for the following products
(2S,3S,5S)-2-Amino-3-hydroxy-5-(tert-butyloxycarbonyl)amino-1,6-diphenyl-hexane hemi succinic acid salt | BDH succinate | Ritonavir intermediate and (2S,3S,5S)-5-tert-Butyloxycarbonylamino-2-amino-3-hydroxy-1,6-diphenylhexane 1/2 succinate