1-Bromo-2-methylpropane → (4S)-2-(4-methoxycarbonyl-2-methylphenylimino)-4-(2-butyl)-3-isobutyl-1,3-thiazolidine
Reaktionsgleichung
[CH3:1][O:2][C:3]([C:5]1[CH:10]=[CH:9][C:8]([N:11]=[C:12]2[NH:16][C@@H:15]([CH:17]([CH2:19][CH3:20])[CH3:18])[CH2:14][S:13]2)=[C:7]([CH3:21])[CH:6]=1)=[O:4].[CH2:22](Br)[CH:23]([CH3:25])[CH3:24]>>[CH3:1][O:2][C:3]([C:5]1[CH:10]=[CH:9][C:8]([N:11]=[C:12]2[N:16]([CH2:22][CH:23]([CH3:25])[CH3:24])[C@@H:15]([CH:17]([CH2:19][CH3:20])[CH3:18])[CH2:14][S:13]2)=[C:7]([CH3:21])[CH:6]=1)=[O:4]Komponenten
3
Versuchsvorschrift
(1S)-1-(Hydroxymethyl)-2-methylbutylamine was made from (L)-isoleucine methyl ester as described in Method B1b. The 2-hydroxyethylamine was converted to (1S)-1-(chloromethyl)-2-methylbutanammonium chloride as described in Method B7a. 4-Methoxycarbonyl-2-methylphenyl isothiocyanate was reacted with (1S)-1-(chloromethyl)-2-methylbutanammonium chloride to Method C1a to give (4S)-2-(4-methoxycarbonyl-2-methylphenylimino)-4-(2-butyl)-1,3-thiazolidine. The thiazolidine was reacted with isobutyl bromide according to Method D2a to afford (4S)-2-(4-methoxycarbonyl-2-methylphenylimino)-4-(2-butyl)-3-isobutyl-1,3-thiazolidine.