(2S)-2-Benzyl-1-[(4R)-4-benzyl-2,2-dimethyl-1,3-oxazolan-3-yl]pent-4-en-1-one

The title compound, C 24 H 29 NO 2 , is one of the intermediates of the potent HIV protease inhibitor Indinavir. The oxazolidine ring adopts an envelope conformation. The orientation of the benzyl groups facilitates C-H ··· π interactions, forming molecular chains along the a axis.