(R)-(1-异丁基吡咯烷-2-基)甲胺

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

实验步骤: The title compound was prepared by a similar method to preparation 42 from benzyl 2-[3,5-dichloro-2-methyl-6-oxo-1(6H)-pyrazinyl]acetate (preperation 170 and [(2R)-1-isobutylpyrrolidinyl]methanamine [see preparation 60]. The crude product was purified by column chromatography on silica gel using ethyl acetate as the eluant, to afford the product as a yellow oil, (94%). The crude product was purified by column chromatography on silica gel

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

实验步骤: The title compound was prepared by a similar method to preparation 42 from benzyl 2-[3,5-dichloro-2-methyl-6-oxo-1(6H)-pyrazinyl]acetate (preperation 170 and [(2R)-1-isobutylpyrrolidinyl]methanamine [see preparation 60]. The crude product was purified by column chromatography on silica gel using ethyl acetate as the eluant, to afford the product as a yellow oil, (94%). The crude product was purified by column chromatography on silica gel

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

实验步骤: Lithium aluminum hydride [1.0mol soln. in tetrahydrofuran] (11.52 ml, 11.52 mmol) was added to a solution of (2R)-1-isobutyl-2-pyrrolidinecarboxamide (1.3 g, 7.68 mmol) [see preparation 59] in tetrahydrofuran (5 ml) @0° C. The reaction mixture was stirred for 10 mins and then heated to reflux for 6 hrs. Water (0.5 ml) was added to the cooled mixture followed by sodium hydroxide (1.5 ml) and water (1.5 ml). Tetrahydrofuran (10 ml) was added and the mixture was stirred at room temperature for 1 hr. The aluminum salts were removed by filtration and washed well with diethyl ether. The filtrate was then evaporated under reduced pressure to afford the title compound as a white solid, 705 mg, (58%). heated to reflux for 6 hrs the mixture was stirred at room temperature for 1 hr The aluminum salts were removed by filtration washed well with diethyl ether The filtrate was then evaporated under reduced pressure

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

实验步骤: The title compound was prepared by a similar method to preparation 42 from benzyl 2-[3,5-dichloro-2-methyl-6-oxo-1(6H)-pyrazinyl]acetate (preperation 170 and [(2R)-1-isobutylpyrrolidinyl]methanamine [see preparation 60]. The crude product was purified by column chromatography on silica gel using ethyl acetate as the eluant, to afford the product as a yellow oil, (94%). The crude product was purified by column chromatography on silica gel

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

实验步骤: The title compound was prepared by a similar method to preparation 42 from benzyl 2-[3,5-dichloro-2-methyl-6-oxo-1(6H)-pyrazinyl]acetate (preperation 170 and [(2R)-1-isobutylpyrrolidinyl]methanamine [see preparation 60]. The crude product was purified by column chromatography on silica gel using ethyl acetate as the eluant, to afford the product as a yellow oil, (94%). The crude product was purified by column chromatography on silica gel

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

实验步骤: Lithium aluminium hydride [1.0 mol soln. in tetrahydrofuran] (11.52 ml, 11.52 mmol) was added to a solution of (2R)-1-isobutyl-2-pyrrolidinecarboxamide (1.3 g, 7.68 mmol) [see preparation 59] in tetrahydrofuran (5 ml) @0° C. The reaction mixture was stirred for 10 mins and then heated to reflux for 6 hrs. Water (0.5 ml) was added to the cooled mixture followed by sodium hydroxide (1.5 ml) and water (1.5 ml). Tetrahydrofuran (10 ml) was added and the mixture was stirred at room temperature for 1 hr. The aluminium salts were removed by filtration and washed well with diethyl ether. The filtrate was then evaporated under reduced pressure to afford the title compound as a white solid, 705 mg, (58%). heated to reflux for 6 hrs the mixture was stirred at room temperature for 1 hr The aluminium salts were removed by filtration washed well with diethyl ether The filtrate was then evaporated under reduced pressure

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

实验步骤: The title compound was prepared by a similar method to preparation 42 from benzyl 2-[3,5-dichloro-2-methyl-6-oxo-1(6H)-pyrazinyl]acetate (preperation 170 and [(2R)-1-isobutylpyrrolidinyl]methanamine [see preparation 60]. The crude product was purified by column chromatography on silica gel using ethyl acetate as the eluant, to afford the product as a yellow oil, (94%). The crude product was purified by column chromatography on silica gel

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

实验步骤: Lithium aluminum hydride [1.0mol soln. in tetrahydrofuran] (11.52 ml, 11.52 mmol) was added to a solution of (2R)-1-isobutyl-2-pyrrolidinecarboxamide (1.3 g, 7.68 mmol) [see preparation 59] in tetrahydrofuran (5 ml) @0° C. The reaction mixture was stirred for 10 mins and then heated to reflux for 6 hrs. Water (0.5 ml) was added to the cooled mixture followed by sodium hydroxide (1.5 ml) and water (1.5 ml). Tetrahydrofuran (10 ml) was added and the mixture was stirred at room temperature for 1 hr. The aluminum salts were removed by filtration and washed well with diethyl ether. The filtrate was then evaporated under reduced pressure to afford the title compound as a white solid, 705 mg, (58%). heated to reflux for 6 hrs the mixture was stirred at room temperature for 1 hr The aluminum salts were removed by filtration washed well with diethyl ether The filtrate was then evaporated under reduced pressure