CN103980212A - One-pot synthesis method for heterocyclic derivatives of dibenzodiazepine - Google Patents

One-pot synthesis method for heterocyclic derivatives of dibenzodiazepine Download PDF

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CN103980212A
CN103980212A CN201410206756.1A CN201410206756A CN103980212A CN 103980212 A CN103980212 A CN 103980212A CN 201410206756 A CN201410206756 A CN 201410206756A CN 103980212 A CN103980212 A CN 103980212A
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reaction
ammoniacal liquor
hexichol
synthesis method
phenyl
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韩世清
苗大状
史雪松
蒋增强
童耀
黄媛
潘强
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Nanjing Tech University
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Nanjing Tech University
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    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D243/00Heterocyclic compounds containing seven-membered rings having two nitrogen atoms as the only ring hetero atoms
    • C07D243/06Heterocyclic compounds containing seven-membered rings having two nitrogen atoms as the only ring hetero atoms having the nitrogen atoms in positions 1 and 4
    • C07D243/10Heterocyclic compounds containing seven-membered rings having two nitrogen atoms as the only ring hetero atoms having the nitrogen atoms in positions 1 and 4 condensed with carbocyclic rings or ring systems
    • C07D243/38[b, e]- or [b, f]-condensed with six-membered rings

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Abstract

The invention relates to a one-pot synthesis method for heterocyclic derivatives of dibenzodiazepine. The one-pot synthesis method comprises the steps of with dibenzamides and ammonia water as raw materials, dissolving dibenzamides and ammonia water into an organic solvent according to the substance amount ratio of (0.5-1):2; adding an alkaline medium; adding a catalyst and a ligand; reacting at the temperature of 10-30 DEG C for 5-10h while stirring, and then, reacting at the temperature of 100-130 DEG C for 20-24h; carrying out suction filtration, extracting, drying and separating by using a chromatographic column to obtain a pure product. The one-pot synthesis method has the advantages of simplicity and convenience in reaction operation, relatively mild in condition, high in catalytic activity, little in side reaction, convenience for product after-treatment, high product selectivity and wide substrate expansion range; in addition, a catalytic system is capable of omitting precious metal chemical complexes and reducing economic costs generated by complex ligand application and high reaction temperature, and is safe, convenient and little to environment pollution.

Description

The method of the synthetic two Benzodiazepine Hete rocyclic derivatives of one kettle way
Technical field
The present invention relates to organic synthesis field, be specifically related to a kind of method of synthetic two Benzodiazepine Hete rocyclic derivatives.
Background technology
Many have a heterocycle structure that bioactive compound all contains two Benzodiazepines, and the compound with hexichol diazepine structure plays an important role at medicine and pesticide industry at biologically active drug or agency.Comprising clinical thymoleptic dibenzepin (A), non-peptide endothelin-receptor antagonists (B), inhibitors of histone deacetylase (C), M acetylcholine receptor modulator (D).
The method of synthetic these compounds of tradition is to general structure 1, the selective alkylation of unsubstituted 11-oxygen two these tricyclic structures of Benzodiazepine of 6-.But reactions steps is long owing to being subject to the impact of commercially available available starting raw material, and in the alkylated reaction of diarylamine, the low productive rate that causes of reactive behavior due to amine is not high.
In recent years, the method for synthetic two Benzodiazepine Hete rocyclic derivatives that had bibliographical information, the people such as such as Murugesan have reported for work and have used K 2cO 3the bromo-3-nitrophenols of catalysis 4-and 1-brooethyl naphthalene are under the existence of dimethyl formamide (DMF), room temperature reaction synthetic compound, again at copper catalyst, under alkaline matter, reflux 6 hours through synthetic two Benzodiazepine Hete rocyclic derivatives (the Murugesan et al.Bioorg.Med.Chem.Lett.1995 of 3,4 steps, 5,253); Wang in 2007, the people such as L have reported for work by the back flow reaction and then obtain two Benzodiazepine heterocycle structures (Wang, L et al.J.Med.Chem.2007,50,4162.) in chlorobenzene solution of 0-chloro-benzoic acid and O-Phenylene Diamine under copper catalysis; Binaschi in 2010, the people such as M have reported 1, the selective alkylation of unsubstituted 11-oxygen two these tricyclic structures of Benzodiazepine of 6-, and then synthetic two Benzodiazepine Hete rocyclic derivatives (Binaschi, M et al.Med.Chem.Lett.2010, Isosorbide-5-Nitrae 11.).
But, aforesaid method exists some defects, these tricyclic heterocyclics react with 2-halogenated nitrobenzene and conventionally need several steps with the anthranilic acid of copper catalytic coupling its preparation, beginning, these method sequence length are loaded down with trivial details, expensive raw material price, productive rate is on the low side, aftertreatment is more difficult, whether can under the condition that changes catalyst system, prepare that structure for activity hexichol acid amides on the low side, and then prepare medicine olanzapine, leoponex and still have very much researching value.System is immature, productive rate is on the low side and the dependence of complex substrate has seriously been restricted to its industrial applications in a lot of fields.
Summary of the invention
The object of the present invention is to provide the method for the synthetic two Benzodiazepine Hete rocyclic derivatives of one kettle way.The feature such as the method has that cost is low, the operability of mild condition, raw material is large, productive rate is high, substrate suitability is wide.
The technical solution used in the present invention is: the method for the synthetic two Benzodiazepine Hete rocyclic derivatives of one kettle way, its concrete steps are as follows: getting hexichol acid amides is that 0.5~1:2 is dissolved in organic solvent with ammoniacal liquor by amount of substance ratio, add alkaline medium, add catalyzer and part, first stirring reaction 5~10h at 10~30 DEG C of temperature, then at 100~130 DEG C of temperature, react 20~24h acquisition hexichol diazepine analog derivative.
Reaction process is as follows:
Preferably dibenzoyl amine structure is as follows:
wherein X is selected from the one in iodine, chlorine or bromine, and Y is selected from the one in iodine, chlorine or bromine, and R is selected from chlorine, fluorine or methyl a kind of.
Hexichol acid amides is selected from: the iodo-N-of 2-(the iodo-phenyl of 2-)-benzamide n-(the iodo-phenyl of the fluoro-2-of 4-)-2-iodobenzene methane amide n-(the bromo-phenyl of 2-)-2-iodobenzene methane amide n-(the fluoro-phenyl of the bromo-4-of 2-)-2-iodobenzene methane amide n-(the fluoro-phenyl of the chloro-4-of 2-)-2-iodobenzene methane amide n-(the chloro-phenyl of 2-)-2-iodobenzene methane amide bromo-N-(the bromo-phenyl of 2-)-benzamide the bromo-N-of 2-(the fluoro-phenyl of the bromo-4-of 2-)-benzamide
The bromo-N-of 2-(the iodo-phenyl of the fluoro-2-of 4-)-benzamide the bromo-N-of 2-(the iodo-phenyl of 2-)-benzamide the bromo-N-of 2-(the chloro-phenyl of 2-)-benzamide the bromo-N-of 2-(the chloro-phenyl of the fluoro-2-of 4-)-benzamide the chloro-N-of 2-(the chloro-phenyl of 2-)-benzamide the chloro-N-of 2-(the fluoro-phenyl of the chloro-4-of 2-)-benzamide the chloro-N-of 2-(the fluoro-phenyl of the iodo-4-of 2-)-benzamide the chloro-N-of 2-(the fluoro-phenyl of the bromo-4-of 2-)-benzamide n-(the bromo-phenyl of 2-) the chloro-benzamide of-2- the chloro-N-of 2-(the iodo-phenyl of 2-)-benzamide in one.
Described alkaline medium is phosphate radical metal-salt, carbonate metal-salt or hydroxide radical metal-salt, and molecular formula is (M) 3pO 4, (M) 2cO 3or M (OH), wherein metal M is selected from the one of caesium (Cs), sodium (Na) or potassium (K); Preferably alkaline medium is KOH, NaOH, K 3pO 4or K 2cO 3; Preferably alkaline medium is 1~1.5:1 with the amount of substance ratio of ammoniacal liquor.
In technique scheme, the one in the preferred dimethyl sulfoxide (DMSO) of solvent (DMSO), dimethyl formamide (DMF), methyl alcohol or toluene.The add-on of solvent is solubilizing reaction raw material.
Preferably above-mentioned catalyzer is CuI, CuBr, Cu 2o or Cu 2cl.The amount of substance ratio of preferred catalyst and ammoniacal liquor is 0.05~0.1:1.
Preferably above-mentioned part is oxine and 1,10-phenanthroline or L-PROLINE.Preferably part is 0.05~0.1:1 with the amount of substance ratio of ammoniacal liquor.
The mass concentration of preferred above-mentioned ammoniacal liquor is 25%~28%.
In technique scheme, reaction is first at 10~30 DEG C of stirring reaction 5~10h, the reaction 20-24 hour in temperature to 100~130 DEG C again, system through cooling, extraction, dry, chromatography column separates, underpressure distillation obtains product, after recrystallization, can obtain highly purified product.
Due to the utilization of technique scheme, the present invention compared with prior art has following advantages:
1. due to alkaline medium, and the application of reactant hexichol acid amides and ammoniacal liquor, this reaction can be carried out at lower temperature, and reaction conditions is simple, gentleness, and reaction yield is high, can reach 95% productive rate.
2. taking phosphate radical metal-salt as alkaline medium, ammoniacal liquor is cheap and easy to get, and reaction system adds cheap part can obtain target product, has solved the increase problem of final product Financial cost, has reduced the pollution to environment; Product can complete aftertreatment through overcooling, extraction, dry, underpressure distillation, washing, recrystallization, and aftertreatment is simple, convenient.
3. above-mentioned set up catalyst system, suitability is extensive, and the transformation efficiency of substrate and the productive rate of product are all higher, have expanded the industrial applications in a lot of fields.
Embodiment
Below in conjunction with embodiment, the invention will be further described, but embodiment does not limit the present invention in any way: embodiment 1:
The present embodiment is the synthetic of hexichol Diazepines, with N-(the fluoro-phenyl of the bromo-4-of 2-)-2-iodobenzene methane amide, ammoniacal liquor (25%~28%), K 3pO 4, CuI, dimethyl formamide, 1,10 phenanthroline be raw material, reaction formula is as follows:
Preparation method: add N-(the fluoro-phenyl of the bromo-4-of 2-)-2-iodobenzene methane amide of 0.5mmol in 25ml eggplant-shape bottle, the ammoniacal liquor of 1mmol, the CuI of 0.05mmol, the K of 1.5mmol 3pO 4, 1,10 phenanthroline of 0.05mmol, then add 2ml dimethyl formamide, first stirring reaction 5 hours at 10 DEG C, the reaction of some silica-gel plate finishes, and shifts eggplant-shape bottle to oil bath pan, and 110 DEG C are stirred 24 hours, and solution becomes Vandyke brown, has product generation.
Reaction solution is filtered and obtains white solid after cooling, extraction, dry, chromatography column separation, underpressure distillation, washing, recrystallization.
Productive rate is 89%, and the fusing point of this hexichol diazepine is: 240-265 DEG C; Nucleus magnetic hydrogen spectrum 1h NMR (500MHz, CDCl 3) :=7.99-8.01 (d, J=7.85Hz, 1H), 7.59-7.62 (dd, J=8.575Hz, 1H), 7.24-7.27 (t, 3H), 7.04-7.07 (t, 1H), 6.76-6.79 (t, 2H).
Embodiment 2:
The present embodiment is the synthetic of hexichol Diazepines, with N-(the bromo-phenyl of 2-)-2-iodobenzene methane amide, ammoniacal liquor (25%~28%), KOH, Cu 2o, dimethyl formamide, 1,10 phenanthroline are raw material, and reaction formula is as follows:
Preparation method: add N-(the bromo-phenyl of 2-)-2-iodobenzene methane amide of 0.25mmol in 25ml eggplant-shape bottle, the ammoniacal liquor of 1mmol, the Cu of 0.05mmol 2o, the KOH of 1.5mmol, 1,10 phenanthroline of 0.05mmol, add again 2ml dimethyl sulfoxide (DMSO) (DMSO), first stirring reaction 10 hours at 15 DEG C, the reaction of some silica-gel plate finishes, and shifts eggplant-shape bottle to oil bath pan, 110 DEG C are stirred 24 hours, and solution becomes Vandyke brown, have product to generate.
Reaction solution is filtered and obtains white solid after cooling, extraction, dry, chromatography column separation, underpressure distillation, washing, recrystallization.
Productive rate is 89%, and the fusing point of this hexichol diazepine is: 259-261 DEG C; Nucleus magnetic hydrogen spectrum 1h NMR (300MHz, CDCl 3) :=9.79 (s, 1H), 7.79 (s, 1H), 7.61-7.64 (d, J=8.0Hz, 1H), 7.27-7.32 (dd, J=8.0Hz, 1.6Hz, 1H), 6.82-6.95 (m, 6H).
Embodiment 3:
The present embodiment is the synthetic of hexichol Diazepines, taking N-(the bromo-5-chloro-phenyl-of 2-)-2-iodobenzene methane amide, ammoniacal liquor (25%~28%), NaOH, CuBr, dimethyl formamide, oxine as raw material, reaction formula is as follows:
Preparation method: N-(the bromo-5-chloro-phenyl-of the 2-)-2-iodobenzene methane amide that adds 0.25mmol in 25ml eggplant-shape bottle, the ammoniacal liquor of 1mmol, the CuBr of 0.05mmol, the NaOH of 1.5mmol, the oxine of 0.05mmol, add again 2ml dimethyl formamide, first stirring reaction 5 hours at 30 DEG C, the reaction of some silica-gel plate finishes, shift eggplant-shape bottle to oil bath pan, 100 DEG C are stirred 20 hours, and solution becomes dark color, have product to generate.
Reaction solution is filtered and obtains white solid after cooling, extraction, dry, chromatography column separation, underpressure distillation, washing, recrystallization.
Productive rate is 81%, and the fusing point of this hexichol diazepine is: 230-250 DEG C; Nucleus magnetic hydrogen spectrum: 1h NMR (300 MHz, CDCl 3) :=7.92 – 7.95 (dd, J=2.1,8.4Hz, 1H), 7.87 – 7.90 (dd, J=1.5,8.1Hz, 1H), 7.73 – 7.77 (d, J=8.4Hz, 1H), 7.42 – 7.46 (dd, J=2.1,8.4Hz, 1H), 7.26 – 7.34 (m, 1H), 7.14 (s, 2H), 6.90 – 6.93 (dd, J=0.6,8.4Hz, 1H), 6.68 – 6.73 (m, 1H).
Embodiment 4:
The present embodiment is the synthetic of hexichol Diazepines, with N-(the chloro-phenyl of 2-)-2-iodobenzene methane amide, ammoniacal liquor (25%~28%), K 3cO 3, CuI, dimethyl formamide, oxine be raw material, reaction formula is as follows:
Preparation method: add N-(the chloro-phenyl of 2-)-2-iodobenzene methane amide of 0.5mmol in 25ml eggplant-shape bottle, the ammoniacal liquor of 1mmol, the CuI of 0.1mmol, the K of 1mmol 3cO 3, the oxine of 0.1mmol, then add 2ml dimethyl formamide, first stirring reaction 5 hours at 30 DEG C, the reaction of some silica-gel plate finishes, and shifts eggplant-shape bottle to oil bath pan, and 130 DEG C are stirred 24 hours, and solution becomes dark color, has product generation.
Reaction solution is filtered and obtains white solid after cooling, extraction, dry, chromatography column separation, underpressure distillation, washing, recrystallization.
Productive rate is 79%, and the fusing point of this hexichol diazepine is: 250-260 DEG C; Nucleus magnetic hydrogen spectrum 1h NMR (300MHz, CDCl 3) :=9.79 (s, 1H), 7.79 (s, 1H), 7.61-7.a64 (d, J=8.0Hz, 1H), 7.27-7.32 (dd, J=8.0Hz, 1.6Hz, 1H), 6.82-6.95 (m, 6H).
Embodiment 5:
The present embodiment is the synthetic of hexichol Diazepines, with N-(the bromo-3-chloro-phenyl-of 2-)-2-iodobenzene methane amide, ammoniacal liquor (25%~28%), K 3pO 4, Cu 2cl, dimethyl formamide, 1,10 phenanthroline are raw material, and reaction formula is as follows:
Preparation method: add N-(the bromo-3-chloro-phenyl-of the 2-)-2-iodobenzene methane amide of 0.5mmol in 25ml eggplant-shape bottle, the ammoniacal liquor of 1mmol, the Cu of 0.05mmol 2cl, the K of 1.5mmol 3pO 4, 1,10 phenanthroline of 0.05mmol, then add 2ml dimethyl formamide, first stirring reaction 8 hours at 20 DEG C, the reaction of some silica-gel plate finishes, and shifts eggplant-shape bottle to oil bath pan, and 110 DEG C are stirred 24 hours, and solution becomes dark color, has product generation.
Reaction solution is filtered and obtains white solid after cooling, extraction, dry, chromatography column separation, underpressure distillation, washing, recrystallization.
Productive rate is 83%, and the fusing point of this hexichol diazepine is: 220-240 DEG C; Nucleus magnetic hydrogen spectrum: 1h NMR (300MHz, DMSO-d 6) :=7.90 – 7.95 (dd, J=1.5,8.1Hz, 1H), 7.74 – 7.79 (dd, J=0.9,8.1Hz, 1H), 7.44 – 7.51 (dd, J=0.9,8.1Hz, 1H), 7.40 – 7.43 (d, J=7.8Hz, 1H), 7.28 – 7.39 (m, 1H), 7.16 (s, 2H), 6.90 – 6.94 (d, J=7.5Hz, 1H), 6.67 – 6.72 (m, 1H).
Embodiment 6:
The present embodiment is the synthetic of hexichol Diazepines, with N-(the bromo-3-aminomethyl phenyl of 2-)-2-iodobenzene methane amide, ammoniacal liquor (25%~28%), K 3pO 4, CuI, dimethyl formamide, 1,10 phenanthroline be raw material, reaction formula is as follows:
Preparation method: add N-(the bromo-3-aminomethyl phenyl of the 2-)-2-iodobenzene methane amide of 0.5mmol in 25ml eggplant-shape bottle, the ammoniacal liquor of 1mmol, the CuI of 0.05mmol, the K of 1.5mmol 3pO 4, 1,10 phenanthroline of 0.05mmol, then add 2ml dimethyl formamide, first, 15 times stirring reactions 8 hours, the reaction of some silica-gel plate finishes, and shifts eggplant-shape bottle to oil bath pan, and 100 DEG C are stirred 20 hours, and solution becomes Vandyke brown, has product generation.
Reaction solution is filtered and obtains white solid after cooling, extraction, dry, chromatography column separation, underpressure distillation, washing, recrystallization.
Productive rate is 85%, and the fusing point of this hexichol diazepine is: 230-260 DEG C; Nucleus magnetic hydrogen spectrum 1h NMR (300MHz, DMSO-d 6): δ=11.26 (s, 1H), 8.72 (s, 1H), 8.16 – 8.20 (d, J=8.7Hz, 1H), 7.63-7.66 (d, J=8.1Hz, 1H), 7.26 – 7.37 (dd, J=7.5,15.6Hz, 1H), 6.97 – 7.03 (d, J=8.4Hz, 1H), 6.70 – 6.79 (dd, J=7.5,11.7Hz, 2H), 5.78 (s, 1H), 2.48 (s, 3H).
Embodiment 7:
The present embodiment is the synthetic of hexichol Diazepines, with N-(the fluoro-phenyl of the bromo-5-of 2-)-2-iodobenzene methane amide, ammoniacal liquor (25%~28%), K 3pO 4, CuI, toluene, 1,10 phenanthroline be raw material, reaction formula is as follows:
Preparation method: add N-(the fluoro-phenyl of the bromo-5-of 2-)-2-iodobenzene methane amide of 0.5mmol in 25ml eggplant-shape bottle, the ammoniacal liquor of 1mmol, the CuI of 0.05mmol, the K of 1.5mmol 3pO 4, 1,10 phenanthroline of 0.05mmol, then add 2ml toluene, first stirring reaction 5 hours at 10 DEG C, the reaction of some silica-gel plate finishes, and shifts eggplant-shape bottle to oil bath pan, and 110 DEG C are stirred 24 hours, and solution becomes Vandyke brown, has product generation.
Reaction solution is filtered and obtains white solid after cooling, extraction, dry, chromatography column separation, underpressure distillation, washing, recrystallization.
Productive rate is 83%, and the fusing point of this hexichol diazepine is: 235-260 DEG C; Nucleus magnetic hydrogen spectrum 1h NMR (400MHz, CDCl 3) δ=8.39 (s, 1H), 7.92-7.90 (d, J=7.6Hz, 1H), 7.35-7.31 (t, J=3.6Hz, 1H), 7.00-7.97 (t, J=3.6Hz, 1H), 6.76-6.74 (m, 4H), 5.33 (s, 1H).
Embodiment 8:
The present embodiment is the synthetic of hexichol Diazepines, with N-(the bromo-4-aminomethyl phenyl of 2-)-2-iodobenzene methane amide, ammoniacal liquor (25%~28%), K 3pO 4, CuBr, dimethyl sulfoxide (DMSO), oxine be raw material, reaction formula is as follows:
Preparation method: add N-(the bromo-4-aminomethyl phenyl of the 2-)-2-iodobenzene methane amide of 0.5mmol in 25ml eggplant-shape bottle, the ammoniacal liquor of 1mmol, the CuBr of 0.05mmol, the K of 1.5mmol 3pO 4, the oxine of 0.05mmol, then add 2ml dimethyl sulfoxide (DMSO), first stirring reaction 5 hours at 20 DEG C, the reaction of some silica-gel plate finishes, and shifts eggplant-shape bottle to oil bath pan, and 110 DEG C are stirred 24 hours, and solution becomes Vandyke brown, has product generation.
Reaction solution is filtered and obtains white solid after cooling, extraction, dry, chromatography column separation, underpressure distillation, washing, recrystallization.
Productive rate is 81%, and the fusing point of this hexichol diazepine is: 225-255 DEG C; Nucleus magnetic hydrogen spectrum 1h NMR (500MHz, CDCl 3): δ=8.05 (d, J=3.9Hz, 1H), 7.58 (d, J=4.0Hz, 1H), 7.37 (s, 1H), 7.29-7.26 (m, 1H), 7.6-7.14 (m, 1H), 6.83-6.79 (m, 2H), 6.32 (s, 2H), 2.51 (s, 3H).
Embodiment 9:
The present embodiment is the synthetic of hexichol Diazepines, with the iodo-N-of 2-(2-iodophenyl) benzamide, ammoniacal liquor (25%~28%), K 3pO 4, CuI, dimethyl formamide, 1,10 phenanthroline be raw material, reaction formula is as follows:
Preparation method: add the iodo-N-of 2-(2-iodophenyl) benzamide of 0.5mmol in 25ml eggplant-shape bottle, the ammoniacal liquor of 1mmol, the CuI of 0.05mmol, the K of 1.5mmol 3pO 4, 1,10 phenanthroline of 0.05mmol, then add 2ml dimethyl formamide, first stirring reaction 5 hours at 15 DEG C, the reaction of some silica-gel plate finishes, and shifts eggplant-shape bottle to oil bath pan, and 110 DEG C are stirred 24 hours, and solution becomes Vandyke brown, has product generation.
Reaction solution is filtered and obtains white solid after cooling, extraction, dry, chromatography column separation, underpressure distillation, washing, recrystallization.
Productive rate is 74%, and the fusing point of this hexichol diazepine is: 245-260 DEG C; Nucleus magnetic hydrogen spectrum 1h NMR (300MHz, CDCl 3) :=9.79 (s, 1H), 7.79 (s, 1H), 7.61-7.a64 (d, J=8.0Hz, 1H), 7.27-7.32 (dd, J=8.0Hz, 1.6Hz, 1H), 6.82-6.95 (m, 6H).
Embodiment 10:
The present embodiment is the synthetic of hexichol Diazepines, with N-(the chloro-5-fluorophenyl of 2-)-2-iodobenzene methane amide, ammoniacal liquor (25%~28%), K 3pO 4, CuI, dimethyl formamide, 1,10 phenanthroline be raw material, reaction formula is as follows:
Preparation method: add N-(the chloro-5-fluorophenyl of the 2-)-2-iodobenzene methane amide of 0.5mmol in 25ml eggplant-shape bottle, the ammoniacal liquor of 1mmol, the CuI of 0.05mmol, the K of 1.5mmol 3pO 4, the oxine of 0.05mmol, then add 2ml dimethyl formamide, first stirring reaction 5 hours at 25 DEG C, the reaction of some silica-gel plate finishes, and shifts eggplant-shape bottle to oil bath pan, and 110 DEG C are stirred 24 hours, and solution becomes Vandyke brown, has product generation.
Reaction solution is filtered and obtains white solid after cooling, extraction, dry, chromatography column separation, underpressure distillation, washing, recrystallization.
Productive rate is 75%, and the fusing point of this hexichol diazepine is: 235-260 DEG C; Nucleus magnetic hydrogen spectrum 1h NMR (400MHz, CDCl 3) δ=8.39 (s, 1H), 7.92-7.90 (d, J=7.6Hz, 1H), 7.35-7.31 (t, J=3.6Hz, 1H), 7.00-7.97 (t, J=3.6Hz, 1H), 6.76-6.74 (m, 4H), 5.33 (s, 1H).

Claims (9)

1. the method for the synthetic two Benzodiazepine Hete rocyclic derivatives of one kettle way, its concrete steps are as follows: getting hexichol acid amides is that 0.5~1:2 is dissolved in organic solvent with ammoniacal liquor by amount of substance ratio, add alkaline medium, add catalyzer and part, first stirring reaction 5~10h at 10~30 DEG C of temperature, then at 100~130 DEG C of temperature, react 20~24h acquisition hexichol diazepine analog derivative.
2. method according to claim 1, is characterized in that described alkaline medium is KOH, NaOH, K 3pO 4or K 2cO 3.
3. method according to claim 1, is characterized in that described organic solvent is dimethyl sulfoxide (DMSO), dimethyl formamide, methyl alcohol or toluene.
4. method according to claim 1, is characterized in that described catalyzer is CuI, CuBr, Cu 2o or Cu 2cl.
5. method according to claim 1, is characterized in that described part is oxine and 1,10-phenanthroline or L-PROLINE.
6. method according to claim 1, is characterized in that: the amount of substance ratio of catalyzer and ammoniacal liquor is 0.05~0.1:1.
7. the method for closing according to claim 1, is characterized in that: alkaline medium is 1~1.5:1 with the amount of substance ratio of ammoniacal liquor.
8. method according to claim 1, is characterized in that: part is 0.05~0.1:1 with the amount of substance ratio of ammoniacal liquor.
9. method according to claim 1, is characterized in that: the structure of described hexichol acid amides is as follows:
wherein X is selected from the one in iodine, chlorine or bromine, and Y is selected from the one in iodine, chlorine or bromine, and R is selected from chlorine, fluorine or methyl a kind of.
CN201410206756.1A 2014-05-15 2014-05-15 One-pot synthesis method for heterocyclic derivatives of dibenzodiazepine Pending CN103980212A (en)

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CN106220576A (en) * 2016-07-28 2016-12-14 常州大学 A kind of synthetic method of clozapine key intermediate
CN106279048A (en) * 2016-07-28 2017-01-04 常州大学 A kind of method preparing clozapine key intermediate
CN108586364A (en) * 2017-12-28 2018-09-28 新乡医学院 A kind of Dibenzazepines compound and the preparation method and application thereof
CN110773144A (en) * 2019-10-28 2020-02-11 湖南科技学院 Catalytic system for preparing amide by hydrolyzing cyano and application thereof
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CN106220576B (en) * 2016-07-28 2018-10-16 常州大学 A kind of synthetic method of Clozapine key intermediate
CN108586364A (en) * 2017-12-28 2018-09-28 新乡医学院 A kind of Dibenzazepines compound and the preparation method and application thereof
CN110773144A (en) * 2019-10-28 2020-02-11 湖南科技学院 Catalytic system for preparing amide by hydrolyzing cyano and application thereof
CN114276304A (en) * 2021-10-09 2022-04-05 南京苏亦欣医药科技有限公司 A method for preparing 1, 5-benzodiazepine derivative as medicinal intermediate containing fused ring

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