4-iodo-2,3-dimethylaniline

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

Procedure: 4-Iodo-2,3-dimethylaniline was converted to 4-iodo-2,3-dimethylphenyl isothiocyanate according to Method A2b. 1-Hydroxymethylcyclopentanamine was prepared according to Method B1c. The 2-hydroxyethylamine was sequentially reacted with SOCl2 and 4-iodo-2,3-dimethylphenyl isothiocyanate according to Method C2a to give 2-(4-iodo-2,3-dimethylphenylimino)-3-thia-1-azaspiro[4.4]nonane. The thiazolidine was reacted with cyclopentyl bromide according to Method D2b to give 2-(4-iodo-2,3-dimethylphenylimino)-1-cyclopentyl-3-thia-1-azaspiro[4.4]nonane. The phenyl iodide was reacted with CuCN according to Method D7a to afford 2-(4-cyano-2,3-dimethylphenylimino)-1-cyclopentyl-3-thia-1-azaspiro[4.4]nonane.

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

Procedure: 4-Iodo-2,3-dimethylaniline was converted to 4-iodo-2,3-dimethylphenyl isothiocyanate according to Method A2b. 1-Hydroxymethylcyclopentanamine was prepared according to Method B1c. The 2-hydroxyethylamine was sequentially reacted with SOCl2 and 4-iodo-2,3-dimethylphenyl isothiocyanate according to Method C2a to give 2-(4-iodo-2,3-dimethylphenylimino)-3-thia-1-azaspiro[4.4]nonane. The thiazolidine was reacted with cyclopentyl bromide according to Method D2b to give 2-(4-iodo-2,3-dimethylphenylimino)-1-cyclopentyl-3-thia-1-azaspiro[4.4]nonane. The phenyl iodide was reacted with CuCN according to Method D7a to afford 2-(4-cyano-2,3-dimethylphenylimino)-1-cyclopentyl-3-thia-1-azaspiro[4.4]nonane.

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

Procedure: 2,3-Dimethylaniline was converted to 2,3-dimethyl-4-iodoaniline according to Method A5a. The aniline was converted to 2,3-dimethyl-4-iodophenyl isothiocyanate according to Method A2a, Step 3. 1-Amino-1-(hydroxymethyl)cyclopentane was synthesized as described in Method B1c. The 2-hydroxyethylamine was reacted with SOCl2 according to Method B7e to give 1-amino-1-(chloromethyl)cyclopentane HCl salt. The 2-chloroethylamine was reacted with 2,3-dimethyl-4-iodophenyl isothiocyanate according to Method C1e to give 2-(2,3-dimethyl-4-iodophenylimino)-1-thia-3-azaspiro[4.4]nonane. The thiazolidine was reacted with isobutyl bromide according to Method D2h to give 3-isobutyl-2-(4-iodo-2-n-propylphenylimino)-1-thia-3-azaspiro[4.4]nonane.

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

Procedure: 2,3-Dimethylaniline was converted to 2,3-dimethyl-4-iodoaniline according to Method A5a. The aniline was converted to 2,3-dimethyl-4-iodophenyl isothiocyanate according to Method A2a, Step 3. 1-Amino-1-(hydroxymethyl)cyclopentane was synthesized as described in Method B1c. The 2-hydroxyethylamine was reacted with SOCl2 followed by 2,3-dimethyl-4-iodophenyl isothiocyanate according to Method C2a to give 2-(2,3-dimethyl-4-iodophenylimino)-1-thia-3-azaspiro[4.4]nonane. The thiazolidine was reacted with isobutyl bromide according to Method D2a to give 3-isobutyl-2-(4-iodo-2-n-propylphenylimino)-1-thia-3-azaspiro[4.4]nonane. The phenyl iodide was reacted with trimethylsilylacetylene according to Method D8a, Step 1 to give 3-isobutyl-2-(2,3-dimethyl-4-(2-trimethylsilylethynyl)phenylimino)-1-thia-3-azaspiro[4.4]nonane. The silylacetylene was deprotected according to Method D8a, Step 2 to afford 3-isobutyl-2-(2,3-dimethyl-4-ethynylphenylimino)-1-thia-3-azaspiro[4.4]nonane.

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

Procedure: 2,3-Dimethylaniline was converted to 2,3-dimethyl-4-iodoaniline according to Method A5a. The aniline was converted to 2,3-dimethyl-4-iodophenyl isothiocyanate according to Method A2a, Step 3. 1-Amino-1-(hydroxymethyl)cyclopentane was synthesized as described in Method B1c. The 2-hydroxyethylamine was reacted with SOCl2 followed by 2,3-dimethyl-4-iodophenyl isothiocyanate according to Method C2a to give 2-(2,3-dimethyl-4-iodophenylimino)-1-thia-3-azaspiro[4.4]nonane. The thiazolidine was reacted with isobutyl bromide according to Method D2a to give 3-isobutyl-2-(4-iodo-2-n-propylphenylimino)-1-thia-3-azaspiro[4.4]nonane. The phenyl iodide was reacted with trimethylsilylacetylene according to Method D8a, Step 1 to give 3-isobutyl-2-(2,3-dimethyl-4-(2-trimethylsilylethynyl)phenylimino)-1-thia-3-azaspiro[4.4]nonane. The silylacetylene was deprotected according to Method D8a, Step 2 to afford 3-isobutyl-2-(2,3-dimethyl-4-ethynylphenylimino)-1-thia-3-azaspiro[4.4]nonane.

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

Procedure: 2,3-Dimethylaniline was converted to 2,3-dimethyl-4-iodoaniline according to Method A5a. The aniline was converted to 2,3-dimethyl-4-iodophenyl isothiocyanate according to Method A2a, Step 3. 1-Amino-1-(hydroxymethyl)cyclopentane was synthesized as described in Method B1c. The 2-hydroxyethylamine was reacted with SOCl2 according to Method B7e to give 1-amino-1-(chloromethyl)cyclopentane HCl salt. The 2-chloroethylamine was reacted with 2,3-dimethyl-4-iodophenyl isothiocyanate according to Method C1e to give 2-(2,3-dimethyl-4-iodophenylimino)-1-thia-3-azaspiro[4.4]nonane. The thiazolidine was reacted with isobutyl bromide according to Method D2h to give 3-isobutyl-2-(4-iodo-2-n-propylphenylimino)-1-thia-3-azaspiro[4.4]nonane. The phenyl iodide was reacted with CuCN according to Method D7a to afford 3-isobutyl-2-(2,3-dimethyl-4-cyanophenylimino)-1-thia-3-azaspiro[4.4]nonane.

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

Procedure: 2,3-Dimethylaniline was converted to 2,3-dimethyl-4-iodoaniline according to Method A5a. The aniline was converted to 2,3-dimethyl-4-iodophenyl isothiocyanate according to Method A2a, Step 3. 1-Amino-1-(hydroxymethyl)cyclopentane was synthesized as described in Method B1c. The 2-hydroxyethylamine was reacted with SOCl2 according to Method B7e to give 1-amino-1-(chloromethyl)cyclopentane HCl salt. The 2-chloroethylamine was reacted with 2,3-dimethyl-4-iodophenyl isothiocyanate according to Method C1e to give 2-(2,3-dimethyl-4-iodophenylimino)-1-thia-3-azaspiro[4.4]nonane. The thiazolidine was reacted with isobutyl bromide according to Method D2h to give 3-isobutyl-2-(4-iodo-2-n-propylphenylimino)-1-thia-3-azaspiro[4.4]nonane. The phenyl iodide was reacted with CuCN according to Method D7a to afford 3-isobutyl-2-(2,3-dimethyl-4-cyanophenylimino)-1-thia-3-azaspiro[4.4]nonane.

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

Procedure: 4-Iodo-2,3-dimethylaniline was converted into 4-iodo-2,3-dimethylphenyl isothiocyanate in a manner analogous to Method A2b. 2-(2,3-Dimethyl-4-iodophenylimino)-3-thia-1-azaspiro[4.4]nonane was prepared in a manner analogous to that described in Method C2a, then was alkylated with isobutyl bromide in a manner analogous to that described in Method D2a. A mixture of the iodophenyl compound (0.009 g, 0.021 mmol), (trimethylsilyl)acetylene (30 mL, 0.21 mmol), Pd(PPh3)2Cl2 (0.005 g) and CuI (0.012 g, 0.063 mmol) in Et3N (2 mL) was stirred at room temp. for 18 h. The resulting slurry was filtered, and the filtrate was concentrated under reduced pressure. The residue was purified by preparative TLC (2% EtOAc/hex) to give 2-(2,3-dimethyl-4-(2-trimethylsilyl-1-ethynyl)phenylimino)-1-isobutyl-3-thia-1-azaspiro[4.4]nonane (0.005 g, 59%). The resulting slurry was filtered the filtrate was concentrated under reduced pressure The residue was purified by preparative TLC (2% EtOAc/hex)

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

Procedure: 4-Iodo-2,3-dimethylaniline was converted into 4-iodo-2,3-dimethylphenyl isothiocyanate in a manner analogous to Method A2b. 2-(2,3-Dimethyl-4-iodophenylimino)-3-thia-1-azaspiro[4.4]nonane was prepared in a manner analogous to that described in Method C2a, then was alkylated with isobutyl bromide in a manner analogous to that described in Method D2a. A mixture of the iodophenyl compound (0.009 g, 0.021 mmol), (trimethylsilyl)acetylene (30 mL, 0.21 mmol), Pd(PPh3)2Cl2 (0.005 g) and CuI (0.012 g, 0.063 mmol) in Et3N (2 mL) was stirred at room temp. for 18 h. The resulting slurry was filtered, and the filtrate was concentrated under reduced pressure. The residue was purified by preparative TLC (2% EtOAc/hex) to give 2-(2,3-dimethyl-4-(2-trimethylsilyl-1-ethynyl)phenylimino)-1-isobutyl-3-thia-1-azaspiro[4.4]nonane (0.005 g, 59%). The resulting slurry was filtered the filtrate was concentrated under reduced pressure The residue was purified by preparative TLC (2% EtOAc/hex)

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

Procedure: 4-Iodo-2,3-dimethylaniline was converted to 4-iodo-2,3-dimethylphenyl isothiocyanate according to Method A2b. 1-Hydroxymethylcyclopentanamine was prepared according to Method B1c. The 2-hydroxyethylamine was sequentially reacted with SOCl2 and 4-iodo-2,3-dimethylphenyl isothiocyanate according to Method C2a to give 2-(4-iodo-2,3-dimethylphenylimino)-3-thia-1-azaspiro[4.4]nonane. The thiazolidine was reacted with cyclopentyl bromide according to Method D2b to give 2-(4-iodo-2,3-dimethylphenylimino)-1-cyclopentyl-3-thia-1-azaspiro[4.4]nonane. The phenyl iodide was reacted with CuCN according to Method D7a to afford 2-(4-cyano-2,3-dimethylphenylimino)-1-cyclopentyl-3-thia-1-azaspiro[4.4]nonane.

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

Procedure: 2,3-Dimethylaniline was converted to 2,3-dimethyl-4-iodoaniline according to Method A5a. The aniline was converted to 2,3-dimethyl-4-iodophenyl isothiocyanate according to Method A2a, Step 3. 1-Amino-1-(hydroxymethyl)cyclopentane was synthesized as described in Method B1c. The 2-hydroxyethylamine was reacted with SOCl2 according to Method B7e to give 1-amino-1-(chloromethyl)cyclopentane HCl salt. The 2-chloroethylamine was reacted with 2,3-dimethyl-4-iodophenyl isothiocyanate according to Method C1e to give 2-(2,3-dimethyl-4-iodophenylimino)-1-thia-3-azaspiro[4.4]nonane. The thiazolidine was reacted with isobutyl bromide according to Method D2h to give 3-isobutyl-2-(4-iodo-2-n-propylphenylimino)-1-thia-3-azaspiro[4.4]nonane.

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

Procedure: 2,3-Dimethylaniline was converted to 2,3-dimethyl-4-iodoaniline according to Method A5a. The aniline was converted to 2,3-dimethyl-4-iodophenyl isothiocyanate according to Method A2a, Step 3. 1-Amino-1-(hydroxymethyl)cyclopentane was synthesized as described in Method B1c. The 2-hydroxyethylamine was reacted with SOCl2 followed by 2,3-dimethyl-4-iodophenyl isothiocyanate according to Method C2a to give 2-(2,3-dimethyl-4-iodophenylimino)-1-thia-3-azaspiro[4.4]nonane. The thiazolidine was reacted with isobutyl bromide according to Method D2a to give 3-isobutyl-2-(4-iodo-2-n-propylphenylimino)-1-thia-3-azaspiro[4.4]nonane. The phenyl iodide was reacted with trimethylsilylacetylene according to Method D8a, Step 1 to give 3-isobutyl-2-(2,3-dimethyl-4-(2-trimethylsilylethynyl)phenylimino)-1-thia-3-azaspiro[4.4]nonane. The silylacetylene was deprotected according to Method D8a, Step 2 to afford 3-isobutyl-2-(2,3-dimethyl-4-ethynylphenylimino)-1-thia-3-azaspiro[4.4]nonane.