cyclopent-3-en-1-yl methanesulfonate

Conditions: temp:70.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: N-[(1S)-2,3-Dihydro-1H-inden-1-yl]-7H-pyrrolo[2,3-d]pyrimidin-4-amine (1.32 g, 5.29 mmol) was azeotroped with toluene and placed under high vacuum for 30 min. N,N-Dimethylformamide (17.7 mL) was added, followed by cesium carbonate (1.99 g, 6.10 mmol). The mixture was stirred at 70° C. for 10 min. Cyclopent-3-en-1-yl methanesulfonate (0.660 g, 4.07 mmol) in N,N-dimethylformamide (12.6 mL) was added dropwise. The reaction mixture was heated to 110° C. for 1 h. The reaction mixture was cooled, quenched with brine and diluted with H2O. The aqueous layer was extracted with EtOAc (3×), washed with H2O and brine, dried (Na2SO4), filtered, and concentrated. The residue was purified by via silica gel chromatography, eluting with a gradient of 0 to 5% MeOH in DCM followed by 25 to 50% EtOAc in hexanes, to afford the title compound as a pale brown solid (0.684 g, 53%). LC/MS: Rt=1.38 min, ES+ 317 (FA standard). The reaction mixture was heated to 110° C. for 1 h The reaction mixture was cooled quenched with brine diluted with H2O The aqueous layer was extracted with EtOAc (3×) washed with H2O and brine dried (Na2SO4) filtered concentrated The residue was purified by via silica gel chromatography eluting with a gradient of 0 to 5% MeOH in DCM

Conditions: temp:35.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 3-Cyclopentene-1-ol (0.500 g, 5.94 mmol) was stirred in DCM (95 mL). Pyridine (2.40 mL), N,N-dimethylaminopyridine (0.10 g, 1.00 mmol) and methanesulfonyl chloride (0.690 mL, 8.92 mmol) were added, and the reaction mixture was stirred at 35° C. for 4 h. N,N-Dimethylaminopyridine (0.14 g, 1.2 mmol) and methanesulfonyl chloride (0.69 mL, 8.92 mmol) were added, and the reaction was stirred overnight. TLC indicated complete conversion. The reaction mixture was cooled and concentrated. The residue was purified by silica gel chromatography, eluting with DCM, to afford the title compound as a clear oil (0.660 g, 68%). the reaction was stirred overnight The reaction mixture was cooled concentrated The residue was purified by silica gel chromatography eluting with DCM

Conditions: temp:70.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: N-[(1S)-2,3-Dihydro-1H-inden-1-yl]-7H-pyrrolo[2,3-d]pyrimidin-4-amine (1.32 g, 5.29 mmol) was azeotroped with toluene and placed under high vacuum for 30 min. N,N-Dimethylformamide (17.7 mL) was added, followed by cesium carbonate (1.99 g, 6.10 mmol). The mixture was stirred at 70° C. for 10 min. Cyclopent-3-en-1-yl methanesulfonate (0.660 g, 4.07 mmol) in N,N-dimethylformamide (12.6 mL) was added dropwise. The reaction mixture was heated to 110° C. for 1 h. The reaction mixture was cooled, quenched with brine and diluted with H2O. The aqueous layer was extracted with EtOAc (3×), washed with H2O and brine, dried (Na2SO4), filtered, and concentrated. The residue was purified by via silica gel chromatography, eluting with a gradient of 0 to 5% MeOH in DCM followed by 25 to 50% EtOAc in hexanes, to afford the title compound as a pale brown solid (0.684 g, 53%). LC/MS: Rt=1.38 min, ES+ 317 (FA standard). The reaction mixture was heated to 110° C. for 1 h The reaction mixture was cooled quenched with brine diluted with H2O The aqueous layer was extracted with EtOAc (3×) washed with H2O and brine dried (Na2SO4) filtered concentrated The residue was purified by via silica gel chromatography eluting with a gradient of 0 to 5% MeOH in DCM

Conditions: temp:35.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 3-Cyclopentene-1-ol (0.500 g, 5.94 mmol) was stirred in DCM (95 mL). Pyridine (2.40 mL), N,N-dimethylaminopyridine (0.10 g, 1.00 mmol) and methanesulfonyl chloride (0.690 mL, 8.92 mmol) were added, and the reaction mixture was stirred at 35° C. for 4 h. N,N-Dimethylaminopyridine (0.14 g, 1.2 mmol) and methanesulfonyl chloride (0.69 mL, 8.92 mmol) were added, and the reaction was stirred overnight. TLC indicated complete conversion. The reaction mixture was cooled and concentrated. The residue was purified by silica gel chromatography, eluting with DCM, to afford the title compound as a clear oil (0.660 g, 68%). the reaction was stirred overnight The reaction mixture was cooled concentrated The residue was purified by silica gel chromatography eluting with DCM

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

Procedure: To an ice-cold solution of 3,5-dimethyl-4-iodo-1H-pyrazole (5.00 g, 22.5 mmol) in DMF (15 mL) was added NaH (60%, 1.08 g, 27 mmol) in portions and stirred at room temperature for 1 h. To this was added methanesulfonic acid cyclopent-3-enyl ester (4.00 g, 24.7 mmol) and heated at 60° C. overnight. The reaction mixture was poured into water and extracted with ethyl acetate (60 mL). The ethyl acetate layer was washed with brine, dried over Na2SO4, filtered and concentrated. The crude residue was purified by column chromatography using 5-10% ethyl acetate in hexane to give the title compound as an oil. 1H NMR (300 MHz, CDCl3): δ=5.75 (s, 2H), 4.97 (m, 1H), 2.79 (d, 4H, J=7.2 Hz), 2.28 (s, 3H), 2.22 (s, 3H). heated at 60° C. overnight extracted with ethyl acetate (60 mL) The ethyl acetate layer was washed with brine dried over Na2SO4 filtered concentrated The crude residue was purified by column chromatography

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

Procedure: To a solution of 3-cyclopentene-1-ol (9.00 g, 107 mmol) in dry methylene chloride (150 mL) was added TEA (23.0 mL, 160 mmol) followed by DMAP (100 mg). To this solution was added methanesulfonyl chloride (14.72 g, 128 mmol) at 10-20° C. slowly over 15 minutes and stirred overnight at room temperature. To the reaction mixture was added aqueous saturated NaHCO3 (50 mL) and stirred for 15 minutes at room temperature. The organic layer was separated, washed with water, followed by brine and dried over NaSO4. It was filtered and concentrated to give the title compound as an oil that was used without purification in the next reaction. 1H NMR (300 MHz, CDCl3): δ=5.72 (s, 2H), 5.38 (mc, 1H), 3.00 (s, 3H), 2.81-2.61 (m, 4H). stirred for 15 minutes at room temperature The organic layer was separated washed with water dried over NaSO4 It was filtered concentrated

Conditions: temp:70.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: N-[(1S)-2,3-Dihydro-1H-inden-1-yl]-7H-pyrrolo[2,3-d]pyrimidin-4-amine (1.32 g, 5.29 mmol) was azeotroped with toluene and placed under high vacuum for 30 min. N,N-Dimethylformamide (17.7 mL) was added, followed by cesium carbonate (1.99 g, 6.10 mmol). The mixture was stirred at 70° C. for 10 min. Cyclopent-3-en-1-yl methanesulfonate (0.660 g, 4.07 mmol) in N,N-dimethylformamide (12.6 mL) was added dropwise. The reaction mixture was heated to 110° C. for 1 h. The reaction mixture was cooled, quenched with brine and diluted with H2O. The aqueous layer was extracted with EtOAc (3×), washed with H2O and brine, dried (Na2SO4), filtered, and concentrated. The residue was purified by via silica gel chromatography, eluting with a gradient of 0 to 5% MeOH in DCM followed by 25 to 50% EtOAc in hexanes, to afford the title compound as a pale brown solid (0.684 g, 53%). LC/MS: Rt=1.38 min, ES+ 317 (FA standard). The reaction mixture was heated to 110° C. for 1 h The reaction mixture was cooled quenched with brine diluted with H2O The aqueous layer was extracted with EtOAc (3×) washed with H2O and brine dried (Na2SO4) filtered concentrated The residue was purified by via silica gel chromatography eluting with a gradient of 0 to 5% MeOH in DCM

Conditions: temp:35.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 3-Cyclopentene-1-ol (0.500 g, 5.94 mmol) was stirred in DCM (95 mL). Pyridine (2.40 mL), N,N-dimethylaminopyridine (0.10 g, 1.00 mmol) and methanesulfonyl chloride (0.690 mL, 8.92 mmol) were added, and the reaction mixture was stirred at 35° C. for 4 h. N,N-Dimethylaminopyridine (0.14 g, 1.2 mmol) and methanesulfonyl chloride (0.69 mL, 8.92 mmol) were added, and the reaction was stirred overnight. TLC indicated complete conversion. The reaction mixture was cooled and concentrated. The residue was purified by silica gel chromatography, eluting with DCM, to afford the title compound as a clear oil (0.660 g, 68%). the reaction was stirred overnight The reaction mixture was cooled concentrated The residue was purified by silica gel chromatography eluting with DCM