(2S)-2-amino-4-methylpentan-1-ol

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

Procedure: (1S)-1-(Hydroxymethyl)-3-methylbutylamine was made from (L)-leucine methyl ester as described in Method B1b. The 2-hydroxyethylamine was converted to (1S)-1-(chloromethyl)-3-methylbutanammonium chloride as described in Method B7a. 2,3-Dichlorophenyl isothiocyanate was reacted with (1S)-1-(chloromethyl)-3-methylbutanammonium chloride according to Method C1a to give (4S)-2-(2,3-dichlorophenylimino)-4-isobutyl-1,3-thiazolidine. The thiazolidine was reacted with 3-bromopentane according to Method D2a to afford (4S)-2-(N-(3-pentyl)-2-methyl-4-nitrophenylamino)-4-isobutyl-1,3-thiazoline.

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

Procedure: (1S)-1-(Hydroxymethyl)-3-methylbutylamine was made from (L)-leucine methyl ester as described in Method B1b. The 2-hydroxyethylamine was converted to (1S)-1-(chloromethyl)-3-methylbutanammonium chloride as described in Method B7a. 2,3-Dichlorophenyl isothiocyanate was reacted with (1S)-1-(chloromethyl)-3-methylbutanammonium chloride according to Method C1a to give (4S)-2-(2,3-dichlorophenylimino)-4-isobutyl-1,3-thiazolidine. The thiazolidine was reacted with 3-bromopentane according to Method D2a to afford (4S)-2-(N-(3-pentyl)-2-methyl-4-nitrophenylamino)-4-isobutyl-1,3-thiazoline.

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

Procedure: (1S)-1-(Hydroxymethyl)-3-methylbutylamine was made from (L)-leucine methyl ester as described in Method B1b. The 2-hydroxyethylamine was converted to (1S)-1-(chloromethyl)-3-methylbutanammonium chloride as described in Method B7a. 2-Methyl-4-nitrophenyl isothiocyanate was reacted with (1S)-1-(chloromethyl)-3-methylbutanammonium chloride according to Method C1a to give (4S)-2-(2-methyl-4nitrophenylimino)-4-isobutyl-1,3-thiazolidine. The thiazolidine was reacted with neopentyl bromide according to Method D2a to afford (4S)-2-(N-(2,2-dimethylpropyl)-2-methyl-4-nitrophenylamino)-4-isobutyl-1,3-thiazoline.

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

Procedure: (1S)-1-(Hydroxymethyl)-3-methylbutylamine was made from (L)-leucine methyl ester as described in Method B1b. The 2-hydroxyethylamine was converted to (1S)-1-(chloromethyl)-3-methylbutanammonium chloride as described in Method B7a. 2-Methyl-4-nitrophenyl isothiocyanate was reacted with (1S)-1-(chloromethyl)-3-methylbutanammonium chloride according to Method C1a to give (4S)-2-(2-methyl-4nitrophenylimino)-4-isobutyl-1,3-thiazolidine. The thiazolidine was reacted with neopentyl bromide according to Method D2a to afford (4S)-2-(N-(2,2-dimethylpropyl)-2-methyl-4-nitrophenylamino)-4-isobutyl-1,3-thiazoline.

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

Procedure: (1S)-1-(Hydroxymethyl)-3-methylbutylamine was made from (L)-leucine methyl ester as described in Method B1b. The 2-hydroxyethylamine was converted to (1S)-1-(chloromethyl)-3-methylbutanammonium chloride as described in Method B7a. 2-Methyl-4-nitrophenyl isothiocyanate was reacted with (1S)-1-(chloromethyl)-3-methylbutanammonium chloride according to Method C1a to give (4S)-2-(2-methyl-4-nitrophenylimino)-4-isobutyl-1,3-thiazolidine. The thiazolidine was reacted with 5-iodoheptane according to Method D2a to give (4S)-2-(N-(4-heptyl)-N-(2-methyl-5-nitrophenyl)amino)-4-isobutyl-1,3-thiazoline.

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

Procedure: (L)-Leucine methyl ester was reduced to (1S)-1-(hydroxymethyl)-3-methylbutylamine according to Method B1b, Step 2. The 2-hydroxyethylamine was reacted with isobutyraldehyde according to Method B4c, Step 1 to afford (4S)-2-isopropyl-4-isobutyl-1,3-oxazolidine. The oxazolidine was reduced according to Method B4c, Step 2 to give (1S)-1-(hydroxymethyl)-N-isobutyl-3-methylbutylamine. 4-Amino-3-ethylbenzonitrile was converted to 4-cyano-2-ethylformanilide according to Method A3a, Step 1. The formanilide was reacted with SOCl2 and SO2Cl2 according to Method A3a, Step 2 to give 4-cyano-2-ethylphenyl isocyanide dichloride. The substituted 2-hydroxyethylamine was reacted with 4-cyano-2-ethylphenyl isocyanide dichloride according to Method C7b to afford (4S)-2-(4-cyano-2-ethylphenylimino)-3,4-diisobutyl-1,3-oxazolidine.

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

Procedure: (L)-Leucine methyl ester was reduced to (1S)-1-(hydroxymethyl)-3-methylbutylamine according to Method B1b, Step 2. The 2-hydroxyethylamine was reacted with isobutyraldehyde according to Method B4c, Step 1 to afford (4S)-2-isopropyl-4-isobutyl-1,3-oxazolidine. The oxazolidine was reduced according to Method B4c, Step 2 to give (1S)-1-(hydroxymethyl)-N-isobutyl-3-methylbutylamine. 4-Amino-3-ethylbenzonitrile was converted to 4-cyano-2-ethylformanilide according to Method A3a, Step 1. The formanilide was reacted with SOCl2 and SO2Cl2 according to Method A3a, Step 2 to give 4-cyano-2-ethylphenyl isocyanide dichloride. The substituted 2-hydroxyethylamine was reacted with 4-cyano-2-ethylphenyl isocyanide dichloride according to Method C7b to afford (4S)-2-(4-cyano-2-ethylphenylimino)-3,4-diisobutyl-1,3-oxazolidine.

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

Procedure: (L)-Leucine methyl ester was reduced to (1S)-1-(hydroxymethyl)-3-methylbutylamine according to Method B1b, Step 2. The 2-hydroxyethylamine was reacted with isobutyraldehyde according to Method B4c, Step 1 to afford (4S)-2-isopropyl-4-isobutyl-1,3-oxazolidine. The oxazolidine was reduced according to Method B4c, Step 2 to give (1S)-1-(hydroxymethyl)-N-isobutyl-3-methylbutylamine. The substituted 2-hydroxyethylamine was reacted with SOCl2 according to Method B7b to give (1S)-1-(chloromethyl)-N-isobutyl-3-methylbutylamine. The chloroethylamine was reacted with 2-methyl-4-nitrophenyl isocyanate according to Method C4a to afford (4S)-2-(2-methyl-4-nitrophenylimino)-3,4-diisobutyl-1,3-oxazolidine.

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

Procedure: (L)-Leucine methyl ester was reduced to (1S)-1-(hydroxymethyl)-3-methylbutylamine according to Method B1b, Step 2. The 2-hydroxyethylamine was reacted with isobutyraldehyde according to Method B4c, Step 1 to afford (4S)-2-isopropyl-4-isobutyl-1,3-oxazolidine. The oxazolidine was reduced according to Method B4c, Step 2 to give (1S)-1-(hydroxymethyl)-N-isobutyl-3-methylbutylamine. The substituted 2-hydroxyethylamine was reacted with SOCl2 according to Method B7b to give (1S)-1-(chloromethyl)-N-isobutyl-3-methylbutylamine. The chloroethylamine was reacted with 2-methyl-4-nitrophenyl isocyanate according to Method C4a to afford (4S)-2-(2-methyl-4-nitrophenylimino)-3,4-diisobutyl-1,3-oxazolidine.

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

Procedure: (1S)-1-(Hydroxymethyl)-3-methylbutylamine was made from (L)-leucine methyl ester as described in Method B1b. The 2-hydroxyethylamine was converted to (2S)-4-methyl-2-(isobutylamino)pentan-1-ol as described in Method B4c. The resulting 2-hydroxyethylamine was converted to N-(1S)-1-(chloromethyl)-3-methylbutyl)-N-(isobutyl)ammonium chloride according to Method B7c. 4-Cyanophenyl isothiocyanate was reacted with N-(1S)-1-(chloromethyl)-3methylbutyl)N-(isobutyl)ammonium chloride to Method C1f to afford (4S)-2-(4-cyanophenylimino)-3,4-diisobutyl-1,3-thiazolidine.

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

Procedure: (1S)-1-(Hydroxymethyl)-3-methylbutylamine was made from (L)-leucine methyl ester as described in Method B1b. The 2-hydroxyethylamine was converted to (2S)-4-methyl-2-(isobutylamino)pentan-1-ol as described in Method B4c. The resulting 2-hydroxyethylamine was converted to N-(1S)-1-(chloromethyl)-3-methylbutyl)-N-(isobutyl)ammonium chloride according to Method B7c. 4-Cyanophenyl isothiocyanate was reacted with N-(1S)-1-(chloromethyl)-3methylbutyl)N-(isobutyl)ammonium chloride to Method C1f to afford (4S)-2-(4-cyanophenylimino)-3,4-diisobutyl-1,3-thiazolidine.

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

Procedure: (1S)-1-(Hydroxymethyl)-3-methylbutylamine was made from (L)-leucine methyl ester as described in Method B1b. The 2-hydroxyethylamine was converted to (2S)-4-methyl-2-(isobutylamino)pentan-1-ol as described in Method B4c. The resulting 2-hydroxyethylamine was converted to N-(1S)-1-(chloromethyl)-3-methylbutyl)-N-(isobutyl)ammonium chloride according to Method B7c. 4-Nitrophenyl isothiocyanate was reacted with N-(1S)-1-(chloromethyl)-3-methylbutyl)-N-(isobutyl)ammonium chloride to Method C1f to afford (4S)-2-(4-nitrophenylimino)-3,4-diisobutyl-1,3-thiazolidine.