Ethanolamine → (4S)-4-Isobutyl-2-isopropyloxazolidine

Participants

Reaction Steps

(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.

Provenance & Evidence