Troxerutin amide derivative as well as synthetic method and use thereof
A technology of troxerutinamide and rubutinamide is applied in the field of medicinal chemistry and achieves the effects of easy post-processing, mild reaction conditions and simple reaction process
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Embodiment 1-1
[0034] Weigh 140mg (0.18mmol) of troxerutin, 138mg (0.75mmol) of divinyl glutarate, and 10mL of pyridine in a 50mL Erlenmeyer flask, add 120mg of subtilisin, and put it in a constant temperature shaker at 50°C Reaction, speed 250rev·min -1 . After 72 hours of reaction, the enzyme was removed by filtration, and pyridine was distilled off under reduced pressure. Separation and purification by column chromatography, the eluent was ethyl acetate / methanol / water (15:3.6:0.5V / V), to obtain 103 mg (0.12 mmol) of troxerutin glutaryl vinyl ester as a yellow solid, with a yield of 65%.
[0035] 1 H-NMR (DMSO-d 6 ), δ(ppm): 12.49(s,1H,OH 5 ),7.85(s,1H,H 2’ ),7.74(d,1H,J=7.2Hz,H 6’ ),7.22(dd,1H,J=6.4Hz,J=14.1Hz,-OCH=),7.17(d,1H,J=6.6Hz,H 5’ ),6.75(s,1H,H 8 ),6.38(s,1H,H 6 ),5.35(d,1H,J=7.6Hz,H 1 ”),4.89(m,1H,OCH=CH 2 ),4.65(m,1H,OCH=CH 2 ),4.47(m,3H,2H of A acylated,1H of B acylated),4.32(m,1H,H 1 "'),4.26(m,1H,H of B acylated),4.12-4.05(m,4H,H of A),3.75(m,4H,H of B),3.71-3.0...
Embodiment 1-2
[0039] Add 95 mg (0.11 mmol) of troxerutin glutaryl vinyl ester, 153 mg (1.10 mmol) of 4-fluorophenethylamine, [OMIM] Br (1-n-octyl-3-methylimidazole) into a 50 mL Erlenmeyer flask Bromide) 10mL, oscillating in an air bath at 50°C at 150rpm at a constant temperature, and reacted for 24h. Extracted with ethyl acetate, concentrated under reduced pressure, separated and purified by column chromatography, the eluent was ethyl acetate / methanol / water (20 / 3 / 1, v / v), to obtain 4-fluorophenethylamine Rutinamide derivatives. Pale yellow solid 91.4 mg, yield 85%.
[0040] yellow powder,R f =0.3, 1 H NMR (400MHz, DMSO-d 6 +D 2 O,δppm):7.82-7.83(m,1H,H 2’ ),7.66-7.73(m,1H,H 6’ ),7.00-7.19(m,5H,1H of H 5’ ,5H of phenethylamine),6.66-6.68(m,1H,H 8 ),6.35-6.36(m,1H,H 6 ),5.32-5.37(m,1H,H 1 ”),4.35-4.38(m,3H,2H of Aacylated,1H of B acylated),4.24-4.28(m,2H,1H of H 1 " ’ ,1H of B acylated),4.02-4.08(m,4H,H of A),3.67-3.76(m,4H,H of B),3.01-3.76(m,12H,10H ofrhamnoglucosyl,2H of phen...
Embodiment 1-3
[0042] Weigh 140mg (0.18mmol) of troxerutin, 180mg (0.75mmol) of divinyl azelate, and 10mL of pyridine in a 50mL Erlenmeyer flask, add 175mg of subtilisin, and put it in a constant temperature shaker at 60°C Reaction, speed 250rev·min -1 . After 148 hours of reaction, the enzyme was removed by filtration, and pyridine was distilled off under reduced pressure. Post-processing is the same as above. 101 mg (0.10 mmol) of troxerutin vinyl azelate was obtained as a yellow solid with a yield of 57%.
[0043] 1 H-NMR (DMSO-d 6 ),δ(ppm):12.50(s,1H,OH 5 ),7.85(s,1H,H 2’ ),7.75(d,1H,J=8.4Hz,H 6’),7.21(dd,1H,J=6.0Hz,J=13.8Hz,-OCH=),7.15(d,1H,J=8.4Hz,H 5’ ),6.75(s,1H,H 8 ),6.38(s,1H,H 6 ),5.41(d,1H,J=10.0Hz,H 1” ),4.91(m,1H,OCH=CH 2 ),4.61(m,1H,OCH=CH 2 ),4.41(m,3H,2H of A acylated,1H of B acylated),4.32(m,1H,H 1”’ ),4.26(m,1H,H of B acylated),4.12-4.06(m,4H,H of A),3.75(m,4H,H of B),3.71-3.00(10H,Hof rhamnoglucosyl),2.39( t,2H,J=7.2Hz,-CH 2 -COOCH=CH 2 ),2.34(t,2H,J=7.2H...
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