[10-(乙酰氧基甲基)蒽-9-基]醋酸甲酯

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

实验步骤: A mixture of diethyl malonate (160 g., 1.0 mole), ethyl ortho-formate (148 g., 1.0 mole), acetic anhydride solvent (204 g., 2 moles) and anhydrous zinc chloride catalyst (0.5 g) was heated in an oil bath for 6.5 hr (temperature of contents 104°-113° C). The mixture was then distilled through a short column during 3.5 hr, raising the pot temperature to 124°and yielding 120 ml of distillate. The residue was treated with additional ethyl orthoformate (148 g., 1.0 mole) and acetic and acetic anhydride (204 g., 2.0 moles) and distillation was continued for 3 hr to yield 160 ml of distillate (pot temperature 120°-130°). After standing at 25° for 18 hr the residue was diluted with 250 ml of ether and washed thoroughly with water. The combined extracts were dried over magnesium sulfate and distilled to yield a forerun (26 g.) containing principally diethyl malonate and 156 g. (72%) of ethyl ethoxymethylenemalonate, b.p. 109°-111° (0.9mm) (85% yield based on unrecovered diethyl malonate); NMR (CDCl3): δ 7.62 (s,l,=CH), 4.22 (q. J = 7Hz, 2, CH2), 4.19 (q, J = 7 Hz, 4, CH2), 1.37 (t, J = 7 Hz, 3, CH3), 1.30 (t, J = 7 Hz, 6, CH3). was heated in an oil bath for 6.5 hr (temperature of contents 104°-113° C) The mixture was then distilled through a short column during 3.5 hr raising the pot temperature to 124°and yielding 120 ml of distillate to yield 160 ml of distillate (pot temperature 120°-130°) After standing at 25° for 18 hr washed thoroughly with water The combined extracts were dried over magnesium sulfate distilled to yield a forerun (26 g.)

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

实验步骤: Starting from a 5α-alkoxymethyl-2β,4α-dihydroxy-cyclopentyl-1β-acetic acid-γ-lactone, wherein the alkoxy group is a methoxy, benzyloxy and p-methoxybenzyloxy group, esterification in pyridine with 1.3 molar equivalents of both acetic, acetic-formic or propionic anhydride and benzoyl or p-phenylbenzoyl chloride, gave the 4α-formate, acetate, m.p. 76°-77°, [α]D = - 29.5°, [α]365° = - 74°(CHCl3), propionate, benzoate and p-phenylbenzoate.

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

实验步骤: 2-(2-Aminothiazol-4-yl)-2-iso-propoxyiminoacetic acid (syn isomer, 4 g.), acetic anhyddride (7.6 g.) and formic acid (3.4 g.) were treated in a similar manner to that of Example F-(5) to give 2-(2-formamidothiazol-4-yl)-2-isopropoxyiminoacetic acid (syn isomer, 3.75 g.), mp. 168° to 169° C. (dec.).

反应条件: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a 4-neck 1 L flask fitted with nechanical agitation, condenser, addition funnel, nitrogen bubbler, and temperature controller was added, in order, THF (450 g), triethylamine (I2.2 g, 0.12 mol), and 4-hydroxy stilbene (19.6 g, 0.10 mol). To this solution at room temperature was slowed added with stirring, via addition funnel, acetic anhdyride (12.3 g, 0.12 mol). When the addition of acetic anhydride was complete, the reaction solution was heated to 60° C. and held at this temperature with stirring for 2 hours. The reaction was cooled to room temperature then THF was removed in vacuo. The resulting residue was diluted with methylene chloride (500 mL) then extracted with 0.1 N HCl (1 ×500 mL), 30% saturated NaHCO3 (1 ×500 mL) and saturated NaCl (1 ×500 mL). The organic layer was dried over anhydrous sodium sulfate then filtered and concentrated in vacuo to give the 4-acetoxy stilbene as a light tan needle-like crystalline powder (22.7 g, 95%). To a 4-neck 1 L flask fitted with nechanical agitation, condenser, addition funnel, nitrogen bubbler, and temperature controller To this solution at room temperature was slowed added with stirring for 2 hours The reaction was cooled to room temperature THF was removed in vacuo The resulting residue was diluted with methylene chloride (500 mL) then extracted with 0.1 N HCl (1 ×500 mL), 30% saturated NaHCO3 (1 ×500 mL) and saturated NaCl (1 ×500 mL) The organic layer was dried over anhydrous sodium sulfate then filtered concentrated in vacuo

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

实验步骤: To a solution of lithium bis(trimethylsilyl)amide (1.0 M/THF, 2 eq. 13.6 mL) in THF (15 mL) was added 2,2-dimethylcyclohexanone (1.88 mL, 13.6 mmol) at −78° C. The reaction was stirred for 15 minutes, and then the intermediate obtained in Step A (3 g, 11.4 mmol) was added dropwise. The reaction was stirred overnight and allowed to warm to room temperature. To the crude product was added acetic add (19.4 mL), ammonium acetate (2.62 g, 34.0 mmol) and copper acetate (5.14 g, 28.3 mmol). The reaction mixture was heated at 100° C. and the THF was removed by distillation. The reaction was heated to 130° C. and allowed to reflux for 24 hours. Ethyl acetate (100 mL) was added and washed with sodium bicarbonate (2×30 mL), water (2×20 mL), brine (2×20 mL), dried with MgSO4, filtered, and concentrated to afford an oil. Flash chromatography (5% ethyl acetate/hexane) afforded a white solid (1.36, 3.7 mmol, 32%). 1H NMR (300 MHz, CDCl3): δ 7.17 (m, 2H), 7.08 (m, 2H), 3.98 (q, J=7.4 Hz, 2H), 3.03 (septet, J=7.0 Hz, 1H), 2.35 (t, J=5.9 Hz, 2H), 1.70 (m, 4H), 1.36 (s, 6H), 1.31 (d, J=4.1 Hz, 6H), 0.965 (t, J=7.4 Hz, 3H). FAB-MS: calculated for (C23H28FNO) 369, found 370 (M+H. mp 124-126° C. Rf=0.6 (50% CH2Cl2/hexane). The reaction was stirred overnight The reaction mixture was heated at 100° C. the THF was removed by distillation The reaction was heated to 130° C. to reflux for 24 hours Ethyl acetate (100 mL) was added washed with sodium bicarbonate (2×30 mL), water (2×20 mL), brine (2×20 mL) dried with MgSO4 filtered concentrated to afford an oil

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

实验步骤: A solution of 3-{benzyl-[6-methyl-3-methylsulfanyl-1-(2,4,6-trichlorophenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-yl]amino}-propanol (80 mg, 0.148 mmol) in 1 ml of methylene chloride was treated with acetic anhydrous (38 mg, 0.37 mmol) and triethyl amine (38 mg, 0.37 mmol) and stirred at room temperature for 15 hours. The mixture was quenched with water and a few drops of dilute HCl and extracted with ethyl acetate. The organic layer was neutralized with aqueous sodium bicarbonate and washed with brine, separated, dried and concentrated to give the title compound as an oil. The oil was purified through silica gel column chromatography using chloroform as eluent to give 57 mg of the title compound as a white glass form. 1H NMR (CDCl3): 2.0(s,3H, 2.03(m,2H), 2.45(s,3H), 2.60(s,3H), 3.74(t,2H), 4.10(t,2H), 5.1(s,2H), 7.2-7.4(m,5H), 7.50(s,2H) ppm. The mixture was quenched with water and a few drops of dilute HCl extracted with ethyl acetate washed with brine separated dried concentrated

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

实验步骤: A solution of 0.02 g (0.04 mmol) of 1-(N-(3-aminopropyl)-7-indolecarbonyl)-3-(R)-(4-(4-fluorophenyl)piperidinylmethyl)-4-(S)-(cyclopropyl)pyrrolidine, 0.025 mL (0.18 mmol) of triethylamine and 0.015 mL (0.16 mmol) of acetic anydride in 2 mL of CH2Cl2 was stirred for 12 h at rt. The reaction mixture was partitioned between EtOAc and water. The organic fractions were washed with sat'd NaCl solution, dried over MgSO4, filtered and the filtrate was concentrated. The residue was purified by chromatography (silica, acetone:hexanes, 1:1) to give 17 mg of the title compound. Mass Spectrum (EI) m/e 545 (M+1). The reaction mixture was partitioned between EtOAc and water The organic fractions were washed with sat'd NaCl solution dried over MgSO4 filtered the filtrate was concentrated The residue was purified by chromatography (silica, acetone:hexanes, 1:1)

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

实验步骤: A solution of 0.02 g (0.04 mmol) of 1-(N-(3-aminopropyl)-7-indolecarbonyl)-3-(R)-(4-(4-fluorophenyl)piperidinylmethyl)-4-(S)-(cyclopropyl)pyrrolidine, 0.025 mL (0.18 mmol) of triethylamine and 0.015 mL (0.16 mmol) of acetic anydride in 2 mL of CH2Cl2 was stirred for 12 h at rt. The reaction mixture was partitioned between EtOAc and water. The organic fractions were washed with sat'd NaCl solution, dried over MgSO4, filtered and the filtrate was concentrated. The residue was purified by chromatography (silica, acetone:hexanes, 1:1) to give 17 mg of the title compound. Mass Spectrum (EI) m/e 545 (M+1). The reaction mixture was partitioned between EtOAc and water The organic fractions were washed with sat'd NaCl solution dried over MgSO4 filtered the filtrate was concentrated The residue was purified by chromatography (silica, acetone:hexanes, 1:1)

反应条件: temp:20.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: N-{1-[Bis(4-chlorophenyl)methyl]azetidin-3-yl}-N-(1-isobutylpiperiod-4yl)methylsulfonamide may be prepared by carrying out the procedure in the following manner: 0.11 cm3 of isobutyraldehyde, 0.057 cm3 of 100% acetic acide and 320 mg of sodium triacetoxyborohydride are added to a solution of 0.47 g of N-{1-[bis(4-chlorophenyl)methyl]azetidin-3-yl}-N-(piperid-4-yl)methylsulfonamide in 20 cm3 of dichloromethane. After stirring for 20 hours at 20° C., the reaction mixture is supplemented with 50 cm3 of a saturated aqueous sodium hydrogen carbonate solution and separated after settling. The organic phase is dried over mangesium sulfate, filtered and concentrated to dryness under reduced pressure (2.7 kPa). The residue is purified by chromatography on a silica gel column (particle size 0.063-0.200 mm, height 20 cm, diameter 2 cm), eluting under an argon pressure of 0.5 bar with a mixture of cyclohexane and ethyl acetate (40/60 by volume) and collecting 30-cm3 fractions. Fractions 3 to 15 are combined and concentrated to dryness under reduced pressure (2.7 kPa). 0.22 g of N-{1-[bis(4-chloro-phenyl)methyl]azetidin-3-yl}-N-(1-isobutylpiperid-4 -yl)methylsulfonamide is obtained in the form of a white foam [1H NMR spectrum (300 MHz, CDCl3, δ in ppm): 0.87 (d, J=7 Hz:6H); from 1.60 to 1.90 (mt:5H); 1.93 (broad t, J=11.5 Hz:2H); 2.03 (d, J=7.5 Hz:2H); 2.84 (s, 3H); 2.89 (broad d, J=11.5 Hz:2H); 3,38 (broad t, J=7 Hz:2H); 3.47 (broad t, J=7 Hz:2H); 3.62 (mt:1H); 4.08 (mt:1H); 4.43 (s:1H); from 7.20 to 7.40 (mt:8H)]. separated The organic phase is dried over mangesium sulfate filtered concentrated to dryness under reduced pressure (2.7 kPa) The residue is purified by chromatography on a silica gel column (particle size 0.063-0.200 mm, height 20 cm, diameter 2 cm) eluting under an argon pressure of 0.5 bar with a mixture of cyclohexane and ethyl acetate (40/60 by volume) collecting 30-cm3 fractions concentrated to dryness under reduced pressure (2.7 kPa)

反应条件: temp:20.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: N-{1-[Bis(4-chlorophenyl)methyl]azetidin-3-yl}-N-(1-isobutylpiperiod-4yl)methylsulfonamide may be prepared by carrying out the procedure in the following manner: 0.11 cm3 of isobutyraldehyde, 0.057 cm3 of 100% acetic acide and 320 mg of sodium triacetoxyborohydride are added to a solution of 0.47 g of N-{1-[bis(4-chlorophenyl)methyl]azetidin-3-yl}-N-(piperid-4-yl)methylsulfonamide in 20 cm3 of dichloromethane. After stirring for 20 hours at 20° C., the reaction mixture is supplemented with 50 cm3 of a saturated aqueous sodium hydrogen carbonate solution and separated after settling. The organic phase is dried over mangesium sulfate, filtered and concentrated to dryness under reduced pressure (2.7 kPa). The residue is purified by chromatography on a silica gel column (particle size 0.063-0.200 mm, height 20 cm, diameter 2 cm), eluting under an argon pressure of 0.5 bar with a mixture of cyclohexane and ethyl acetate (40/60 by volume) and collecting 30-cm3 fractions. Fractions 3 to 15 are combined and concentrated to dryness under reduced pressure (2.7 kPa). 0.22 g of N-{1-[bis(4-chloro-phenyl)methyl]azetidin-3-yl}-N-(1-isobutylpiperid-4 -yl)methylsulfonamide is obtained in the form of a white foam [1H NMR spectrum (300 MHz, CDCl3, δ in ppm): 0.87 (d, J=7 Hz:6H); from 1.60 to 1.90 (mt:5H); 1.93 (broad t, J=11.5 Hz:2H); 2.03 (d, J=7.5 Hz:2H); 2.84 (s, 3H); 2.89 (broad d, J=11.5 Hz:2H); 3,38 (broad t, J=7 Hz:2H); 3.47 (broad t, J=7 Hz:2H); 3.62 (mt:1H); 4.08 (mt:1H); 4.43 (s:1H); from 7.20 to 7.40 (mt:8H)]. separated The organic phase is dried over mangesium sulfate filtered concentrated to dryness under reduced pressure (2.7 kPa) The residue is purified by chromatography on a silica gel column (particle size 0.063-0.200 mm, height 20 cm, diameter 2 cm) eluting under an argon pressure of 0.5 bar with a mixture of cyclohexane and ethyl acetate (40/60 by volume) collecting 30-cm3 fractions concentrated to dryness under reduced pressure (2.7 kPa)

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

实验步骤: A mixture of acetophenone (50 mmol), ethyl cyanoacetate (50 mmol), acetic; acid (1.14 mL), ammonium acetate (400 mg), and benzene (50 mL) was heated to reflux in a Dean-Stark apparatus. After approximately 10 hours, additional ethyl cyanoacetate (50 mmol), acetic acid (1.14 mL), and ammonium acetate (400 mL) are added. After an additional 10 hours, the reaction was cooled to room temperature, diluted with ethyl acetate (30 mL), washed with water (240 mL), brine (40 mL), and dried (Na2S04). After filtering, the extract was concentrated in vacuo and the desired product, as a mixture of E and Z-isomers, was isolated by column chromatography on silica gel, eluting with 5% ethyl acetate in petroleum ether, affording an oil that solidified on standing at room temperature. to reflux in a Dean-Stark apparatus After an additional 10 hours washed with water (240 mL), brine (40 mL) dried (Na2S04) After filtering the extract was concentrated in vacuo the desired product, as a mixture of E and Z-isomers was isolated by column chromatography on silica gel eluting with 5% ethyl acetate in petroleum ether affording an oil that on standing at room temperature

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

实验步骤: A mixture of acetophenone (50 mmol), ethyl cyanoacetate (50 mmol), acetic; acid (1.14 mL), ammonium acetate (400 mg), and benzene (50 mL) was heated to reflux in a Dean-Stark apparatus. After approximately 10 hours, additional ethyl cyanoacetate (50 mmol), acetic acid (1.14 mL), and ammonium acetate (400 mL) are added. After an additional 10 hours, the reaction was cooled to room temperature, diluted with ethyl acetate (30 mL), washed with water (240 mL), brine (40 mL), and dried (Na2S04). After filtering, the extract was concentrated in vacuo and the desired product, as a mixture of E and Z-isomers, was isolated by column chromatography on silica gel, eluting with 5% ethyl acetate in petroleum ether, affording an oil that solidified on standing at room temperature. to reflux in a Dean-Stark apparatus After an additional 10 hours washed with water (240 mL), brine (40 mL) dried (Na2S04) After filtering the extract was concentrated in vacuo the desired product, as a mixture of E and Z-isomers was isolated by column chromatography on silica gel eluting with 5% ethyl acetate in petroleum ether affording an oil that on standing at room temperature