二氢-2H-吡喃-4(3H)-酮肟

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: By the same reaction and treatment as in Example 48 using tetrahydro-4H-pyran-4-one oxime and ethyl 4-(4-(4-fluorophenyl)piperazin-1-yl)-n-butyrate, 3-(3-(4-(4-fluorophenyl)piperazin-1-yl)propyl)-6,7-dihydro-4H-pyrano[4,3-c]isoxazole is obtained.

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: By the same reaction and treatment as in Example 48 using tetrahydro-4H-pyran-4-one oxime and ethyl 4-(4-(4-fluorophenyl)piperazin-1-yl)-n-butyrate, 3-(3-(4-(4-fluorophenyl)piperazin-1-yl)propyl)-6,7-dihydro-4H-pyrano[4,3-c]isoxazole is obtained.

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 4-Nitrosotetrahydro-2H-pyran-4-yl 4-({2-[4-(2-methylpropyl)phenyl]propanoyl}oxy)butanoate was prepared from tetrahydropyran-4-one oxime and bis 4-({2-[4-(2methylpropyl)phenyl]propanoyl}oxy)butanoate)iodobenzene (synthesized from 4-({2-[4-(2-methylpropyl)phenyl]propanoyl}oxy)butanoic acid and iodobenzene diacetate) and using conditions of General Method 4. 1H NMR (250 MHz, CHLOROFORM-d) δ 7.16-7.25 (2H, m), 7.03-7.14 (2H, m), 4.15 (2H, dt, 12.3, 6.2 Hz), 3.98-4.09 (2H, m), 3.59-3.79 (3H, m), 2.40-2.53 (4H, m), 2.27-2.37 (1H, m), 2.11-2.28 (1H, m), 1.74-2.07 (5H, m), 1.50 (3H, dd, 7.2, 4.3 Hz), 0.90 (6H, d, 6.2 Hz).

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 4-Nitrosotetrahydro-2H-pyran-4-yl 2-(acetyloxy)benzoate was prepared from tetrahydro-pyran-4-one oxime, lead tetraacetate and Aspirin using conditions of General Method 3. 1H NMR (500 MHz, CHLOROFORM-d) δ 8.15 (1H, dd, 7.8, 1.5 Hz), 7.65 (1H, td, 7.8, 1.5 Hz), 7.40 (1H, t, 7.6 Hz), 7.17 (1H, d, 8.1 Hz), 4.08 (2H, dt, 11.6, 4.1 Hz), 3.79 (2H, td, 11.5, 2.4 Hz), 2.21-2.29 (5H, m), 1.96-1.99 (2H, m).

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 2-Methyl-2-((4-nitrosotetrahydro-2H-pyran-4-yloxy)carbonyl)propane-1,3-diyl diacetate was prepared from tetrahydro-pyran-4-one oxime and bis(3-acetoxy-2-acetoxymethyl-2-methyl-propionate)iodobenzene (synthesized from iodobenzene diacetate and 3-acetoxy-2-acetoxymethyl-2-methyl-propionic acid which was in turn synthesized using the reported method J. Am. Chem. Soc., 118, 1996, 6388-6395) using conditions of General Method 4. 1H NMR (250 MHz, CHLOROFORM-d) δ 4.32 (4H, s), 3.98-4.17 (2H, m), 3.54-3.74 (2H, m), 2.28-2.46 (2H, m), 2.13 (6H, s), 1.77-1.94 (2H, m), 1.40 (3H, s). synthesized

反应条件: temp:165.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A suspension of dihydro-2H-pyran-4(3H)-one oxime (7 g, 60.8 mmol), dimethylacetylene dicarboxylate (9.72 ml, 79 mmol), and DABCO (2.046 g, 18.24 mmol) in Toluene (27.5 ml) were heated to 165° C. After 2 h, the reaction mixture was cooled to ambient temperature, concentrated in vacuo and purified by ISCO (0-100% EtOAc-hexanes) to afford dimethyl 1,4,6,7-tetrahydropyrano[4,3-b]pyrrole-2,3-dicarboxylate (3.2 g, 13.38 mmol, 22.00% yield) as a yellow solid. The residue was dissolved in DMF (30 mL), and treated with Cs2CO3 (5.29 g, 16.23 mmol) and 4-fluorobenzyl bromide (2.023 ml, 16.23 mmol). After 2 h, the reaction mixture was partitioned between EtOAc and sat. aq. NH4Cl. The organic layer was washed with water, brine, dried (MgSO4), filtered and concentrated in vacuo. The residue was purified by ISCO (0-50% EtOAc-hexanes; 120 g column) to afford dimethyl 1-(4-fluorobenzyl)-1,4,6,7-tetrahydropyrano[4,3-b]pyrrole-2,3-dicarboxylate (3.92 g, 11.29 mmol, 18.56% yield) as a yellow oil. LCMS (m/z) ES+=348 (M+1). the reaction mixture was cooled to ambient temperature concentrated in vacuo purified by ISCO (0-100% EtOAc-hexanes)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Using an analogous procedure to that described in Example 1, tetrahydropyran-4-one oxime was reacted with 4-{3-[4-(1-chloroethyl)-phenylthio] -5-fluorophenyl}-4-methoxytetrahydropyran to give tetrahydropyran-4-one O-{4-[5-fluoro-3-(4-methoxytetrahydropyran-4-yl)-phenylthio]-α-methylbenzyl}oxime as an oil in 74% yield.

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 4-Nitrosotetrahydro-2H-pyran-4-yl 4-({2-[4-(2-methylpropyl)phenyl]propanoyl}oxy)butanoate was prepared from tetrahydropyran-4-one oxime and bis 4-({2-[4-(2methylpropyl)phenyl]propanoyl}oxy)butanoate) iodobenzene (synthesized from 4-({2-[4-(2-methylpropyl)phenyl]propanoyl}oxy)butanoic acid and iodobenzene diacetate) and using conditions of General Method 4. 1H NMR (250 MHz, CHLOROFORM-d) δ 7.16-7.25 (2H, m), 7.03-7.14 (2H, m), 4.15 (2H, dt, 12.3, 6.2 Hz), 3.98-4.09 (2H, m), 3.59-3.79 (3H, m), 2.40-2.53 (4H, m), 2.27-2.37 (1H, m), 2.11-2.28 (1H, m), 1.74-2.07 (5H, m), 1.50 (3H, dd, 7.2, 4.3 Hz), 0.90 (6H, d, 6.2 Hz).

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 4-Nitrosotetrahydro-2H-pyran-4-yl 2-(acetyloxy)benzoate was prepared from tetrahydro-pyran-4-one oxime, lead tetraacetate and Aspirin using conditions of General Method 3. 1H NMR (500 MHz, CHLOROFORM-d) δ 8.15 (1H, dd, 7.8, 1.5 Hz), 7.65 (1H, td, 7.8, 1.5 Hz), 7.40 (1H, t, 7.6 Hz), 7.17 (1H, d, 8.1 Hz), 4.08 (2H, dt, 11.6, 4.1 Hz), 3.79 (2H, td, 11.5, 2.4 Hz), 2.21-2.29 (5H, m), 1.96-1.99 (2H, m).