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)。