反应详情

(1R)-1-(Hydroxymethyl)-3-methylbutylamine was made from (D)-leucine methyl ester according to B1b. The 2-hydroxyethylamine was converted to (1R)-1-(chloromethyl)-3-methylbutanammonium chloride as described in Method B7a. 2-Methyl-5-nitrophenyl isothiocyanate was reacted with (1R)-1-(chloromethyl)-3-methylbutanammonium chloride according to Method C1a to give (4R)-2-(2-methyl-5-nitrophenylimino)-4-isobutyl-1,3-thiazolidine. The thiazolidine was reacted with isobutyl bromide according to Method D2a to afford (4R)-2-(N-isobutyl-N-(2-methyl-5-nitrophenyl)amino)-4-isobutyl-1,3-thiazoline HCl salt.