BMS-795405-02

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Reduction of 6.1 g (0.019 mole) of 2,5-dibenzyl-2,5-diazabicyclo[2.2.2]octane-3,6-dione by the procedure employed to prepare 8-benzyl-3-methyl-3,8-diazabicyclo[3.2.1]octane as related under Example 5 gave 4.9 g (88%) of 2,5-dibenzyl-2,5-diazabicyclo[2.2.2]octane as a colorless oil.

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Reduction of 6.1 g (0.019 mole) of 2,5-dibenzyl-2,5-diazabicyclo[2.2.2]octane-3,6-dione by the procedure employed to prepare 8-benzyl-3-methyl-3,8-diazabicyclo[3.2.1]octane as related under Example 5 gave 4.9 g (88%) of 2,5-dibenzyl-2,5-diazabicyclo[2.2.2]octane as a colorless oil.

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A solution of 8.2 g (0.038 mole) 8-benzyl-3-methyl-3,8-diazabicyclo [3.2.1]octane in 80 ml absolute ethanol containing 0.11 mole dry hydrogen chloride was hydrogenated in the presence of 1.5 g 10% palladium on charcoal at ambient temperature and pressure for 20 hours. The precipitated hydrochloride salt of the desired product was dissolved by addition of a little water, and, after filtration, the solvent was removed carefully in vacuo. The crystalline residue (6.9 g) was triturated with ethanol-diethyl ether containing dry hydrogen chloride to insure complete formation of the somewhat unstable dihydrochloride salt. Filtration gave 6.0 g (79%) of pure product, melting point 272°-280°C (dec.) with sublimation above 200°C.

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A solution of 8.2 g (0.038 mole) 8-benzyl-3-methyl-3,8-diazabicyclo [3.2.1]octane in 80 ml absolute ethanol containing 0.11 mole dry hydrogen chloride was hydrogenated in the presence of 1.5 g 10% palladium on charcoal at ambient temperature and pressure for 20 hours. The precipitated hydrochloride salt of the desired product was dissolved by addition of a little water, and, after filtration, the solvent was removed carefully in vacuo. The crystalline residue (6.9 g) was triturated with ethanol-diethyl ether containing dry hydrogen chloride to insure complete formation of the somewhat unstable dihydrochloride salt. Filtration gave 6.0 g (79%) of pure product, melting point 272°-280°C (dec.) with sublimation above 200°C.

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Reduction of 9.6 g (0.039 mole) of 8-benzyl-3-methyl-3,8-diazabicyclo [3.2.1]octane-2,4-dione with lithium aluminum hydride in tetrahydrofuran by the procedure used for the preparation of 3-benzyl-8-methyl-3,8-diazabicyclo[3.2.1]octane, as described in Example 1, gave 8.3 g of crude desired product. Chromatography on 124 g alumina with chloroform elution gave 6.9 g (81%) of pure, oil 8-benzyl-3-methyl-3,8-diazabicyclo[3.2.1]octane. The hydrochloride salt, formed in diethyl ether by addition of three equivalents of ethanolic hydrogen chloride, melted at 263.5°-272°C (dec.) with sublimation above 180°C. gave 8.3 g of crude desired product Chromatography on 124 g alumina with chloroform elution

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Reduction of 9.6 g (0.039 mole) of 8-benzyl-3-methyl-3,8-diazabicyclo [3.2.1]octane-2,4-dione with lithium aluminum hydride in tetrahydrofuran by the procedure used for the preparation of 3-benzyl-8-methyl-3,8-diazabicyclo[3.2.1]octane, as described in Example 1, gave 8.3 g of crude desired product. Chromatography on 124 g alumina with chloroform elution gave 6.9 g (81%) of pure, oil 8-benzyl-3-methyl-3,8-diazabicyclo[3.2.1]octane. The hydrochloride salt, formed in diethyl ether by addition of three equivalents of ethanolic hydrogen chloride, melted at 263.5°-272°C (dec.) with sublimation above 180°C. gave 8.3 g of crude desired product Chromatography on 124 g alumina with chloroform elution

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Reduction of 6.1 g (0.019 mole) of 2,5-dibenzyl-2,5-diazabicyclo[2.2.2]octane-3,6-dione by the procedure employed to prepare 8-benzyl-3-methyl-3,8-diazabicyclo[3.2.1]octane as related under Example 5 gave 4.9 g (88%) of 2,5-dibenzyl-2,5-diazabicyclo[2.2.2]octane as a colorless oil.

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Reduction of 6.1 g (0.019 mole) of 2,5-dibenzyl-2,5-diazabicyclo[2.2.2]octane-3,6-dione by the procedure employed to prepare 8-benzyl-3-methyl-3,8-diazabicyclo[3.2.1]octane as related under Example 5 gave 4.9 g (88%) of 2,5-dibenzyl-2,5-diazabicyclo[2.2.2]octane as a colorless oil.

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A solution of 8.2 g (0.038 mole) 8-benzyl-3-methyl-3,8-diazabicyclo [3.2.1]octane in 80 ml absolute ethanol containing 0.11 mole dry hydrogen chloride was hydrogenated in the presence of 1.5 g 10% palladium on charcoal at ambient temperature and pressure for 20 hours. The precipitated hydrochloride salt of the desired product was dissolved by addition of a little water, and, after filtration, the solvent was removed carefully in vacuo. The crystalline residue (6.9 g) was triturated with ethanol-diethyl ether containing dry hydrogen chloride to insure complete formation of the somewhat unstable dihydrochloride salt. Filtration gave 6.0 g (79%) of pure product, melting point 272°-280°C (dec.) with sublimation above 200°C.

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Reduction of 9.6 g (0.039 mole) of 8-benzyl-3-methyl-3,8-diazabicyclo [3.2.1]octane-2,4-dione with lithium aluminum hydride in tetrahydrofuran by the procedure used for the preparation of 3-benzyl-8-methyl-3,8-diazabicyclo[3.2.1]octane, as described in Example 1, gave 8.3 g of crude desired product. Chromatography on 124 g alumina with chloroform elution gave 6.9 g (81%) of pure, oil 8-benzyl-3-methyl-3,8-diazabicyclo[3.2.1]octane. The hydrochloride salt, formed in diethyl ether by addition of three equivalents of ethanolic hydrogen chloride, melted at 263.5°-272°C (dec.) with sublimation above 180°C. gave 8.3 g of crude desired product Chromatography on 124 g alumina with chloroform elution

反应条件: temp:0.00; pressure:0.00; stir: