Summary of the invention
By research, applicant develops a kind of new synthetic method, and namely the present invention comes therefrom.
The invention provides a kind of preparation method of heterocyclic benzene compound, the method for: under the effect of catalyst A, there is linked reaction in the compound shown in the compound shown in formula I and formula II, generate the compound shown in formula III,
Wherein,
Ar is phenyl or substituted-phenyl, R
1for sulphur, oxygen or amino, R
2for hydrogen base, alkyl or substituted alkyl, X is halogen; A is palladium complex and Phosphine ligands catalyzer.Wherein halogen can be fluorine, chlorine, bromine, iodine etc.
Preferably, in aforesaid method, described Ar is the phenyl of phenyl, alkyl and/or halogen substiuted.When wherein Ar is substituted-phenyl, can be monosubstituted, also can be polysubstituted, and substituting group can be alkyl or halogen, such as methyl, chloromethyl, chlorine, fluorine etc.
Preferably, in aforesaid method, described R
2for hydrogen base, methyl or fluoro-alkyl.
Preferably, in aforesaid method, described X is chlorine or bromine.
Further, in the preparation method of above-mentioned heterocyclic benzene compound, palladium part is zeroth order palladium part, divalent palladium part or the mixture of the two.
Preferably, described palladium part is two (bis-Ya Benzyl benzylacetones) palladium [Pd (dba)
2], three (dibenzalacetones) close palladium (0) [Pd
2(dba)
3)], tetrakis triphenylphosphine palladium (0) [Pd (PPh
3)
4] or [two (diphenylphosphino) ferrocene of 1,1'-] palladium chloride [PdCl
2(dppf) one or more].
Preferably, described Phosphine ligands is tri-butyl phosphine, 2, the two diphenyl phosphine-1 of 2'-, 1'-dinaphthalene (BINAP), 1, two (diphenylphosphine) methane (dppm) of 1-, 1, two (diphenylphosphine) ethane (dppe) of 2-, 1, two (diphenylphosphine) propane (dppp) of 3-, 1, two (diphenylphosphine) butane (dppb) of 4-, 1, two (diphenylphosphine) ferrocene (dppf) of 1'-, 8, two (diphenylphosphino)-4 of 8'-, 4, 4', 4', 6, 6'-hexamethyl-2, the two chroman (SPANphos) of 2'-spiral shell, 4, the two diphenylphosphine-9 of 5-, 9-dimethyl xanthene (Xantphos), 2-dicyclohexyl phosphorus-2, 4, 6-tri isopropyl biphenyl (Xphos) or 2-di-t-butyl phosphine-2 ', 4 ', one or more in 6 '-tri isopropyl biphenyl (Tert-Butyl Xphos).
The preparation method of further described heterocyclic benzene compound for: there is linked reaction in the compound shown in the compound shown in formula Ia and formula IIa, the compound shown in production IIIa under the effect of catalyst A,
Wherein, A is palladium complex and Phosphine ligands catalyzer.
The present invention has mainly selected Buchwald – Hartwig linked reaction to synthesize this heterocyclic benzene compound, and reaction mechanism is as follows, specifically can be see
chinese Journal of Synthetic chemisrty Voll5.2007.No89.
In the technical program, the method for synthesizing heterocyclic pyrimidine benzene-like compounds, significantly improves reaction yield, and adopts the mode of " treating different things alike ", and reaction process safely, simply, is very applicable to suitability for industrialized production.
Embodiment
Below in conjunction with specific embodiment, technical scheme of the present invention is further elaborated.
embodiment 1
In the flask of 2L, under nitrogen protection, add 35.4g(90mmol) N-(the chloro-6-aminomethyl phenyl of 2-)-2-[(6-chloro-2-methyl-4-pyrimidyl) amino]-5-thiazole carboxamides (WO2005/77945), with 27.9g(99mmol) 3-trifluoromethyl-4-[(4-methylpiperazine-1-yl) methyl] aniline (EP1840122), 4.13g(4.5mmol) three (dibenzalacetones) close palladium (0) [Pd
2(dba)
3)], 2 of 4.2g (4.95mmol), the two diphenyl phosphine-1 of 2'-, 1'-dinaphthalene (BINAP), 15.2g(135mmol) potassium tert.-butoxide, with 1 of 1.5L, 4-dioxane, after being heated to 120 DEG C of backflow 6h, HPLC prosecution is when confirming that starting material left is less than 2%, rear stopping heating, heat filtering, filtrate leaves standstill room temperature and again filters rear dropping 3ml glacial acetic acid, after use 200g, 100-200 order silica gel system is husky, cross silicagel column, the elution of AE:PE1:15, obtain white solid, 38g, yield 63%, purity 99%, fusing point 215 DEG C, 1HNMR:(400MHz, DMSO): δ 10.01 (s, 1H), 8.32 (s, 1H), 7.40 (dd, J=1.2, 7.2Hz, 1H), 7.30-7.24 (m, 3H), 6.94 (s, 1H), 6.84 (d, J=2.4Hz, 1H), 6.74 (dd, 1H, J=2.0, 8.4Hz, 1H), 3.38 (s, 2H), 2.58 (S, 3H), 2.47 (m, 8H), 2.14 (s, 3H).
embodiment 2
In the flask of 2L, under nitrogen protection, add 35.5g(90mmol) N-(the chloro-6-aminomethyl phenyl of 2-)-2-[(6-chloro-2-methyl-4-pyrimidyl) amino]-5-thiazole carboxamides, with 27.7g(99mmol) 3-trifluoromethyl-4-[(4-methylpiperazine-1-yl) methyl] aniline, 5.1g(4.4mmol) tetrakis triphenylphosphine palladium (0) [Pd (PPh
3)
4], the toluene solution of 5ml (5mmol) tri-butyl phosphine (TTBP), 15.0g(135mmol) potassium tert.-butoxide, with 1 of 1.5L, 4-dioxane, after being heated to 120 DEG C of backflow 6h, HPLC prosecution is when confirming that starting material left is less than 2%, rear stopping heating, heat filtering, filtrate leaves standstill room temperature and again filters rear dropping 3ml glacial acetic acid, after use 200g, 100-200 order silica gel system is husky, cross silicagel column, the elution of AE:PE1:15, obtain white solid, 35g, yield 58%, purity 99%, fusing point 215 DEG C, 1HNMR:(400MHz, DMSO): δ 10.01 (s, 1H), 8.32 (s, 1H), 7.40 (dd, J=1.2, 7.2Hz, 1H), 7.30-7.24 (m, 3H), 6.94 (s, 1H), 6.84 (d, J=2.4Hz, 1H), 6.74 (dd, 1H, J=2.0, 8.4Hz, 1H), 3.38 (s, 2H), 2.58 (S, 3H), 2.47 (m, 8H), 2.14 (s, 3H).
embodiment 3
In the flask of 2L, under nitrogen protection, add 35.2g(90mmol) N-(the chloro-6-aminomethyl phenyl of 2-)-2-[(6-chloro-2-methyl-4-pyrimidyl) amino]-5-thiazole carboxamides, with 28.0g(99mmol) 3-trifluoromethyl-4-[(4-methylpiperazine-1-yl) methyl] aniline, 4.20g(4.6mmol) three (dibenzalacetones) close palladium (0) (Pd
2(dba)
3), the toluene solution of 5ml (5mmol) tri-butyl phosphine (TTBP), 15.2g(135mmol) potassium tert.-butoxide, with 1 of 1.5L, 4-dioxane, after being heated to 120 DEG C of backflow 6h, HPLC prosecution is when confirming that starting material left is less than 2%, rear stopping heating, heat filtering, filtrate leaves standstill room temperature and again filters rear dropping 3ml glacial acetic acid, after use 200g, 100-200 order silica gel system is husky, cross silicagel column, the elution of AE:PE1:15, obtain white solid, 41g, yield 68%, purity 99%, fusing point 215 DEG C, 1HNMR:(400MHz, DMSO): δ 10.01 (s, 1H), 8.32 (s, 1H), 7.40 (dd, J=1.2, 7.2Hz, 1H), 7.30-7.24 (m, 3H), 6.94 (s, 1H), 6.84 (d, J=2.4Hz, 1H), 6.74 (dd, 1H, J=2.0, 8.4Hz, 1H), 3.38 (s, 2H), 2.58 (S, 3H), 2.47 (m, 8H), 2.14 (s, 3H).
embodiment 4
In the flask of 2L, under nitrogen protection, add 35.0g(90mmol) N-(the chloro-6-aminomethyl phenyl of 2-)-2-[(6-chloro-2-methyl-4-pyrimidyl) amino]-5-thiazole carboxamides, with 27.8g(99mmol) 3-trifluoromethyl-4-[(4-methylpiperazine-1-yl) methyl] aniline, 5.2g(4.6mmol) tetrakis triphenylphosphine palladium (0) [Pd (PPH
3)
4], 2 of 4.4g (5mmol), the two diphenyl phosphine-1 of 2'-, 1'-dinaphthalene (BINAP), 15.3g(135mmol) potassium tert.-butoxide, with 1 of 1.5L, 4-dioxane, after being heated to 120 DEG C of backflow 6h, HPLC prosecution is when confirming that starting material left is less than 2%, rear stopping heating, heat filtering, filtrate leaves standstill room temperature and again filters rear dropping 3ml glacial acetic acid, after use 200g, 100-200 order silica gel system is husky, cross silicagel column, the elution of AE:PE1:15, obtain white solid, 32g, yield 53%, purity 99%, fusing point 215 DEG C, 1HNMR:(400MHz, DMSO): δ 10.01 (s, 1H), 8.32 (s, 1H), 7.40 (dd, J=1.2, 7.2Hz, 1H), 7.30-7.24 (m, 3H), 6.94 (s, 1H), 6.84 (d, J=2.4Hz, 1H), 6.74 (dd, 1H, J=2.0, 8.4Hz, 1H), 3.38 (s, 2H), 2.58 (S, 3H), 2.47 (m, 8H), 2.14 (s, 3H).
embodiment 5
In the flask of 2L, under nitrogen protection, add 35.0g(90mmol) N-(the chloro-6-aminomethyl phenyl of 2-)-2-[(6-chloro-2-methyl-4-pyrimidyl) amino]-5-thiazole carboxamides, with 27.8g(99mmol) 3-trifluoromethyl-4-[(4-methylpiperazine-1-yl) methyl] aniline, 2.6g(4.6mmol) two (bis-Ya Benzyl benzylacetones) palladium [Pd (dba)
2], 2 of 4.4g (5mmol), the two diphenyl phosphine-1 of 2'-, 1'-dinaphthalene (BINAP), 15.3g(135mmol) potassium tert.-butoxide, with 1 of 1.5L, 4-dioxane, after being heated to 120 DEG C of backflow 6h, HPLC prosecution is when confirming that starting material left is less than 2%, rear stopping heating, heat filtering, filtrate leaves standstill room temperature and again filters rear dropping 3ml glacial acetic acid, after use 200g, 100-200 order silica gel system is husky, cross silicagel column, the elution of AE:PE1:15, obtain white solid, 35g, yield 58%, purity 99%, fusing point 215 DEG C, 1HNMR:(400MHz, DMSO): δ 10.01 (s, 1H), 8.32 (s, 1H), 7.40 (dd, J=1.2, 7.2Hz, 1H), 7.30-7.24 (m, 3H), 6.94 (s, 1H), 6.84 (d, J=2.4Hz, 1H), 6.74 (dd, 1H, J=2.0, 8.4Hz, 1H), 3.38 (s, 2H), 2.58 (S, 3H), 2.47 (m, 8H), 2.14 (s, 3H).
embodiment 6
In the flask of 2L, under nitrogen protection, add 35.0g(90mmol) N-(the chloro-6-aminomethyl phenyl of 2-)-2-[(6-chloro-2-methyl-4-pyrimidyl) amino]-5-thiazole carboxamides, with 27.8g(99mmol) 3-trifluoromethyl-4-[(4-methylpiperazine-1-yl) methyl] aniline, 2.6g(4.6mmol) two (bis-Ya Benzyl benzylacetones) palladium (Pd (dba)
2), the toluene solution of 5ml (5mmol) tri-butyl phosphine (TTBP), 15.3g(135mmol) potassium tert.-butoxide, with 1 of 1.5L, 4-dioxane, after being heated to 120 DEG C of backflow 6h, HPLC prosecution is when confirming that starting material left is less than 2%, rear stopping heating, heat filtering, filtrate leaves standstill room temperature and again filters rear dropping 3ml glacial acetic acid, after use 200g, 100-200 order silica gel system is husky, cross silicagel column, the elution of AE:PE1:15, obtain white solid, 33g, yield 54%, purity 99%, fusing point 215 DEG C, 1HNMR:(400MHz, DMSO): δ 10.01 (s, 1H), 8.32 (s, 1H), 7.40 (dd, J=1.2, 7.2Hz, 1H), 7.30-7.24 (m, 3H), 6.94 (s, 1H), 6.84 (d, J=2.4Hz, 1H), 6.74 (dd, 1H, J=2.0, 8.4Hz, 1H), 3.38 (s, 2H), 2.58 (S, 3H), 2.47 (m, 8H), 2.14 (s, 3H).
embodiment 7
In the flask of 2L, under nitrogen protection, add 35.0g(90mmol) N-(the chloro-6-aminomethyl phenyl of 2-)-2-[(6-chloro-2-methyl-4-pyrimidyl) amino]-5-thiazole carboxamides, with 27.8g(99mmol) 3-trifluoromethyl-4-[(4-methylpiperazine-1-yl) methyl] aniline, 2.6g(4.6mmol) two (bis-Ya Benzyl benzylacetones) palladium (Pd (dba)
2), the 2-dicyclohexyl phosphorus-2 of 2.4g (5mmol), 4, 6-tri isopropyl biphenyl (Xphos), 15.3g(135mmol) potassium tert.-butoxide, with 1 of 1.5L, 4-dioxane, after being heated to 120 DEG C of backflow 6h, HPLC prosecution is when confirming that starting material left is less than 2%, rear stopping heating, heat filtering, filtrate leaves standstill room temperature and again filters rear dropping 3ml glacial acetic acid, after use 200g, 100-200 order silica gel system is husky, cross silicagel column, the elution of AE:PE1:15, obtain white solid, 36g, yield 60%, purity 99%, fusing point 215 DEG C, 1HNMR:(400MHz, DMSO): δ 10.01 (s, 1H), 8.32 (s, 1H), 7.40 (dd, J=1.2, 7.2Hz, 1H), 7.30-7.24 (m, 3H), 6.94 (s, 1H), 6.84 (d, J=2.4Hz, 1H), 6.74 (dd, 1H, J=2.0, 8.4Hz, 1H), 3.38 (s, 2H), 2.58 (S, 3H), 2.47 (m, 8H), 2.14 (s, 3H).
embodiment 8
In the flask of 2L, under nitrogen protection, add 35.0g(90mmol) N-(the chloro-6-aminomethyl phenyl of 2-)-2-[(6-chloro-2-methyl-4-pyrimidyl) amino]-5-thiazole carboxamides, with 27.8g(99mmol) 3-trifluoromethyl-4-[(4-methylpiperazine-1-yl) methyl] aniline, 5.2g(4.6mmol) tetrakis triphenylphosphine palladium (0) (Pd (PPh
3)
4), the 2-dicyclohexyl phosphorus-2 of 2.4g (5mmol), 4, 6-tri isopropyl biphenyl (Xphos), 15.3g(135mmol) potassium tert.-butoxide, with 1 of 1.5L, 4-dioxane, after being heated to 120 DEG C of backflow 6h, HPLC prosecution is when confirming that starting material left is less than 2%, rear stopping heating, heat filtering, filtrate leaves standstill room temperature and again filters rear dropping 3ml glacial acetic acid, after use 200g, 100-200 order silica gel system is husky, cross silicagel column, the elution of AE:PE1:15, obtain white solid, 32g, yield 53%, purity 99%, fusing point 216 DEG C, 1HNMR:(400MHz, DMSO): δ 10.01 (s, 1H), 8.32 (s, 1H), 7.40 (dd, J=1.2, 7.2Hz, 1H), 7.30-7.24 (m, 3H), 6.94 (s, 1H), 6.84 (d, J=2.4Hz, 1H), 6.74 (dd, 1H, J=2.0, 8.4Hz, 1H), 3.38 (s, 2H), 2.58 (S, 3H), 2.47 (m, 8H), 2.14 (s, 3H).
embodiment 9
In the flask of 2L, under nitrogen protection, add 35.0g(90mmol) N-(the chloro-6-aminomethyl phenyl of 2-)-2-[(6-chloro-2-methyl-4-pyrimidyl) amino]-5-thiazole carboxamides, with 27.8g(99mmol) 3-trifluoromethyl-4-[(4-methylpiperazine-1-yl) methyl] aniline, 4.13g(4.5mmol) three (dibenzalacetones) close palladium (0) (Pd
2(dba)
3), the 2-dicyclohexyl phosphorus-2 of 2.4g (5mmol), 4, 6-tri isopropyl biphenyl (Xphos), 15.3g(135mmol) potassium tert.-butoxide, with 1 of 1.5L, 4-dioxane, after being heated to 120 DEG C of backflow 6h, HPLC prosecution is when confirming that starting material left is less than 2%, rear stopping heating, heat filtering, filtrate leaves standstill room temperature and again filters rear dropping 3ml glacial acetic acid, after use 200g, 100-200 order silica gel system is husky, cross silicagel column, the elution of AE:PE1:15, obtain white solid, 32g, yield 53%, purity 99%, fusing point 215 DEG C, 1HNMR:(400MHz, DMSO): δ 10.01 (s, 1H), 8.32 (s, 1H), 7.40 (dd, J=1.2, 7.2Hz, 1H), 7.30-7.24 (m, 3H), 6.94 (s, 1H), 6.84 (d, J=2.4Hz, 1H), 6.74 (dd, 1H, J=2.0, 8.4Hz, 1H), 3.38 (s, 2H), 2.58 (S, 3H), 2.47 (m, 8H), 2.14 (s, 3H).
embodiment 10
Under nitrogen protection, the 1N added, N-(the chloro-6-aminomethyl phenyl of 2-)-2-[(6-chloro-2-methyl-4-pyrimidyl) is amino]-5-thiazole carboxamides, with 1.1N, 3-trifluoromethyl-4-[(4-methylpiperazine-1-yl) methyl] aniline, [two (diphenylphosphino) ferrocene of 1,1'-] palladium chloride [PdCl of 5%mol
2(dppf)], 4 of 5.5%mol, the two diphenylphosphine-9 of 5-, 9-dimethyl xanthene (Xantphos), 1.5Nmol potassium tert.-butoxide, 1, 4-dioxane makees solvent, after being heated to 120 DEG C of backflow 6h, rear stopping heating, heat filtering, filtrate leaves standstill room temperature and again filters rear dropping 3ml glacial acetic acid, system is husky, cross silicagel column, obtain white solid, purity 99%, fusing point 215 DEG C, 1HNMR:(400MHz, DMSO): δ 10.01 (s, 1H), 8.32 (s, 1H), 7.40 (dd, J=1.2, 7.2Hz, 1H), 7.30-7.24 (m, 3H), 6.94 (s, 1H), 6.84 (d, J=2.4Hz, 1H), 6.74 (dd, 1H, J=2.0, 8.4Hz, 1H), 3.38 (s, 2H), 2.58 (S, 3H), 2.47 (m, 8H), 2.14 (s, 3H).
Should be noted that; the foregoing is only preferred embodiment of the present invention; be not limited to scope of the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.