(1R,2R)-2-N,2-N-dimethylcyclohexane-1,2-diamine

Conditions: temp:120.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 1-[(5-bromopyridin-2-yl)methyl]-N-[(1S,2S)-2-hydroxycyclohexyl]-4-oxo-4H-quinolizine-3-carboxamide (Example 2, 0.045 g, 0.099 mmol) and pyrazole (0.020 g, 0.30 mmol) in 2 mL of DMSO under an atmosphere of nitrogen was added aqueous cesium carbonate (1 M, 0.20 mL, 0.20 mmol), trans-N, N-dimethylcyclohexane-1,2-diamine (0.014 g, 0.10 mmol), and copper(I) iodide (0.014 g, 0.076 mmol). The mixture was heated at 120° C. for 15 h, cooled to rt, and subjected to purification via reverse phase HPLC to provide the title compound that gave a proton NMR spectra consistent with theory and a mass ion (ES+) of 444.0 for [M+H]+: 1H NMR (400 MHz, CD3OD) δ 9.46 (d, J=7.6 Hz, 1H), 8.93 (s, 1H), 8.58 (s, 1H), 8.28 (s, 1H), 8.17-8.08 (m, 2H), 7.85-7.82 (m, 1H), 7.75 (s, 1H), 7.49-7.44 (m, 2H), 6.56-6.55 (m, 1H), 4.53 (s, 2H), 3.86-3.82 (m, 1H), 3.74-3.70 (m, 1H), 2.13-2.02 (m, 2H), 1.89-1.73 (m, 13H), 1.43-1.33 (m, 3H). cooled to rt subjected to purification via reverse phase HPLC

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

Procedure: To a solution of rac-6-[(6-chloropyridin-3-yl)methyl]-3-[trans-2-hydroxycyclohexyl]benzo[h]quinazolin-4(3H)-one (0.150 g, 0.357 mmol) in 3 mL of MeOH under an atmosphere of nitrogen was added trans-N,N-dimethylcyclohexane-1,2-diamine (1.7 mg, 0.012 mmol), and copper(I) iodide (2.3 mg, 0.012 mmol). The mixture was irradiated in a microwave reactor at 160° C. for 4 h, cooled to rt and concentrated in vacuo. The residue was purified via silica gel chromatography, eluting with 0-100% ethyl acetate in hexanes, to provide the title compound that gave a proton NMR spectra consistent with theory and a mass ion (ES+) of 416.0 for [M+H]+: 1H NMR (400 MHz, CDCl3) δ 9.03-8.99 (m, 1H), 8.29 (s, 1H), 8.10 (s, 1H), 8.02-7.99 (m, 2H), 7.70-7.65 (m, 2H), 7.37-7.34 (m, 1H), 6.62 (d, J=8.5 Hz, 1H), 4.82 (br s, 1H), 4.39 (s, 2H), 4.01 (br s, 1H), 3.90 (s, 3H), 2.30-2.23 (m, 1H), 2.18-2.12 (m, 1H), 1.99-1.84 (m, 3H), 1.53-1.42 (m, 3H). The mixture was irradiated in a microwave reactor at 160° C. for 4 h concentrated in vacuo The residue was purified via silica gel chromatography eluting with 0-100% ethyl acetate in hexanes

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

Procedure: To a solution of rac-6-[(6-chloropyridin-3-yl)methyl]-3-[trans-2-hydroxycyclohexyl]benzo[h]quinazolin-4(3H)-one (0.050 g, 0.12 mmol) and pyrazole (0.024 g, 0.36 mmol) in 2 mL of DMSO under an atmosphere of nitrogen was added cesium carbonate (0.24 mL, 1 N aqueous, 0.24 mmol), trans-N,N-dimethylcyclohexane-1,2-diamine (1.7 mg, 0.012 mmol), and copper(I) iodide (2.3 mg, 0.012 mmol). The mixture was heated at 130° C. for 24 h, cooled to rt, and purified via preparative reverse phase HPLC. The appropriate fractions were concentrated in vacuo. The residue was taken up in saturated aqueous sodium bicarbonate and extracted 3 times with ethyl acetate. The combined organic extracts were washed with brine, dried over sodium sulfate, filtered, and concentrated in vacuo to provide the title compound that gave a proton NMR spectra consistent with theory and a mass ion (ES+) of 452.0 for [M+H]+: 1H NMR (400 MHz, CDCl3) δ 9.01-8.99 (m, 1H), 8.50 (s, 1H), 8.32-8.30 (m, 2H), 8.02 (s, 1H), 7.93-7.91 (m, 1H), 7.84 (d, J=8.2 Hz, 1H), 7.69-7.64 (m, 3H), 7.56 (d, J=8.4 Hz, 1H), 6.43 (s, 2H), 4.63 (br s, 1H), 4.09 (br s, 1H), 2.28-2.22 (m, 1H), 2.14-2.00 (m, 1H), 1.94-1.84 (m, 3H), 1.60-1.40 (m, 3H), 1.18-1.10 (m, 1H). cooled to rt purified via preparative reverse phase HPLC The appropriate fractions were concentrated in vacuo extracted 3 times with ethyl acetate The combined organic extracts were washed with brine dried over sodium sulfate filtered concentrated in vacuo

Conditions: temp:120.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 6-(4-methoxybenzyl)benzo[h]quinazolin-4(3H)-one was prepared by the same procedure as described for 6-[(6-chloropyridin-3-yl)methyl]benzo[h]quinazolin-4(3H)-one in Example 1. To a solution of 6-(4-methoxybenzyl)benzo[h]quinazolin-4(3H)-one (0.030 g, 0.095 mmol) and 3-iodopyridine (0.058 g, 0.28 mmol) in 2 mL of THF and 1 mL of DMSO under an atmosphere of nitrogen was added cesium carbonate (0.19 mL, 1 N aqueous, 0.19 mmol), trans-N,N-dimethylcyclohexane-1,2-diamine (1.3 mg, 0.0095 mmol), and copper(I) iodide (1.8 mg, 0.095 mmol). The reaction was heated at 120° C. for 15 h, cooled to rt, and concentrated in vacuo. The residue was purified via preparative reverse phase HPLC to provide the title compound that gave a proton NMR spectra consistent with theory and a mass ion (ES+) of 393.9 for [M+H]+: 1H NMR (400 MHz, d6-DMSO) δ 9.07 (d, J=8.0, 1H), 8.53 (s, 1H), 8.42 (s, 1H), 8.14 (d, J=7.6 Hz, 1H), 8.07 (d, J=9.6 Hz, 2H), 7.95 (s, 1H), 7.74-7.54 (m, 5H), 4.57 (s, 2H), 4.21-4.09 (m, 1H), 3.92 (s, 3H), 2.20-2.18 (m, 1H), 2.03-1.96 (m, 1H), 1.95-1.83 (m, 2H), 1.58-1.39 (m, 3H), 1.29-1.18 (m, 2H). cooled to rt concentrated in vacuo The residue was purified via preparative reverse phase HPLC

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

Procedure: This amide was prepared by general procedure A from trans-2-(dimethylamino)cyclohexylamine and acetyl chloride. In the work up the aqueous layer was salted out with solid K2CO3, and extracted well with ether. The resulting oil was crystallized from ether-petroleum ether (30°-60°) to give colorless rods of the sub-titled amide, 79% yield, m.p. 86°-87.5° raised to 88°-89° on recrystallization. ir NH 3280, 3080; N-alkyl 2770; C=O 1660, 1640; amide II 1565. nmr in CDCl3 and 100 MHz was in accord. Mass spectrum M+ 184. extracted well with ether The resulting oil was crystallized from ether-petroleum ether (30°-60°)

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

Procedure: This amide was prepared by general procedure A from trans-2-(dimethylamino)cyclohexylamine and acetyl chloride. In the work up the aqueous layer was salted out with solid K2CO3, and extracted well with ether. The resulting oil was crystallized from ether-petroleum ether (30°-60°) to give colorless rods of the sub-titled amide, 79% yield, m.p. 86°-87.5° raised to 88°-89° on recrystallization. ir NH 3280, 3080; N-alkyl 2770; C=O 1660, 1640; amide II 1565. nmr in CDCl3 and 100 MHz was in accord. Mass spectrum M+ 184. extracted well with ether The resulting oil was crystallized from ether-petroleum ether (30°-60°)

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

Procedure: A solution of the trans 2-(dimethylamino)cyclohexylamine prepared as in Procedure VIII (5.12 g.; 0.036 mole) and 100 ml. of ethyl formate (distilled over K2CO3) was refluxed for 17 hours and evaporated. The titled product (A) was distilled at 0.1 mm, b.p. 104°, 5.2 g. (85% yield). ir NH 3280, 3040; CH 2930, 2860; N-alkyl 2770; C=O 1670; amide II 1540; other 1450, 1385. nmr in CDCl3 (100 MHz) was in accord. Mass spectrum M+ 170. evaporated The titled product (A) was distilled at 0.1 mm, b.p. 104°, 5.2 g

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

Procedure: A solution of the trans 2-(dimethylamino)cyclohexylamine prepared as in Procedure VIII (5.12 g.; 0.036 mole) and 100 ml. of ethyl formate (distilled over K2CO3) was refluxed for 17 hours and evaporated. The titled product (A) was distilled at 0.1 mm, b.p. 104°, 5.2 g. (85% yield). ir NH 3280, 3040; CH 2930, 2860; N-alkyl 2770; C=O 1670; amide II 1540; other 1450, 1385. nmr in CDCl3 (100 MHz) was in accord. Mass spectrum M+ 170. evaporated The titled product (A) was distilled at 0.1 mm, b.p. 104°, 5.2 g

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

Procedure: This titled amide was prepared by general procedure B from trans-2-(dimethylamino)cyclohexylamine and 3-trifluoromethylbenzoyl chloride. The crude oil was converted to the salt with 1 mole of p-toluenesulfonic acid in ether, and was crystallized from MeOH-ether, 47% yield, colorless plates, m.p. 208°-209°. uv λmax 222 nm (ε 22,150); sh 227 (17,900); sh 259 (1,550); sh 266 (1,100); sh 274 (566). ir NH/N+H 3280, 3040; C=O 1660; C=C/amide II 1615, 1595, 1550, 1495; CF3 /SO3- /CN 1335, 1320, 1275, 1200, 1180, 1160, 1120, 1075, 1035, 1010; aromatic/SO3- 705, 690, 680. NMR in CDCl3 (100 MHz) was in accord. Mass spectrum M+ 314. was crystallized from MeOH-ether, 47% yield, colorless plates, m.p. 208°-209°

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

Procedure: This titled amide was prepared by general procedure B from trans-2-(dimethylamino)cyclohexylamine and 3-trifluoromethylbenzoyl chloride. The crude oil was converted to the salt with 1 mole of p-toluenesulfonic acid in ether, and was crystallized from MeOH-ether, 47% yield, colorless plates, m.p. 208°-209°. uv λmax 222 nm (ε 22,150); sh 227 (17,900); sh 259 (1,550); sh 266 (1,100); sh 274 (566). ir NH/N+H 3280, 3040; C=O 1660; C=C/amide II 1615, 1595, 1550, 1495; CF3 /SO3- /CN 1335, 1320, 1275, 1200, 1180, 1160, 1120, 1075, 1035, 1010; aromatic/SO3- 705, 690, 680. NMR in CDCl3 (100 MHz) was in accord. Mass spectrum M+ 314. was crystallized from MeOH-ether, 47% yield, colorless plates, m.p. 208°-209°

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

Procedure: The titled amide was prepared according to general procedure B using p-cyanobenzoyl chloride (1.65 g.; 0.01 mole), the trans-2-(dimethylamino)cyclohexylamine (1.42 g.; 0.01 mole) and triethylamine (1.01 g.; 0.01 mole) but using CH2Cl2 for extraction. The crude solid was crystallized from ether to give colorless needles, 1.71 g. (63% yield), m.p. 160°-161°. uv λmax 236 nm (ε 17,900); sh 285 (2,550). ir NH 3320; N-alkyl 2780; C=N 2220; C=O 1635; C=C 1610, 1500; amide II 1550; aromatic 860. NMR in CDCl3 (60 MHz) was in accord. Mass spectrum M+ 271. for extraction The crude solid was crystallized from ether to give colorless needles, 1.71 g

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

Procedure: The titled amide was prepared according to general procedure B using p-cyanobenzoyl chloride (1.65 g.; 0.01 mole), the trans-2-(dimethylamino)cyclohexylamine (1.42 g.; 0.01 mole) and triethylamine (1.01 g.; 0.01 mole) but using CH2Cl2 for extraction. The crude solid was crystallized from ether to give colorless needles, 1.71 g. (63% yield), m.p. 160°-161°. uv λmax 236 nm (ε 17,900); sh 285 (2,550). ir NH 3320; N-alkyl 2780; C=N 2220; C=O 1635; C=C 1610, 1500; amide II 1550; aromatic 860. NMR in CDCl3 (60 MHz) was in accord. Mass spectrum M+ 271. for extraction The crude solid was crystallized from ether to give colorless needles, 1.71 g