YK-11

YK-11 is a synthetic steroidal selective androgen receptor modulator (SARM).[1][2] It is a gene-selective partial agonist of the androgen receptor (AR) and does not induce the physical interaction between the NTD/AF1 and LBD/AF2 (known as the N/C interaction), which is required for full transactivation of the AR.[1][2] The drug has anabolic activity in vitro in C2C12 myoblasts and shows greater potency than dihydrotestosterone (DHT) in this regard.[2] It has been investigated as a potential treatment for sepsis-induced muscle wasting in animal studies.[3]

YK-11
Clinical data
Other namesYK11; (17α,20E)-17,20-[(1-methoxyethylidene)bis(oxy)]-3-oxo-19-norpregna-4,20-diene-21-carboxylic acid methyl ester
Identifiers
  • Methyl (2E)-2-[(8R,9S,10R,13S,14S,17S)-2'-methoxy-2',13-dimethyl-3-oxospiro[1,2,6,7,8,9,10,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthrene-17,5'-1,3-dioxolane]-4'-ylidene]acetate
CAS Number
PubChem CID
ChemSpider
UNII
Chemical and physical data
FormulaC25H34O6
Molar mass430.541 g·mol−1
3D model (JSmol)
  • C[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@@]24/C(=C\C(=O)OC)/OC(O4)(C)OC)CCC5=CC(=O)CC[C@H]35
  • InChI=1S/C25H34O6/c1-23-11-9-18-17-8-6-16(26)13-15(17)5-7-19(18)20(23)10-12-25(23)21(14-22(27)28-3)30-24(2,29-4)31-25/h13-14,17-20H,5-12H2,1-4H3/b21-14+/t17-,18+,19+,20-,23-,24?,25+/m0/s1
  • Key:KCQHQCDHFVGNMK-PQUNLUOYSA-N

See also

References
  1. Kanno Y, Hikosaka R, Zhang SY, Inoue Y, Nakahama T, Kato K, Yamaguchi A, Tominaga N, Kohra S, Arizono K, Inouye Y (2011). "(17α,20E)-17,20-[(1-methoxyethylidene)bis(oxy)]-3-oxo-19-norpregna-4,20-diene-21-carboxylic acid methyl ester (YK11) is a partial agonist of the androgen receptor". Biological & Pharmaceutical Bulletin. 34 (3): 318–23. doi:10.1248/bpb.34.318. PMID 21372378.
  2. Kanno Y, Ota R, Someya K, Kusakabe T, Kato K, Inouye Y (2013). "Selective androgen receptor modulator, YK11, regulates myogenic differentiation of C2C12 myoblasts by follistatin expression". Biological & Pharmaceutical Bulletin. 36 (9): 1460–5. doi:10.1248/bpb.b13-00231. PMID 23995658.
  3. Lee, Su Jin; Gharbi, Amal; Shin, Joo Eun; Jung, In Duk; Park, Yeong Min (2021-03-05). "Myostatin inhibitor YK11 as a preventative health supplement for bacterial sepsis". Biochemical and Biophysical Research Communications. 543: 1–7. doi:10.1016/j.bbrc.2021.01.030. ISSN 1090-2104. PMID 33588136.
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