2-(isothiocyanatomethyl)furan

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

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

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

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

Procedure: A solution of formic acid hydrazide (439 mg, 7.809 mmol) in pyridine (20 ml) was added to a solution of 2-isothiocyanatomethyl-furan (1 g, 7.185 mmol) in pyridine (20 ml). Reaction took place at room temperature overnight, and ethanol (20 ml) was added directly to the reaction and placed in 80 C bath overnight. Solvent was evaporated and the title compound (1.09 g, 83%) was obtained from purification by SPE chromatography on silica gel with 500 ml 20%, 250 ml 25%, 250 ml 30%, 250 ml 35%, 250 ml 40%, and 250 ml 50% ethyl acetate in hexanes. 1H NMR (CD3OD), δ (ppm): 14.0 (bs, 1H), 8.19 (s, 1H), 7.52 (q, 1H), 6.52 (m, 1H), 6.42 (m, 1H), 4.90 (s, 2H). Reaction at room temperature was added directly to the reaction placed in 80 C bath overnight Solvent was evaporated

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

Procedure: A solution of formic acid hydrazide (439 mg, 7.809 mmol) in pyridine (20 ml) was added to a solution of 2-isothiocyanatomethyl-furan (1 g, 7.185 mmol) in pyridine (20 ml). Reaction took place at room temperature overnight, and ethanol (20 ml) was added directly to the reaction and placed in 80 C bath overnight. Solvent was evaporated and the title compound (1.09 g, 83%) was obtained from purification by SPE chromatography on silica gel with 500 ml 20%, 250 ml 25%, 250 ml 30%, 250 ml 35%, 250 ml 40%, and 250 ml 50% ethyl acetate in hexanes. 1H NMR (CD3OD), δ (ppm): 14.0 (bs, 1H), 8.19 (s, 1H), 7.52 (q, 1H), 6.52 (m, 1H), 6.42 (m, 1H), 4.90 (s, 2H). Reaction at room temperature was added directly to the reaction placed in 80 C bath overnight Solvent was evaporated

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

Procedure: (αS,βR)-β-{[1-(4-Fluorophenyl)-1H-indazole-5-yl]oxy}-α-methylbenzeneethanamine (50 mg, 0.14 mmol), as described in Example 1, is dissolved in 0.89 mL dichloromethane and furylmethylisothiocyanate (19.3 mg, 0.14 mmol) is dropwise added. After stirring for 90 min at r.t. water (5 mL) is added and the reaction mixture extracted once with ethyl acetate (50 mL). The organic phase is washed with water (10 mL) and dried over Na2SO4. After filtration the solvent is removed and the residue purified by chromatography (silicagel, eluents: hexane/ethylacetate). 53.8 mg (77.7%) of the title compound are obtained. is added the reaction mixture extracted once with ethyl acetate (50 mL) The organic phase is washed with water (10 mL) dried over Na2SO4 After filtration the solvent is removed the residue purified by chromatography (silicagel, eluents: hexane/ethylacetate)

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

Procedure: A solution of formic acid hydrazide (439 mg, 7.809 mmol) in pyridine (20 ml) was added to a solution of 2-isothiocyanatomethyl-furan (1 g, 7.185 mmol) in pyridine (20 ml). Reaction took place at room temperature overnight, and ethanol (20 ml) was added directly to the reaction and placed in 80C bath overnight. Solvent was evaporated and the title compound (1.09 g, 83%) was obtained from purification by SPE chromatography on silica gel with 500 ml 20%, 250 ml 25%, 250 ml 30%, 250 ml 35%, 250 ml 40%, and 250 ml 50% ethyl acetate in hexanes. 1H NMR (CD3OD), δ (ppm): 14.0 (bs, 1H), 8.19 (s, 1H), 7.52 (q, 1H), 6.52 (m, 1H), 6.42 (m, 1H), 4.90 (s, 2H). Reaction at room temperature was added directly to the reaction Solvent was evaporated

Conditions: temp:25.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A solution of 2-(1-methyl-2-phenylethyl)pyridine (6.12 g, 31 mmol) in 60 mL of anhydrous tetrahydrofuran under nitrogen at -35° C. was treated (via syringe) with 2.50N n-butyllithium/hexane (30 mmol), and stirred at -25° (±5) C. for 30 minutes. The mixture was transferred via a cannula over a 15-minute period into a cooled (-70° C.) solution of 2-furanylmethyl isothiocyanate (prepared in 89% yield from 2-furanylmethylamine by the procedure of J. C. Joehims and A. Seeliger, Angew. Chem. Int. Ed. Engl. 6, 174-175 (1967) (4.45 g, 32 mmol) in 25 mL of anhydrous tetrahydrofuran under nitrogen. The solution was warmed to 25° C. over one hour, maintained at room temperature for 30 minutes, cooled (0° C.), and treated (via syringe) with methyl iodide (4.68 g, 2.05 mL, 33 mmol). After 30 minutes at room temperature, the cooled (0° C.) solution was poured into a stirred mixture of 300 mL of chloroform and 150 mL of ice water. The organic layer was separated, and the aqueous solution was extracted with 150 mL of chloroform. The combined organic extracts were washed with 150 mL of brine, dried (Na2SO4) and concentrated in vacuo to afford the crude intermediate used below without further purification. The mixture was transferred via a cannula over a 15-minute period maintained at room temperature for 30 minutes cooled (0° C.) After 30 minutes at room temperature the cooled (0° C.) solution The organic layer was separated the aqueous solution was extracted with 150 mL of chloroform The combined organic extracts were washed with 150 mL of brine dried (Na2SO4) concentrated in vacuo

Conditions: temp:25.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A solution of 2-(1-methyl-2-phenylethyl)pyridine (6.12 g, 31 mmol) in 60 mL of anhydrous tetrahydrofuran under nitrogen at -35° C. was treated (via syringe) with 2.50N n-butyllithium/hexane (30 mmol), and stirred at -25° (±5) C. for 30 minutes. The mixture was transferred via a cannula over a 15-minute period into a cooled (-70° C.) solution of 2-furanylmethyl isothiocyanate (prepared in 89% yield from 2-furanylmethylamine by the procedure of J. C. Joehims and A. Seeliger, Angew. Chem. Int. Ed. Engl. 6, 174-175 (1967) (4.45 g, 32 mmol) in 25 mL of anhydrous tetrahydrofuran under nitrogen. The solution was warmed to 25° C. over one hour, maintained at room temperature for 30 minutes, cooled (0° C.), and treated (via syringe) with methyl iodide (4.68 g, 2.05 mL, 33 mmol). After 30 minutes at room temperature, the cooled (0° C.) solution was poured into a stirred mixture of 300 mL of chloroform and 150 mL of ice water. The organic layer was separated, and the aqueous solution was extracted with 150 mL of chloroform. The combined organic extracts were washed with 150 mL of brine, dried (Na2SO4) and concentrated in vacuo to afford the crude intermediate used below without further purification. The mixture was transferred via a cannula over a 15-minute period maintained at room temperature for 30 minutes cooled (0° C.) After 30 minutes at room temperature the cooled (0° C.) solution The organic layer was separated the aqueous solution was extracted with 150 mL of chloroform The combined organic extracts were washed with 150 mL of brine dried (Na2SO4) concentrated in vacuo

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

Procedure: A solution of formic acid hydrazide (439 mg, 7.809 mmol) in pyridine (20 ml) was added to a solution of 2-isothiocyanatomethyl-furan (1 g, 7.185 mmol) in pyridine (20 ml). Reaction took place at room temperature overnight, and ethanol (20 ml) was added directly to the reaction and placed in 80 C bath overnight. Solvent was evaporated and the title compound (1.09 g, 83%) was obtained from purification by SPE chromatography on silica gel with 500 ml 20%, 250 ml 25%, 250 ml 30%, 250 ml 35%, 250 ml 40%, and 250 ml 50% ethyl acetate in hexanes. 1H NMR (CD3OD), δ (ppm): 14.0 (bs, 1H), 8.19 (s, 1H), 7.52 (q, 1H), 6.52 (m, 1H), 6.42 (m, 1H), 4.90 (s, 2H). Reaction at room temperature was added directly to the reaction placed in 80 C bath overnight Solvent was evaporated

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

Procedure: 200 mg of 11-amino-2-[2-(dimethylamino)ethyl]-1H-dibenzo[de,h]isoquinoline-1,3(2H)-dione (obtained in example 3) (0.60 mmole) were dissolved in 15 ml of acetonitrile. 120 μl (2 molar equivalents) of 2-furylmethyl isothiocyanate was added and the reaction was maintained at room temperature overnight then for 5 hours at 55° C. The solvent was then evaporated under reduced pressure and the residue was submitted to a flash chromatography (SiO2, CH2Cl2/MeOH 95/5). 212 mg of the desired product (formula shown hereinabove) were isolated as a red powder (yield=75%) which was characterized as follows: The solvent was then evaporated under reduced pressure

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