(2-methylphenyl)methyl carbonochloridate

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

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

Procedure: In a mixture of 10 ml of water and 20 ml of ethyl acetate, 1.6 g of tyrosinol was dissolved. To the solution were added dropwise 2 g of 2-methylbenzyloxycarbonyl choride and 10 ml of an aqueous solution containing 1.3 g of sodium carbonate alternately with stirring while cooling with ice. After stirring for two hours at room temperature, the ethyl acetate layer was collected and washed with 5% hydrochloric acid and then with water. The layer was dried and concentrated to dryness. The residue was crystallized from ethyl acetate-petroleum either to give 2.2 g of N-(2-methylbenzyloxycarbonyl)-tyrosinol with a mp. 78°-81° C in a yield of 70%. Analysis, calculated for C18H21O4N C 68.55, H 6.72, N 4.44, found C 68.88, H 6.84, N 4.42. was dissolved while cooling with ice After stirring for two hours at room temperature the ethyl acetate layer was collected washed with 5% hydrochloric acid The layer was dried concentrated to dryness The residue was crystallized from ethyl acetate-petroleum

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

Procedure: In a mixture of 10 ml of water and 20 ml of ethyl acetate, 1.6 g of tyrosinol was dissolved. To the solution were added dropwise 2 g of 2-methylbenzyloxycarbonyl choride and 10 ml of an aqueous solution containing 1.3 g of sodium carbonate alternately with stirring while cooling with ice. After stirring for two hours at room temperature, the ethyl acetate layer was collected and washed with 5% hydrochloric acid and then with water. The layer was dried and concentrated to dryness. The residue was crystallized from ethyl acetate-petroleum either to give 2.2 g of N-(2-methylbenzyloxycarbonyl)-tyrosinol with a mp. 78°-81° C in a yield of 70%. Analysis, calculated for C18H21O4N C 68.55, H 6.72, N 4.44, found C 68.88, H 6.84, N 4.42. was dissolved while cooling with ice After stirring for two hours at room temperature the ethyl acetate layer was collected washed with 5% hydrochloric acid The layer was dried concentrated to dryness The residue was crystallized from ethyl acetate-petroleum

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

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

Procedure: In a mixture of 10 ml of water and 20 ml of ethyl acetate, 1.6 g of tyrosinol was dissolved. To the solution were added dropwise 2 g of 2-methylbenzyloxycarbonyl chloride and 10 ml of an aqueous solution containing 1.3 g of sodium carbonate alternately with stirring while cooling with ice. After stirring for two hours at room temperature, the ethyl acetate layer was collected and washed with 5% hydrochloric acid and then with water. The layer was dried and concentrated to dryness. The residue was crystallized from ethyl acetate-petroleum ether to give 2.2 g of N-(2-methylbenzyloxycarbonyl)-tyrosinol with a mp. 78°-81° C. in a yield of 70%. Analysis, calculated for C18H21O4N: C, 68.55; H, 6.72; N, 4.44; found C, 68.88; H, 6.84; N, 4.42. was dissolved while cooling with ice After stirring for two hours at room temperature the ethyl acetate layer was collected washed with 5% hydrochloric acid The layer was dried concentrated to dryness The residue was crystallized from ethyl acetate-petroleum ether

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

Procedure: 2-Methylbenzyl (1R,2R)-2-((S)-1-(4-cyanophenyl)piperidin-3-ylamino)cyclohexylcarbamate was synthesized using 4-((S)-3-((1R,2R)-2-aminocyclohexylamino)piperidin-1-yl)benzonitrile (from intermediate D, Example 10) (60 mg, 0.20 mmol) and 2-methylbenzyl carbonochloridate (63.5 mg, 0.22 mmol) according to General Procedure H to give 25 mg (27.8%) of white solid. Anal. Calcd. for C27H34N4O2 m/z 446.3, found: 447.2 (M+H)+; 1H NMR (400 MHz, CD3OD) δ ppm 7.45 (d, J=8.7 Hz, 2H), 7.26 (d, J=7.3 Hz, 1H), 7.19 (m, 1H), 7.14 (m, 2H), 6.98 (m, 2H), 5.05 (m, 2H), 3.7 (m, 1H), 3.55 (m, 1H), 3.28 (m, 1H), 2.97 (m, 1H), 2.74 (m, 1H), 2.68 (m, 1H), 2.50 (m, 1H), 2.31 (s, 3H), 2.04 (m, 1H), 1.91 (m, 2H), 1.78 (m, 3H), 1.61 (m, 1H), 1.33 (m, 5H), 1.21 (m, 1H).

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

Procedure: In a mixture of 10 ml of water and 20 ml of ethyl acetate, 1.6 g of tyrosinol was dissolved. To the solution were added dropwise 2 g of 2-methylbenzyloxycarbonyl choride and 10 ml of an aqueous solution containing 1.3 g of sodium carbonate alternately with stirring while cooling with ice. After stirring for two hours at room temperature, the ethyl acetate layer was collected and washed with 5% hydrochloric acid and then with water. The layer was dried and concentrated to dryness. The residue was crystallized from ethyl acetate-petroleum ether to give 2.2 g of N-(2-methylbenzyloxycarbonyl)-tyrosinol with a mp. 78°-81° C in a yield of 70%. Analysis, calculated for C18H21O4N C 68.55, H 6.72. N 4.44, found C 68.88, H 6.84, N 4.42. According to the same procedure as used in Example 38, the following tyrosinol derivatives were prepared from the corresponding chlorides. was dissolved while cooling with ice After stirring for two hours at room temperature the ethyl acetate layer was collected washed with 5% hydrochloric acid The layer was dried concentrated to dryness The residue was crystallized from ethyl acetate-petroleum ether

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

Procedure: In a mixture of 10 ml of water and 20 ml of ethyl acetate, 1.6 g of tyrosinol was dissolved. To the solution were added dropwise 2 g of 2-methylbenzyloxycarbonyl choride and 10 ml of an aqueous solution containing 1.3 g of sodium carbonate alternately with stirring while cooling with ice. After stirring for two hours at room temperature, the ethyl acetate layer was collected and washed with 5% hydrochloric acid and then with water. The layer was dried and concentrated to dryness. The residue was crystallized from ethyl acetate-petroleum either to give 2.2 g of N-(2-methylbenzyloxycarbonyl)-tyrosinol with a mp. 78°-81° C in a yield of 70%. Analysis, calculated for C18H21O4N C 68.55, H 6.72, N 4.44, found C 68.88, H 6.84, N 4.42. was dissolved while cooling with ice After stirring for two hours at room temperature the ethyl acetate layer was collected washed with 5% hydrochloric acid The layer was dried concentrated to dryness The residue was crystallized from ethyl acetate-petroleum

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