017 as a free ligand exists in 58 entries. Examples include: 3PWM 3EKT 3T3C

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Chemical Component Summary

Identifiers[(3R,3aS,6aR)-2,3,3a,4,5,6a-hexahydrofuro[2,3-b]furan-3-yl] N-[(2S,3R)-4-[(4-aminophenyl)sulfonyl-(2-methylpropyl)amino]-3-hydroxy-1-phenyl-butan-2-yl]carbamate
FormulaC27 H37 N3 O7 S
Molecular Weight547.66
Isomeric SMILESCC(C)CN(C[C@@H](O)[C@H](Cc1ccccc1)NC(=O)O[C@H]1CO[C@H]2OCC[C@@H]12)S(=O)(=O)c1ccc(N)cc1

Chemical Details

Formal Charge0
Atom Count75
Chiral Atom Count5
Chiral AtomsC17, C19, C24, C27, C31
Bond Count78
Aromatic Bond Count12
Leaving Atomsn/a

Drug Info: DrugBank

DrugBank IDDB01264 Different stereochemistry
DescriptionDarunavir is a protease inhibitor used to treat HIV. It acts on the HIV aspartyl protease which the virus needs to cleave the HIV polyprotein into its functional fragments.
  • (3R,3AS,6ar)-hexahydrofuro[2,3-b]furan-3-yl N-((1S,2R)-1-benzyl-2-hydroxy-3-(N(1)-isobutylsulfanilamido)propyl)carbamate
  • (3R,3AS,6ar)-hexahydrofuro[2,3-b]furan-3-yl(1S,2R)-3-[[(4-aminophenyl)sulfonyl](isobutyl)amino]-1-benzyl-2-hydroxypropylcarbamate
  • (3R,3AS,6ar)-tetrahydro-2H-furo[2,3-b]furan-3-yl (2S,3R)-4-(4-amino-N-isobutylphenylsulfonamido)-3-hydroxy-1-phenylbutan-2-ylcarbamate
  • (3R,3AS,6ar)-tetrahydro-2H-furo[2,3-b]furan-3-yl (2S,3R)-4-(4-amino-N-neopentylphenylsulfonamido)-3-hydroxy-1-phenylbutan-2-ylcarbamate
  • [(S)-3-[(4-Amino-benzenesulfonyl)-isobutyl-amino]-2-hydroxy-1-((R)-phenylmethyl)-propyl]-carbamic acid (3R,3as,6ar)-(hexahydro-furo[2,3-b]furan-3-yl) ester
SaltsDarunavir ethanolate
Brand Names
  • Pat-darunavir
  • Prezcobix
  • Prezista
Affected OrganismHuman Immunodeficiency Virus
IndicationDarunavir, co-administered with ritonavir, and with other antiretroviral agents, is indicated for the treatment of human immunodeficiency virus (HIV) infection in antiretroviral treatment-experienced adult patients, such as those with HIV-1 strains resistant to more than one protease inhibitor.
PharmacologyDarunavir is an inhibitor of the human immunodeficiency virus (HIV) protease. In studies, the drug, co-administered with ritonavir in combination therapy, significantly reduced viral load and increased CD4 cell counts in this treatment-experienced patient population (Tibotec, 2006, Product Monograph, Prezista 2006). Darunavir is used as an adjunct therapy with low dose ritonavir, which inhibits cytochrome P450 3A (CYP3A) which increases the bioavailability and half life of darunavir.
Mechanism of actionDarunavir is a HIV protease inhibitor which prevents HIV replication by binding to the enzyme's active site, thereby preventing the dimerization and the catalytic activity of the HIV-1 protease. Darunavir selectively inhibits the cleavage of HIV encoded Gag-Pol polyproteins in virus-infected cells, which prevents the formation of mature infectious virus particles. Structual analyses suggests that the close contact that darunavir has with the main chains of the protease active site amino acids (Asp-29 and Asp-30) is an important contributing factor to its potency and wide spectrum of activity against multi-protease inhibitor resistant HIV-1 variants. Darunavir can also adapt to the changing shape of a protease enzyme because of its molecular flexibility. Darunavir is known to bind to two distinct sites on the enzyme: the active site cavity and the surface of one of the flexible flaps in the protease dimer.
Route of administrationOral
  • Acids, Acyclic
  • Amides
  • Anti-HIV Agents
  • Anti-Infective Agents
  • Anti-Retroviral Agents
  • J05AE10
  • J05AR14
CAS number206361-99-1

Drug Targets

NameSequence SearchPharmacological ActionActions
Drug Info/Drug Targets: DrugBank 3.0: a comprehensive resource for 'omics' research on drugs. Knox C, Law V, Jewison T, Liu P, Ly S, Frolkis A, Pon A, Banco K, Mak C, Neveu V, Djoumbou Y, Eisner R, Guo AC, Wishart DS. Nucleic Acids Res. 2011 Jan; 39 (Database issue):D1035-41. | PMID:21059682