morpholine-4-carboxamide

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:-6.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A nitrogen inerted reactor is charged with the sodium salt of tert-butyl acetoacetate (100 mmol). Anhydrous toluene (71.5 mL) and THF (8.2 mL, 101 mmol) are added, and the resulting solution is cooled under a positive pressure of nitrogen to ca.−10° C. A 10 M hexanes solution of n-BuLi (104 mmol) is added at such a rate as to maintain an internal reaction temperature of <1° C. The resulting solution is stirred an additional 20 to 30 minutes after complete addition as the temperature is allowed to cool to ca. −6° C. Meanwhile, 5-(4-fluorophenyl)-2-isopropyl-1-(3-morpholin-4-yl-3-oxo-propyl)-4-phenyl-1H-pyrrole-3-carboxylic acid phenylamide (25 mmol) is charged to a second nitrogen inerted reactor. Anhydrous THF (50 mL) is added at room temperature, and the resulting slurry is cooled to ca. −10° C. and stirred for 15 to 90 minutes. The solution of dienolate is added to the slurry of morpholine amide at such a rate as to maintain an internal reaction temperature ca. −5° C. Following this addition, the slurry is stirred at ca. −5° C. for >2 hours. Water (35 mL) is added with vigorous agitation at such a rate as to maintain an internal reaction temperature of <0° C. Concentrated 37% hydrochloric acid (19.0 mL, 229 mmol) is added at such a rate as to maintain an internal reaction temperature of ≦0° C. The two-layered reaction mixture is vacuum distilled, removing >50% of the organic solvents. The distillation is stopped and the lower aqueous layer is discarded. Water (55 mL) is added and the vacuum distillation is continued until a majority of the organic solvents are removed. [Note: It is preferable to drain and replace the aqueous layer before initiating the vacuum distillation.] IPA (100 mL) is added followed by water (100 mL). The mixture is stirred for >6 hours, allowing for solidification of the product. The solid is collected via filtration, and the cake is washed with pre-mixed 1:1 IPA:H2O. The resulting solid is dried in vacuo at 35° C. to provide 7-[2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-phenylcarbamoyl-pyrrol-1-yl]-3,5-dioxo-heptanoic acid, tert-butyl ester (14.1 g) as a white solid. This material is carried on to subsequent steps without further purification, or optionally, it can be re-precipitated from toluene. the resulting solution is cooled under a positive pressure of nitrogen to ca −10° C to maintain an internal reaction temperature of <1° C after complete addition as the temperature the resulting slurry is cooled to ca. −10° C. stirred for 15 to 90 minutes to maintain an internal reaction temperature ca. −5° C this addition the slurry is stirred at ca. −5° C. for >2 hours to maintain an internal reaction temperature of <0° C is added at such a rate as to maintain an internal reaction temperature of ≦0° C The two-layered reaction mixture distilled removing >50% of the organic solvents The distillation Water (55 mL) is added the vacuum distillation are removed the vacuum distillation ] IPA (100 mL) is added The mixture is stirred for >6 hours The solid is collected via filtration the cake is washed with pre-mixed 1:1 IPA The resulting solid is dried in vacuo at 35° C.

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A solution of morpholine-4-carbonyl chloride (2.0 g) in methanol (10 mL) and 7 N NH3 in methanol (5 mL) was stirred at 45° C. overnight. The mixture was concentrated, and the solid was dried under vacuum. The mixture was concentrated the solid was dried under vacuum

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A solution of morpholine-4-carbonyl chloride (2.0 g) in methanol (10 mL) and 7 N NH3 in methanol (5 mL) was stirred at 45° C. overnight. The mixture was concentrated to give a solid, which was dried under vacuum. The mixture was concentrated to give a solid, which was dried under vacuum

Conditions: temp:-10.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A nitrogen inerted reactor is charged with the sodium salt of tert-butyl acetoacetate (100 mmol). Anhydrous toluene (71.5 mL) and THF (8.2 mL, 101 mmol) are added, and the resulting solution is cooled under a positive pressure of nitrogen to ca. −10° C. A 10 M hexanes solution of n-BuLi (104 mmol) is added at such a rate as to maintain an internal reaction temperature of ≦1° C. The resulting solution is stirred an additional 20 to 30 minutes after complete addition as the temperature is allowed to cool to ca. −6° C. Meanwhile, 5-(4-fluorophenyl)-2-isopropyl-1-(3-morpholin-4-yl-3-oxo-propyl)-4-phenyl-1H-pyrrole-3-carboxylic acid phenylamide (25 mmol) is charged to a second nitrogen inerted reactor. Anhydrous THF (50 mL) is added at room temperature, and the resulting slurry is cooled to ca. −10° C. and stirred for 15 to 90 minutes. The solution of dienolate is added to the slurry of morpholine amide at such a rate as to maintain an internal reaction temperature ca. −5° C. Following this addition, the slurry is stirred at ca. −5° C for ≧2 hours. Water (35 mL) is added with vigorous agitation at such a rate as to maintain an internal reaction temperature of ≦0° C. Concentrated 37% hydrochloric acid (19.0 mL, 229 mmol) is added at such a rate as to maintain an internal reaction temperature of ≦0° C. The two-layered reaction mixture is vacuum distilled, removing >50% of the organic solvents. The distillation is stopped and the lower aqueous layer is discarded. Water (55 mL) is added and the vacuum distillation is continued until a majority of the organic solvents are removed. [Note: It is preferable to drain and replace the aqueous layer before initiating the vacuum distillation.] IPA (100 mL) is added followed by water (100 mL). The mixture is stirred for ≧6 hours, allowing for solidification of the product. The solid is collected via filtration, and the cake is washed with pre-mixed 1:1 IPA:H20. The resulting solid is dried in vacuo at 35° C. to provide 7-[2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-phenylcarbamoyl-pyrrol-1-yl]-3,5-dioxo-heptanoic acid, tert-butyl ester (14.1 g) as a white solid. This material is carried on to subsequent steps without further purification, or optionally, it can be re-precipitated from toluene. to maintain an internal reaction temperature of ≦1° C after complete addition as the temperature to cool to ca. −6° C the resulting slurry is cooled to ca. −10° C. stirred for 15 to 90 minutes to maintain an internal reaction temperature ca. −5° C this addition the slurry is stirred at ca. −5° C for ≧2 hours to maintain an internal reaction temperature of ≦0° C is added at such a rate as to maintain an internal reaction temperature of ≦0° C The two-layered reaction mixture distilled removing >50% of the organic solvents The distillation Water (55 mL) is added the vacuum distillation are removed the vacuum distillation ] IPA (100 mL) is added The mixture is stirred for ≧6 hours The solid is collected via filtration the cake is washed with pre-mixed 1:1 IPA The resulting solid is dried in vacuo at 35° C.

Conditions: temp:-10.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A nitrogen inerted reactor is charged with the sodium salt of tert-butyl acetoacetate (100 mmol). Anhydrous toluene (71.5 mL) and THF (8.2 mL, 101 mmol) are added, and the resulting solution is cooled under a positive pressure of nitrogen to ca. −10° C. A 10 M hexanes solution of n-BuLi (104 mmol) is added at such a rate as to maintain an internal reaction temperature of ≦1° C. The resulting solution is stirred an additional 20 to 30 minutes after complete addition as the temperature is allowed to cool to ca. −6° C. Meanwhile, 5-(4-fluorophenyl)-2-isopropyl-1-(3-morpholin-4-yl-3-oxo-propyl)-4-phenyl-1H-pyrrole-3-carboxylic acid phenylamide (25 mmol) is charged to a second nitrogen inerted reactor. Anhydrous THF (50 mL) is added at room temperature, and the resulting slurry is cooled to ca. −10° C. and stirred for 15 to 90 minutes. The solution of dienolate is added to the slurry of morpholine amide at such a rate as to maintain an internal reaction temperature ca. −5° C. Following this addition, the slurry is stirred at ca. −5° C for ≧2 hours. Water (35 mL) is added with vigorous agitation at such a rate as to maintain an internal reaction temperature of ≦0° C. Concentrated 37% hydrochloric acid (19.0 mL, 229 mmol) is added at such a rate as to maintain an internal reaction temperature of ≦0° C. The two-layered reaction mixture is vacuum distilled, removing >50% of the organic solvents. The distillation is stopped and the lower aqueous layer is discarded. Water (55 mL) is added and the vacuum distillation is continued until a majority of the organic solvents are removed. [Note: It is preferable to drain and replace the aqueous layer before initiating the vacuum distillation.] IPA (100 mL) is added followed by water (100 mL). The mixture is stirred for ≧6 hours, allowing for solidification of the product. The solid is collected via filtration, and the cake is washed with pre-mixed 1:1 IPA:H20. The resulting solid is dried in vacuo at 35° C. to provide 7-[2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-phenylcarbamoyl-pyrrol-1-yl]-3,5-dioxo-heptanoic acid, tert-butyl ester (14.1 g) as a white solid. This material is carried on to subsequent steps without further purification, or optionally, it can be re-precipitated from toluene. to maintain an internal reaction temperature of ≦1° C after complete addition as the temperature to cool to ca. −6° C the resulting slurry is cooled to ca. −10° C. stirred for 15 to 90 minutes to maintain an internal reaction temperature ca. −5° C this addition the slurry is stirred at ca. −5° C for ≧2 hours to maintain an internal reaction temperature of ≦0° C is added at such a rate as to maintain an internal reaction temperature of ≦0° C The two-layered reaction mixture distilled removing >50% of the organic solvents The distillation Water (55 mL) is added the vacuum distillation are removed the vacuum distillation ] IPA (100 mL) is added The mixture is stirred for ≧6 hours The solid is collected via filtration the cake is washed with pre-mixed 1:1 IPA The resulting solid is dried in vacuo at 35° C.

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A solution of 100 mg (0.296 mmol) of carboxylic acid derived from D-phenylalanine in 10 mL of THF at -8° C. was treated with 39.0 mg (0.385 mmol) of N-methylmorpholine followed by 54.7 mg (0.400 mmol) of isobutylchloroformate. After stirring for 5 min 34.8 mg (0.400 mmol) of morpholine was added and the reaction mixture allowed to warm to room temperature. After 15 min at room temperature, 50 mL of Et2O was added and the mixture dried over MgSO4, filtered, and concentrated under reduced pressure to afford a residue which was chromatographed (silica, gradient elution 30→100%: EtOAc/hexanes) to provide 112.8 mg (94% yield) of the morpholino amide derived from D-phenylalanine: [a]D24 -95° (c 0.85, CHCl3) ; IR (CHCl3) 3495 (w), 3000 (s), 2980 (w), 1745 (m), 1700 (s), 1635 (m), 1495 (s), 1445 (m), 1230 (m), 1165 (m), 1115 (m), 1075 (w), 1045 (m), 1025 (w) cm-1 ; 1H NMR (500 MHz, CDCl3) d 7.27-7.22 (m, 3 H), 7.04-7.02 (m, 2 H), 5.71 (s, 1 H), 3.91 (d, J=15.3 Hz, 1 H), 3.75 (s, 3 H), 3.69-3.57 (m, 7 H), 3.50-3.46 (m, 2 H), 3.01 (d, J=13.3 Hz, 1 H), 2.91 (d, J=15.5 Hz, 1 H), 1.46 (s, 9 H); 13C NMR (62.5 MHz, CDCl3) d 172.37, 168.08, 154.19, 135.20, 129.57 (2C), 127.97 (2C), 126.88, 79.18, 66.68, 66.54, 62.44, 52.41, 46.11, 41.81, 40.92, 38.12, 28.20 (3C); high resolution mass spectrum (CI, methane) m/z 407.2123 [(M+H)+ ; calculated for C21H31N2O6 : 407.2182]. was added the mixture dried over MgSO4 filtered concentrated under reduced pressure to afford a residue which was chromatographed (silica, gradient elution 30→100%: EtOAc/hexanes)

Conditions: temp:20.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of (3aS,5R,6S,6aS)-6-hydroxy-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxole-5-carboxylic acid (5.0 g, 24.5 mmol) in THF (100 ML, 20×) was added TBTU (11.8 g, 1.5 equiv), N-methylmorpholine (NMM, 4.1 mL, 1.5 equiv) and the mixture was stirred at 20° C. for 30 min. Morpholine (3.2 mL, 1.5 equiv) was then added, and the reaction mixture was stirred at 20° C. for an additional 6h. The solid was filtered off by filtration and the cake was washed with THF (10 mL, 2× ×2). The organic solution was concentrated under vacuum and the residue was purified by silica gel column chromatography (hexanes:EtOAc, from 1:4 to 4:1) to afford 4.3 g of the desired morpholine amide (64%) as a white solid. 1H NMR (CDCl3), δ 6.02 (d, J=3.2 Hz, 1H), 5.11 (br s, 1H), 4.62 (d, J=3.2 Hz, 1H), 4.58 (d, J=3.2 Hz, 1H), 3.9-3.5 (m, 8H), 1.51 (s, 3H), 1.35 (s, 3H). the reaction mixture was stirred at 20° C. for an additional 6h The solid was filtered off by filtration the cake was washed with THF (10 mL, 2× ×2) The organic solution was concentrated under vacuum the residue was purified by silica gel column chromatography (hexanes:EtOAc, from 1:4 to 4:1)

Conditions: temp:20.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of (3aS,5R,6S,6aS)-6-hydroxy-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxole-5-carboxylic acid (5.0 g, 24.5 mmol) in THF (100 ML, 20×) was added TBTU (11.8 g, 1.5 equiv), N-methylmorpholine (NMM, 4.1 mL, 1.5 equiv) and the mixture was stirred at 20° C. for 30 min. Morpholine (3.2 mL, 1.5 equiv) was then added, and the reaction mixture was stirred at 20° C. for an additional 6h. The solid was filtered off by filtration and the cake was washed with THF (10 mL, 2× ×2). The organic solution was concentrated under vacuum and the residue was purified by silica gel column chromatography (hexanes:EtOAc, from 1:4 to 4:1) to afford 4.3 g of the desired morpholine amide (64%) as a white solid. 1H NMR (CDCl3), δ 6.02 (d, J=3.2 Hz, 1H), 5.11 (br s, 1H), 4.62 (d, J=3.2 Hz, 1H), 4.58 (d, J=3.2 Hz, 1H), 3.9-3.5 (m, 8H), 1.51 (s, 3H), 1.35 (s, 3H). the reaction mixture was stirred at 20° C. for an additional 6h The solid was filtered off by filtration the cake was washed with THF (10 mL, 2× ×2) The organic solution was concentrated under vacuum the residue was purified by silica gel column chromatography (hexanes:EtOAc, from 1:4 to 4:1)

Conditions: temp:-6.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A nitrogen inerted reactor is charged with the sodium salt of tert-butyl acetoacetate (100 mmol). Anhydrous toluene (71.5 mL) and THF (8.2 mL, 101 mmol) are added, and the resulting solution is cooled under a positive pressure of nitrogen to ca.−10° C. A 10 M hexanes solution of n-BuLi (104 mmol) is added at such a rate as to maintain an internal reaction temperature of ≦1° C. The resulting solution is stirred an additional 20 to 30 minutes after complete addition as the temperature is allowed to cool to ca. −6° C. Meanwhile, 5-(4-fluorophenyl)-2-isopropyl-1-(3-morpholin-4-yl-3-oxo-propyl)-4-phenyl-1H-pyrrole-3-carboxylic acid phenylamide (25 mmol) is charged to a second nitrogen inerted reactor. Anhydrous THF (50 mL) is added at room temperature, and the resulting slurry is cooled to ca. −10° C. and stirred for 15 to 90 minutes. The solution of dienolate is added to the slurry of morpholine amide at such a rate as to maintain an internal reaction temperature ca. −5° C. Following this addition, the slurry is stirred at ca. −5° C. for ≧2 hours. Water (35 mL) is added with vigorous agitation at such a rate as to maintain an internal reaction temperature of ≦0° C. Concentrated 37% hydrochloric acid (19.0 mL, 229 mmol) is added at such a rate as to maintain an internal reaction temperature of ≦0° C. The two-layered reaction mixture is vacuum distilled, removing >50% of the organic solvents. The distillation is stopped and the lower aqueous layer is discarded. Water (55 mL) is added and the vacuum distillation is continued until a majority of the organic solvents are removed. [Note: It is preferable to drain and replace the aqueous layer before initiating the vacuum distillation.] IPA (100 mL) is added followed by water (100 mL). The mixture is stirred for ≧6 hours, allowing for solidification of the product. The solid is collected via filtration, and the cake is washed with pre-mixed 1:1 IPA:H2O. The resulting solid is dried in vacuo at 35° C. to provide 7-[2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-phenylcarbamoyl-pyrrol-1-yl]-3,5-dioxo-heptanoic acid, tert-butyl ester (14.1 g) as a white solid. This material is carried on to subsequent steps without further purification, or optionally, it can be re-precipitated from toluene. the resulting solution is cooled under a positive pressure of nitrogen to ca −10° C to maintain an internal reaction temperature of ≦1° C after complete addition as the temperature the resulting slurry is cooled to ca. −10° C. stirred for 15 to 90 minutes to maintain an internal reaction temperature ca. −5° C this addition the slurry is stirred at ca. −5° C. for ≧2 hours to maintain an internal reaction temperature of ≦0° C is added at such a rate as to maintain an internal reaction temperature of ≦0° C The two-layered reaction mixture distilled removing >50% of the organic solvents The distillation Water (55 mL) is added the vacuum distillation are removed the vacuum distillation ] IPA (100 mL) is added The mixture is stirred for ≧6 hours The solid is collected via filtration the cake is washed with pre-mixed 1:1 IPA The resulting solid is dried in vacuo at 35° C.

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: N-[6-[[[(1,1-dimethylethoxy)carbonyl]amino]methyl]-5-methyl-4-oxo-4H-3,1-benzoxazin-2-yl]-O-methyl-L-tyrosine, morpholineamide;