Polyhydroxy stilbenes compound preparation and uses as drugs for suppressing SARS
A polyhydroxy stilbene and compound technology, which is applied in the preparation of polyhydroxy stilbene compounds and the use of SARS virus-inhibiting drugs, can solve the problems of not detecting that SARS-CoV has an effect and the like
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Embodiment 1
[0109] (E)-2-[2-(3,5-dihydroxyphenyl)vinyl]-3,5-dimethyl-4-hydroxypyridine; (also known as: (E)-4,6-dimethyl base-3',5,5'-trihydroxystilbene-2-nitrogen)
[0110] Synthesis of 3,5-dimethyl-4-methoxypyridine-2-methylphosphonate: 2-chloromethyl-3,5-dimethyl-4-methoxypyridine was added to a 50mL three-neck flask (0.01mol), 2.5g (0.016mol) of triethyl phosphite, a small amount of tetrabutylammonium iodide, stir, heat in an oil bath to 100-110°C, and react for 3-6h. The reactant was distilled under reduced pressure below 90°C to remove excess triethyl phosphite, and the remaining light orange-red sticky matter in the bottle was directly used for the next reaction.
[0111] Synthesis of (E)-2-[2-(3,5-dimethoxyphenyl) vinyl]-3,5-dimethyl-4-methoxypyridine: the phosphonate solution obtained in the previous step reaction In 50 mL of dry tetrahydrofuran (THF), cool in an ice-salt bath to below 0°C, quickly add NaH powder (0.025 mol) under stirring, and stir for 30 min. With stirring, ...
Embodiment 2
[0114] (E)-2-[2-(4-hydroxyphenyl)vinyl]-3,5-dimethyl-4-hydroxypyridine (also known as: (E)-4,6-dimethyl-4, 5'-dihydroxystilbene-2-nitrogen)
[0115] Synthesis of 3,5-dimethyl-4-methoxypyridine-2-methylphosphonate: 2-chloromethyl-3,5-dimethyl-4-methoxypyridine was added to a 50mL three-neck flask (0.01mol), triethyl phosphite 2.5g (0.016mol), a small amount of tetrabutylammonium iodide, stirred, heated in an oil bath to 100-110°C, and reacted for 3-6h. The reactant was distilled under reduced pressure below 90°C to remove excess triethyl phosphite, and the remaining light orange-red sticky matter in the bottle was directly used for the next reaction.
[0116] Synthesis of (E)-2-[2-(4-methoxyphenyl)vinyl]-3,5-dimethyl-4-methoxypyridine: the phosphonate obtained in the previous step reaction was dissolved in 50 mL and dried In tetrahydrofuran (THF), cool in an ice-salt bath to below 0°C, add NaH powder (0.025mol) rapidly under stirring, and stir for 30min. With stirring, 30 mL...
Embodiment 3
[0119] (E)-2-[2-(2,5-dihydroxyphenyl)vinyl]-3,5-dimethyl-4-hydroxypyridine (also known as: (E)-4,6-dimethyl -2,5,5'-trihydroxystilbene-2-nitrogen)
[0120] Synthesis of 3,5-dimethyl-4-methoxypyridine-2-methylphosphonate: 2-chloromethyl-3,5-dimethyl-4-methoxypyridine was added to a 50mL three-neck flask (0.01mol), triethyl phosphite 2.5g (0.016mol), a small amount of tetrabutylammonium iodide, stirred, heated to 100-110°C in an oil bath, and reacted for 3-6h. The reactants were distilled under reduced pressure below 90°C to remove excess triethyl phosphite, and the remaining light orange-red viscous in the bottle was directly used for the next reaction.
[0121]Synthesis of (E)-2-[2-(2,5-dimethoxyphenyl) vinyl]-3,5-dimethyl-4-methoxypyridine: the phosphonate solution obtained in the previous step reaction In 50 mL of dry tetrahydrofuran (THF), cool in an ice-salt bath to below 0°C, quickly add NaH powder (0.025 mol) under stirring, and stir for 30 min. With stirring, 30 mL o...
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