3-bromopentane

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:

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: To 5-(3-(cyclopentyloxy)-4-methoxyphenyl)pyridazin-3-one prepared in Working Example 5, sodium hydride was added and stirred for 1 hour. Then, 3-pentylbromide dissolved in dimethylformamide was added dropwise and stirred for 18 hours. The reaction mixture was poured into ice-cold water and extracted with ethyl acetate. The organic layer was washed with brine, and then dried over anhydrous sodium sulfate. The residue that had been filtered and concentrated was purified by flash chromatography to obtain the title compound. was added was added dropwise stirred for 18 hours The reaction mixture was poured into ice-cold water extracted with ethyl acetate The organic layer was washed with brine dried over anhydrous sodium sulfate The residue that had been filtered concentrated was purified by flash chromatography

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: 1-Hydroxymethylcyclopentanamine was prepared according to Method B1c. The 2-hydroxyethylamine was converted to 1-chloromethylcyclopentanamine HCl salt according to Method B7e. 1-Chloromethylcyclopentanamine HCl salt was reacted with 4-cyano-2-ethylphenyl isothiocyanate according to Method C1e to give 2-(4-cyano-2-ethylphenylimino)-3-thia-1-azaspiro[4.4]nonane. The thiazolidine was reacted with 3-bromopentane according to Method D2b to give 2-(4-cyano-2-ethylphenylimino)-1-(3-pentyl)-3-thia-1-azaspiro[4.4]nonane.

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

Procedure: 1-Hydroxymethylcyclopentanamine was prepared according to Method B1c. The 2-hydroxyethylamine was converted to 1-chloromethylcyclopentanamine HCl salt according to Method B7e. 1-Chloromethylcyclopentanamine HCl salt was reacted with 4-cyano-2-ethylphenyl isothiocyanate according to Method C1e to give 2-(4-cyano-2-ethylphenylimino)-3-thia-1-azaspiro[4.4]nonane. The thiazolidine was reacted with 3-bromopentane according to Method D2b to give 2-(4-cyano-2-ethylphenylimino)-1-(3-pentyl)-3-thia-1-azaspiro[4.4]nonane.