cyclopentanesulfonyl chloride

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: According to the general procedure B, 5,6-difluoro-N1-(2-fluoro-4-iodophenyl)benzene-1,2-diamine was reacted with cyclopentanesulfonyl chloride to obtain the desired product 1H NMR (300 MHz, CDCl3): δ 7.42 (dd, J=2.1 & 10.5 Hz, 1H), 7.36 (ddd, J=2.4, 4.8, & 9.3 Hz, 1H), 7.25 (m, 2H), 7.10 (dd, J=9.6 & 17.7 Hz, 1H), 6.67 (br s, D2O exchangeable, 1H), 6.20 (dt, J=1.5, 8.4 & 17.4 Hz, 1H), 3.53 (p, 1H), 1.80 (m, 8H); m/z=495 [M−1]−.

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

Procedure: According to the general procedure B, 5,6-difluoro-N1-(2-fluoro-4-iodophenyl)benzene-1,2-diamine was reacted with cyclopentanesulfonyl chloride to obtain the desired product 1H NMR (300 MHz, CDCl3): δ 7.42 (dd, J=2.1 & 10.5 Hz, 1H), 7.36 (ddd, J=2.4, 4.8, & 9.3 Hz, 1H), 7.25 (m, 2H), 7.10 (dd, J=9.6 & 17.7 Hz, 1H), 6.67 (br s, D2O exchangeable, 1H), 6.20 (dt, J=1.5, 8.4 & 17.4 Hz, 1H), 3.53 (p, 1H), 1.80 (m, 8H); m/z=495 [M−1]−.

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

Procedure: According to the general procedure B, 5,6-difluoro-N1-(2-fluoro-4-iodophenyl)benzene-1,2-diamine was reacted with cyclopentanesulfonyl chloride to obtain the desired product 1H NMR (300 MHz, CDCl3): δ 7.42 (dd, J=2.1 & 10.5 Hz, 1H), 7.36 (ddd, J=2.4, 4.8, & 9.3 Hz, 1H), 7.25 (m, 2H), 7.10 (dd, J=9.6 & 17.7 Hz, 1H), 6.67 (br s, D2O exchangeable, 1H), 6.20 (dt, J=1.5, 8.4 & 17.4 Hz, 1H), 3.53 (p, 1H), 1.80 (m, 8H); m/z=495 [M−1]−.

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

Procedure: Tryptamine (950 mg, 5.93 mmol) was initially introduced into abs. THF (30 ml), and triethylamine (0.82 ml, 5.93 mmol) was added at RT. Cyclopentanesulfonyl chloride (1.00 g, 5.93 mmol) was then swiftly added dropwise at RT and the mixture was stirred at RT for 1 d. A subsequent TLC in chloroform/methanol 20:1 showed only small amounts still of tryptamine. The mixture was concentrated i. vac., the residue obtained was taken up in ethyl acetate (20 ml) and the mixture was washed with saturated NaHCO3 solution (2×20 ml). A precipitate precipitated out of the solution, this was filtered off with suction, but according to TLC it was not the product. The organic phase was washed with saturated NaCl solution (2×20 ml), dried over Na2SO4 and concentrated i. vac. The mixture was concentrated i , the residue obtained the mixture was washed with saturated NaHCO3 solution (2×20 ml) A precipitate precipitated out of the solution this was filtered off with suction The organic phase was washed with saturated NaCl solution (2×20 ml) dried over Na2SO4 concentrated i

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

Procedure: 4-(3-(2-aminoethyl)-1H-indol-2-yl)-1-butyl-N,N-dimethyl-4-(3-methyl-1H-indol-2-yl)cyclohexylamine (120 mg, 0.255 mmol, mixture of the two possible diastereoisomers in a ratio of approx. 30:70) mixed in dichloromethane (5 ml) with triethylamine (0.12 ml, 0.863 mmol) and cyclopentane sulphonyl chloride (65 mg, 0.385 mmol). After a reaction time of 24 h at 25° C. the reaction mixture was mixed with 1N sodium hydroxide solution (10 ml) and extracted with dichloromethane (3×15 ml). The combined organic phases were dried with Na2SO4 and then filtered. The volatile constituents of the filtrate were completely removed in a vacuum. The residue (yellow foam, 173 mg) was purified by column chromatography [silica gel 60 (25 g); ethyl acetate/methanol 4:1 (250 ml), methanol/30% ammonia 9:1 (100 ml)]. The product was obtained as a beige-coloured solid with a yield of 39 mg (25%) (melting point 111-115° C., AS 11227, mixture of the two possible diastereoisomers in a ratio of approx. 30:70). extracted with dichloromethane (3×15 ml) The combined organic phases were dried with Na2SO4 filtered The volatile constituents of the filtrate were completely removed in a vacuum The residue (yellow foam, 173 mg) was purified by column chromatography [silica gel 60 (25 g); ethyl acetate/methanol 4:1 (250 ml), methanol/30% ammonia 9:1 (100 ml)] The product was obtained as a beige-coloured solid with a yield of 39 mg (25%) (melting point 111-115° C. AS 11227, mixture of the two possible diastereoisomers in a ratio of approx. 30:70)

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

Procedure: 4-(3-(2-aminoethyl)-1H-indol-2-yl)-1-butyl-N,N-dimethyl-4-(3-methyl-1H-indol-2-yl)cyclohexylamine (120 mg, 0.255 mmol, mixture of the two possible diastereoisomers in a ratio of approx. 30:70) mixed in dichloromethane (5 ml) with triethylamine (0.12 ml, 0.863 mmol) and cyclopentane sulphonyl chloride (65 mg, 0.385 mmol). After a reaction time of 24 h at 25° C. the reaction mixture was mixed with 1N sodium hydroxide solution (10 ml) and extracted with dichloromethane (3×15 ml). The combined organic phases were dried with Na2SO4 and then filtered. The volatile constituents of the filtrate were completely removed in a vacuum. The residue (yellow foam, 173 mg) was purified by column chromatography [silica gel 60 (25 g); ethyl acetate/methanol 4:1 (250 ml), methanol/30% ammonia 9:1 (100 ml)]. The product was obtained as a beige-coloured solid with a yield of 39 mg (25%) (melting point 111-115° C., AS 11227, mixture of the two possible diastereoisomers in a ratio of approx. 30:70). extracted with dichloromethane (3×15 ml) The combined organic phases were dried with Na2SO4 filtered The volatile constituents of the filtrate were completely removed in a vacuum The residue (yellow foam, 173 mg) was purified by column chromatography [silica gel 60 (25 g); ethyl acetate/methanol 4:1 (250 ml), methanol/30% ammonia 9:1 (100 ml)] The product was obtained as a beige-coloured solid with a yield of 39 mg (25%) (melting point 111-115° C. AS 11227, mixture of the two possible diastereoisomers in a ratio of approx. 30:70)

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

Procedure: To a solution of methyl 4-(2-amino-5-trifluoromethylphenoxymethyl)-benzoate (300 mg) in methylene chloride (3.0 ml), pyridine (187 μl) and triphenylphosphine (315 mg) were added in a stream of argon. At 0° C., cyclopentylsulfonylchloride (202 mg) was added dropwise thereto. The mixture was stirred for 6 hours at room temperature. To the reaction mixture, water was added. The mixture was extracted with ethyl acetate, washed, dried over and concentrated with the reduced pressure. The residue was purified on silica gel column chromatography (hexane:AcOEt=2:1→1:1) to give the title compound (309 mg) having the following physical data. The mixture was extracted with ethyl acetate washed dried over and concentrated with the reduced pressure The residue was purified on silica gel column chromatography (hexane:AcOEt=2:1→1:1)

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

Procedure: To a solution of methyl 4-(2-amino-5-trifluoromethylphenoxymethyl)-benzoate (300 mg) in methylene chloride (3.0 ml), pyridine (187 μl) and triphenylphosphine (315 mg) were added in a stream of argon. At 0° C., cyclopentylsulfonylchloride (202 mg) was added dropwise thereto. The mixture was stirred for 6 hours at room temperature. To the reaction mixture, water was added. The mixture was extracted with ethyl acetate, washed, dried over and concentrated with the reduced pressure. The residue was purified on silica gel column chromatography (hexane:AcOEt=2:1→1:1) to give the title compound (309 mg) having the following physical data. The mixture was extracted with ethyl acetate washed dried over and concentrated with the reduced pressure The residue was purified on silica gel column chromatography (hexane:AcOEt=2:1→1:1)

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

Procedure: According to the procedure for compound 398 using cyclopentanesulfonyl chloride (97 mg, 0.57 mmol) afforded 9.7 mg (20% yield) of 403, as a solid.

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

Procedure: This compound was prepared by using procedures analogous to those described for the synthesis of Example 67, Step 4 starting from cyclopentanesulfonyl chloride (Aldrich, Cat. #656607) and piperidin-4-yl 7-[2-amino-6-(4-methylpiperazin-1-yl)pyrimidin-4-yl]-3,4-dihydroisoquinoline-2(1H)-carboxylate HCl salt. Analytic LCMS (M+H)+: m/z=584.2. This compound was prepared