69097-20-7

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

Procedure: The reagent 1,1,2-tris-trimethylsilyloxyethylene (80) and its use for the conversion of acid chlorides to hydroxyketone (for example 96 to 98 and 90 to 92) are claimed in this invention. The reagent preparation is described hereinbelow in Flowsheet M. The reaction of glycolic acid with 1,1,1,3,3,3-hexamethyldisilazane and trimethylsilylchoride in pyridine gives bis-trimethylsilated glycolic acid (113). Addition of (113) to a tetrahydrofuran solution of one equivalent of lithium 1,1,1,3,3,3-hexamethyldisilazane amide at -78° C. generates a lithium enolate which is trapped with trimethylsilylchloride to produce the desired reagent (80). ##STR97##

Conditions: temp:95.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 134 g of 3-phenyl-2(S)-phthalimidopropionyl chloride and 269.7 g of tris(trimethylsilyloxy)ethylene was stirred at 95° C. for 5 hours. A further 54 g of tris(trimethylsilyloxy)ethylene were added and the mixture was stirred at 95° C. for a further 1.5 hours. The cooled reaction mixture was then treated with 435 ml of dioxan and 174 ml of 0.6N hydrochloric acid and the resulting mixture was heated to 85° C. for 30 minutes. The cooled mixture was saturated with sodium chloride and then. extracted with diethyl ether. The ethereal solution was washed with aqueous sodium bicarbonate solution and evaporated. The resulting pale yellow solid was crystallized from ethyl acetate/n-hexane to give 103 g of N-[1(S)-benzyl-3-hydroxy-2-oxopropyl]phthalimide as a white solid, MS: m/e 310 [M+H]+. the mixture was stirred at 95° C. for a further 1.5 hours The cooled reaction mixture the resulting mixture was heated to 85° C. for 30 minutes extracted with diethyl ether The ethereal solution was washed with aqueous sodium bicarbonate solution evaporated The resulting pale yellow solid was crystallized from ethyl acetate/n-hexane

Conditions: temp:95.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 134 g of 3-phenyl-2(S)-phthalimido-propionyl chloride and 269.7 g of tris(trimethylsilyloxy)-ethylene was stirred at 95° C. for 5 hours. A further 54 g of tris(trimethylsilyloxy)ethylene were added and the mixture was stirred at 95° C. for a further 1.5 hours. The cooled reaction mixture was then treated with 435 ml of dioxan and 174 ml of 0.6N hydrochloric acid and the resulting mixture was heated to 85° C. for 30 minutes. The cooled mixture was saturated with sodium chloride and then extracted with diethyl ether. The ethereal solution was washed with aqueous sodium bicarbonate solution and evaporated. The resulting pale yellow solid was crystallized from ethyl acetate/n-hexane to give 103 g of N-[1(S)-benzyl-3-hydroxy-2-oxopropyl]phthalimide as a white solid, MS: m/e 310 [M+H]+. the mixture was stirred at 95° C. for a further 1.5 hours The cooled reaction mixture the resulting mixture was heated to 85° C. for 30 minutes extracted with diethyl ether The ethereal solution was washed with aqueous sodium bicarbonate solution evaporated The resulting pale yellow solid was crystallized from ethyl acetate/n-hexane

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

Procedure: Oxalyl chloride (0.063 ml, 0.715 mmol) was added to a solution of 2-((3R,5R,6S)-5-(3-chlorophenyl)-6-(4-chlorophenyl)-1-((S)-1-cyclopropyl-2-(ethylsulfonyl)ethyl)-3-methyl-2-oxopiperidin-3-yl)acetic acid (Example 349, 0.316 g, 0.572 mmol) in dichloromethane (1.9 ml). The reaction was stirred for 3 h at room temperature. The solvents were removed in vacuo. To the solids was added tris(trimethylsiloxy)ethylene (0.42 ml, 1.26 mmol) and the reaction was stirred at 90° C. After 2 h, the reaction was cooled, charged with THF (1 mL) and HCl (1.4 M, 0.982 ml, 1.375 mmol), and brought to reflux for 30 min. After cooling, the reaction was poured into water (20 mL) and extracted with dichloromethane (3×20 mL). The combined organics were dried over sodium sulfate and concentrated in vacuo. Silica gel chromatography (step gradient elution 1 to 5% 2 M ammonia in MeOH in dichloromethane) afforded the title compound. The solvents were removed in vacuo the reaction was stirred at 90° C After 2 h the reaction was cooled to reflux for 30 min After cooling extracted with dichloromethane (3×20 mL) The combined organics were dried over sodium sulfate concentrated in vacuo Silica gel chromatography (step gradient elution 1 to 5% 2 M ammonia in MeOH in dichloromethane)

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

Procedure: Oxalyl chloride (0.063 ml, 0.715 mmol) was added to a solution of 2-((3R,5R,6S)-5-(3-chlorophenyl)-6-(4-chlorophenyl)-1-((S)-1-cyclopropyl-2-(ethylsulfonyl)ethyl)-3-methyl-2-oxopiperidin-3-yl)acetic acid (Example 349, 0.316 g, 0.572 mmol) in dichloromethane (1.9 ml). The reaction was stirred for 3 h at room temperature. The solvents were removed in vacuo. To the solids was added tris(trimethylsiloxy)ethylene (0.42 ml, 1.26 mmol) and the reaction was stirred at 90° C. After 2 h, the reaction was cooled, charged with THF (1 mL) and HCl (1.4 M, 0.982 ml, 1.375 mmol), and brought to reflux for 30 min. After cooling, the reaction was poured into water (20 mL) and extracted with dichloromethane (3×20 mL). The combined organics were dried over sodium sulfate and concentrated in vacuo. Silica gel chromatography (step gradient elution 1 to 5% 2 M ammonia in MeOH in dichloromethane) afforded the title compound. The solvents were removed in vacuo the reaction was stirred at 90° C After 2 h the reaction was cooled to reflux for 30 min After cooling extracted with dichloromethane (3×20 mL) The combined organics were dried over sodium sulfate concentrated in vacuo Silica gel chromatography (step gradient elution 1 to 5% 2 M ammonia in MeOH in dichloromethane)

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

Procedure: Oxalyl chloride (0.063 ml, 0.715 mmol) was added to a solution of 2-((3R,5R,6S)-5-(3-chlorophenyl)-6-(4-chlorophenyl)-1-((S)-1-cyclopropyl-2-(ethylsulfonyl)ethyl)-3-methyl-2-oxopiperidin-3-yl)acetic acid (Example 349, 0.316 g, 0.572 mmol) in dichloromethane (1.9 ml). The reaction was stirred for 3 h at room temperature. The solvents were removed in vacuo. To the solids was added tris(trimethylsiloxy)ethylene (0.42 ml, 1.26 mmol) and the reaction was stirred at 90° C. After 2 h, the reaction was cooled, charged with THF (1 mL) and HCl (1.4 M, 0.982 ml, 1.375 mmol), and brought to reflux for 30 min. After cooling, the reaction was poured into water (20 mL) and extracted with dichloromethane (3×20 mL). The combined organics were dried over sodium sulfate and concentrated in vacuo. Silica gel chromatography (step gradient elution 1 to 5% 2 M ammonia in MeOH in dichloromethane) afforded the title compound. The solvents were removed in vacuo the reaction was stirred at 90° C After 2 h the reaction was cooled to reflux for 30 min After cooling extracted with dichloromethane (3×20 mL) The combined organics were dried over sodium sulfate concentrated in vacuo Silica gel chromatography (step gradient elution 1 to 5% 2 M ammonia in MeOH in dichloromethane)

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

Procedure: A dry vessel was charged with 7.5 kg adamantyl bromide. Methylene chloride (22.5 liters) was then added at room temperature to dissolve the solid adamantane bromide. Dissolving is endothermic so before the next step, the temperature of the reaction mixture was allowed to return to 20° C. The reaction mixture was then charged with zinc chloride (1.05 kg) and stirred for approximately 5 minutes at 20° C. The reaction mixture was then charged with tris(trimethylsiloxy) -ethylene (15.3 kg) while maintaining the reaction temperature between 20 to 25° C. and the resulting mixture was stirred for 2 hours. Following this mixing, tris(trimethylsiloxy)-ethylene (5.10 kg) was added. During this addition, the temperature was maintained below 30° C. The reaction was maintained for another 12 to 15 hours at 20 to 25° C., at which time the reaction mixture was diluted with methylene chloride (15 liters) and cooled to 0 to 5° C. The reaction mixture was then treated, beginning in dropwise fashion, with half-saturated NH4Cl solution. During addition, the temperature was kept below 30° C. A thick suspension was obtained. To this suspension was added ethyl acetate (93.75 liters). The mixture was stirred vigorously for 15 minutes and the organic and aqueous phases were split. The organic layer was stored and the aqueous layer was washed twice with ethyl acetate (18.75 liters in each wash). The ethyl acetate washes and organic layer were then combined and washed with water (37.5 liters) followed by water half saturated with brine (37.5 liters). The organic layer was separated again and evaporated to form crystals. A solvent exchange to heptane was then performed at a final volume of 22.5 liters. The resulting suspension was cooled to 5 to 10° C. for 1 hour and the product α-hydroxytricyclo[3.3.1.13,7]decane-1-acetic acid (Formula B) was obtained via filtration. Yield of α-hydroxytricyclo[3.3.1.13,7]decane-1-acetic acid (Formula B) was 6.96 kg (33.11 mol, 95%). Dissolving to return to 20° C while maintaining the reaction temperature between 20 to 25° C. the resulting mixture was stirred for 2 hours was added During this addition the temperature was maintained below 30° C The reaction was maintained for another 12 to 15 hours at 20 to 25° C., at which time the reaction mixture cooled to 0 to 5° C The reaction mixture was then treated During addition was kept below 30° C A thick suspension was obtained The mixture was stirred vigorously for 15 minutes the organic and aqueous phases were split the aqueous layer was washed twice with ethyl acetate (18.75 liters in each wash) washed with water (37.5 liters) The organic layer was separated again evaporated to form crystals The resulting suspension was cooled to 5 to 10° C. for 1 hour

Conditions: temp:95.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 134 g of 3-phenyl-2(S)-phthalimidopropionyl chloride and 269.7 g of tris(trimethylsilyloxy)ethylene was stirred at 95° C. for 5 hours. A further 54 g of tris(trimethylsilyloxy)ethylene were added and the mixture was stirred at 95° C. for a further 1.5 hours. The cooled reaction mixture was then treated with 435 ml of dioxan and 174 ml of 0.6N hydrochloric acid and the resulting mixture was heated to 85° C. for 30 minutes. The cooled mixture was saturated with sodium chloride and then extracted with diethyl ether. The ethereal solution was washed with aqueous sodium bicarbonate solution and evaporated. The resulting pale yellow solid was crystallized from ethyl acetate/n-hexane to give 103 g of N-[1(S)-benzyl-3-hydroxy-2-oxopropyl]phthalimide as a white solid, MS: m/e 310 [M+H]+. the mixture was stirred at 95° C. for a further 1.5 hours The cooled reaction mixture the resulting mixture was heated to 85° C. for 30 minutes extracted with diethyl ether The ethereal solution was washed with aqueous sodium bicarbonate solution evaporated The resulting pale yellow solid was crystallized from ethyl acetate/n-hexane

Conditions: temp:95.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 134 g of 3-phenyl-2(S)-phthalimidopropionyl chloride and 269.7 g of tris(trimethylsilyloxy)ethylene was stirred at 95° C. for 5 hours. A further 54 g of tris(trimethylsilyloxy)ethylene were added and the mixture was stirred at 95° C. for a further 1.5 hours. The cooled reaction mixture was then treated with 435 ml of dioxan and 174 ml of 0.6N hydrochloric acid and the resulting mixture was heated to 85° C. for 30 minutes. The cooled mixture was saturated with sodium chloride and then extracted with diethyl ether. The ethereal solution was washed with aqueous sodium bicarbonate solution and evaporated. The resulting pale yellow solid was crystallized from ethyl acetate/n-hexane to give 103 g of N-[1(S)-benzyl-3-hydroxy-2-oxopropyl]phthalimide as a white solid, MS: m/e 310 [M+H]+. the mixture was stirred at 95° C. for a further 1.5 hours The cooled reaction mixture the resulting mixture was heated to 85° C. for 30 minutes extracted with diethyl ether The ethereal solution was washed with aqueous sodium bicarbonate solution evaporated The resulting pale yellow solid was crystallized from ethyl acetate/n-hexane

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

Procedure: The reagent 1,1,2-tris-trimethylsilyloxyethylene (80) and its use for the conversion of acid chlorides to hydroxyketone (for example 96 to 98 and 90 to 92) are claimed in this invention. The reagent preparation is described hereinbelow in Flowsheet M. The reaction of glycolic acid with 1,1,1,3,3,3-hexamethyldisilazane and trimethylsilylchoride in pyridine gives bis-trimethylsilated glycolic acid (113). Addition of (113) to a tetrahydrofuran solution of one equivalent of lithium 1,1,1,3,3,3-hexamethyldisilazane amide at -78° C. generates a lithium enolate which is trapped with trimethylsilylchloride to produce the desired reagent (80). ##STR97##

Conditions: temp:95.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 134 g of 3-phenyl-2(S)-phthalimidopropionyl chloride and 269.7 g of tris(trimethylsilyloxy)ethylene was stirred at 95° C. for 5 hours. A further 54 g of tris(trimethylsilyloxy)ethylene were added and the mixture was stirred at 95° C. for a further 1.5 hours. The cooled reaction mixture was then treated with 435 ml of dioxan and 174 ml of 0.6N hydrochloric acid and the resulting mixture was heated to 85° C. for 30 minutes. The cooled mixture was saturated with sodium chloride and then. extracted with diethyl ether. The ethereal solution was washed with aqueous sodium bicarbonate solution and evaporated. The resulting pale yellow solid was crystallized from ethyl acetate/n-hexane to give 103 g of N-[1(S)-benzyl-3-hydroxy-2-oxopropyl]phthalimide as a white solid, MS: m/e 310 [M+H]+. the mixture was stirred at 95° C. for a further 1.5 hours The cooled reaction mixture the resulting mixture was heated to 85° C. for 30 minutes extracted with diethyl ether The ethereal solution was washed with aqueous sodium bicarbonate solution evaporated The resulting pale yellow solid was crystallized from ethyl acetate/n-hexane

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

Procedure: The reagent 1,1,2-tris-trimethylsilyloxyethylene (80) and its use for the conversion of acid chlorides to hydroxyketone (for example 96 to 98 and 90 to 92) are claimed in this invention. The reagent preparation is described hereinbelow in Flowsheet M. The reaction of glycolic acid with 1,1,1,3,3,3-hexamethyldisilazane and trimethylsilylchloride in pyridine gives bis-trimethylsilated glycolic acid (113). Addition of (113) to a tetrahydrofuran solution of one equivalent of lithium 1,1,1,3,3,3-hexamethyldisilazane amide at -78° C. generates a lithium enolate which is trapped with trimethylsilylchloride to produce the desired reagent (80). ##STR119##