(5S)-5-amino-1-methylpiperidin-2-one

Conditions: temp:130.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 0.27 g (II) are placed in 3 ml dioxane, then 0.45 ml diisopropylethylamine and 0.25 g (S)-5-amino-1-methylpiperidin-2-one are added. The reaction mixture is heated to 130° C. until there is no further reaction, then cooled and evaporated down. The product is extracted with dichloromethane and purified by chromatography (preparative HPLC, method B). 0.26 g (III-5) are obtained in the form of a solid. Analytical HPLC-MS (method A): RT=1.06 min. no further reaction cooled evaporated down The product is extracted with dichloromethane purified by chromatography (preparative HPLC, method B) 0.26 g (III-5) are obtained in the form of a solid

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

Procedure: 0.450 g (S)-5-dibenzylamino-1-methylpiperidin-2-one are suspended in 25 ml of methanol and hydrogenated with 0.150 g Pd/C 10% at a pressure of 3 bar and a temperature of 60° C. After 16 hours the catalyst is eliminated by suction filtering and the filtrate is evaporated to dryness. 0.190 g of the product are obtained as an oil. 1H NMR (400 MHz, DMSO): 2.76 (3H, s). a temperature of 60° C filtering the filtrate is evaporated to dryness

Conditions: temp:130.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 0.27 g (II) are placed in 3 ml dioxane, then 0.45 ml diisopropylethylamine and 0.25 g (S)-5-amino-1-methylpiperidin-2-one are added. The reaction mixture is heated to 130° C. until there is no further reaction, cooled and then evaporated down. The product is extracted with dichloromethane and purified by chromatography (preparative HPLC, method B). 0.26 g (III-5) are obtained as a solid. Analytical HPLC-MS (method A): RT=1.06 min. no further reaction cooled evaporated down The product is extracted with dichloromethane purified by chromatography (preparative HPLC, method B) 0.26 g (III-5) are obtained as a solid

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

Procedure: 0.450 g (S)-5-dibenzylamino-1-methylpiperidin-2-one are suspended in 25 ml of methanol and hydrogenated with 0.150 g Pd/C 10% at a pressure of 3 bar and a temperature of 60° C. After 16 hours the catalyst is suction filtered and the filtrate is evaporated to dryness. 0.190 g of the product are obtained as an oil. 1H NMR (400 MHz, DMSO): 2.76 (3H, s). a temperature of 60° C suction filtered the filtrate is evaporated to dryness

Conditions: temp:130.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 0.27 g (II) are placed in 3 ml dioxane, then 0.45 ml diisopropylethylamine and 0.25 g (S)-5-amino-1-methylpiperidin-2-one are added. The reaction mixture is heated to 130° C. until no further reaction takes place, then cooled and evaporated down. The product is extracted with dichloromethane and purified by chromatography (preparative HPLC, method B). 0.26 g (III-5) are obtained as a solid. Analytical HPLC-MS (method A): RT=1.06 min. cooled evaporated down The product is extracted with dichloromethane purified by chromatography (preparative HPLC, method B) 0.26 g (III-5) are obtained as a solid

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

Procedure: 0.450 g (S)-5-dibenzylamino-1-methylpiperidin-2-one are suspended in 25 ml of methanol and hydrogenated with 0.150 g Pd/C 10% at a pressure of 3 bar and a temperature of 60° C. After 16 hours the catalyst is suction filtered and the filtrate is evaporated to dryness. 0.190 g of the product are obtained as an oil. 1H NMR (400 MHz, DMSO): 2.76 (3H, s). a temperature of 60° C suction filtered the filtrate is evaporated to dryness

Conditions: temp:130.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 0.27 g (II) are placed in 3 ml dioxane, then 0.45 ml diisopropylethylamine and 0.25 g (S)-5-amino-1-methylpiperidin-2-one are added. The reaction mixture is heated to 130° C. until no further reaction takes place, then cooled and evaporated down. The product is extracted with dichloromethane and purified by chromatography (preparative HPLC, method B). 0.26 g (III-5) are obtained as a solid. Analytical HPLC-MS (method A): RT=1.06 min. cooled evaporated down The product is extracted with dichloromethane purified by chromatography (preparative HPLC, method B) 0.26 g (III-5) are obtained as a solid

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

Procedure: 0.450 g (S)-5-dibenzylamino-1-methylpiperidin-2-one are suspended in 25 ml of methanol and hydrogenated with 0.150 g Pd/C 10% at a pressure of 3 bar and a temperature of 60° C. After 16 hours the catalyst is suction filtered and the filtrate is evaporated to dryness. 0.190 g of the product are obtained as an oil. 1H NMR (400 MHz, DMSO): 2.76 (3H, s). a temperature of 60° C suction filtered the filtrate is evaporated to dryness

Conditions: temp:130.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 0.27 g (II) are placed in 3 ml dioxane, then 0.45 ml diisopropylethylamine are added followed by 0.25 g (S)-5-amino-1-methylpiperidin-2-one. The reaction mixture is heated to 130° C. until there is no further reaction, and after cooling evaporated down. The product is extracted with dichloromethane and purified by chromatography (preparative HPLC, method A). 0.26 g (III-2) are obtained as a solid. Analytical HPLC-MS (method A): RT=1.06 min. no further reaction after cooling evaporated down The product is extracted with dichloromethane purified by chromatography (preparative HPLC, method A) 0.26 g (III-2) are obtained as a solid

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

Procedure: 0.450 g (S)-5-dibenzylamino-1-methylpiperidin-2-one are suspended in 25 ml of methanol and hydrogenated with 0.150 g Pd/C 10% at a pressure of 3 bar and a temperature of 60° C. After 16 hours the catalyst is removed by suction filtering and the filtrate is evaporated to dryness. 0.190 g of the product are obtained as an oil. 1H NMR (400 MHz, DMSO): 2.76 (3H, s). a temperature of 60° C After 16 hours the catalyst is removed by suction filtering the filtrate is evaporated to dryness

Conditions: temp:130.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 0.27 g (II) are placed in 3 ml dioxane, then 0.45 ml diisopropylethylamine and 0.25 g (S)-5-amino-1-methylpiperidin-2-one are added. The reaction mixture is heated to 130° C. until there is no further reaction, then cooled and evaporated down. The product is extracted with dichloromethane and purified by chromatography (preparative HPLC, method B). 0.26 g (III-5) are obtained in the form of a solid. Analytical HPLC-MS (method A): RT=1.06 min. no further reaction cooled evaporated down The product is extracted with dichloromethane purified by chromatography (preparative HPLC, method B) 0.26 g (III-5) are obtained in the form of a solid

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

Procedure: 0.450 g (S)-5-dibenzylamino-1-methylpiperidin-2-one are suspended in 25 ml of methanol and hydrogenated with 0.150 g Pd/C 10% at a pressure of 3 bar and a temperature of 60° C. After 16 hours the catalyst is eliminated by suction filtering and the filtrate is evaporated to dryness. 0.190 g of the product are obtained as an oil. 1H NMR (400 MHz, DMSO): 2.76 (3H, s). a temperature of 60° C filtering the filtrate is evaporated to dryness