非那雄胺杂质18

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

实验步骤: A solution of N-(1,1-dimethylethyl)-3-oxoandrost-4-ene-17β-carboxamide (4.77 g, 12.8 mmole) in methanol (55 mL) and dichloromethane (11 mL) was cooled to 12° C. and treated in one portion with 30% aqueous hydrogen peroxide (3.3 mL) followed by dropwise addition of an aqueous sodium hydroxide solution prepared by dissolving sodium hydroxide (0.38 g) in water (2.2 mL). After one hour, the cooling bath was removed and the reaction was stirred for an additional 3 hours. Most of the solvent was then removed in vacuo. The residue was dissolved in dichloromethane and purified by flash chromatography (hexane-20% ethyl acetate and hexane-40% ethyl acetate) to give N-(1,1-Dimethylethyl)-4,5-epoxy-3-oxoandrostane-17β-carboxamide (3.3 g, 66.2%) as a solid foam. This material was a mixture of the 4α,5β- and 4β,5β-isomers and it was used as is in further reactions. prepared the cooling bath was removed Most of the solvent was then removed in vacuo The residue was dissolved in dichloromethane purified by flash chromatography (hexane-20% ethyl acetate and hexane-40% ethyl acetate)

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

实验步骤: Following a procedure similar to that described in Example 2(c), but using 100 mg of N-t-butyl-3-oxo-4-androstene-17β-carboxamide (prepared as described in Preparation 1), 0.2 ml of diethyl cyanophosphate and 200 mg of a boron trifluoride-diethyl ether complex, 86 mg of the title compound were obtained as a crystalline substance, melting at 198° to 200° C.

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

实验步骤: Following a procedure similar to that described in Example 2(b), but using 9.77 g of S-2-pyridyl 3-oxo-4-androstene-17β-thiocarboxylate [prepared as described in Example 2(a)] and 14 ml of t-butylamine, 8.9 g of the title compound were obtained.

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

实验步骤: A solution of N-(1,1-dimethylethyl)-3-oxoandrost-4-ene-17β-carboxamide (4.77 g, 12.8 mmole) in methanol (55 mL) and dichloromethane (11 mL) was cooled to 12° C. and treated in one portion with 30% aqueous hydrogen peroxide (3.3 mL) followed by dropwise addition of an aqueous sodium hydroxide solution prepared by dissolving sodium hydroxide (0.38 g) in water (2.2 mL). After one hour, the cooling bath was removed and the reaction was stirred for an additional 3 hours. Most of the solvent was then removed in vacuo. The residue was dissolved in dichloromethane and purified by flash chromatography (hexane-20% ethyl acetate and hexane40% ethyl acetate) to give N-(1,1-Dimethylethyl)-4,5-epoxy-3-oxoandrostane-17β-carboxamide (3.3 g, 66.2%) as a solid foam. This material was a mixture of the 4α,5α- and 4β,5β-isomers and it was used as is in further reactions. prepared the cooling bath was removed Most of the solvent was then removed in vacuo The residue was dissolved in dichloromethane purified by flash chromatography (hexane-20% ethyl acetate and hexane40% ethyl acetate)

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

实验步骤: Following a procedure similar to that described in example 2(c), but using 100 mg of N-t-butyl-3-oxo-4-androstene-17β-carboxamide (prepared as described in Preparation 1), 0.2 ml of diethyl cyanophosphate and 200 mg of a boron trifluoride-diethyl ether complex, 86 mg of the title compound were obtained as a crystalline substance, melting at 198° to 200° C.

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

实验步骤: Following a procedure similar to that described in example 2(c), but using 100 mg of N-t-butyl-3-oxo-4-androstene-17β-carboxamide (prepared as described in Preparation 1), 0.2 ml of diethyl cyanophosphate and 200 mg of a boron trifluoride-diethyl ether complex, 86 mg of the title compound were obtained as a crystalline substance, melting at 198° to 200° C.

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

实验步骤: Following a procedure similar to that described in Example 2(b), but using 9.77 g of S-2-pyridyl 3-oxo-4-androstene-17β-thiocarboxylate [prepared as described in Example 2(a)] and 14 ml of t-butylamine, 8.9 g of the title compound were obtained.

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

实验步骤: A solution of N-(1,1-dimethylethyl)-3-oxoandrost-4-ene-17β-carboxamide (4.77 g, 12.8 mmole) in methanol (55 mL) and dichloromethane (11 mL) was cooled to 12° C. and treated in one portion with 30% aqueous hydrogen peroxide (3.3 mL) followed by dropwise addition of an aqueous sodium hydroxide solution prepared by dissolving sodium hydroxide (0.38 g) in water (2.2 mL). After one hour, the cooling bath was removed and the reaction was stirred for an additional 3 hours. Most of the solvent was then removed in vacuo. The residue was dissolved in dichloromethane and purified by flash chromatography (hexane-20% ethyl acetate and hexane-40% ethyl acetate) to give N-(1,1-Dimethylethyl)-4,5-epoxy3-oxoandrostane-17β-carboxamide (3.3 g, 66.2%) as a solid foam. This material was a mixture of the 4α,5α- and 4β,5β-isomers and it was used as is in further reactions. prepared the cooling bath was removed Most of the solvent was then removed in vacuo The residue was dissolved in dichloromethane purified by flash chromatography (hexane-20% ethyl acetate and hexane-40% ethyl acetate)

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

实验步骤: A solution of N-(1,1-dimethylethyl)-3-oxoandrost-4-ene-17β-carboxamide (4.77 g, 12.8 mmole) in methanol (55 mL) and dichloromethane (11 mL) was cooled to 12° C. and treated in one portion with 30% aqueous hydrogen peroxide (3.3 mL) followed by dropwise addition of an aqueous sodium hydroxide solution prepared by dissolving sodium hydroxide (0.38 g) in water (2.2 mL). After one hour, the cooling bath was removed and the reaction was stirred for an additional 3 hours. Most of the solvent was then removed in vacuo. The residue was dissolved in dichloromethane and purified by flash chromatography (hexane-20% ethyl acetate and hexane-40% ethyl acetate) to give N-(1,1-Dimethylethyl)-4,5-epoxy3-oxoandrostane-17β-carboxamide (3.3 g, 66.2%) as a solid foam. This material was a mixture of the 4α,5α- and 4β,5β-isomers and it was used as is in further reactions. prepared the cooling bath was removed Most of the solvent was then removed in vacuo The residue was dissolved in dichloromethane purified by flash chromatography (hexane-20% ethyl acetate and hexane-40% ethyl acetate)

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

实验步骤: A solution of N-(1,1-dimethylethyl)-3-oxoandrost-4-ene-17β-carboxamide (4.77 g, 12.8 mmole) in methanol (55 mL) and dichloromethane (11 mL) was cooled to 12° C. and treated in one portion with 30% aqueous hydrogen peroxide (3.3 mL) followed by dropwise addition of an aqueous sodium hydroxide solution prepared by dissolving sodium hydroxide (0.38 g) in water (2.2 mL). After one hour, the cooling bath was removed and the reaction was stirred for an additional 3 hours. Most of the solvent was then removed in vacuo. The residue was dissolved in dichloromethane and purified by flash chromatography (hexane-20% ethyl acetate and hexane40% ethyl acetate) to give N-(1,1-Dimethylethyl)-4,5-epoxy-3-oxoandrostane-17β-carboxamide (3.3 g, 66.2%) as a solid foam. This material was a mixture of the 4α, 5α- and 4β, 5β-isomers and it was used as is in further reactions. prepared the cooling bath was removed Most of the solvent was then removed in vacuo The residue was dissolved in dichloromethane purified by flash chromatography (hexane-20% ethyl acetate and hexane40% ethyl acetate)

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

实验步骤: Following a procedure similar to that described in Example 2(c), but using 100 mg of N-t-butyl-3-oxo-4-androstene-17β-carboxamide (prepared as described in Preparation 1), 0.2 ml of diethyl cyanophosphate and 200 mg of a boron trifluoride-diethyl ether complex, 86 mg of the title compound were obtained as a crystalline substance, melting at 198° to 200° C.

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

实验步骤: Following a procedure similar to that described in Example 2(b), but using 9.77 g of S-2-pyridyl 3-oxo-4-androstene-17β-thiocarboxylate [prepared as described in Example 2(a)] and 14 ml of t-butylamine, 8.9 g of the title compound were obtained.