,6H),3.27(s,3H),3.10(s,2H),2.64~2.51(m,2H),1.02(t,9H)。
3-(4-luorobenzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (32):
Mp155~157℃。EIMS?m/z:349[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.27(s,1H),8.78(s,1H),7.29(dd,2H),7.16(dd,2H),6.98~6.90(m,2H),6.71(d,1H),5.57(s,1H),5.32(s,2H),3.24(s,3H),3.16(s,2H),2.58~2.47(m,2H)。
3-(4-chlorobenzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (33):
Mp183~185℃;EIMS?m/z:351[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.54(s,1H),8.66(s,1H),5.60(s,1H),6.96~6.89(m,2H),6.72(d,1H),5.38(s,2H),7.40(dd,2H),7.19(dd,2H),3.32(s,3H),3.02(s,2H),2.77~2.63(m,2H)。
3-(4-bromobenzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (34):
Mp224~226℃;EIMS?m/z:395[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.39(s,1H),8.58(s,1H),7.94(dd,2H),7.20(dd,2H),6.97~6.92(m,2H),6.71(d,1H),5.67(s,1H),5.34(s,2H),3.34(s,3H),3.14(s,2H),2.52~2.43(m,2H)。
3-(4-methoxy-benzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (35):
Mp176~177℃;EIMS?m/z:347[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.35(s,1H),8.66(s,1H),7.15(dd,2H),6.97~6.90(m,2H),6.94(dd,2H),6.78(d,1H),5.50(s,1H),5.32(s,2H),3.32(s,3H),3.02(s,2H),2.55~2.49(m,2H)。
3-(4-ethoxy benzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (36):
Mp195~197℃;EIMS?m/z:361[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.404(s,1H),8.65(s,1H),7.16(dd,2H),6.99~6.92(m,2H),6.93(dd,2H),6.70(d,1H),5.56(s,1H)5.30(s,2H),4.07(q,2H),3.31(s,3H),3.11(s,2H),2.62~2.52(m,2H),1.02(t,3H)。
3-(4-nitrobenzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (37):
Mp198~200℃;EIMS?m/z:362[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.29(s,1H),8.67(s,1H),8.23(dd,2H),7.57(dd,2H),6.97~6.93(m,2H),6.73(d,1H),5.52(s,1H),5.32(s,2H),3.30(s,3H),3.14(s,2H),2.70~2.53(m,2H)。
3-(4-N, N-dimethyl benzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (38):
Mp193~194℃;EIMS?m/z:360[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.38(s,1H),8.76(s,1H),7.11(dd,2H),6.99~6.93(m,2H),6.71(dd,2H),6.72(d,1H),5.57(s,1H),5.31(s,2H),3.29(s,3H),3.13(s,2H),3.02(s,6H),2.71~2.55(m,2H)。
3-(4-N, N-diethylbenzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (39):
Mp219~221℃;EIMS?m/z:388[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.28(s,1H),8.73(s,1H),7.12(dd,2H),6.98~6.91(m,2H),6.70(dd,2H),6.69(d,1H),5.51(s,1H),5.37(s,2H),3.43(q,4H),3.31(s,3H),3.10(s,2H),2.77~2.49(m,2H),1.05(t,6H)。
3-(4-cyanobenzyls)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (40):
Mp160~162℃;EIMS?m/z:342[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.35(s,1H),8.77(s,1H),7.59(dd,2H),7.42(dd,2H),6.97~6.91(m,2H),6.71(d,1H),5.62(s,1H),5.33(s,2H),3.30(s,3H),3.12(s,2H),2.71~2.53(m,2H)。
3-(4-methyl-benzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (41):
Mp148~149℃;EIMS?m/z:331[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.44(s,1H),8.76(s,1H),7.15(dd,2H),7.00~6.92(m,4H),6.70(d,1H),5.54(s,1H),5.36(s,2H),3.29(s,3H),3.20(s,2H),2.78~2.65(m,2H),2.14(s,3H)。
3-(4-Ethylbenzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (42):
Mp168~170℃;EIMS?m/z:334[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.25(s,1H),8.28(s,1H),7.05(dd,4H),6.96~6.90(m,2H),6.72(d,1H),5.63(s,1H),5.20(s,2H),3.30(s,3H),3.11(s,2H),2.71~2.59(m,2H),2.60(q,2H),1.05(t,3H)。
3-(3-luorobenzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (43):
Mp156~157℃;EIMS?m/z:335[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.16(s,1H),8.40(s,1H),7.41~7.36(m,1H),7.12~7.05(m,2H),6.97~6.91(m,2H),6.83(dd,1H),672(d,1H),565(s,1H),530(s,2H),332(s,3H),311(s,2H),2.71~2.51(m,2H)。
3-(3-chlorobenzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (44):
Mp182~184℃;EIMS?m/z:351[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.24(s,1H),8.65(s,1H),7.49(dd,1H),7.37~7.29(m,2H),7.23~7.15(m,1H),6.99~6.93(m,2H),6.71(d,1H),5.62(s,1H),5.39(s,2H),3.32(s,3H),3.14(s,2H),2.63~2.53(m,2H)。
3-(3-bromobenzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (45):
Mp223~225℃;EIMS?m/z:395[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.47(s,1H),8.94(s,1H),7.45~7.41(m,2H),7.30~7.21(m,2H),6.99~6.92(m,2H),6.77(d,1H),5.59(s,1H),5.33(s,2H),3.31(s,3H),3.15(s,2H),2.65~2.50(m,2H)。
3-(3-methoxy-benzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (46):
Mp176~178℃;EIMS?m/z:347[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.25(s,1H),8.79(s,1H),7.24(t,1H),7.07(dd,1H),6.99~6.92(m,2H),,6.85~6.77(m,2H),6.70(d,1H),5.61(s,1H),5.36(s,2H),3.83(s,3H),3.32(s,3H),3.13(s,2H),2.62~2.53(m,2H)。
3-(3-ethoxy benzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (47):
Mp195~197℃;EIMS?m/z:361[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.37(s,1H),8.82(s,1H),7.25(t,1H),7.07(dd,1H),6.98~6.90(m,2H),6.88~6.80(m,2H),6.72(d,1H),5.57(s,1H),5.34(s,2H),4.09(q,2H),3.28(s,3H),2.98(s,2H),2.65~2.57(m,2H),1.02(t,3H)。
3-(3-nitrobenzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (48):
Mp198~199℃;EIMS?m/z:362[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.26(s,1H),8.71(s,1H),8.20~8.06(m,2H),7.73~7.64(m,2H),6.98~6.90(m,2H),6.70(d,1H),5.63(s,1H),5.34(s,2H),3.33(s,3H),3.12(s,2H),2.65~2.56(m,2H)。
3-(3-N, N-dimethyl benzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (49):
Mp194~196℃;EIMS?m/z:360[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.43(s,1H),8.91(s,1H),7.26(t,1H),6.98~6.91(m,2H),6.78~6.61(m,4H),5.55(s,1H),537(s,2H),331(s,3H),314(s,2H),309(s,6H),269~257(m,2H)。
3-(3-N, N-diethylbenzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (50):
Mp219~220℃;EIMS?m/z:388[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.47(s,1H),8.93(s,1H),7.23~7.09(m,2H),6.98~6.90(m,2H),6.76~6.73(m,1H),6.74(d,1H),6.69~6.62(m,1H),5.54(s,1H),5.30(s,2H),3.41(q,4H),3.32(s,3H),3.10(s,2H),2.66~2.52(m,2H),1.05(t,6H)。
3-(3-cyanobenzyls)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (51):
Mp158~159℃;EIMS?m/z:342[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.35(s,1H),8.84(s,1H),8.01(dd,1H),7.79~7.73(m,1H),7.59~7.54(m,1H),7.10(t,1H),6.98~6.92(m,2H),6.72(d,1H),5.60(s,1H),5.34(s,2H),3.32(s,3H),3.09(s,2H),2.63~2.54(m,2H)。
3-(3-methyl-benzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (52):
Mp147~149℃;EIMS?m/z:331[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.38(s,1H),8.77(s,1H),7.53(t,1H),7.15~6.92(m,5H),6.71(d,1H),5.53(s,1H),5.31(s,2H),3.32(s,3H),3.09(s,2H),2.68~2.56(m,2H),2.24(s,3H)。
3-(3-Ethylbenzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (53):
Mp167~169℃;EIMS?m/z:345[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.29(s,1H),8.74(s,1H),7.57(t,1H),7.20(dd,1H),7.17~7.10(m,2H),6.98~6.93(m,2H),6.68(d,1H),5.60(s,1H),5.32(s,2H),3.34(s,3H),3.14(s,2H),2.72~2.58(m,2H),2.60(q,2H),1.05(t,3H)。
3-(3,4-dihydroxy benzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (54):
Mp178~179℃;EIMS?m/z:349[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.27(s,1H),8.83(s,1H),6.98~6.92(m,2H),6.86(d,1H),6.74~6.68(m,3H),5.64(s,1H),5.31(s,4H),3.32(s,3H),3.11(s,2H),2.60~2.49(m,2H)。
3-(3,4-dimethoxy-benzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (55):
Mp205~207℃;EIMS?m/z:377[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.46(s,1H),8.87(s,1H),5.57(s,1H),6.78~6.71(m,3H),6.96~6.82(m,3H),5.43(s,2H),3.83(s,6H),3.34(s,3H),3.06(s,2H),2.67~2.59(m,2H)。
3-(3,4-diethoxy benzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (56):
Mp228~229℃;EIMS?m/z:405[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.27(s,1H),865(s,1H),693~682(m,3H),677~669(m,3H),561(s,1H),536(s,2H),4.10(q,4H),3.28(s,3H),3.10(s,2H),2.65~2.52(m,2H),1.03(t,6H)。
3-(3,4-difluorobenzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (57):
Mp186~188℃;EIMS?m/z:353[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.12(s,1H),8.76(s,1H),7.17(s,1H),7.07(dd,1H),6.96~6.90(m,2H),6.81(d,1H),6.76(d,1H),5.58(s,1H),5.34(s,2H),3.32(s,3H),3.07(s,2H),2.55~2.48(m,2H)。
3-(3,4-dichloro benzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (58):
Mp218~219℃;EIMS?m/z:385[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.28(s,1H),8.69(s,1H),7.66(d,1H),7.45(s,1H),7.11(dd,1H),6.98~6.92(m,2H),6.76(d,1H),5.66(s,1H),5.30(s,2H),3.32(s,3H),3.10(s,2H),2.66~2.53(m,2H)。
3-(3,4-dibromo-benzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (59):
Mp249~250℃;EIMS?m/z:475[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.27(s,1H),8.64(s,1H),7.46(d,1H),7.33(s,1H),7.14(dd,1H),6.96~6.91(m,2H),6.70(d,1H),5.67(s,1H),5.39(s,2H),3.31(s,3H),3.07(s,2H),2.66~2.53(m,2H)。
3-(3,4,5-trihydroxy-benzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (60):
Mp201~203℃;EIMS?m/z:365[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.34(s,1H),8.64(s,1H),6.98~6.92(m,2H),6.72(d,1H),6.44(s,2H),5.57(s,1H),5.37(s,5H),3.32(s,3H),3.12(s,2H),2.61~2.51(m,2H)。
3-(3,4,5-trimethoxy benzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (61):
Mp231~233℃;EIMS?m/z:407[M+];1H?NMR(400MHz,CDCl3,δ):10.25(s,1H),8.84(s,1H),6.97~6.91(m,2H),6.71(d,1H),6.35(s,2H),5.65(s,1H),5.32(s,2H),3.83(s,9H),3.30(s,3H),3.17(s,2H),2.71~2.54(m,2H)。
3-(3,4,5-triethoxy benzyl)-3-(3,4-dihydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (62):
Mp245~247℃;EIMS?m/z:449[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.29(s,1H),8.57(s,1H),6.98~6.92(m,2H),6.69(d,1H),6.35(s,2H),5.58(s,1H),5.34(s,2H),4.10(q,6H),3.32(s,3H),3.13(s,2H),2.63~2.52(m,2H),1.03(t,9H)。
3-(4-luorobenzyl)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (63):
Mp137~139℃;EIMS?m/z:319[M+];1H?NMR(400MHz,CDCl3,δ):10.20(s,1H),8.64(s,1H),7.35(dd,2H),7.27(dd,2H),7.15(dd,2H),6.68(dd,2H),5.52(s,1H),5.35(s,1H),3.29(s,3H),3.14(s,2H),2.62~2.48(m,2H)。
3-(4-chlorobenzyl)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (64):
Mp156~158℃;EIMS?m/z:335[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.35(s,1H),8.80(s,1H),7.48(dd,2H),7.37(dd,2H),7.26(dd,2H),6.66(dd,2H),5.60(s,1H),5.36(s,1H),3.33(s,3H),3.09(s,2H),2.67~2.56(m,2H)。
3-(4-bromobenzyl)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (65):
Mp210~212℃;EIMS?m/z:379[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.39(s,1H),8.80(s,1H),7.92(dd,2H),7.36(dd,2H),7.18(dd,2H),6.65(dd,2H),5.67(s,1H),5.35(s,1H),3.32(s,3H),3.10(s,2H),2.71~2.58(m,2H)。
3-(4-methoxy-benzyl)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (66):
Mp145~146℃;EIMS?m/z:331[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.22(s,1H),8.93(s,1H),7.36(dd,2H),7.19(dd,2H),6.94(dd,2H),6.68(dd,2H),5.62(s,1H),5.38(s,1H),3.83(s,3H),3.34(s,3H),3.12(s,2H),2.67~2.55(m,2H)。
3-(4-ethoxy benzyl)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (67):
Mp169~171℃;EIMS?m/z:345[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.33(s,1H),8.81(s,1H),7.40(dd,2H),7.22(dd,2H),6.90(dd,2H),6.70(dd,2H),5.59(s,1H),5.37(s,1H),4.10(q,2H),3.30(s,3H),3.09(s,2H),2.68~2.58(m,2H),1.02(t,3H)。
3-(4-nitrobenzyl)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (68):
Mp175~177℃;EIMS?m/z:346[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.43(s,1H),8.85(s,1H),8.25(dd,2H),7.55(dd,2H),7.38(dd,2H),6.63(dd,2H),5.60(s,1H),5.31(s,1H),3.31(s,3H),3.09(s,2H),2.68~2.57(m,2H)。
3-(4-N, N-dimethoxy-benzyl)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (69):
Mp163~165℃;EIMS?m/z:344[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.45(s,1H),8.91(s,1H),7.37(dd,2H),7.11(dd,2H),6.73(dd,2H),6.66(dd,2H),5.56(s,1H),5.36(s,1H),3.33(s,3H),3.15(s,2H),3.09(s,6H),2.72~2.58(m,2H)。
3-(4-N, N-diethoxy benzyl)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (70):
Mp203~205℃;EIMS?m/z:372[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.25(s,1H),8.77(s,1H),7.37(dd,2H),7.16(dd,2H),6.73(dd,2H),6.65(dd,2H),5.58(s,1H),5.30(s,1H),3.41(q,4H),3.27(s,3H),3.12(s,2H),2.62~2.51(m,2H),1.05(t,6H)。
3-(4-cyanobenzyls)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (71):
Mp143~145℃;EIMS?m/z:326[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.35(s,1H),8.72(s,1H),7.55(dd,2H),7.47(dd,2H),7.35(dd,2H),6.68(dd,2H),5.64(s,1H),5.36(s,1H),3.34(s,3H),3.14(s,2H),2.70~2.57(m,2H)。
3-(4-methyl-benzyl)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (72):
Mp134~133℃5;EIMS?m/z:315[M +]; 1H?NMR(400MHz,CDCl 3,δ)10.47(s,1H),8.79(s,1H),7.38(dd,2H),7.18(dd,2H),6.99(dd,2H),6.70(dd,2H),5.63(s,1H),5.38(s,1H),3.31(s,3H),3.13(s,2H),2.70~2.57(m,2H),2.04(s,3H)。
3-(4-Ethylbenzyl)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (73):
Mp146~148℃;EIMS?m/z:329[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.28(s,1H),8.72(s,1H),7.40(dd,2H),7.07(dd,4H),6.67(dd,2H),5.61(s,1H),5.36(s,1H),3.34(s,3H),3.12(s,2H),2.62~2.49(m,2H),2.30(q,2H),1.05(t,3H)。
3-(3-luorobenzyl)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (74):
Mp179~181℃;EIMS?m/z:319[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.33(s,1H),8.914(s,1H),7.39(dd,2H),7.36(t,1H),7.06(dd,2H),6.87(s,1H),6.69(dd,2H),5.54(s,1H),5.31(s,1H),3.31(s,3H),3.11(s,2H),2.56~2.47(m,2H)。
3-(3-chlorobenzyl)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (75):
Mp137~139℃;EIMS?m/z:335[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.35(s,1H),8.76(s,1H),7.49(s,1H),7.39(dd,2H),7.35~7.32(m,2H),7.15(dd,1H),6.67(dd,2H),5.56(s,1H),5.33(s,1H),3.29(s,3H),3.12(s,2H),2.63~2.50(m,2H)。
3-(3-bromobenzyl)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (76):
Mp213~214℃;EIMS?m/z:379[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.27(s,1H),8.79(s,1H),7.46~7.41(m,2H),7.36(dd,2H),7.30~7.21(m,2H),6.65(dd,2H),5.54(s,1H),5.34(s,1H),3.32(s,3H),3.10(s,2H),2.61~2.51(m,2H)。
3-(3-methoxy-benzyl)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (77):
Mp148~149℃;EIMS?m/z:331[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.18(s,1H),8.69(s,1H),7.36(dd,2H),7.29(t,1H),7.09(s,1H),6.86(dd,1H),6.81(dd,1H),6.67(dd,2H),5.50(s,1H),5.31(s,1H),3.83(s,3H),3.30(s,3H),3.09(s,2H),2.62~2.48(m,2H)。
3-(3-ethoxy benzyl)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (78):
Mp169~171℃;EIMS?m/z:345[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.37(s,1H),8.79(s,1H),7.38(dd,2H),7.30(t,1H),7.06(s,1H),6.86~6.80(m,2H),6.69(dd,2H),5.54(s,1H),5.33(s,1H),4.10(q,2H),3.33(s,3H),3.12(s,2H),2.67~2.59(m,2H),1.02(t,3H)。
3-(3-nitrobenzyl)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (79):
Mp176~179℃;EIMS?m/z:346[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.21(s,1H),8.89(s,1H),8.18(s,1H),8.06(dd,1H),7.70~7.65(m,2H),7.35(dd,2H),6.62(dd,2H),5.57(s,1H),5.34(s,1H),3.32(s,3H),3.13(s,2H),2.66~2.52(m,2H)。
3-(3-N, N-dimethyl benzyl)-3-(4-hydroxy phenyl)-3-hydroxyl propionyl-N-methyl hydroxamic acid (80):
Mp165~166℃;EIMS?m/z:344[M +]; 1H?NMR(400MHz,CDCl 3,δ):10.44(s,1H),8.72(s,1H),7.38(dd,2H),7.26(t,1H),6.76(dd,1H),6.71(s,1H),6.68(dd,2H),6.67(dd,1H),5.58(s,1H),5.37(s,1H),3.32(s,3H),3.15(s,2H),3.06(s,6H),2.70~2.52(m,2H)。

Claims (3)

1. a class phenylbenzyl propionyl-N-methyl hydroxamic acid 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-N-methyl hydroxamic acid series compound according to claim 1, it is characterized in that: it is made up of the following step:
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 a certain amount of 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, adds CH 3after NHOHHCl, 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): CH 3nHOHHCl:CH 3oNa=1:4:(2 ~ 8), boil off methyl alcohol, 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-N-methyl 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-N-methyl hydroxamic acid series compound according to claim 1 is preparing the application in gastritis, stomach ulcer or anti-lithangiuria medicine.
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