Benzo nitrogen hetero-aromatic ring compound, and preparation method and applications thereof
A technology of heteroaromatic rings and compounds, which is applied in the field of benzazeteroaromatic ring compounds and their preparation, and can solve the problems of easy tolerance and low curative effect
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Embodiment 1
[0137]
[0138] Step 1, 4-chloro-7-methoxyquinazolin-6-ol acetate
[0139] Place 3,4-dihydro-7-methoxy-4-oxoquinazolin-6-ol acetate (4g, 17.1mmol) in a 100mL conical flask, add 40mL dichlorohydrin at room temperature After sulfone and 1 drop of DMF, heat and reflux for 24 hours; distill off most of the thionyl chloride, add ice water, filter, and dry to obtain 4-chloro-7-methoxyquinazolin-6-alcohol acetate ( 4.07 g), yield 94%.
[0140] 1 H-NMR (400MHz, CDCl 3 ): δ8.95(s,1H),7.90(s,1H),7.44(s,1H),4.02(s,3H),2.39(s,3H).
[0141] Step 2, 4-((3-ethynylphenyl)amino)-7-methoxyquinazolin-6-ol acetate
[0142] 4-Chloro-7-methoxyquinazolin-6-ol acetate (4.07g, 16.1mmol) and 3-aminophenylacetylene (3.77g, 21.3mmol) were placed in 140mL of isopropanol, heated to reflux for 12 hours, cooled, and filtered to obtain 4-((3-ethynylphenyl)amino)-7-methoxyquinazolin-6-ol acetate (4.59 g), with a yield of 85%.
[0143] 1 H-NMR (400MHz, DMSO-d 6): δ11.48(s,1H),8.94(s,1H),8.80(s,1H),7....
Embodiment 2
[0154]
[0155] In step 4 of Example 1, 2-(tert-butoxycarbonylamino)ethyl iodide was replaced by 3-(tert-butoxycarbonylamino)propyl bromide, and the others were the same as in Example 1 to obtain compound 1-2, (E )-N-(3-(4-(3-ethynylphenylamino)-7-methoxyquinazolin-6-oxyl)propyl)-3-(pyridine-3-substituted)acrylamide.
[0156] MS(EI,m / z):480(M + +1). 1 H-NMR (400MHz, CDCl 3 ): δ8.62(s,1H),8.59(s,2H),8.51(d,J=4.7Hz,1H),7.93(s,1H),7.83(d,J=8.0Hz,1H),7.61 (d,J=8.0Hz,1H),7.51(d,J=15.7Hz,1H),7.47(s,1H),7.34–7.18(m,4H),7.14(s,1H),6.52(d, J=15.7Hz, 1H), 4.09(t, J=6.1Hz, 2H), 3.91(s, 3H), 3.60(q, J=6.0Hz, 2H), 3.02(s, 1H), 2.11–2.05( m,6.0Hz,2H). 13 C NMR (125MHz, CDCl 3 ) Δ165.8,156.7,154.9,153.6,150.4,148.9,147.4,139.1,137.6,130.5,127.7, 125.5, 122.7, 122.7.3,7.3,13.2.3.2.7.3.7, 103.2.3.7,13.2.3.7.6,13.3.2. ,56.1,37.5,28.6.
Embodiment 3
[0158]
[0159] In step 4 of Example 1, 2-(tert-butoxycarbonylamino) ethyl iodide was replaced by 4-(tert-butoxycarbonylamino) butyl bromide, and the others were the same as in Example 1 to obtain compound 1-3, (E )-N-(4-(4-(3-ethynylphenylamino)-7-methoxyquinazolin-6-oxyl)butyl)-3-(pyridine-3-substituted)acrylamide.
[0160] MS(EI,m / z):494(M + +1). 1 H-NMR (400MHz, CDCl 3 ): δ8.60(s,1H),8.56(s,2H),8.49(d,J=4.7Hz,1H),7.91(s,1H),7.81(d,J=8.0Hz,1H),7.60 (d,J=8.0Hz,1H),7.49(d,J=15.7Hz,1H),7.45(s,1H),7.31–7.15(m,4H),7.12(s,1H),6.50(d, J=15.7Hz, 1H), 4.06(t, J=6.1Hz, 2H), 3.88(s, 3H), 3.60(q, J=6.0Hz, 2H), 3.02(s, 1H), 2.13–2.07( m,4H). 13 C NMR (125MHz, CDCl 3 )δ165.3, 156.3, 154.6, 153.3, 150.1, 148.6, 148.0, 147.2, 139.0, 137.3, 134.2, 130.3, 128.7, 127.5, 125.3, 123.5, 122.7, 122.6, 109.2, 107.5, 103.2 ,37.6,29.7,28.7.
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