Intermediate of Darunavir

1.

[CAS NO.]:160232-08-6

[Chemical Name]:
tert-Butyl [(1S,2R)-1-Benzyl-2-hydroxy-3-(isobutylamino)propyl]carbamate

[Structure] : 

2.

[CAS NO.]:191226-98-9

[Chemical Name]:
tert-Butyl[(1S,2R)-1-benzyl-2-hydroxy-3-[isobutyl[(4-nitrophenyl)sulfonyl]amino]propyl]carbamate

[Structure] : 

3.

[CAS NO.]:169280-56-2

[Chemical Name]:
4-Amino-N-((2R,3S)-3-amino-2-hydroxy-4-phenylbutyl)-N-isobutylbenzenesulfonamide

[Structure] : 

4.
[Chemical Name]:
1-({[(3R,3aS,6aR)-hexahydrofuro[2,3-b]furan-3-yloxy]carbonyl}oxy)pyrrolidine-2,5-dione

[CAS NO.]:253265-97-3
[Structure] :

5.
[Chemical Name]: [(1S,2R)-1-Benzyl-2-hydroxy-3-[isobutyl-[(4-aminophenyl)sulfonyl]amino] propyl]-carbamic Acid tert-Butyl Ester
[CAS NO.]:183004-94-6
[Structure] :