From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
RU-58841 structure.svg
Clinical data
SynonymsPSK-3841; HMR-3841
Drug classNonsteroidal antiandrogen
CAS Number
PubChem CID
Chemical and physical data
Molar mass369.34 g·mol−1
3D model (JSmol)

RU-58841, also known as PSK-3841 or HMR-3841, is a nonsteroidal antiandrogen (NSAA) which was formerly under investigation by ProStrakan (previously ProSkelia and Strakan) for potential use as a topical treatment for androgen-dependent conditions including acne, pattern hair loss, and excessive hair growth.[1][2][3] The compound is similar in structure to the NSAA RU-58642 but contains a different side-chain.[4] These compounds are similar in chemical structure to nilutamide,[5] which is related to flutamide, bicalutamide, and enzalutamide, all of which are NSAAs similarly.[6] RU-58841 can be synthesized either by building the hydantoin moiety or by aryl coupling to 5,5-dimethylhydantoin.[7]

RU-58841 produces cyanonilutamide (RU-56279) and RU-59416 as metabolites in animals.[8] Cyanonilutamide has relatively low affinity for the androgen receptor but shows significant antiandrogenic activity in animals.[8] RU-59416 has very low affinity for the androgen receptor.[8]

Affinities of a selection of androgen receptor
ligands at steroid hormone receptors

Compound AR ER PR GR MR
Metribolone 290 < 0.1 190 4 38
Dihydrotestosterone 180 ND ND ND ND
Testosterone 100 ND ND ND ND
Cyproterone acetate 10 ND ND ND ND
Bicalutamide 1.8 ND ND ND ND
Nilutamide 0.8 ND ND ND ND
Hydroxyflutamide 0.8 ND ND ND ND
RU-59063 300 <0.1 <0.1 <0.1 <0.1
RU-58841 150 ND ND ND ND
RU-58642 46 <0.1 <0.1 <0.1 <0.1
RU-57073 163 <0.1 <0.1 <0.1 <0.1
RU-56187 92 <0.1 <0.1 <0.1 <0.1
Notes: Values are RBAs (%). Reference ligands (100%) were testosterone for the AR, estradiol for the ERα and ERβ, progesterone for the PR, dexamethasone for the GR, and aldosterone for the MR. Sources: [9][2][10]

See also[edit]


  1. ^ PSK-3841 (HMR-3841, RU-58841) - AdisInsight
  2. ^ a b Battmann T, Bonfils A, Branche C, Humbert J, Goubet F, Teutsch G, Philibert D (January 1994). "RU 58841, a new specific topical antiandrogen: a candidate of choice for the treatment of acne, androgenetic alopecia and hirsutism". J. Steroid Biochem. Mol. Biol. 48 (1): 55–60. doi:10.1016/0960-0760(94)90250-X. PMID 8136306.
  3. ^ Münster U, Nakamura C, Haberland A, Jores K, Mehnert W, Rummel S, Schaller M, Korting HC, Zouboulis C, Blume-Peytavi U, Schäfer-Korting M (January 2005). "RU 58841-myristate--prodrug development for topical treatment of acne and androgenetic alopecia". Pharmazie. 60 (1): 8–12. PMID 15700772.
  4. ^ Van Dort ME, Jung YW (April 2001). "Synthesis and structure-activity studies of side-chain derivatized arylhydantoins for investigation as androgen receptor radioligands". Bioorg. Med. Chem. Lett. 11 (8): 1045–7. doi:10.1016/s0960-894x(01)00146-9. PMID 11327585.
  5. ^ Poulos GA, Mirmirani P (February 2005). "Investigational medications in the treatment of alopecia". Expert Opin Investig Drugs. 14 (2): 177–84. doi:10.1517/13543784.14.2.177. PMID 15757393.
  6. ^ Elancheran, R.; Maruthanila, V. L.; Ramanathan, M.; Kabilan, S.; Devi, R.; Kunnumakara, A.; Kotoky, Jibon (2015). "Recent discoveries and developments of androgen receptor based therapy for prostate cancer". MedChemComm. 6 (5): 746–768. doi:10.1039/C4MD00416G. ISSN 2040-2503.
  7. ^ Leonard, Matthew J.; Lingham, Anthony R.; Niere, Julie O.; Jackson, Neale R. C.; McKay, Peter G.; Hügel, Helmut M. (2014). "Alternative synthesis of the anti-baldness compound RU58841". RSC Adv. 4 (27): 14143–14148. doi:10.1039/C4RA00332B. ISSN 2046-2069.
  8. ^ a b c Cousty-Berlin D, Bergaud B, Bruyant MC, Battmann T, Branche C, Philibert D (October 1994). "Preliminary pharmacokinetics and metabolism of novel non-steroidal antiandrogens in the rat: relation of their systemic activity to the formation of a common metabolite". J. Steroid Biochem. Mol. Biol. 51 (1–2): 47–55. doi:10.1016/0960-0760(94)90114-7. PMID 7947350.
  9. ^ Teutsch G, Goubet F, Battmann T, Bonfils A, Bouchoux F, Cerede E, Gofflo D, Gaillard-Kelly M, Philibert D (January 1994). "Non-steroidal antiandrogens: synthesis and biological profile of high-affinity ligands for the androgen receptor". The Journal of Steroid Biochemistry and Molecular Biology. 48 (1): 111–9. doi:10.1016/0960-0760(94)90257-7. PMID 8136296.
  10. ^ Battmann T, Branche C, Bouchoux F, Cerede E, Philibert D, Goubet F, Teutsch G, Gaillard-Kelly M (January 1998). "Pharmacological profile of RU 58642, a potent systemic antiandrogen for the treatment of androgen-dependent disorders". J. Steroid Biochem. Mol. Biol. 64 (1–2): 103–11. doi:10.1016/S0960-0760(97)00151-9. PMID 9569015.

Further reading[edit]